defconfig: Enable CONFIG_SCHED_DEBUG and CONFIG_SCHEDSTATS
CONFIG_SCHED_DEBUG and CONFIG_SCHEDSTATS provide useful information to
debug scheduler issues. Enable these options for debug builds.
CONFIG_SCHED_DEBUG adds very minimal overhead, and that too, only when user
attempts to read some files in /proc. CONFIG_SCHEDSTATS maintains execution
statistics for all tasks on a ongoing basis and will have very minimal
overhead. The execution statistics help understand (among other things)
tasks having large scheduling latencies and thus lead to performance
issues.
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Change-Id: Ia4547015925a50829685c75ac6b8fc291b06cc6a
diff --git a/arch/arm/configs/msm8960_defconfig b/arch/arm/configs/msm8960_defconfig
index 386f311..48495f4 100644
--- a/arch/arm/configs/msm8960_defconfig
+++ b/arch/arm/configs/msm8960_defconfig
@@ -494,7 +494,7 @@
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOCKUP_DETECTOR=y
-# CONFIG_SCHED_DEBUG is not set
+CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_KMEMLEAK=y
CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y