From: Theodore Ts'o <tytso@mit.edu>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Michal Hocko <mhocko@suse.cz>,
cgroups@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Sha Zhengju <handai.szj@gmail.com>,
devel@openvz.org
Subject: Re: [PATCH RFC] fsio: filesystem io accounting cgroup
Date: Tue, 9 Jul 2013 11:39:08 -0400 [thread overview]
Message-ID: <20130709153907.GA17972@thunk.org> (raw)
In-Reply-To: <20130708100046.14417.12932.stgit@zurg>
Another major problem with this concept is that it lumps all I/O's
into a single cgroup. So I/O's from pseudo filesystems (such as
reading from /sys/kernel/debug/tracing/trace_pipe), networked file
systems such as NFS, and I/O to various different block devices all
get counted in a single per-cgroup limit.
This doesn't seem terribly useful to me. Network resources and block
resources are quite different, and counting pseudo file systems and
ram disks makes no sense at all.
Regards,
- Ted
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next prev parent reply other threads:[~2013-07-09 15:39 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-08 10:01 [PATCH RFC] fsio: filesystem io accounting cgroup Konstantin Khlebnikov
2013-07-08 17:00 ` Tejun Heo
2013-07-08 17:52 ` Vivek Goyal
2013-07-08 17:56 ` Tejun Heo
2013-07-09 8:28 ` Konstantin Khlebnikov
2013-07-09 12:57 ` Tejun Heo
2013-07-09 13:15 ` Konstantin Khlebnikov
2013-07-09 13:16 ` Tejun Heo
2013-07-09 13:16 ` Tejun Heo
2013-07-09 13:43 ` Konstantin Khlebnikov
2013-07-09 13:45 ` Tejun Heo
2013-07-09 14:18 ` Vivek Goyal
2013-07-09 14:29 ` Tejun Heo
2013-07-09 14:54 ` Vivek Goyal
2013-07-09 15:08 ` Tejun Heo
[not found] ` <20130710030955.GA3569@redhat.com>
2013-07-10 3:50 ` Tejun Heo
2013-07-09 14:35 ` Konstantin Khlebnikov
2013-07-09 14:42 ` Tejun Heo
2013-07-09 15:06 ` Vivek Goyal
2013-07-09 17:42 ` Konstantin Khlebnikov
2013-07-09 18:35 ` Vivek Goyal
2013-07-09 20:54 ` Konstantin Khlebnikov
2013-07-08 18:11 ` Vivek Goyal
2013-07-09 15:39 ` Theodore Ts'o [this message]
2013-07-09 17:12 ` Konstantin Khlebnikov
-- strict thread matches above, loose matches on Subject: below --
2013-07-08 9:59 Konstantin Khlebnikov
2013-07-10 4:43 ` Sha Zhengju
2013-07-10 6:03 ` Konstantin Khlebnikov
2013-07-10 8:37 ` Sha Zhengju
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