diff options
Diffstat (limited to 'tools/power')
| -rw-r--r-- | tools/power/x86/turbostat/Makefile | 1 | ||||
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.8 | 126 | ||||
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 1523 |
3 files changed, 1090 insertions, 560 deletions
diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile index fd8e1f1297a..f8564955419 100644 --- a/tools/power/x86/turbostat/Makefile +++ b/tools/power/x86/turbostat/Makefile @@ -1,4 +1,5 @@ turbostat : turbostat.c +CFLAGS += -Wall clean : rm -f turbostat diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8 index adf175f6149..e4d0690cccf 100644 --- a/tools/power/x86/turbostat/turbostat.8 +++ b/tools/power/x86/turbostat/turbostat.8 @@ -4,15 +4,11 @@ turbostat \- Report processor frequency and idle statistics .SH SYNOPSIS .ft B .B turbostat -.RB [ "\-s" ] -.RB [ "\-v" ] -.RB [ "\-M MSR#" ] +.RB [ Options ] .RB command .br .B turbostat -.RB [ "\-s" ] -.RB [ "\-v" ] -.RB [ "\-M MSR#" ] +.RB [ Options ] .RB [ "\-i interval_sec" ] .SH DESCRIPTION \fBturbostat \fP reports processor topology, frequency @@ -27,12 +23,23 @@ supports an "invariant" TSC, plus the APERF and MPERF MSRs. on processors that additionally support C-state residency counters. .SS Options -The \fB-s\fP option prints only a 1-line summary for each sample interval. +The \fB-p\fP option limits output to the 1st thread in 1st core of each package. +.PP +The \fB-P\fP option limits output to the 1st thread in each Package. +.PP +The \fB-S\fP option limits output to a 1-line System Summary for each interval. .PP The \fB-v\fP option increases verbosity. .PP -The \fB-M MSR#\fP option dumps the specified MSR, -in addition to the usual frequency and idle statistics. +The \fB-s\fP option prints the SMI counter, equivalent to "-c 0x34" +.PP +The \fB-c MSR#\fP option includes the delta of the specified 32-bit MSR counter. +.PP +The \fB-C MSR#\fP option includes the delta of the specified 64-bit MSR counter. +.PP +The \fB-m MSR#\fP option includes the the specified 32-bit MSR value. +.PP +The \fB-M MSR#\fP option includes the the specified 64-bit MSR value. .PP The \fB-i interval_sec\fP option prints statistics every \fiinterval_sec\fP seconds. The default is 5 seconds. @@ -65,19 +72,19 @@ Subsequent rows show per-CPU statistics. .nf [root@x980]# ./turbostat cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6 - 0.60 1.63 3.38 2.91 0.00 96.49 0.00 76.64 - 0 0 0.59 1.62 3.38 4.51 0.00 94.90 0.00 76.64 - 0 6 1.13 1.64 3.38 3.97 0.00 94.90 0.00 76.64 - 1 2 0.08 1.62 3.38 0.07 0.00 99.85 0.00 76.64 - 1 8 0.03 1.62 3.38 0.12 0.00 99.85 0.00 76.64 - 2 4 0.01 1.62 3.38 0.06 0.00 99.93 0.00 76.64 - 2 10 0.04 1.62 3.38 0.02 0.00 99.93 0.00 76.64 - 8 1 2.85 1.62 3.38 11.71 0.00 85.44 0.00 76.64 - 8 7 1.98 1.62 3.38 12.58 0.00 85.44 0.00 76.64 - 9 3 0.36 1.62 3.38 0.71 0.00 98.93 0.00 76.64 - 9 9 0.09 1.62 3.38 0.98 0.00 98.93 0.00 76.64 - 10 5 0.03 1.62 3.38 0.09 0.00 99.87 0.00 76.64 - 10 11 0.07 1.62 3.38 0.06 0.00 99.87 0.00 76.64 + 0.09 1.62 3.38 1.83 0.32 97.76 1.26 83.61 + 0 0 0.15 1.62 3.38 10.23 0.05 89.56 1.26 83.61 + 0 6 0.05 1.62 3.38 10.34 + 1 2 0.03 1.62 3.38 0.07 0.05 99.86 + 1 8 0.03 1.62 3.38 0.06 + 2 4 0.21 1.62 3.38 0.10 1.49 98.21 + 2 10 0.02 1.62 3.38 0.29 + 8 1 0.04 1.62 3.38 0.04 0.08 99.84 + 8 7 0.01 1.62 3.38 0.06 + 9 3 0.53 1.62 3.38 0.10 0.20 99.17 + 9 9 0.02 1.62 3.38 0.60 + 10 5 0.01 1.62 3.38 0.02 0.04 99.92 + 10 11 0.02 1.62 3.38 0.02 .fi .SH SUMMARY EXAMPLE The "-s" option prints the column headers just once, @@ -86,9 +93,10 @@ and then the one line system summary for each sample interval. .nf [root@x980]# ./turbostat -s %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6 - 0.61 1.89 3.38 5.95 0.00 93.44 0.00 66.33 - 0.52 1.62 3.38 6.83 0.00 92.65 0.00 61.11 - 0.62 1.92 3.38 5.47 0.00 93.91 0.00 67.31 + 0.23 1.67 3.38 2.00 0.30 97.47 1.07 82.12 + 0.10 1.62 3.38 1.87 2.25 95.77 12.02 72.60 + 0.20 1.64 3.38 1.98 0.11 97.72 0.30 83.36 + 0.11 1.70 3.38 1.86 1.81 96.22 9.71 74.90 .fi .SH VERBOSE EXAMPLE The "-v" option adds verbosity to the output: @@ -120,33 +128,54 @@ until ^C while the other CPUs are mostly idle: [root@x980 lenb]# ./turbostat cat /dev/zero > /dev/null ^C cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6 - 8.63 3.64 3.38 14.46 0.49 76.42 0.00 0.00 - 0 0 0.34 3.36 3.38 99.66 0.00 0.00 0.00 0.00 - 0 6 99.96 3.64 3.38 0.04 0.00 0.00 0.00 0.00 - 1 2 0.14 3.50 3.38 1.75 2.04 96.07 0.00 0.00 - 1 8 0.38 3.57 3.38 1.51 2.04 96.07 0.00 0.00 - 2 4 0.01 2.65 3.38 0.06 0.00 99.93 0.00 0.00 - 2 10 0.03 2.12 3.38 0.04 0.00 99.93 0.00 0.00 - 8 1 0.91 3.59 3.38 35.27 0.92 62.90 0.00 0.00 - 8 7 1.61 3.63 3.38 34.57 0.92 62.90 0.00 0.00 - 9 3 0.04 3.38 3.38 0.20 0.00 99.76 0.00 0.00 - 9 9 0.04 3.29 3.38 0.20 0.00 99.76 0.00 0.00 - 10 5 0.03 3.08 3.38 0.12 0.00 99.85 0.00 0.00 - 10 11 0.05 3.07 3.38 0.10 0.00 99.85 0.00 0.00 -4.907015 sec - + 8.86 3.61 3.38 15.06 31.19 44.89 0.00 0.00 + 0 0 1.46 3.22 3.38 16.84 29.48 52.22 0.00 0.00 + 0 6 0.21 3.06 3.38 18.09 + 1 2 0.53 3.33 3.38 2.80 46.40 50.27 + 1 8 0.89 3.47 3.38 2.44 + 2 4 1.36 3.43 3.38 9.04 23.71 65.89 + 2 10 0.18 2.86 3.38 10.22 + 8 1 0.04 2.87 3.38 99.96 0.01 0.00 + 8 7 99.72 3.63 3.38 0.27 + 9 3 0.31 3.21 3.38 7.64 56.55 35.50 + 9 9 0.08 2.95 3.38 7.88 + 10 5 1.42 3.43 3.38 2.14 30.99 65.44 + 10 11 0.16 2.88 3.38 3.40 .fi -Above the cycle soaker drives cpu6 up 3.6 Ghz turbo limit +Above the cycle soaker drives cpu7 up its 3.6 Ghz turbo limit while the other processors are generally in various states of idle. -Note that cpu0 is an HT sibling sharing core0 -with cpu6, and thus it is unable to get to an idle state -deeper than c1 while cpu6 is busy. +Note that cpu1 and cpu7 are HT siblings within core8. +As cpu7 is very busy, it prevents its sibling, cpu1, +from entering a c-state deeper than c1. -Note that turbostat reports average GHz of 3.64, while +Note that turbostat reports average GHz of 3.63, while the arithmetic average of the GHz column above is lower. This is a weighted average, where the weight is %c0. ie. it is the total number of un-halted cycles elapsed per time divided by the number of CPUs. +.SH SMI COUNTING EXAMPLE +On Intel Nehalem and newer processors, MSR 0x34 is a System Management Mode Interrupt (SMI) counter. +Using the -m option, you can display how many SMIs have fired since reset, or if there +are SMIs during the measurement interval, you can display the delta using the -d option. +.nf +[root@x980 ~]# turbostat -m 0x34 +cor CPU %c0 GHz TSC MSR 0x034 %c1 %c3 %c6 %pc3 %pc6 + 1.41 1.82 3.38 0x00000000 8.92 37.82 51.85 17.37 0.55 + 0 0 3.73 2.03 3.38 0x00000055 1.72 48.25 46.31 17.38 0.55 + 0 6 0.14 1.63 3.38 0x00000056 5.30 + 1 2 2.51 1.80 3.38 0x00000056 15.65 29.33 52.52 + 1 8 0.10 1.65 3.38 0x00000056 18.05 + 2 4 1.16 1.68 3.38 0x00000056 5.87 24.47 68.50 + 2 10 0.10 1.63 3.38 0x00000056 6.93 + 8 1 3.84 1.91 3.38 0x00000056 1.36 50.65 44.16 + 8 7 0.08 1.64 3.38 0x00000056 5.12 + 9 3 1.82 1.73 3.38 0x00000056 7.59 24.21 66.38 + 9 9 0.09 1.68 3.38 0x00000056 9.32 + 10 5 1.66 