From: David Miller <davem@davemloft.net>
To: jkaluza@redhat.com
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
eparis@redhat.com, rgb@redhat.com, tj@kernel.org,
lizefan@huawei.com, containers@lists.linux-foundation.org,
cgroups@vger.kernel.org, viro@zeniv.linux.org.uk
Subject: Re: [PATCH v4 0/3] Send audit/procinfo/cgroup data in socket-level control message
Date: Wed, 15 Jan 2014 12:17:30 -0800 (PST) [thread overview]
Message-ID: <20140115.121730.1984913330507219167.davem@davemloft.net> (raw)
In-Reply-To: <1389600109-30739-1-git-send-email-jkaluza@redhat.com>
From: Jan Kaluza <jkaluza@redhat.com>
Date: Mon, 13 Jan 2014 09:01:46 +0100
> Changes introduced in this patchset can also increase performance
> of such server-like processes, because current way of opening and
> parsing /proc/$PID/* files is much more expensive than receiving these
> metadata using SCM.
The problem with this line of reasoning is that these changes will
hurt everyone else, because these new control messages are sent
unconditionally, whether the application is interested in them or not.
I really don't like this cost tradeoff, it's terrible, and therefore
I'm really not inclined to apply these patches, sorry.
next prev parent reply other threads:[~2014-01-15 20:17 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-27 14:39 [PATCH " Jan Kaluza
2013-08-27 14:39 ` [PATCH 1/3] Send loginuid and sessionid in SCM_AUDIT Jan Kaluza
2013-08-27 14:39 ` [PATCH 2/3] Send comm and cmdline in SCM_PROCINFO Jan Kaluza
2013-09-09 6:52 ` Eric W. Biederman
2013-08-27 14:40 ` [PATCH 3/3] Send cgroup_path in SCM_CGROUP Jan Kaluza
2013-08-28 14:00 ` Tejun Heo
2013-08-29 14:13 ` [PATCH v2 0/3] Send audit/procinfo/cgroup data in socket-level control message Jan Kaluza
2013-08-29 14:13 ` [PATCH v2 1/3] Send loginuid and sessionid in SCM_AUDIT Jan Kaluza
2013-08-29 14:13 ` [PATCH v2 2/3] Send comm and cmdline in SCM_PROCINFO Jan Kaluza
2013-08-29 14:13 ` [PATCH v2 3/3] Send cgroup_path in SCM_CGROUP Jan Kaluza
2013-09-02 17:17 ` Kay Sievers
2013-09-04 6:14 ` [PATCH v3 0/3] Send audit/procinfo/cgroup data in socket-level control message Jan Kaluza
2013-09-04 6:14 ` [PATCH v3 1/3] Send loginuid and sessionid in SCM_AUDIT Jan Kaluza
2013-09-04 7:22 ` Eric W. Biederman
2013-09-04 9:07 ` Jan Kaluža
2013-09-04 6:14 ` [PATCH v3 2/3] Send comm and cmdline in SCM_PROCINFO Jan Kaluza
2013-09-04 6:14 ` [PATCH v3 3/3] Send cgroup_path in SCM_CGROUP Jan Kaluza
2013-09-04 7:42 ` [PATCH v3 0/3] Send audit/procinfo/cgroup data in socket-level control message Eric W. Biederman
2013-09-04 14:45 ` Tejun Heo
2013-09-04 14:58 ` Richard Guy Briggs
2013-09-04 15:04 ` Jan Kaluža
2013-09-04 15:20 ` Richard Guy Briggs
2013-09-04 15:30 ` Eric Dumazet
2013-09-04 15:40 ` Jan Kaluža
2014-01-13 8:01 ` [PATCH v4 " Jan Kaluza
2014-01-13 8:01 ` [PATCH v4 1/3] Send loginuid and sessionid in SCM_AUDIT Jan Kaluza
2014-01-15 4:02 ` Richard Guy Briggs
2014-01-13 8:01 ` [PATCH v4 2/3] Send comm and cmdline in SCM_PROCINFO Jan Kaluza
2014-01-15 4:03 ` Richard Guy Briggs
2014-01-13 8:01 ` [PATCH v4 3/3] Send cgroup_path in SCM_CGROUP Jan Kaluza
2014-01-13 16:52 ` Tejun Heo
2014-01-13 16:55 ` [PATCH v4 0/3] Send audit/procinfo/cgroup data in socket-level control message Tejun Heo
2014-01-13 19:44 ` Casey Schaufler
2014-01-14 8:25 ` Jan Kaluža
2014-01-15 20:17 ` David Miller [this message]
2014-01-15 23:21 ` Eric Paris
2014-01-15 23:23 ` Tejun Heo
2014-01-16 9:29 ` Jan Kaluža
2014-01-23 19:31 ` Kay Sievers
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