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Re: [pcp] pcp updates

To: kenj@xxxxxxxxxxxxxxxx
Subject: Re: [pcp] pcp updates
From: Nathan Scott <nathans@xxxxxxxxxx>
Date: Tue, 22 Jun 2010 21:40:21 +1000 (EST)
Cc: pcp@xxxxxxxxxxx
In-reply-to: <1277155127.8158.39.camel@xxxxxxxxxxxxxxxx>
----- "Ken McDonell" <kenj@xxxxxxxxxxxxxxxx> wrote:

> OK, dropping mem.slabinfo.objects.total from the kernel/summary-linux
> group reduces the daily log size on my desktop (with a 15sec logging
> interval, so 4 times the default) to 19 Mbytes, 11 of which are still
> the kernel/summary-linux group.
> 
> Looks like the mem.util.* group is the next candidate for a diet ...
> is
> there a subset of the 50 metrics in there that are _really_ useful in
> your production environment?

Yeah, can definately be culled.  Will look into coming up
with a subset.

> Also in the filesys/summary group we're logging 
>         filesys.full
>         filesys.used
>         filesys.free
>         filesys.avail           # for Linux
> 
> which seems a bit over the top ... I'd guess that the only
> information
> really worth logging in a summary group ("on" for everyone by
> default)
> would be filesys.full ... so we can either trim the filesys/summary

Hmm, not so sure ... full (percentage) is not as useful as having
capacity and space used - capacity can be logged infrequently (perhaps
once a day), and with those two we can calculate full (%) and free.

cheers.

-- 
Nathan

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