Re: [SLUG] slowdown

From: Eben King (eben01@verizon.net)
Date: Tue Feb 12 2008 - 11:07:41 EST


On Tue, 12 Feb 2008, ronan wrote:

> Eben King wrote:
>> Something's using up CPU time on my machine, but nothing shows in top nor
>> gkrellm's strip charts, nor does any unusual network use show up in
>> gkrellm. But bash and trn take seconds to start and exit, and the CPU speed
>> is a constant 2.4G (normally it falls back when nothing's happening). How
>> can I find out what it is? I can get network bandwidth from the
>> internet-facing router for everyone combined (which is mostly me), for
>> periods from 1m - 5h.
>>
> "vmstat 1" will give you details about i/o (not just network i/o), swapping,
> etc. It will also give you the CPU usage, similar to "top", but I have often
> seen it give good information where "top" is obviously incorrect.
>
> The "1" parameter is to update every one seconds. You can use whatever value
> you like, but just like "top", the first value can't be trusted (usually
> pretty whacky) since it will be an incomplete period.

OK, I have it on 5 (that's about as fast as I can read anyhow), and it says:

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
  r b swpd free buff cache si so bi bo in cs us sy id wa
  2 0 1248 82236 50388 1110464 0 0 0 50 1352 1029 5 2 93 0

So, swap barely touched, 50 blocks per second (per 5 seconds?) out (I'm
running a few torrents, but the total is 30-50 K/s _in_), system 93%
idle. Otherwise seems OK. Why is it so slow then?

-- 
-eben   QebWenE01R@vTerYizUonI.nOetP   royalty.mine.nu:81

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