Unusually high LA without any load at FreeBSD9-BETA2

Alex Kozlov spam at rm-rf.kiev.ua
Mon Sep 26 10:28:29 UTC 2011


On Tue, Sep 06, 2011 at 08:32:55PM +0300, Alex Kozlov wrote:
> On Tue, Sep 06, 2011 at 05:22:02PM +0000, Poul-Henning Kamp wrote:
>> We should kille the load avarage as a measure for system activity,
>> it only has any relevance if you run heavy CPU bound processes.
> It may be true, but in current kernel from beginning of june I would
I mean stable kernel from beginning of june...

> see la about 0,01 in this situation.
>
> Note that cpu idling:
> dev.cpu.0.freq: 300
> dev.cpu.0.freq_levels: 2200/35000 1925/30625 1650/26250 1600/23000 1400/20125 1200/15000 1050/13125 900/11250 750/9375 600/7500 450/5625 300/3750 150/1875
> dev.cpu.0.cx_supported: C1/1 C2/1 C3/17
> [...]
> 11 root        2 155 ki31     0K    32K CPU1    1  29.4H 200.00% idle
>
> I think process accounting get broken or something like this.
I updated to BETA-3, disabled all unnecessary modules (sound, net, wifi, ahci),
boot in single user (no tricky programs, no external influence) and left laptop
for 12+ hours, when I returned LA: 0,62 0,74 0,72
Anyone else observed something like that?

If I boot from another flash with 8-STABLE from june, after a few hours I
get LA: 0,01 0,00 0,00 , as expected.


--
Adios


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