Commit 77a60cb8 authored Apr 11, 2013 by Andrey Konovalov Committed by Kevin Hilman May 12, 2015

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 <andrey.konovalov@linaro.org>

parent 47130c9a

linaro/configs/debug.conf

0 → 100644

+1 −0

Original line number	Diff line number	Diff line
		CONFIG_PROVE_LOCKING=y

linaro/configs/linaro-base.conf

+0 −1

Original line number	Diff line number	Diff line
		@@ -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