Hi, yesterday I tried switch event timer on i8254 - it do nothing. I disabled hyperthreading - now eat from 50% to 100% All dmesg is lines: (noperiph:ata3:0:-1:-1): rescan already queued (noperiph:ata3:0:-1:-1): rescan already queued (noperiph:ata2:0:-1:-1): rescan already queued (noperiph:ata3:0:-1:-1): rescan already queued (noperiph:ata3:0:-1:-1): rescan already queued .... I boot FreeBSD from USB with no ATA - may be it is. %sysctl -a | grep event kern.eventtimer.choice: HPET(450) HPET1(440) HPET2(440) LAPIC(400) i8254(100) RTC(0) kern.eventtimer.et.LAPIC.flags: 15 kern.eventtimer.et.LAPIC.frequency: 0 kern.eventtimer.et.LAPIC.quality: 400 kern.eventtimer.et.HPET.flags: 3 kern.eventtimer.et.HPET.frequency: 14318180 kern.eventtimer.et.HPET.quality: 450 kern.eventtimer.et.HPET1.flags: 3 kern.eventtimer.et.HPET1.frequency: 14318180 kern.eventtimer.et.HPET1.quality: 440 kern.eventtimer.et.HPET2.flags: 3 kern.eventtimer.et.HPET2.frequency: 14318180 kern.eventtimer.et.HPET2.quality: 440 kern.eventtimer.et.RTC.flags: 17 kern.eventtimer.et.RTC.frequency: 32768 kern.eventtimer.et.RTC.quality: 0 kern.eventtimer.et.i8254.flags: 1 kern.eventtimer.et.i8254.frequency: 1193182 kern.eventtimer.et.i8254.quality: 100 kern.eventtimer.periodic: 1 kern.eventtimer.timer: i8254 kern.eventtimer.idletick: 0 kern.eventtimer.singlemul: 2 "ifnet_rw","eventhandler" "eventhandler","eventhandler list" "so_rcv","eventhandler" "lle","eventhandler" "Giant","intr event list" "Giant","eventhandler" "Giant","eventhandler list" "Giant","intr event" "proctree","clone events drain lock" "clone events drain lock","cdev" "clone events drain lock","eventhandler" "clone events drain lock","eventhandler list" "devfs","clone events drain lock" "MD config lock","eventhandler" hw.mfi.event_class: 0 hw.mfi.event_locale: 65535 CL\PU load is waves with period about 20sec. _____________________________________________________________ %systat -vmstat 2 users Load 3,47 2,85 2,80 9 июн 14:45 Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER Tot Share Tot Share Free in out in out Act 16696 3772 285868 5120 51636 count All 94204 5096 2449788 22376 pages Proc: Interrupts r p d s w Csw Trp Sys Int Sof Flt cow 2018 total 29 137 1 25 2018 673 zfod atkbd0 1 ozfod 1998 attimer0 0 50,2%Sys 0,9%Intr 0,1%User 0,0%Nice 48,7%Idle %ozfod hpet0 20 | | | | | | | | | | | daefr 1 uhci0 ehci =========================+ prcfr 19 re0 256 2 dtbuf totfr Namei Name-cache Dir-cache 68416 desvn react Calls hits % hits % 58261 numvn pdwak 3 3 100 17084 frevn pdpgs intrn Disks md8 da0 pass0 121076 wire KB/t 0,00 2,00 0,00 32224 act tps 0 0 0 790704 inact MB/s 0,00 0,00 0,00 9560 cache %busy 0 0 0 42076 free ____________________________________________________________________ After half minute _______________________________________________________________________ 2 users Load 3,52 2,90 2,81 9 июн 14:46 Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER Tot Share Tot Share Free in out in out Act 16696 3772 285868 5120 51636 count All 94204 5096 2449788 22376 pages Proc: Interrupts r p d s w Csw Trp Sys Int Sof Flt cow 2022 total 5 24 80 1 18 2023 803 zfod atkbd0 1 ozfod 2000 attimer0 0 57,8%Sys 26,0%Intr 0,0%User 0,0%Nice 16,2%Idle %ozfod hpet0 20 | | | | | | | | | | | daefr uhci0 ehci =============================+++++++++++++ prcfr 22 re0 256 dtbuf totfr Namei Name-cache Dir-cache 68416 desvn react Calls hits % hits % 58261 numvn pdwak 3 3 100 17084 frevn pdpgs intrn Disks md8 da0 pass0 121076 wire KB/t 0,00 0,00 0,00 32228 act tps 0 0 0 790700 inact MB/s 0,00 0,00 0,00 9560 cache %busy 0 0 0 42076 free ____________________________________________________________________ Wed, 08 Jun 2011 20:34:42 +0300 письмо от Alexander Motin <mav_at_FreeBSD.org>: > On 07.06.2011 20:12, Andrey Smagin wrote: > > vmstat -i > > interrupt total rate > > irq16: uhci3 205 0 > > irq20: hpet0 147924380 1126 > > irq23: uhci0 ehci0 522517 3 > > total 148447102 1130 > > > > Tue, 7 Jun 2011 10:34:01 +0200 письмо от Hans Petter > Selasky<hselasky_at_c2i.net>: > > > >> On Tuesday 07 June 2011 10:09:47 Andrey Smagin wrote: > >>> I upgraded 2 day ago from 2010xxxx-current box on Intel D525MW. > >>> System very slow down after that. > >>> kern.hz=50 > >>> in systat -vmstat - 140hpet interrupts/s > >>> at top 25% in interrupts 25% in system > >>> because hyperthreading system found 4 cpu. > >> > >> What does vmstat -i output? > > Send me please full verbose dmesg and output of the `sysctl > kern.eventtimer` and `sysctl kern.timecounter`. > > Try to switch to another timer: > sysctl kern.eventtimer.timer=LAPIC > > Try to switch to periodic timers (instead): > sysctl kern.eventtimer.periodic=1 > > -- > Alexander Motin > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"Received on Thu Jun 09 2011 - 08:49:04 UTC
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