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authorBenoît Canet <benoit@irqsave.net>2013-09-02 14:14:40 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2013-09-06 15:25:07 +0200
commit3e9fab690d59ac15956c3733fe0794ce1ae4c4af (patch)
tree0d7b4d55ff9a3664091148713c5a5bc3e2a02c8d /qemu-options.hx
parentcc0681c45430a1f1a4c2d06e9499b7775afc9a18 (diff)
downloadqemu-arm-3e9fab690d59ac15956c3733fe0794ce1ae4c4af.tar.gz
block: Add support for throttling burst max in QMP and the command line.
The max parameter of the leaky bucket throttling algorithm can be used to allow the guest to do bursts. The max value is a pool of I/O that the guest can use without being throttled at all. Throttling is triggered once this pool is empty. Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx5
1 files changed, 4 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index d15338e879..d3760df133 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -409,7 +409,10 @@ DEF("drive", HAS_ARG, QEMU_OPTION_drive,
" [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n"
" [,serial=s][,addr=A][,id=name][,aio=threads|native]\n"
" [,readonly=on|off][,copy-on-read=on|off]\n"
- " [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]][[,iops=i]|[[,iops_rd=r][,iops_wr=w]]\n"
+ " [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]]\n"
+ " [[,iops=i]|[[,iops_rd=r][,iops_wr=w]]]\n"
+ " [[,bps_max=bm]|[[,bps_rd_max=rm][,bps_wr_max=wm]]]\n"
+ " [[,iops_max=im]|[[,iops_rd_max=irm][,iops_wr_max=iwm]]]\n"
" use 'file' as a drive image\n", QEMU_ARCH_ALL)
STEXI
@item -drive @var{option}[,@var{option}[,@var{option}[,...]]]