1.65 3.38 0x00000056 15.10 50.00 33.23 + 10 11 1.72 1.65 3.38 0x00000056 15.05 +^C +[root@x980 ~]# +.fi .SH NOTES .B "turbostat " @@ -162,6 +191,13 @@ may work poorly on Linux-2.6.20 through 2.6.29, as \fBacpi-cpufreq \fPperiodically cleared the APERF and MPERF in those kernels. +If the TSC column does not make sense, then +the other numbers will also make no sense. +Turbostat is lightweight, and its data collection is not atomic. +These issues are usually caused by an extremely short measurement +interval (much less than 1 second), or system activity that prevents +turbostat from being able to run on all CPUS to quickly collect data. + The APERF, MPERF MSRs are defined to count non-halted cycles. Although it is not guaranteed by the architecture, turbostat assumes that they count at TSC rate, which is true on all processors tested to date. diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 16de7ad4850..2655ae9a3ad 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -35,9 +35,9 @@ #include <ctype.h> #include <sched.h> -#define MSR_TSC 0x10 #define MSR_NEHALEM_PLATFORM_INFO 0xCE #define MSR_NEHALEM_TURBO_RATIO_LIMIT 0x1AD +#define MSR_IVT_TURBO_RATIO_LIMIT 0x1AE #define MSR_APERF 0xE8 #define MSR_MPERF 0xE7 #define MSR_PKG_C2_RESIDENCY 0x60D /* SNB only */ @@ -62,97 +62,131 @@ unsigned int genuine_intel; unsigned int has_invariant_tsc; unsigned int do_nehalem_platform_info; unsigned int do_nehalem_turbo_ratio_limit; -unsigned int extra_msr_offset; +unsigned int do_ivt_turbo_ratio_limit; +unsigned int extra_msr_offset32; +unsigned int extra_msr_offset64; +unsigned int extra_delta_offset32; +unsigned int extra_delta_offset64; double bclk; unsigned int show_pkg; unsigned int show_core; unsigned int show_cpu; +unsigned int show_pkg_only; +unsigned int show_core_only; +char *output_buffer, *outp; int aperf_mperf_unstable; int backwards_count; char *progname; -int num_cpus; -cpu_set_t *cpu_present_set, *cpu_mask; -size_t cpu_present_setsize, cpu_mask_size; - -struct counters { - unsigned long long tsc; /* per thread */ - unsigned long long aperf; /* per thread */ - unsigned long long mperf; /* per thread */ - unsigned long long c1; /* per thread (calculated) */ - unsigned long long c3; /* per core */ - unsigned long long c6; /* per core */ - unsigned long long c7; /* per core */ - unsigned long long pc2; /* per package */ - unsigned long long pc3; /* per package */ - unsigned long long pc6; /* per package */ - unsigned long long pc7; /* per package */ - unsigned long long extra_msr; /* per thread */ - int pkg; - int core; - int cpu; - struct counters *next; -}; - -struct counters *cnt_even; -struct counters *cnt_odd; -struct counters *cnt_delta; -struct counters *cnt_average; -struct timeval tv_even; -struct timeval tv_odd; -struct timeval tv_delta; - -int mark_cpu_present(int pkg, int core, int cpu) +cpu_set_t *cpu_present_set, *cpu_affinity_set; +size_t cpu_present_setsize, cpu_affinity_setsize; + +struct thread_data { + unsigned long long tsc; + unsigned long long aperf; + unsigned long long mperf; + unsigned long long c1; /* derived */ + unsigned long long extra_msr64; + unsigned long long extra_delta64; + unsigned long long extra_msr32; + unsigned long long extra_delta32; + unsigned int cpu_id; + unsigned int flags; +#define CPU_IS_FIRST_THREAD_IN_CORE 0x2 +#define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 +} *thread_even, *thread_odd; + +struct core_data { + unsigned long long c3; + unsigned long long c6; + unsigned long long c7; + unsigned int core_id; +} *core_even, *core_odd; + +struct pkg_data { + unsigned long long pc2; + unsigned long long pc3; + unsigned long long pc6; + unsigned long long pc7; + unsigned int package_id; +} *package_even, *package_odd; + +#define ODD_COUNTERS thread_odd, core_odd, package_odd +#define EVEN_COUNTERS thread_even, core_even, package_even + +#define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ + (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ + topo.num_threads_per_core + \ + (core_no) * topo.num_threads_per_core + (thread_no)) +#define GET_CORE(core_base, core_no, pkg_no) \ + (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) +#define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) + +struct system_summary { + struct thread_data threads; + struct core_data cores; + struct pkg_data packages; +} sum, average; + + +struct topo_params { + int num_packages; + int num_cpus; + int num_cores; + int max_cpu_num; + int num_cores_per_pkg; + int num_threads_per_core; +} topo; + +struct timeval tv_even, tv_odd, tv_delta; + +void setup_all_buffers(void); + +int cpu_is_not_present(int cpu) { - CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); - return 0; + return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); } - /* - * cpu_mask_init(ncpus) - * - * allocate and clear cpu_mask - * set cpu_mask_size + * run func(thread, core, package) in topology order + * skip non-present cpus */ -void cpu_mask_init(int ncpus) + +int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), + struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) { - cpu_mask = CPU_ALLOC(ncpus); - if (cpu_mask == NULL) { - perror("CPU_ALLOC"); - exit(3); - } - cpu_mask_size = CPU_ALLOC_SIZE(ncpus); - CPU_ZERO_S(cpu_mask_size, cpu_mask); + int retval, pkg_no, core_no, thread_no; - /* - * Allocate and initialize cpu_present_set - */ - cpu_present_set = CPU_ALLOC(ncpus); - if (cpu_present_set == NULL) { - perror("CPU_ALLOC"); - exit(3); - } - cpu_present_setsize = CPU_ALLOC_SIZE(ncpus); - CPU_ZERO_S(cpu_present_setsize, cpu_present_set); - for_all_cpus(mark_cpu_present); -} + for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { + for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { + for (thread_no = 0; thread_no < + topo.num_threads_per_core; ++thread_no) { + struct thread_data *t; + struct core_data *c; + struct pkg_data *p; -void cpu_mask_uninit() -{ - CPU_FREE(cpu_mask); - cpu_mask = NULL; - cpu_mask_size = 0; - CPU_FREE(cpu_present_set); - cpu_present_set = NULL; - cpu_present_setsize = 0; + t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); + + if (cpu_is_not_present(t->cpu_id)) + continue; + + c = GET_CORE(core_base, core_no, pkg_no); + p = GET_PKG(pkg_base, pkg_no); + + retval = func(t, c, p); + if (retval) + return retval; + } + } + } + return 0; } int cpu_migrate(int cpu) { - CPU_ZERO_S(cpu_mask_size, cpu_mask); - CPU_SET_S(cpu, cpu_mask_size, cpu_mask); - if (sched_setaffinity(0, cpu_mask_size, cpu_mask) == -1) + CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); + CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); + if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) return -1; else return 0; @@ -181,67 +215,84 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr) void print_header(void) { if (show_pkg) - fprintf(stderr, "pk"); + outp += sprintf(outp, "pk"); if (show_pkg) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (show_core) - fprintf(stderr, "cor"); + outp += sprintf(outp, "cor"); if (show_cpu) - fprintf(stderr, " CPU"); + outp += sprintf(outp, " CPU"); if (show_pkg || show_core || show_cpu) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (do_nhm_cstates) - fprintf(stderr, " %%c0"); + outp += sprintf(outp, " %%c0"); if (has_aperf) - fprintf(stderr, " GHz"); - fprintf(stderr, " TSC"); + outp += sprintf(outp, " GHz"); + outp += sprintf(outp, " TSC"); + if (extra_delta_offset32) + outp += sprintf(outp, " count 0x%03X", extra_delta_offset32); + if (extra_delta_offset64) + outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64); + if (extra_msr_offset32) + outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32); + if (extra_msr_offset64) + outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64); if (do_nhm_cstates) - fprintf(stderr, " %%c1"); + outp += sprintf(outp, " %%c1"); if (do_nhm_cstates) - fprintf(stderr, " %%c3"); + outp += sprintf(outp, " %%c3"); if (do_nhm_cstates) - fprintf(stderr, " %%c6"); + outp += sprintf(outp, " %%c6"); if (do_snb_cstates) - fprintf(stderr, " %%c7"); + outp += sprintf(outp, " %%c7"); if (do_snb_cstates) - fprintf(stderr, " %%pc2"); + outp += sprintf(outp, " %%pc2"); if (do_nhm_cstates) - fprintf(stderr, " %%pc3"); + outp += sprintf(outp, " %%pc3"); if (do_nhm_cstates) - fprintf(stderr, " %%pc6"); + outp += sprintf(outp, " %%pc6"); if (do_snb_cstates) - fprintf(stderr, " %%pc7"); - if (extra_msr_offset) - fprintf(stderr, " MSR 0x%x ", extra_msr_offset); + outp += sprintf(outp, " %%pc7"); - putc('\n', stderr); + outp += sprintf(outp, "\n"); } -void dump_cnt(struct counters *cnt) +int dump_counters(struct thread_data *t, struct core_data *c, + struct pkg_data *p) { - if (!cnt) - return; - if (cnt->pkg) fprintf(stderr, "package: %d ", cnt->pkg); - if (cnt->core) fprintf(stderr, "core:: %d ", cnt->core); - if (cnt->cpu) fprintf(stderr, "CPU: %d ", cnt->cpu); - if (cnt->tsc) fprintf(stderr, "TSC: %016llX\n", cnt->tsc); - if (cnt->c3) fprintf(stderr, "c3: %016llX\n", cnt->c3); - if (cnt->c6) fprintf(stderr, "c6: %016llX\n", cnt->c6); - if (cnt->c7) fprintf(stderr, "c7: %016llX\n", cnt->c7); - if (cnt->aperf) fprintf(stderr, "aperf: %016llX\n", cnt->aperf); - if (cnt->pc2) fprintf(stderr, "pc2: %016llX\n", cnt->pc2); - if (cnt->pc3) fprintf(stderr, "pc3: %016llX\n", cnt->pc3); - if (cnt->pc6) fprintf(stderr, "pc6: %016llX\n", cnt->pc6); - if (cnt->pc7) fprintf(stderr, "pc7: %016llX\n", cnt->pc7); - if (cnt->extra_msr) fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, cnt->extra_msr); -} + fprintf(stderr, "t %p, c %p, p %p\n", t, c, p); + + if (t) { + fprintf(stderr, "CPU: %d flags 0x%x\n", t->cpu_id, t->flags); + fprintf(stderr, "TSC: %016llX\n", t->tsc); + fprintf(stderr, "aperf: %016llX\n", t->aperf); + fprintf(stderr, "mperf: %016llX\n", t->mperf); + fprintf(stderr, "c1: %016llX\n", t->c1); + fprintf(stderr, "msr0x%x: %08llX\n", + extra_delta_offset32, t->extra_delta32); + fprintf(stderr, "msr0x%x: %016llX\n", + extra_delta_offset64, t->extra_delta64); + fprintf(stderr, "msr0x%x: %08llX\n", + extra_msr_offset32, t->extra_msr32); + fprintf(stderr, "msr0x%x: %016llX\n", + extra_msr_offset64, t->extra_msr64); + } -void dump_list(struct counters *cnt) -{ - printf("dump_list 0x%p\n", cnt); + if (c) { + fprintf(stderr, "core: %d\n", c->core_id); + fprintf(stderr, "c3: %016llX\n", c->c3); + fprintf(stderr, "c6: %016llX\n", c->c6); + fprintf(stderr, "c7: %016llX\n", c->c7); + } - for (; cnt; cnt = cnt->next) - dump_cnt(cnt); + if (p) { + fprintf(stderr, "package: %d\n", p->package_id); + fprintf(stderr, "pc2: %016llX\n", p->pc2); + fprintf(stderr, "pc3: %016llX\n", p->pc3); + fprintf(stderr, "pc6: %016llX\n", p->pc6); + fprintf(stderr, "pc7: %016llX\n", p->pc7); + } + return 0; } /* @@ -253,321 +304,435 @@ void dump_list(struct counters *cnt) * TSC: "TSC" 3 columns %3.2 * percentage " %pc3" %6.2 */ -void print_cnt(struct counters *p) +int format_counters(struct thread_data *t, struct core_data *c, + struct pkg_data *p) { double interval_float; + /* if showing only 1st thread in core and this isn't one, bail out */ + if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) + return 0; + + /* if showing only 1st thread in pkg and this isn't one, bail out */ + if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) + return 0; + interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; - /* topology columns, print blanks on 1st (average) line */ - if (p == cnt_average) { + /* topo columns, print blanks on 1st (average) line */ + if (t == &average.threads) { if (show_pkg) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (show_pkg && show_core) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (show_core) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (show_cpu) - fprintf(stderr, " " " "); + outp += sprintf(outp, " " " "); } else { - if (show_pkg) - fprintf(stderr, "%2d", p->pkg); + if (show_pkg) { + if (p) + outp += sprintf(outp, "%2d", p->package_id); + else + outp += sprintf(outp, " "); + } if (show_pkg && show_core) - fprintf(stderr, " "); - if (show_core) - fprintf(stderr, "%3d", p->core); + outp += sprintf(outp, " "); + if (show_core) { + if (c) + outp += sprintf(outp, "%3d", c->core_id); + else + outp += sprintf(outp, " "); + } if (show_cpu) - fprintf(stderr, " %3d", p->cpu); + outp += sprintf(outp, " %3d", t->cpu_id); } /* %c0 */ if (do_nhm_cstates) { if (show_pkg || show_core || show_cpu) - fprintf(stderr, " "); + outp += sprintf(outp, " "); if (!skip_c0) - fprintf(stderr, "%6.2f", 100.0 * p->mperf/p->tsc); + outp += sprintf(outp, "%6.2f", 100.0 * t->mperf/t->tsc); else - fprintf(stderr, " ****"); + outp += sprintf(outp, " ****"); } /* GHz */ if (has_aperf) { if (!aperf_mperf_unstable) { - fprintf(stderr, " %3.2f", - 1.0 * p->tsc / units * p->aperf / - p->mperf / interval_float); + outp += sprintf(outp, " %3.2f", + 1.0 * t->tsc / units * t->aperf / + t->mperf / interval_float); } else { - if (p->aperf > p->tsc || p->mperf > p->tsc) { - fprintf(stderr, " ***"); + if (t->aperf > t->tsc || t->mperf > t->tsc) { + outp += sprintf(outp, " ***"); } else { - fprintf(stderr, "%3.1f*", - 1.0 * p->tsc / - units * p->aperf / - p->mperf / interval_float); + outp += sprintf(outp, "%3.1f*", + 1.0 * t->tsc / + units * t->aperf / + t->mperf / interval_float); } } } /* TSC */ - fprintf(stderr, "%5.2f", 1.0 * p->tsc/units/interval_float); + outp += sprintf(outp, "%5.2f", 1.0 * t->tsc/units/interval_float); + + /* delta */ + if (extra_delta_offset32) + outp += sprintf(outp, " %11llu", t->extra_delta32); + + /* DELTA */ + if (extra_delta_offset64) + outp += sprintf(outp, " %11llu", t->extra_delta64); + /* msr */ + if (extra_msr_offset32) + outp += sprintf(outp, " 0x%08llx", t->extra_msr32); + + /* MSR */ + if (extra_msr_offset64) + outp += sprintf(outp, " 0x%016llx", t->extra_msr64); if (do_nhm_cstates) { if (!skip_c1) - fprintf(stderr, " %6.2f", 100.0 * p->c1/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * t->c1/t->tsc); else - fprintf(stderr, " ****"); + outp += sprintf(outp, " ****"); } + + /* print per-core data only for 1st thread in core */ + if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) + goto