Messages in this thread | | | Date | Tue, 2 Aug 2022 14:41:30 +0900 | From | Masami Hiramatsu (Google) <> | Subject | Re: [PATCH 0/2] tracing/hist: Add percentage histogram suffixes |
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On Mon, 1 Aug 2022 16:58:40 -0400 Steven Rostedt <rostedt@goodmis.org> wrote:
> On Mon, 1 Aug 2022 12:00:40 +0900 > "Masami Hiramatsu (Google)" <mhiramat@kernel.org> wrote: > > > Here are a couple of patches to add .percent and .graph histogram > > value suffixes to show the value in percentage and in bar-graph. > > > > This will help us to check the trend of the histogram instantly > > without the post processing tool. > > > > Here shows the example of the percentage and the bar graph of > > the runtime of the running tasks. > > > > /sys/kernel/tracing # echo hist:keys=pid:vals=runtime.percent,runtime.graph:sort > > =pid >> events/sched/sched_stat_runtime/trigger > > /sys/kernel/tracing # sleep 10 > > /sys/kernel/tracing # cat events/sched/sched_stat_runtime/hist > > # event histogram > > # > > # trigger info: hist:keys=pid:vals=hitcount,runtime.percent,runtime.graph:sort=pid:size=2048 [active] > > # > > > > { pid: 8 } hitcount: 11 runtime: 4.11 runtime: # > > { pid: 9 } hitcount: 4 runtime: 1.28 runtime: > > { pid: 14 } hitcount: 10 runtime: 2.22 runtime: > > { pid: 15 } hitcount: 1 runtime: 0.07 runtime: > > { pid: 16 } hitcount: 21 runtime: 3.35 runtime: # > > { pid: 57 } hitcount: 6 runtime: 2.41 runtime: # > > { pid: 61 } hitcount: 42 runtime: 9.79 runtime: #### > > { pid: 66 } hitcount: 5 runtime: 0.69 runtime: > > { pid: 147 } hitcount: 36 runtime: 45.33 runtime: #################### > > { pid: 8548 } hitcount: 9 runtime: 17.25 runtime: ####### > > { pid: 8549 } hitcount: 8 runtime: 13.43 runtime: ##### > > > > Totals: > > Hits: 153 > > Entries: 11 > > Dropped: 0 > > > > Hi Masami, > > Thanks for this as well. But as it's a new feature, and I freeze new > features when the merge window starts, I'll add this to my queue for the > next window.
Yeah, that's no problem. Please queue it for the next window :)
Thank you!
> > -- Steve
-- Masami Hiramatsu (Google) <mhiramat@kernel.org>
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