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authorAndrey Konovalov <andrey.konovalov@linaro.org>2013-04-11 16:44:26 +0400
committerAndrey Konovalov <andrey.konovalov@linaro.org>2013-04-11 16:44:26 +0400
commitd2e7da5149679b501cdb4b8449bf15e7ae1c0bdb (patch)
tree58be4f6571dc47b1002d530f4bdea4e3b2316f0d
parentf660fd6d1c8d45fdfe0ca1e2fa4ba3eb9fec3b4f (diff)
downloadlinux-linaro-stable-v3.9/configs.tar.gz
configs: Move CONFIG_PROVE_LOCKING from linaro-base.conf to debug.confv3.9/configs
CONFIG_PROVE_LOCKING is an expensive option which adds significant overhead to lock operations. The examples are 5% power consumption increase for vexpress with this option enabled, and improving netperf on the loopback results by ~200% after disabling DEBUG_MUTEXES (DEBUG_MUTEXES is selected by PROVE_LOCKING). Move CONFIG_PROVE_LOCKING to a separate debug.conf fragment, so that it could be enabled only when it is needed. Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
-rw-r--r--linaro/configs/debug.conf1
-rw-r--r--linaro/configs/linaro-base.conf1
2 files changed, 1 insertions, 1 deletions
diff --git a/linaro/configs/debug.conf b/linaro/configs/debug.conf
new file mode 100644
index 000000000000..36980566b2d8
--- /dev/null
+++ b/linaro/configs/debug.conf
@@ -0,0 +1 @@
+CONFIG_PROVE_LOCKING=y
diff --git a/linaro/configs/linaro-base.conf b/linaro/configs/linaro-base.conf
index 1b4872b4529a..5c748a75dfe6 100644
--- a/linaro/configs/linaro-base.conf
+++ b/linaro/configs/linaro-base.conf
@@ -76,7 +76,6 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
-CONFIG_PROVE_LOCKING=y
CONFIG_KEYS=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRC_CCITT=y