Re: -mm merge plans for 2.6.23

From: Ingo Molnar
Date: Wed Jul 25 2007 - 04:16:29 EST



* Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:

> > > And yet despite my repeated pleas, none of those people has yet
> > > spent a bit of time with me to help analyse what is happening.
> >
> > btw., it might help to give specific, precise instructions about
> > what people should do to help you analyze this problem.
>
> Ray has been the first one to offer (thank you), and yes I have asked
> him for precise details of info to collect to hopefully work out what
> is happening with his first problem.

do you mean this paragraph:

| I guess /proc/meminfo, /proc/zoneinfo, /proc/vmstat, /proc/slabinfo
| before and after the updatedb run with the latest kernel would be a
| first step. top and vmstat output during the run wouldn't hurt either.

correct? Does "latest kernel" mean v2.6.22.1, or does it have to be
v2.6.23-rc1? I guess v2.6.22.1 would be fine as this is a VM problem,
not a scheduling problem.

the following script will gather all the above information for a 10
seconds interval:

http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh

Ray, please run this script before the updatedb run, once during the
updatedb run and once after the updatedb run, and send Nick the 3 files
it creates. (feel free to Cc: me too)

Ingo
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