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CONFIG_TIMER_STATS: Collect kernel timers statistics

General informations

The Linux kernel configuration item CONFIG_TIMER_STATS:

Help text

If you say Y here, additional code will be inserted into the timer routines to collect statistics about kernel timers being reprogrammed. The statistics can be read from /proc/timer_stats. The statistics collection is started by writing 1 to /proc/timer_stats, writing 0 stops it. This feature is useful to collect information about timer usage patterns in kernel and userspace. This feature is lightweight if enabled in the kernel config but not activated (it defaults to deactivated on bootup and will only be activated if some application like powertop activates it explicitly).



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