Re: Load 0.20 on a freshly installed idle system
Date: Sat, 21 Jan 2023 00:56:14 UTC
I'll concede it probably isn't a 5 second window as what I've provided is
for OpenBSD, but it's still a measurement of processes in the run queue -
that's for sure.
I'm being lazy and don't want to look at the source code. That's something
you could do.
Thanks,
Paul Procacci
On Fri, Jan 20, 2023 at 7:28 PM Stavros Filargyropoulos <stav@stav.cc>
wrote:
> Thanks Paul, but If that was the case, then running 5 `top -SH` with a
> refresh of 1 second, should increase the load to x4. Which is not what I
> see.
>
> This answer seems a bit vague. Is that the best explanation we have? Do
> you mean to say that there is not a single freebsd box out there that has a
> load of less than 0.20?
>
> I'm pretty sure that last time I run FreeBSD that wasn't the case. Also
> haven't seen this load in idle system in any other *BSDs.
>
> Thanks for taking a look anyway.
>
> On Fri, Jan 20, 2023 at 4:19 PM Paul Procacci <pprocacci@gmail.com> wrote:
>
>> Stavros,
>>
>> Load averages by themselves mean very little.
>> It's not a figure of cpu usage if that's what you're worried about.
>>
>> Load averages on BSD are simply processes which have wanted to run at
>> least once in the most recent 5-second window, with a degradation over
>> time.[1]
>>
>> Unless you're having a specific problem, I'd guess to say there is no
>> problem here at all.
>>
>> Thanks,
>> Paul Procacci
>>
>> [1] - http://www.undeadly.org/cgi?action=article&sid=20090715034920
>>
>>
>> On Fri, Jan 20, 2023 at 6:59 PM Stavros Filargyropoulos <stav@stav.cc>
>> wrote:
>>
>>> Thanks Paul.
>>>
>>> Yeah, I used the `-SH` flags. Don't see anything suspicious.
>>>
>>> This is is the output of the `systat`: Not sure I understand much from it
>>>
>>> 2 users Load 0.20 0.15 0.06 Jan 20 15:54:53
>>> Mem usage: 1%Phy 0%Kmem VN PAGER SWAP
>>> PAGER
>>> Mem: REAL VIRTUAL in out in
>>> out
>>> Tot Share Tot Share Free count
>>> Act 33476K 10672K 513G 12612K 31367M pages
>>> All 35920K 12928K 513G 47112K ioflt
>>> Interrupts
>>> Proc: cow 34
>>> total
>>> r p d s w Csw Trp Sys Int Sof Flt zfod
>>> uart0 4
>>> 25 118 1 21 5 13 1 ozfod 10
>>> cpu0:timer
>>> %ozfod 9
>>> cpu1:timer
>>> 0.0%Sys 0.0%Intr 0.0%User 0.0%Nice 100%Idle daefr 6
>>> cpu2:timer
>>> | | | | | | | | | | | prcfr 4
>>> cpu3:timer
>>> totfr 4
>>> xhci0 128
>>> 229 dtbuf react
>>> ahci0 129
>>> Namei Name-cache Dir-cache 619780 maxvn pdwak
>>> nvme0:admi
>>> Calls hits % hits % 805 numvn 5 pdpgs
>>> nvme0:io0
>>> 7 7 100 52 frevn intrn
>>> nvme0:io1
>>> 355M wire
>>> nvme0:io2
>>> Disks nvd0 ada0 ada1 ada2 ada3 ada4 da0 17M act
>>> nvme0:io3
>>> KB/t 16.00 0.00 0.00 0.00 0.00 0.00 0.00 2880K inact
>>> igb0:rxq0
>>> tps 0 0 0 0 0 0 0 0 laund
>>> igb0:rxq1
>>> MB/s 0.01 0.00 0.00 0.00 0.00 0.00 0.00 31G free 1
>>> igb0:rxq2
>>> %busy 0 0 0 0 0 0 0 142M buf
>>> igb0:rxq3
>>>
>>> igb0:aq
>>>
>>> And the output of `top -SH` for reference:
>>>
>>> last pid: 1508; load averages: 0.25, 0.22, 0.10