done; + if (do_nhm_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->c3/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * c->c3/t->tsc); if (do_nhm_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->c6/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * c->c6/t->tsc); if (do_snb_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->c7/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * c->c7/t->tsc); + + /* print per-package data only for 1st core in package */ + if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) + goto done; + if (do_snb_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->pc2/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * p->pc2/t->tsc); if (do_nhm_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->pc3/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * p->pc3/t->tsc); if (do_nhm_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->pc6/p->tsc); + outp += sprintf(outp, " %6.2f", 100.0 * p->pc6/t->tsc); if (do_snb_cstates) - fprintf(stderr, " %6.2f", 100.0 * p->pc7/p->tsc); - if (extra_msr_offset) - fprintf(stderr, " 0x%016llx", p->extra_msr); - putc('\n', stderr); + outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc); +done: + outp += sprintf(outp, "\n"); + + return 0; } -void print_counters(struct counters *counters) +void flush_stdout() +{ + fputs(output_buffer, stdout); + outp = output_buffer; +} +void flush_stderr() +{ + fputs(output_buffer, stderr); + outp = output_buffer; +} +void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { - struct counters *cnt; static int printed; - if (!printed || !summary_only) print_header(); - if (num_cpus > 1) - print_cnt(cnt_average); + if (topo.num_cpus > 1) + format_counters(&average.threads, &average.cores, + &average.packages); printed = 1; if (summary_only) return; - for (cnt = counters; cnt != NULL; cnt = cnt->next) - print_cnt(cnt); - + for_all_cpus(format_counters, t, c, p); } -#define SUBTRACT_COUNTER(after, before, delta) (delta = (after - before), (before > after)) +void +delta_package(struct pkg_data *new, struct pkg_data *old) +{ + old->pc2 = new->pc2 - old->pc2; + old->pc3 = new->pc3 - old->pc3; + old->pc6 = new->pc6 - old->pc6; + old->pc7 = new->pc7 - old->pc7; +} -int compute_delta(struct counters *after, - struct counters *before, struct counters *delta) +void +delta_core(struct core_data *new, struct core_data *old) { - int errors = 0; - int perf_err = 0; + old->c3 = new->c3 - old->c3; + old->c6 = new->c6 - old->c6; + old->c7 = new->c7 - old->c7; +} - skip_c0 = skip_c1 = 0; +/* + * old = new - old + */ +void +delta_thread(struct thread_data *new, struct thread_data *old, + struct core_data *core_delta) +{ + old->tsc = new->tsc - old->tsc; + + /* check for TSC < 1 Mcycles over interval */ + if (old->tsc < (1000 * 1000)) { + fprintf(stderr, "Insanely slow TSC rate, TSC stops in idle?\n"); + fprintf(stderr, "You can disable all c-states by booting with \"idle=poll\"\n"); + fprintf(stderr, "or just the deep ones with \"processor.max_cstate=1\"\n"); + exit(-3); + } - for ( ; after && before && delta; - after = after->next, before = before->next, delta = delta->next) { - if (before->cpu != after->cpu) { - printf("cpu configuration changed: %d != %d\n", - before->cpu, after->cpu); - return -1; - } + old->c1 = new->c1 - old->c1; - if (SUBTRACT_COUNTER(after->tsc, before->tsc, delta->tsc)) { - fprintf(stderr, "cpu%d TSC went backwards %llX to %llX\n", - before->cpu, before->tsc, after->tsc); - errors++; - } - /* check for TSC < 1 Mcycles over interval */ - if (delta->tsc < (1000 * 1000)) { - fprintf(stderr, "Insanely slow TSC rate," - " TSC stops in idle?\n"); - fprintf(stderr, "You can disable all c-states" - " by booting with \"idle=poll\"\n"); - fprintf(stderr, "or just the deep ones with" - " \"processor.max_cstate=1\"\n"); - exit(-3); - } - if (SUBTRACT_COUNTER(after->c3, before->c3, delta->c3)) { - fprintf(stderr, "cpu%d c3 counter went backwards %llX to %llX\n", - before->cpu, before->c3, after->c3); - errors++; - } - if (SUBTRACT_COUNTER(after->c6, before->c6, delta->c6)) { - fprintf(stderr, "cpu%d c6 counter went backwards %llX to %llX\n", - before->cpu, before->c6, after->c6); - errors++; - } - if (SUBTRACT_COUNTER(after->c7, before->c7, delta->c7)) { - fprintf(stderr, "cpu%d c7 counter went backwards %llX to %llX\n", - before->cpu, before->c7, after->c7); - errors++; - } - if (SUBTRACT_COUNTER(after->pc2, before->pc2, delta->pc2)) { - fprintf(stderr, "cpu%d pc2 counter went backwards %llX to %llX\n", - before->cpu, before->pc2, after->pc2); - errors++; - } - if (SUBTRACT_COUNTER(after->pc3, before->pc3, delta->pc3)) { - fprintf(stderr, "cpu%d pc3 counter went backwards %llX to %llX\n", - before->cpu, before->pc3, after->pc3); - errors++; - } - if (SUBTRACT_COUNTER(after->pc6, before->pc6, delta->pc6)) { - fprintf(stderr, "cpu%d pc6 counter went backwards %llX to %llX\n", - before->cpu, before->pc6, after->pc6); - errors++; - } - if (SUBTRACT_COUNTER(after->pc7, before->pc7, delta->pc7)) { - fprintf(stderr, "cpu%d pc7 counter went backwards %llX to %llX\n", - before->cpu, before->pc7, after->pc7); - errors++; - } + if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { + old->aperf = new->aperf - old->aperf; + old->mperf = new->mperf - old->mperf; + } else { - perf_err = SUBTRACT_COUNTER(after->aperf, before->aperf, delta->aperf); - if (perf_err) { - fprintf(stderr, "cpu%d aperf counter went backwards %llX to %llX\n", - before->cpu, before->aperf, after->aperf); - } - perf_err |= SUBTRACT_COUNTER(after->mperf, before->mperf, delta->mperf); - if (perf_err) { - fprintf(stderr, "cpu%d mperf counter went backwards %llX to %llX\n", - before->cpu, before->mperf, after->mperf); - } - if (perf_err) { - if (!aperf_mperf_unstable) { - fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); - fprintf(stderr, "* Frequency results do not cover entire interval *\n"); - fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); + if (!aperf_mperf_unstable) { + fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); + fprintf(stderr, "* Frequency results do not cover entire interval *\n"); + fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); - aperf_mperf_unstable = 1; - } - /* - * mperf delta is likely a huge "positive" number - * can not use it for calculating c0 time - */ - skip_c0 = 1; - skip_c1 = 1; + aperf_mperf_unstable = 1; } - /* - * As mperf and tsc collection are not atomic, - * it is possible for mperf's non-halted cycles - * to exceed TSC's all cycles: show c1 = 0% in that case. + * mperf delta is likely a huge "positive" number + * can not use it for calculating c0 time */ - if (delta->mperf > delta->tsc) - delta->c1 = 0; - else /* normal case, derive c1 */ - delta->c1 = delta->tsc - delta->mperf - - delta->c3 - delta->c6 - delta->c7; + skip_c0 = 1; + skip_c1 = 1; + } - if (delta->mperf == 0) - delta->mperf = 1; /* divide by 0 protection */ - /* - * for "extra msr", just copy the latest w/o subtracting - */ - delta->extra_msr = after->extra_msr; - if (errors) { - fprintf(stderr, "ERROR