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e36c886a0f
With the introduction of the new unified work queue thread pools, we lost one feature: It's no longer possible to know which worker is causing the CPU to wake out of idle. The result is that PowerTOP now reports a lot of "kworker/a:b" instead of more readable results. This patch adds a pair of tracepoints to the new workqueue code, similar in style to the timer/hrtimer tracepoints. With this pair of tracepoints, the next PowerTOP can correctly report which work item caused the wakeup (and how long it took): Interrupt (43) i915 time 3.51ms wakeups 141 Work ieee80211_iface_work time 0.81ms wakeups 29 Work do_dbs_timer time 0.55ms wakeups 24 Process Xorg time 21.36ms wakeups 4 Timer sched_rt_period_timer time 0.01ms wakeups 1 Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| bkl.h | ||
| block.h | ||
| ext4.h | ||
| gfpflags.h | ||
| irq.h | ||
| jbd2.h | ||
| kmem.h | ||
| kvm.h | ||
| lock.h | ||
| mce.h | ||
| module.h | ||
| napi.h | ||
| power.h | ||
| sched.h | ||
| scsi.h | ||
| signal.h | ||
| skb.h | ||
| syscalls.h | ||
| timer.h | ||
| vmscan.h | ||
| workqueue.h | ||
| writeback.h | ||