From: Tejun Heo <tj@kernel.org>
To: Theodore Ts'o <tytso@mit.edu>
Cc: Artem Bityutskiy <dedekind1@gmail.com>,
axboe@kernel.dk, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, lizefan@huawei.com,
cgroups@vger.kernel.org, hannes@cmpxchg.org, kernel-team@fb.com,
adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org
Subject: Re: [PATCH 2/2] ext4: implement cgroup writeback support
Date: Wed, 23 Sep 2015 13:57:23 -0400 [thread overview]
Message-ID: <20150923175723.GC26647@mtj.duckdns.org> (raw)
In-Reply-To: <20150923170238.GG3318@thunk.org>
Hello, Ted.
On Wed, Sep 23, 2015 at 01:02:38PM -0400, Theodore Ts'o wrote:
> Also note this performance regression reported by Dexuan Cui
>
> https://lkml.org/lkml/2015/9/23/333
>
> I didn't notice these problems since I my userspace doesn't enable the
> writeback cgroup. (In fact I don't know how to do it using Debian
> Jessie.)
The thing is I don't think they're either.
> Tejun, can you please take a look at this and give me a
> recommendation? I'm willing to wait a day or two while we try to fix
> the problem, but past that point I'd like to have a fix or revert this
> commit before Linus releases the next -rc release.
Yeap, looking at them both. Will update as soon as I know more.
Thanks.
--
tejun
next prev parent reply other threads:[~2015-09-23 17:57 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-16 22:53 [PATCHSET v2 block/for-4.2/writeback] ext4: implement cgroup writeback support Tejun Heo
2015-06-16 22:53 ` [PATCH 1/2] ext4: replace ext4_io_submit->io_op with ->io_wbc Tejun Heo
[not found] ` <1434495193-31182-2-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-07-22 3:56 ` Theodore Ts'o
2015-06-16 22:53 ` [PATCH 2/2] ext4: implement cgroup writeback support Tejun Heo
[not found] ` <1434495193-31182-3-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-07-22 3:56 ` Theodore Ts'o
2015-09-23 12:49 ` Artem Bityutskiy
2015-09-23 13:50 ` Artem Bityutskiy
2015-09-23 17:02 ` Theodore Ts'o
2015-09-23 17:57 ` Tejun Heo [this message]
2015-09-23 17:25 ` Chris Mason
[not found] ` <CAF4G-tKEcnVw76-ZU77AjmBDGybLnNEOKjkJtYBN67es0wb30g@mail.gmail.com>
2015-09-23 17:53 ` Chris Mason
2015-09-23 18:24 ` Theodore Ts'o
[not found] ` <CAF4G-t+E89a_A3RzQYB9wXxqE6nM0t7wN6fNmLABZ70=ivHTRQ@mail.gmail.com>
[not found] ` <CAF4G-t+E89a_A3RzQYB9wXxqE6nM0t7wN6fNmLABZ70=ivHTRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-23 19:47 ` Artem Bityutskiy
2015-09-23 20:48 ` Theodore Ts'o
2015-09-24 8:13 ` Artem Bityutskiy
[not found] ` <CAF4G-tKEcnVw76-ZU77AjmBDGybLnNEOKjkJtYBN67es0wb30g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-23 19:03 ` Tejun Heo
[not found] ` <1443012552.19983.209.camel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-09-23 18:09 ` Tejun Heo
[not found] ` <20150923180934.GE26647-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2015-09-23 18:51 ` Tejun Heo
2015-09-23 21:07 ` [PATCH cgroup/for-4.3-fixes] cgroup, writeback: don't enable cgroup writeback on traditional hierarchies Tejun Heo
2015-09-24 8:09 ` Artem Bityutskiy
[not found] ` <1443082186.19983.234.camel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-09-24 8:40 ` Dexuan Cui
[not found] ` <d6cf09f352a84b8d811da55fbc64a869-NHRYisGuqk8ni+flWUsx/pbBmlrREI7+ECdVDZe1NQc@public.gmane.org>
2015-09-24 20:47 ` Tejun Heo
2015-09-28 21:39 ` Tejun Heo
2015-09-24 20:45 ` Tejun Heo
2015-09-25 6:49 ` Artem Bityutskiy
[not found] ` <1443163749.19983.254.camel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-09-25 10:50 ` Artem Bityutskiy
2015-09-25 15:49 ` Tejun Heo
2015-09-26 8:06 ` Artem Bityutskiy
2015-09-26 22:14 ` Tejun Heo
[not found] ` <20150926221413.GI3572-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2015-09-29 11:37 ` Artem Bityutskiy
2015-09-29 14:26 ` Tejun Heo
[not found] ` <20150923210729.GA23180-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2015-09-24 16:17 ` Jens Axboe
2015-09-24 20:48 ` Tejun Heo
2015-07-12 18:05 ` [PATCHSET v2 block/for-4.2/writeback] ext4: implement cgroup writeback support Tejun Heo
[not found] ` <20150712180520.GE18734-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2015-07-16 19:40 ` Tejun Heo
2015-07-16 23:21 ` Dave Chinner
2015-07-16 23:37 ` Tejun Heo
2015-07-17 1:37 ` Theodore Ts'o
2015-07-17 15:20 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2015-06-12 22:02 [PATCHSET " Tejun Heo
2015-06-12 22:02 ` [PATCH 2/2] " Tejun Heo
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