Re: Slocate/backup, big load on 2.4.X

From: Bartlomiej Solarz-Niesluchowski (B.Solarz-Niesluchowski@wsisiz.edu.pl)
Date: Thu May 29 2003 - 00:21:30 EST


At 01:03 2003-05-29, Andrew Morton wrote:
Lukasz Trabinski <lukasz@xxxxxxxxxxxxxxxx> wrote:
>
> After 12 hours of reboot, when updatedb is running or backup via amanda,
> system "get" very high load,

High load isn't necesarily a problem - it just means that a lot of
processes are waiting on disk I/O. Because updatedb is flogging the disks.

For me it is problem because whole machine "freezes" (no reaction on anything) for 2-3 minutes.... - and after 2-3 minutes it has load about 50-100 - I think that it has higher load (>100) when it "freezes" then after next 2-3 minutes situation repeates....


Do a full "ps aux" listing and you'll probably see lots of processes in "D"
state, waiting for the disk head to seek across and read whatever it is
they are trying to read.

In top I can see that many processes are in state R (e.g. over 50)....

Strange it is that on slover machine (2*1GHz) and slover disks (7200 / 160Mb/s) this was no "strange" effect like this....

Best Regards

--
Bartlomiej Solarz-Niesluchowski, Administrator WSISiZ
e-mail: B.Solarz-Niesluchowski@xxxxxxxxxxxxx
01-447 Warszawa, ul. Newelska 6, pokoj 404, pon.-pt. 8-16, tel. 836-92-53
Motto - nie psuj Win'9x one i bez tego sie psuja....
Jak sobie poscielisz tak sie wyspisz

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