Re: Load 0.20 on a freshly installed idle system

From: Stavros Filargyropoulos <stav_at_stav.cc>
Date: Sat, 21 Jan 2023 00:28:04 UTC
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
>>>>
>>>
>>>
>>> --
>>> __________________
>>>
>>> :(){ :|:& };:
>>>
>>
>
> --
> __________________
>
> :(){ :|:& };:
>