From: Christoph Hellwig <hch@infradead.org>
To: Amir Goldstein <amir73il@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Dave Chinner <david@fromorbit.com>,
eguan@redhat.com, fstests <fstests@vger.kernel.org>
Subject: Re: [PATCH 2/2] fstests: run xfs_io as multi threaded process
Date: Sat, 15 Oct 2016 10:04:41 -0700 [thread overview]
Message-ID: <20161015170441.GA23090@infradead.org> (raw)
In-Reply-To: <CAOQ4uxhunx5QtWYoSwWrq_FR3hso-GPekKRjCTC_Epc8g3Ld0A@mail.gmail.com>
On Sat, Oct 15, 2016 at 06:13:29PM +0300, Amir Goldstein wrote:
> I can't say that I have made a statistics analysis of the affect of the flag
> on xfstests runtime, but for the -g quick group on small SSD partition,
> I did not observe any noticable difference in runtime.
>
> I will try to run some micro benchmarks or look for specific tests that
> do many file opens and little io, to get more performance numbers.
Yes, if there is no effect at least that's not a problem. I'd just want
confirmation for that. In the end we probably don't use xfs_io heavily
parallel on the same fd a lot.
next prev parent reply other threads:[~2016-10-15 17:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 20:43 [PATCH 1/2] fstests: fix call sites that used xfs_io directly Amir Goldstein
2016-10-14 20:43 ` [PATCH 2/2] fstests: run xfs_io as multi threaded process Amir Goldstein
2016-10-15 9:11 ` Christoph Hellwig
2016-10-15 15:13 ` Amir Goldstein
2016-10-15 17:04 ` Christoph Hellwig [this message]
2016-10-15 20:59 ` Amir Goldstein
2016-10-16 7:14 ` Christoph Hellwig
2016-10-16 8:51 ` Amir Goldstein
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