Messages in this thread | | | Date | Mon, 29 Nov 2021 14:49:28 -0500 | From | Josef Bacik <> | Subject | Re: [REGRESSION] 5-10% increase in IO latencies with nohz balance patch |
| |
On Mon, Nov 29, 2021 at 06:31:17PM +0000, Valentin Schneider wrote: > On 29/11/21 13:15, Josef Bacik wrote: > > On Mon, Nov 29, 2021 at 06:03:24PM +0000, Valentin Schneider wrote: > >> Would you happen to have execution traces by any chance? If not I should be > >> able to get one out of that fsperf thingie. > >> > > > > I don't, if you want to tell me how I can do it right now. I've disabled > > everything on this box for now so it's literally just sitting there waiting to > > have things done to it. Thanks, > > > > I see you have Ftrace enabled in your config, so that ought to do it: > > trace-cmd record -e 'sched:*' -e 'cpu_idle' $your_test_cmd >
http://toxicpanda.com/performance/trace.dat
it's like 16mib. Enjoy,
Josef
| |