i understand about idle process but why is pmcstat -TS inst_retired.any_p -w1 showing
PMC: [inst_retired.any_p] Samples: 220 (100.0%) , 36 unresolved %SAMP IMAGE FUNCTION CALLERS ------>>>>>>> 67.4 kernel acpi_cpu_idle_mwait acpi_cpu_idle could you please run pmcstat on your server and see the output ? is where also a high % the kernel using ? On Mon, Feb 15, 2021 at 11:29 AM Olivier Cochard-Labbé <[email protected]> wrote: > On Mon, Feb 15, 2021 at 7:14 AM Сучасні Системи Безпеки < > [email protected]> wrote: > >> >> >> it is a clean server and its doing nothing right now >> >> why is so high % using acpi_cpu_idle_mwait ? >> > > If my understanding is correct: The idle process is a 'fake' process used > to count CPU time spent in idle mode (ie: doing nothing). > Here is an example from one of my server: > > # top -b | head -n 7 > last pid: 1733; load averages: 0.00, 0.00, 0.00 up 15+00:38:42 > 09:20:37 > 62 processes: 1 running, 58 sleeping, 3 zombie > CPU: 0.4% user, 0.0% nice, 0.1% system, 0.0% interrupt, 99.5% idle > Mem: 120M Active, 17G Inact, 95G Wired, 11G Free > ARC: 54G Total, 12G MFU, 40G MRU, 1312K Anon, 528M Header, 1720M Other > 49G Compressed, 112G Uncompressed, 2.29:1 Ratio > Swap: 100G Total, 100G Free > > => Notice the 99.5% idle showing my system is doing nothing. > And the same top command as your on this system: > > # top -SHb | tail -n 20 > PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 11 root 155 ki31 0B 512K CPU16 16 358.9H 100.00% > idle{idle: cpu16} > 11 root 155 ki31 0B 512K CPU22 22 358.9H 100.00% > idle{idle: cpu22} > 11 root 155 ki31 0B 512K CPU1 1 358.9H 100.00% > idle{idle: cpu1} > 11 root 155 ki31 0B 512K CPU0 0 358.8H 100.00% > idle{idle: cpu0} > 11 root 155 ki31 0B 512K CPU26 26 358.8H 100.00% > idle{idle: cpu26} > 11 root 155 ki31 0B 512K CPU20 20 358.8H 100.00% > idle{idle: cpu20} > 11 root 155 ki31 0B 512K CPU18 18 358.8H 100.00% > idle{idle: cpu18} > 11 root 155 ki31 0B 512K CPU3 3 358.8H 100.00% > idle{idle: cpu3} > 11 root 155 ki31 0B 512K CPU24 24 358.8H 100.00% > idle{idle: cpu24} > 11 root 155 ki31 0B 512K CPU30 30 358.8H 100.00% > idle{idle: cpu30} > 11 root 155 ki31 0B 512K CPU7 7 358.8H 100.00% > idle{idle: cpu7} > 11 root 155 ki31 0B 512K CPU23 23 358.8H 100.00% > idle{idle: cpu23} > 11 root 155 ki31 0B 512K CPU28 28 358.8H 100.00% > idle{idle: cpu28} > 11 root 155 ki31 0B 512K CPU8 8 358.8H 100.00% > idle{idle: cpu8} > 11 root 155 ki31 0B 512K CPU11 11 358.8H 100.00% > idle{idle: cpu11} > 11 root 155 ki31 0B 512K CPU15 15 358.8H 100.00% > idle{idle: cpu15} > 11 root 155 ki31 0B 512K CPU5 5 358.8H 100.00% > idle{idle: cpu5} > 11 root 155 ki31 0B 512K CPU6 6 358.8H 100.00% > idle{idle: cpu6} > > Do you have a too high CPU power consumption in this idle state ? > > Regards, > > Olivier > _______________________________________________ > Bsdrp-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/bsdrp-users > -- "Cучасні Системи Безпеки" http://www.itlogix.com.ua +38 (050) 523-66-17 +38 (067) 523-66-17
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