vmstat 'b' (disk busy?) field keeps climbing ...

[Marc G. Fournier]

On Mon, 26 Jun 2006, Max Laier wrote:

> On Monday 26 June 2006 20:25, Marc G. Fournier wrote:
>> I think I might have found *at least* one of the problems, and that being
>> the excessively high blocked states while ps isn't finding anything ...
>>
>> MySQL
>>
>> We just recently started allowing clients to run a MySQL server *within*
>> their vServer ... in a drastic move, I just shut them all down on pluto,
>> and blocked drop'd from ~86 down to 5 in a matter of moments ...
>> restarting them all has it climbing once more, being up around 22 already
>> ...
>>
>> I'm going to go with that theory for now, and keep an eye on things ...
>>
>> Just curious as to why, even with -H, its not showing any blocked states
>> within ps though ... ?
>
> The "blocked" column shows also processes that have objects "paging". 
> Most likely you are *short* on memory.  In order to relieve the pressure 
> program .text pages are free'ed and need to be refetched from disc 
> whenever the respective code is being executed.

'k, but shouldn't the OS be doing any swapping, if this was the case?  I'm 
getting <1M of swappage when the blocked pages are really high ...

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email . scrappy at hub.org                              MSN . scrappy at hub.org
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