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From: "Theodore Ts'o" <tytso@mit.edu>
To: Su Yue <damenly.su@gmail.com>
Cc: "Darrick J. Wong" <djwong@kernel.org>, fstests@vger.kernel.org
Subject: Re: [PATCH] generic: test which tries to exercise AIO/DIO into unwritten space
Date: Wed, 3 Mar 2021 15:02:00 -0500	[thread overview]
Message-ID: <YD/rONmSSOgDV644@mit.edu> (raw)
In-Reply-To: <CABnRu57hdKav3Mi8vQYeowZrQtFToMSzK23h4H2DuqGL0Dea2A@mail.gmail.com>

On Tue, Mar 02, 2021 at 11:20:06AM +0800, Su Yue wrote:
> But both xfs and ext4 100% fail in v5.12-rc1 with 4k block size and 4k page
> size on x86_64. The test itself should be okay because btrfs passes.
> xfstests-dev version is 8cbc48b460b6 applied this patch. logs are attached.

Hmm, interesting.  Thanks for the report.  I've been running most of
my tests on a GCE VVM (using gce-xfstests) with a 100GB PD-SSD as the
storage device.  I just tried, and it's passing now reliably on both
4k and 1k for me, both on v5.11 and v5.12-rc1.  (Previously it was
failing about 30% of the time on the ext4/1k test scenario, and was
passing 100% on ext4/4k.)

Given your report, I tried running it using KVM (with a NVME ssd as
the back-end storage device), and it's failing 80% of the time using
the 4k block size.

So previously I had assumed that it was passing consistently on with
ext4/4k, but it looks like that it's very much dependent on the
performance of the TEST_DEV.

					- Ted

  parent reply	other threads:[~2021-03-04  0:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-10 20:58 [PATCH] generic: test which tries to exercise AIO/DIO into unwritten space Theodore Ts'o
2021-03-01 17:02 ` Theodore Ts'o
2021-03-01 17:14 ` Darrick J. Wong
2021-03-01 18:04   ` Theodore Ts'o
     [not found]     ` <CABnRu57hdKav3Mi8vQYeowZrQtFToMSzK23h4H2DuqGL0Dea2A@mail.gmail.com>
2021-03-02  3:33       ` Darrick J. Wong
2021-03-02  4:25         ` Su Yue
2021-03-03 20:02       ` Theodore Ts'o [this message]
2021-03-07 16:24 ` Eryu Guan
2021-03-07 23:11   ` Theodore Ts'o
2021-03-08  1:22     ` [PATCH -v2] " Theodore Ts'o
2021-03-15 21:10       ` Darrick J. Wong

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