cpu%d before:\n", before->cpu); - dump_cnt(before); - fprintf(stderr, "ERROR cpu%d after:\n", before->cpu); - dump_cnt(after); - errors = 0; - } + /* + * As counter collection is not atomic, + * it is possible for mperf's non-halted cycles + idle states + * to exceed TSC's all cycles: show c1 = 0% in that case. + */ + if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) + old->c1 = 0; + else { + /* normal case, derive c1 */ + old->c1 = old->tsc - old->mperf - core_delta->c3 + - core_delta->c6 - core_delta->c7; } + + if (old->mperf == 0) { + if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); + old->mperf = 1; /* divide by 0 protection */ + } + + old->extra_delta32 = new->extra_delta32 - old->extra_delta32; + old->extra_delta32 &= 0xFFFFFFFF; + + old->extra_delta64 = new->extra_delta64 - old->extra_delta64; + + /* + * Extra MSR is just a snapshot, simply copy latest w/o subtracting + */ + old->extra_msr32 = new->extra_msr32; + old->extra_msr64 = new->extra_msr64; +} + +int delta_cpu(struct thread_data *t, struct core_data *c, + struct pkg_data *p, struct thread_data *t2, + struct core_data *c2, struct pkg_data *p2) +{ + /* calculate core delta only for 1st thread in core */ + if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) + delta_core(c, c2); + + /* always calculate thread delta */ + delta_thread(t, t2, c2); /* c2 is core delta */ + + /* calculate package delta only for 1st core in package */ + if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) + delta_package(p, p2); + return 0; } -void compute_average(struct counters *delta, struct counters *avg) +void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { - struct counters *sum; + t->tsc = 0; + t->aperf = 0; + t->mperf = 0; + t->c1 = 0; - sum = calloc(1, sizeof(struct counters)); - if (sum == NULL) { - perror("calloc sum"); - exit(1); - } + t->extra_delta32 = 0; + t->extra_delta64 = 0; - for (; delta; delta = delta->next) { - sum->tsc += delta->tsc; - sum->c1 += delta->c1; - sum->c3 += delta->c3; - sum->c6 += delta->c6; - sum->c7 += delta->c7; - sum->aperf += delta->aperf; - sum->mperf += delta->mperf; - sum->pc2 += delta->pc2; - sum->pc3 += delta->pc3; - sum->pc6 += delta->pc6; - sum->pc7 += delta->pc7; - } - avg->tsc = sum->tsc/num_cpus; - avg->c1 = sum->c1/num_cpus; - avg->c3 = sum->c3/num_cpus; - avg->c6 = sum->c6/num_cpus; - avg->c7 = sum->c7/num_cpus; - avg->aperf = sum->aperf/num_cpus; - avg->mperf = sum->mperf/num_cpus; - avg->pc2 = sum->pc2/num_cpus; - avg->pc3 = sum->pc3/num_cpus; - avg->pc6 = sum->pc6/num_cpus; - avg->pc7 = sum->pc7/num_cpus; - - free(sum); + /* tells format_counters to dump all fields from this set */ + t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; + + c->c3 = 0; + c->c6 = 0; + c->c7 = 0; + + p->pc2 = 0; + p->pc3 = 0; + p->pc6 = 0; + p->pc7 = 0; } +int sum_counters(struct thread_data *t, struct core_data *c, + struct pkg_data *p) +{ + average.threads.tsc += t->tsc; + average.threads.aperf += t->aperf; + average.threads.mperf += t->mperf; + average.threads.c1 += t->c1; + + average.threads.extra_delta32 += t->extra_delta32; + average.threads.extra_delta64 += t->extra_delta64; + + /* sum per-core values only for 1st thread in core */ + if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) + return 0; + + average.cores.c3 += c->c3; + average.cores.c6 += c->c6; + average.cores.c7 += c->c7; -int get_counters(struct counters *cnt) + /* sum per-pkg values only for 1st core in pkg */ + if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) + return 0; + + average.packages.pc2 += p->pc2; + average.packages.pc3 += p->pc3; + average.packages.pc6 += p->pc6; + average.packages.pc7 += p->pc7; + + return 0; +} +/* + * sum the counters for all cpus in the system + * compute the weighted average + */ +void compute_average(struct thread_data *t, struct core_data *c, + struct pkg_data *p) { - for ( ; cnt; cnt = cnt->next) { + clear_counters(&average.threads, &average.cores, &average.packages); - if (cpu_migrate(cnt->cpu)) - return -1; + for_all_cpus(sum_counters, t, c, p); - if (get_msr(cnt->cpu, MSR_TSC, &cnt->tsc)) - return -1; + average.threads.tsc /= topo.num_cpus; + average.threads.aperf /= topo.num_cpus; + average.threads.mperf /= topo.num_cpus; + average.threads.c1 /= topo.num_cpus; - if (has_aperf) { - if (get_msr(cnt->cpu, MSR_APERF, &cnt->aperf)) - return -1; - if (get_msr(cnt->cpu, MSR_MPERF, &cnt->mperf)) - return -1; - } + average.threads.extra_delta32 /= topo.num_cpus; + average.threads.extra_delta32 &= 0xFFFFFFFF; - if (do_nhm_cstates) { - if (get_msr(cnt->cpu, MSR_CORE_C3_RESIDENCY, &cnt->c3)) - return -1; - if (get_msr(cnt->cpu, MSR_CORE_C6_RESIDENCY, &cnt->c6)) - return -1; - } + average.threads.extra_delta64 /= topo.num_cpus; - if (do_snb_cstates) - if (get_msr(cnt->cpu, MSR_CORE_C7_RESIDENCY, &cnt->c7)) - return -1; + average.cores.c3 /= topo.num_cores; + average.cores.c6 /= topo.num_cores; + average.cores.c7 /= topo.num_cores; - if (do_nhm_cstates) { - if (get_msr(cnt->cpu, MSR_PKG_C3_RESIDENCY, &cnt->pc3)) - return -1; - if (get_msr(cnt->cpu, MSR_PKG_C6_RESIDENCY, &cnt->pc6)) - return -1; - } - if (do_snb_cstates) { - if (get_msr(cnt->cpu, MSR_PKG_C2_RESIDENCY, &cnt->pc2)) - return -1; - if (get_msr(cnt->cpu, MSR_PKG_C7_RESIDENCY, &cnt->pc7)) - return -1; - } - if (extra_msr_offset) - if (get_msr(cnt->cpu, extra_msr_offset, &cnt->extra_msr)) - return -1; + average.packages.pc2 /= topo.num_packages; + average.packages.pc3 /= topo.num_packages; + average.packages.pc6 /= topo.num_packages; + average.packages.pc7 /= topo.num_packages; +} + +static unsigned long long rdtsc(void) +{ + unsigned int low, high; + + asm volatile("rdtsc" : "=a" (low), "=d" (high)); + + return low | ((unsigned long long)high) << 32; +} + + +/* + * get_counters(...) + * migrate to cpu + * acquire and record local counters for that cpu + */ +int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) +{ + int cpu = t->cpu_id; + + if (cpu_migrate(cpu)) + return -1; + + t->tsc = rdtsc(); /* we are running on local CPU of interest */ + + if (has_aperf) { + if (get_msr(cpu, MSR_APERF, &t->aperf)) + return -3; + if (get_msr(cpu, MSR_MPERF, &t->mperf)) + return -4; + } + + if (extra_delta_offset32) { + if (get_msr(cpu, extra_delta_offset32, &t->extra_delta32)) + return -5; + t->extra_delta32 &= 0xFFFFFFFF; + } + + if (extra_delta_offset64) + if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) + return -5; + + if (extra_msr_offset32) { + if (get_msr(cpu, extra_msr_offset32, &t->extra_msr32)) + return -5; + t->extra_msr32 &= 0xFFFFFFFF; + } + + if (extra_msr_offset64) + if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) + return -5; + + /* collect core counters only for 1st thread in core */ + if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) + return 0; + + if (do_nhm_cstates) { + if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) + return -6; + if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) + return -7; + } + + if (do_snb_cstates) + if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) + return -8; + + /* collect package counters only for 1st core in package */ + if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) + return 0; + + if (do_nhm_cstates) { + if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) + return -9; + if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) + return -10; + } + if (do_snb_cstates) { + if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) + return -11; + if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) + return -12; } return 0; } -void print_nehalem_info(void) +void print_verbose_header(void) { unsigned long long msr; unsigned int ratio; @@ -577,6 +742,9 @@ void print_nehalem_info(void) get_msr(0, MSR_NEHALEM_PLATFORM_INFO, &msr); + if (verbose > 1) + fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr); + ratio = (msr >> 40) & 0xFF; fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", ratio, bclk, ratio * bclk); @@ -585,173 +753,181 @@ void print_nehalem_info(void) fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", ratio, bclk, ratio * bclk); + if (!do_ivt_turbo_ratio_limit) + goto print_nhm_turbo_ratio_limits; + + get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); + if (verbose > 1) - fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr); + fprintf(stderr, "MSR_IVT_TURBO_RATIO_LIMIT: 0x%llx\n", msr); - if (!do_nehalem_turbo_ratio_limit) - return; + ratio = (msr >> 56) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", + ratio, bclk, ratio * bclk); - get_msr(0, MSR_NEHALEM_TURBO_RATIO_LIMIT, &msr); + ratio = (msr >> 48) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", + ratio, bclk, ratio * bclk); + + ratio = (msr >> 40) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", + ratio, bclk, ratio * bclk); + + ratio = (msr >> 32) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", + ratio, bclk, ratio * bclk); ratio = (msr >> 24) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 16) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) - fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", ratio, bclk, ratio * bclk); -} +print_nhm_turbo_ratio_limits: -void free_counter_list(struct counters *list) -{ - struct counters *p; + if (!do_nehalem_turbo_ratio_limit) + return; - for (p = list; p; ) { - struct counters *free_me; + get_msr(0, MSR_NEHALEM_TURBO_RATIO_LIMIT, &msr); - free_me = p; - p = p->next; - free(free_me); - } -} + if (verbose > 1) + fprintf(stderr, "MSR_NEHALEM_TURBO_RATIO_LIMIT: 0x%llx\n", msr); -void free_all_counters(void) -{ - free_counter_list(cnt_even); - cnt_even = NULL; + ratio = (msr >> 56) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", + ratio, bclk, ratio * bclk); - free_counter_list(cnt_odd); - cnt_odd = NULL; + ratio = (msr >> 48) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", + ratio, bclk, ratio * bclk); - free_counter_list(cnt_delta); - cnt_delta = NULL; + ratio = (msr >> 40) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", + ratio, bclk, ratio * bclk); - free_counter_list(cnt_average); - cnt_average = NULL; -} + ratio = (msr >> 32) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", + ratio, bclk, ratio * bclk); -void insert_counters(struct counters **list, - struct counters *new) -{ - struct counters *prev; + ratio = (msr >> 24) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", + ratio, bclk, ratio * bclk); - /* - * list was empty - */ - if (*list == NULL) { - new->next = *list; - *list = new; - return; - } + ratio = (msr >> 16) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", + ratio, bclk, ratio * bclk); - if (!summary_only) - show_cpu = 1; /* there is more than one CPU */ + ratio = (msr >> 8) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", + ratio, bclk, ratio * bclk); - /* - * insert on front of list. - * It is sorted by ascending package#, core#, cpu# - */ - if (((*list)->pkg > new->pkg) || - (((*list)->pkg == new->pkg) && ((*list)->core > new->core)) || - (((*list)->pkg == new->pkg) && ((*list)->core == new->core) && ((*list)->cpu > new->cpu))) { - new->next = *list; - *list = new; - return; - } + ratio = (msr >> 0) & 0xFF; + if (ratio) + fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", + ratio, bclk, ratio * bclk); +} - prev = *list; +void free_all_buffers(void) +{ + CPU_FREE(cpu_present_set); + cpu_present_set = NULL; + cpu_present_set = 0; - while (prev->next && (prev->next->pkg < new->pkg)) { - prev = prev->next; - if (!summary_only) - show_pkg = 1; /* there is more than 1 package */ - } + CPU_FREE(cpu_affinity_set); + cpu_affinity_set = NULL; + cpu_affinity_setsize = 0; - while (prev->next && (prev->next->pkg == new->pkg) - && (prev->next->core < new->core)) { - prev = prev->next; - if (!summary_only) - show_core = 1; /* there is more than 1 core */ - } + free(thread_even); + free(core_even); + free(package_even); - while (prev->next && (prev->next->pkg == new->pkg) - && (prev->next->core == new->core) - && (prev->next->cpu < new->cpu)) { - prev = prev->next; - } + thread_even = NULL; + core_even = NULL; + package_even = NULL; - /* - * insert after "prev" - */ - new->next = prev->next; - prev->next = new; + free(thread_odd); + free(core_odd); + free(package_odd); + + thread_odd = NULL; + core_odd = NULL; + package_odd = NULL; + + free(output_buffer); + output_buffer = NULL; + outp = NULL; } -void alloc_new_counters(int pkg, int core, int cpu) +/* + * cpu_is_first_sibling_in_core(cpu) + * return 1 if given CPU is 1st HT sibling in the core + */ +int cpu_is_first_sibling_in_core(int cpu) { - struct counters *new; - - if (verbose > 1) - printf("pkg%d core%d, cpu%d\n", pkg, core, cpu); + char path[64]; + FILE *filep; + int first_cpu; - new = (struct counters *)calloc(1, sizeof(struct counters)); - if (new == NULL) { - perror("calloc"); - exit(1); - } - new->pkg = pkg; - new->core = core; - new->cpu = cpu; - insert_counters(&cnt_odd, new); - - new = (struct counters *)calloc(1, - sizeof(struct counters)); - if (new == NULL) { - perror("calloc"); + sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); + filep = fopen(path, "r"); + if (filep == NULL) { + perror(path); exit(1); } - new->pkg = pkg; - new->core = core; - new->cpu = cpu; - insert_counters(&cnt_even, new); + fscanf(filep, "%d", &first_cpu); + fclose(filep); + return (cpu == first_cpu); +} - new = (struct counters *)calloc(1, sizeof(struct counters)); - if (new == NULL) { - perror("calloc"); - exit(1); - } - new->pkg = pkg; - new->core = core; - new->cpu = cpu; - insert_counters(&cnt_delta, new); +/* + * cpu_is_first_core_in_package(cpu) + * return 1 if given CPU is 1st core in package + */ +int cpu_is_first_core_in_package(int cpu) +{ + char path[64]; + FILE *filep; + int first_cpu; - new = (struct counters *)calloc(1, sizeof(struct counters)); - if (new == NULL) { - perror("calloc"); + sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); + filep = fopen(path, "r"); + if (filep == NULL) { + perror(path); exit(1); } - new->pkg = pkg; - new->core = core; - new->cpu = cpu; - cnt_average = new; + fscanf(filep, "%d", &first_cpu); + fclose(filep); + return (cpu == first_cpu); } int