From: Andrey Konovalov Date: Thu, 11 Apr 2013 12:44:26 +0000 (+0400) Subject: configs: Move CONFIG_PROVE_LOCKING from linaro-base.conf to debug.conf X-Git-Tag: firefly_0821_release~3680^2~164^2~11^2~19 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2eb2a8356500523fb67d6f8f91e0ea84db0d9cca;p=firefly-linux-kernel-4.4.55.git configs: Move CONFIG_PROVE_LOCKING from linaro-base.conf to debug.conf 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 --- 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