From: Dave Jones <davej@redhat.com>
To: Brandon Philips <brandon.philips@coreos.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
linux-mm@kvack.org, Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Bad rss-counter is back on 3.14-stable
Date: Wed, 4 Jun 2014 18:22:50 -0400 [thread overview]
Message-ID: <20140604222250.GA12927@redhat.com> (raw)
In-Reply-To: <CAD2oYtOJbBLrjX9bnNQ5PQnWVdr7ggf=VZWVP3b_KPOPChjd9Q@mail.gmail.com>
On Wed, Jun 04, 2014 at 12:35:45PM -0700, Brandon Philips wrote:
> On Wed, Jun 4, 2014 at 12:12 PM, Dave Jones <davej@redhat.com> wrote:
> > Brandon, what kind of workload is that machine doing ? I wonder if I can
> > add something to trinity to make it provoke it.
>
> A really boring database workload (fsync() ~50ms) with a sloowww block
> device with btrfs. There are occasional CPU spikes due to expensive
> queries.
>
> How can I be more helpful in my workload description?
I feared it would be something like a database. Trying to replicate
things seen under those workloads always seems to be challenging,
in part due to the system specific setups they seem to have.
I wonder if any of the benchmarking apps we have do a realistic
representation of what modern databases do. It might be a fun project
to take something like that and extend it to do random queries.
Dave
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next prev parent reply other threads:[~2014-06-04 22:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-04 18:27 Bad rss-counter is back on 3.14-stable Greg KH
2014-06-04 18:47 ` Dennis Mungai
2014-06-04 19:12 ` Dave Jones
2014-06-04 19:35 ` Brandon Philips
2014-06-04 22:22 ` Dave Jones [this message]
2014-06-04 23:37 ` Andre Tomt
2014-06-05 0:21 ` Greg KH
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