get_physical_package_id(int cpu) { - char path[64]; + char path[80]; FILE *filep; int pkg; @@ -768,7 +944,7 @@ int get_physical_package_id(int cpu) int get_core_id(int cpu) { - char path[64]; + char path[80]; FILE *filep; int core; @@ -783,14 +959,87 @@ int get_core_id(int cpu) return core; } +int get_num_ht_siblings(int cpu) +{ + char path[80]; + FILE *filep; + int sib1, sib2; + int matches; + char character; + + sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); + filep = fopen(path, "r"); + if (filep == NULL) { + perror(path); + exit(1); + } + /* + * file format: + * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) + * otherwinse 1 sibling (self). + */ + matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); + + fclose(filep); + + if (matches == 3) + return 2; + else + return 1; +} + /* - * run func(pkg, core, cpu) on every cpu in /proc/stat + * run func(thread, core, package) in topology order + * skip non-present cpus */ -int for_all_cpus(void (func)(int, int, int)) +int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, + struct pkg_data *, struct thread_data *, struct core_data *, + struct pkg_data *), struct thread_data *thread_base, + struct core_data *core_base, struct pkg_data *pkg_base, + struct thread_data *thread_base2, struct core_data *core_base2, + struct pkg_data *pkg_base2) +{ + int retval, pkg_no, core_no, thread_no; + + for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { + for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { + for (thread_no = 0; thread_no < + topo.num_threads_per_core; ++thread_no) { + struct thread_data *t, *t2; + struct core_data *c, *c2; + struct pkg_data *p, *p2; + + t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); + + if (cpu_is_not_present(t->cpu_id)) + continue; + + t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); + + c = GET_CORE(core_base, core_no, pkg_no); + c2 = GET_CORE(core_base2, core_no, pkg_no); + + p = GET_PKG(pkg_base, pkg_no); + p2 = GET_PKG(pkg_base2, pkg_no); + + retval = func(t, c, p, t2, c2, p2); + if (retval) + return retval; + } + } + } + return 0; +} + +/* + * run func(cpu) on every cpu in /proc/stat + * return max_cpu number + */ +int for_all_proc_cpus(int (func)(int)) { FILE *fp; - int cpu_count; + int cpu_num; int retval; fp = fopen(proc_stat, "r"); @@ -805,78 +1054,88 @@ int for_all_cpus(void (func)(int, int, int)) exit(1); } - for (cpu_count = 0; ; cpu_count++) { - int cpu; - - retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu); + while (1) { + retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); if (retval != 1) break; - func(get_physical_package_id(cpu), get_core_id(cpu), cpu); + retval = func(cpu_num); + if (retval) { + fclose(fp); + return(retval); + } } fclose(fp); - return cpu_count; + return 0; } void re_initialize(void) { - free_all_counters(); - num_cpus = for_all_cpus(alloc_new_counters); - cpu_mask_uninit(); - cpu_mask_init(num_cpus); - printf("turbostat: re-initialized with num_cpus %d\n", num_cpus); + free_all_buffers(); + setup_all_buffers(); + printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); } -void dummy(int pkg, int core, int cpu) { return; } + /* - * check to see if a cpu came on-line + * count_cpus() + * remember the last one seen, it will be the max */ -int verify_num_cpus(void) +int count_cpus(int cpu) { - int new_num_cpus; - - new_num_cpus = for_all_cpus(dummy); + if (topo.max_cpu_num < cpu) + topo.max_cpu_num = cpu; - if (new_num_cpus != num_cpus) { - if (verbose) - printf("num_cpus was %d, is now %d\n", - num_cpus, new_num_cpus); - return -1; - } + topo.num_cpus += 1; + return 0; +} +int mark_cpu_present(int cpu) +{ + CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); return 0; } void turbostat_loop() { + int retval; + restart: - get_counters(cnt_even); + retval = for_all_cpus(get_counters, EVEN_COUNTERS); + if (retval) { + re_initialize(); + goto restart; + } gettimeofday(&tv_even, (struct timezone *)NULL); while (1) { - if (verify_num_cpus()) { + if (for_all_proc_cpus(cpu_is_not_present)) { re_initialize(); goto restart; } sleep(interval_sec); - if (get_counters(cnt_odd)) { + retval = for_all_cpus(get_counters, ODD_COUNTERS); + if (retval) { re_initialize(); goto restart; } gettimeofday(&tv_odd, (struct timezone *)NULL); - compute_delta(cnt_odd, cnt_even, cnt_delta); timersub(&tv_odd, &tv_even, &tv_delta); - compute_average(cnt_delta, cnt_average); - print_counters(cnt_delta); + for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); + compute_average(EVEN_COUNTERS); + format_all_counters(EVEN_COUNTERS); + flush_stdout(); sleep(interval_sec); - if (get_counters(cnt_even)) { + retval = for_all_cpus(get_counters, EVEN_COUNTERS); + if (retval) { re_initialize(); goto restart; } gettimeofday(&tv_even, (struct timezone *)NULL); - compute_delta(cnt_even, cnt_odd, cnt_delta); timersub(&tv_even, &tv_odd, &tv_delta); - compute_average(cnt_delta, cnt_average); - print_counters(cnt_delta); + for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); + compute_average(ODD_COUNTERS); + format_all_counters(ODD_COUNTERS); + flush_stdout(); } } @@ -916,7 +1175,7 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) case 0x2A: /* SNB */ case 0x2D: /* SNB Xeon */ case 0x3A: /* IVB */ - case 0x3D: /* IVB Xeon */ + case 0x3E: /* IVB Xeon */ return 1; case 0x2E: /* Nehalem-EX Xeon - Beckton */ case 0x2F: /* Westmere-EX Xeon - Eagleton */ @@ -924,6 +1183,22 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) return 0; } } +int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) +{ + if (!genuine_intel) + return 0; + + if (family != 6) + return 0; + + switch (model) { + case 0x3E: /* IVB Xeon */ + return 1; + default: + return 0; + } +} + int is_snb(unsigned int family, unsigned int model) { @@ -934,7 +1209,7 @@ int is_snb(unsigned int family, unsigned int model) case 0x2A: case 0x2D: case 0x3A: /* IVB */ - case 0x3D: /* IVB Xeon */ + case 0x3E: /* IVB Xeon */ return 1; } return 0; @@ -1023,12 +1298,13 @@ void check_cpuid() bclk = discover_bclk(family, model); do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model); + do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); } void usage() { - fprintf(stderr, "%s: [-v] [-M MSR#] [-i interval_sec | command ...]