>>>
>>> up
>>> 0+00:08:13 15:57:54
>>> 131 threads: 5 running, 106 sleeping, 20 waiting
>>> CPU: 0.1% user, 0.0% nice, 0.0% system, 0.0% interrupt, 99.9% idle
>>> Mem: 16M Active, 3032K Inact, 355M Wired, 142M Buf, 31G Free
>>> Swap: 3962M Total, 3962M Free
>>>
>>> PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU
>>> COMMAND
>>> 11 root 155 ki31 0B 64K RUN 2 8:12 99.99%
>>> idle{idle: cpu2}
>>> 11 root 155 ki31 0B 64K CPU3 3 8:11 99.98%
>>> idle{idle: cpu3}
>>> 11 root 155 ki31 0B 64K CPU0 0 8:12 99.97%
>>> idle{idle: cpu0}
>>> 11 root 155 ki31 0B 64K CPU1 1 8:11 99.96%
>>> idle{idle: cpu1}
>>> 0 root -76 - 0B 640K - 0 0:00 0.04%
>>> kernel{if_config_tqg_0}
>>> 1508 stavros 20 0 14M 3812K CPU2 2 0:00 0.02% top
>>> 1493 stavros 20 0 15M 5080K select 1 0:00 0.02% tmux
>>> 12 root -60 - 0B 320K WAIT 3 0:01 0.01%
>>> intr{swi4: clock (0)}
>>> 5 root -16 - 0B 16K - 0 0:00 0.01%
>>> rand_harvestq
>>> 6 root -16 - 0B 48K psleep 0 0:00 0.00%
>>> pagedaemon{dom0}
>>> 1440 stavros 20 0 21M 9440K select 3 0:00 0.00% sshd
>>> 1404 root 20 0 18M 6988K select 2 0:00 0.00%
>>> sendmail
>>> 15 root -72 - 0B 96K - 3 0:00 0.00%
>>> usb{usbus0}
>>> 12 root -60 - 0B 320K WAIT 2 0:00 0.00%
>>> intr{swi4: clock (2)}
>>> 12 root -88 - 0B 320K WAIT 2 0:00 0.00%
>>> intr{irq128: xhci0}
>>> 8 root 20 - 0B 144K sdflus 3 0:00 0.00%
>>> bufdaemon{/ worker}
>>> 12 root -60 - 0B 320K WAIT 1 0:00 0.00%
>>> intr{swi4: clock (1)}
>>> 0 root -76 - 0B 640K - 2 0:00 0.00%
>>> kernel{if_io_tqg_2}
>>> 8 root -16 - 0B 144K - 1 0:00 0.00%
>>> bufdaemon{bufspacedaemon-0}
>>> 9 root 16 - 0B 16K syncer 3 0:00 0.00% syncer
>>> 12 root -60 - 0B 320K WAIT 3 0:00 0.00%
>>> intr{swi4: clock (3)}
>>> 8 root -16 - 0B 144K psleep 2 0:00 0.00%
>>> bufdaemon{bufdaemon}
>>> 8 root -16 - 0B 144K - 0 0:00 0.00%
>>> bufdaemon{bufspacedaemon-1}
>>>
>>> Thanks,
>>> Stavros
>>>
>>>
>>> On Fri, Jan 20, 2023 at 2:03 PM Paul Procacci <pprocacci@gmail.com>
>>> wrote:
>>>
>>>> What flags have you included with top?
>>>>
>>>> By default `top` doesn't show any kernel related processes. `top -SH`
>>>> is useful in this respect and others flags may be useful as well.
>>>>
>>>> systat -vmstat
>>>>
>>>> ^^ Another command that I like. Also may give you insight.
>>>>
>>>> Thanks,
>>>> Paul Procacci
>>>>
>>>> On Fri, Jan 20, 2023 at 4:33 PM Stavros Filargyropoulos <stav@stav.cc>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I just installed 13.1 on a system, and the load is at 0.20 at all
>>>>> times, although nothing is running and the CPU is 100% free.
>>>>>
>>>>> `ps aux` and `top` don't show anything of interest either.
>>>>>
>>>>> For what's worth it, the motherboard is a Supermicro X12STL-IF and the
>>>>> CPU a Xeon 2314.
>>>>>
>>>>> Any ideas/commands that will help me troubleshoot this further?
>>>>>
>>>>> Thanks,
>>>>> Stavros
>>>>>
>>>>
>>>>
>>>> --
>>>> __________________
>>>>
>>>> :(){ :|:& };:
>>>>
>>>
>>
>> --
>> __________________
>>
>> :(){ :|:& };:
>>
>
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