----- "Ken McDonell" <kenj@xxxxxxxxxxxxxxxx> wrote:
> I think this is me done.
>
> Nathan, is the slabinfo metric spec you sent me correct? I do not see
> a dentry_cache instance ...
>
> pminfo -f mem.slabinfo.objects.total | grep dentry
> inst [63 or "dentry"] value 114660
Its correct for the kernels in RHEL4 and RHEL5 ... (which are up to
2.6.18+rhel-patchfest). Looks like that cache was renamed in some
kernel since then though.
> If we turn on the kernel/summary-linux group (as is done at the
> moment
> in this commit) there are 64 metrics here, and on my lame laptop this
> group dominates the daily archive size with 12 Mbytes ... I think
> that
> may be too big for something that is going to be enabled by default.
*nod*. Theres scope for trimming there (all slab info would be a start,
side-stepping the dentry cache name issue)
> Check the pmda directories and the pmlogconf man page to see how new
> components can plug into this new infrastructure.
>
> This is all new, and so there is a lot of guessing going on here ...
> please let me know if you have suggestions for improving the metric
> coverage, the probe predicates or the default state assignments.
Great, thanks Ken!
cheers.
--
Nathan
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