\n", + fprintf(stderr, "%s: [-v][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", progname); exit(1); } @@ -1051,6 +1327,208 @@ int open_dev_cpu_msr(int dummy1) return 0; } +void topology_probe() +{ + int i; + int max_core_id = 0; + int max_package_id = 0; + int max_siblings = 0; + struct cpu_topology { + int core_id; + int physical_package_id; + } *cpus; + + /* Initialize num_cpus, max_cpu_num */ + topo.num_cpus = 0; + topo.max_cpu_num = 0; + for_all_proc_cpus(count_cpus); + if (!summary_only && topo.num_cpus > 1) + show_cpu = 1; + + if (verbose > 1) + fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); + + cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); + if (cpus == NULL) { + perror("calloc cpus"); + exit(1); + } + + /* + * Allocate and initialize cpu_present_set + */ + cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); + if (cpu_present_set == NULL) { + perror("CPU_ALLOC"); + exit(3); + } + cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); + CPU_ZERO_S(cpu_present_setsize, cpu_present_set); + for_all_proc_cpus(mark_cpu_present); + + /* + * Allocate and initialize cpu_affinity_set + */ + cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); + if (cpu_affinity_set == NULL) { + perror("CPU_ALLOC"); + exit(3); + } + cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); + CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); + + + /* + * For online cpus + * find max_core_id, max_package_id + */ + for (i = 0; i <= topo.max_cpu_num; ++i) { + int siblings; + + if (cpu_is_not_present(i)) { + if (verbose > 1) + fprintf(stderr, "cpu%d NOT PRESENT\n", i); + continue; + } + cpus[i].core_id = get_core_id(i); + if (cpus[i].core_id > max_core_id) + max_core_id = cpus[i].core_id; + + cpus[i].physical_package_id = get_physical_package_id(i); + if (cpus[i].physical_package_id > max_package_id) + max_package_id = cpus[i].physical_package_id; + + siblings = get_num_ht_siblings(i); + if (siblings > max_siblings) + max_siblings = siblings; + if (verbose > 1) + fprintf(stderr, "cpu %d pkg %d core %d\n", + i, cpus[i].physical_package_id, cpus[i].core_id); + } + topo.num_cores_per_pkg = max_core_id + 1; + if (verbose > 1) + fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", + max_core_id, topo.num_cores_per_pkg); + if (!summary_only && topo.num_cores_per_pkg > 1) + show_core = 1; + + topo.num_packages = max_package_id + 1; + if (verbose > 1) + fprintf(stderr, "max_package_id %d, sizing for %d packages\n", + max_package_id, topo.num_packages); + if (!summary_only && topo.num_packages > 1) + show_pkg = 1; + + topo.num_threads_per_core = max_siblings; + if (verbose > 1) + fprintf(stderr, "max_siblings %d\n", max_siblings); + + free(cpus); +} + +void +allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) +{ + int i; + + *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * + topo.num_packages, sizeof(struct thread_data)); + if (*t == NULL) + goto error; + + for (i = 0; i < topo.num_threads_per_core * + topo.num_cores_per_pkg * topo.num_packages; i++) + (*t)[i].cpu_id = -1; + + *c = calloc(topo.num_cores_per_pkg * topo.num_packages, + sizeof(struct core_data)); + if (*c == NULL) + goto error; + + for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) + (*c)[i].core_id = -1; + + *p = calloc(topo.num_packages, sizeof(struct pkg_data)); + if (*p == NULL) + goto error; + + for (i = 0; i < topo.num_packages; i++) + (*p)[i].package_id = i; + + return; +error: + perror("calloc counters"); + exit(1); +} +/* + * init_counter() + * + * set cpu_id, core_num, pkg_num + * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE + * + * increment topo.num_cores when 1st core in pkg seen + */ +void init_counter(struct thread_data *thread_base, struct core_data *core_base, + struct pkg_data *pkg_base, int thread_num, int core_num, + int pkg_num, int cpu_id) +{ + struct thread_data *t; + struct core_data *c; + struct pkg_data *p; + + t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); + c = GET_CORE(core_base, core_num, pkg_num); + p = GET_PKG(pkg_base, pkg_num); + + t->cpu_id = cpu_id; + if (thread_num == 0) { + t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; + if (cpu_is_first_core_in_package(cpu_id)) + t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; + } + + c->core_id = core_num; + p->package_id = pkg_num; +} + + +int initialize_counters(int cpu_id) +{ + int my_thread_id, my_core_id, my_package_id; + + my_package_id = get_physical_package_id(cpu_id); + my_core_id = get_core_id(cpu_id); + + if (cpu_is_first_sibling_in_core(cpu_id)) { + my_thread_id = 0; + topo.num_cores++; + } else { + my_thread_id = 1; + } + + init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); + init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); + return 0; +} + +void allocate_output_buffer() +{ + output_buffer = calloc(1, (1 + topo.num_cpus) * 128); + outp = output_buffer; + if (outp == NULL) { + perror("calloc"); + exit(-1); + } +} + +void setup_all_buffers(void) +{ + topology_probe(); + allocate_counters(&thread_even, &core_even, &package_even); + allocate_counters(&thread_odd, &core_odd, &package_odd); + allocate_output_buffer(); + for_all_proc_cpus(initialize_counters); +} void turbostat_init() { check_cpuid(); @@ -1058,21 +1536,19 @@ void turbostat_init() check_dev_msr(); check_super_user(); - num_cpus = for_all_cpus(alloc_new_counters); - cpu_mask_init(num_cpus); + setup_all_buffers(); if (verbose) - print_nehalem_info(); + print_verbose_header(); } int fork_it(char **argv) { - int retval; pid_t child_pid; - get_counters(cnt_even); - /* clear affinity side-effect of get_counters() */ - sched_setaffinity(0, cpu_present_setsize, cpu_present_set); + for_all_cpus(get_counters, EVEN_COUNTERS); + /* clear affinity side-effect of get_counters() */ + sched_setaffinity(0, cpu_present_setsize, cpu_present_set); gettimeofday(&tv_even, (struct timezone *)NULL); child_pid = fork(); @@ -1095,14 +1571,17 @@ int fork_it(char **argv) exit(1); } } - get_counters(cnt_odd); + /* + * n.b. fork_it() does not check for errors from for_all_cpus() + * because re-starting is problematic when forking + */ + for_all_cpus(get_counters, ODD_COUNTERS); gettimeofday(&tv_odd, (struct timezone *)NULL); - retval = compute_delta(cnt_odd, cnt_even, cnt_delta); - timersub(&tv_odd, &tv_even, &tv_delta); - compute_average(cnt_delta, cnt_average); - if (!retval) - print_counters(cnt_delta); + for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); + compute_average(EVEN_COUNTERS); + format_all_counters(EVEN_COUNTERS); + flush_stderr(); fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); @@ -1115,9 +1594,15 @@ void cmdline(int argc, char **argv) progname = argv[0]; - while ((opt = getopt(argc, argv, "+svi:M:")) != -1) { + while ((opt = getopt(argc, argv, "+pPSvisc:sC:m:M:")) != -1) { switch (opt) { - case 's': + case 'p': + show_core_only++; + break; + case 'P': + show_pkg_only++; + break; + case 'S': summary_only++; break; case 'v': @@ -1126,10 +1611,20 @@ void cmdline(int argc, char **argv) case 'i': interval_sec = atoi(optarg); break; + case 'c': + sscanf(optarg, "%x", &extra_delta_offset32); + break; + case 's': + extra_delta_offset32 = 0x34; /* SMI counter */ + break; + case 'C': + sscanf(optarg, "%x", &extra_delta_offset64); + break; + case 'm': + sscanf(optarg, "%x", &extra_msr_offset32); + break; case 'M': - sscanf(optarg, "%x", &extra_msr_offset); - if (verbose > 1) - fprintf(stderr, "MSR 0x%X\n", extra_msr_offset); + sscanf(optarg, "%x", &extra_msr_offset64); break; default: usage(); @@ -1142,10 +1637,8 @@ int main(int argc, char **argv) cmdline(argc, argv); if (verbose > 1) - fprintf(stderr, "turbostat Dec 6, 2010" + fprintf(stderr, "turbostat v2.1 October 6, 2012" " - Len Brown <lenb@kernel.org>\n"); - if (verbose > 1) - fprintf(stderr, "http://userweb.kernel.org/~lenb/acpi/utils/pmtools/turbostat/\n"); turbostat_init(); |