From: Paul Menage <menage@google.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Benjamin Blum <bblum@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, akpm@linux-foundation.org,
serue@us.ibm.com
Subject: Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large
Date: Mon, 13 Jul 2009 20:50:33 -0700 [thread overview]
Message-ID: <6599ad830907132050n226aecb3ucab6746a4d0e81fa@mail.gmail.com> (raw)
In-Reply-To: <20090714084950.2401d9a6.kamezawa.hiroyu@jp.fujitsu.com>
On Mon, Jul 13, 2009 at 4:49 PM, KAMEZAWA
Hiroyuki<kamezawa.hiroyu@jp.fujitsu.com> wrote:
> IIUC, this place, .../procs interface is not so important for performance
> as to being allowed this ugly conding.
>
It's not just the calling thread that suffers from the overhead -
we've seen performance hits on other processes on a machine due to the
TLB-shootdown overhead associated with vmalloc()/vfree().
Paul
next prev parent reply other threads:[~2009-07-14 3:50 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-10 23:01 [PATCH v2 0/3] CGroups: cgroup member list enhancement/fix Ben Blum
2009-07-10 23:01 ` [PATCH 1/3] Adds a read-only "procs" file similar to "tasks" that shows only unique tgids Ben Blum
2009-07-13 3:46 ` Li Zefan
2009-07-13 15:25 ` Benjamin Blum
2009-07-14 18:34 ` Dave Hansen
2009-07-14 21:26 ` Benjamin Blum
2009-07-14 21:49 ` Dave Hansen
2009-07-14 22:55 ` Benjamin Blum
2009-07-15 1:31 ` Li Zefan
2009-07-10 23:02 ` [PATCH 2/3] Ensures correct concurrent opening/reading of pidlists across pid namespaces Ben Blum
2009-07-11 21:59 ` Serge E. Hallyn
2009-07-10 23:02 ` [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large Ben Blum
2009-07-13 3:03 ` Li Zefan
2009-07-13 6:03 ` KAMEZAWA Hiroyuki
2009-07-13 15:27 ` Benjamin Blum
2009-07-13 23:49 ` KAMEZAWA Hiroyuki
2009-07-14 3:50 ` Paul Menage [this message]
2009-07-14 3:53 ` KAMEZAWA Hiroyuki
2009-07-14 4:04 ` Paul Menage
2009-07-14 4:25 ` KAMEZAWA Hiroyuki
2009-07-14 17:26 ` Benjamin Blum
2009-07-14 17:28 ` Paul Menage
2009-07-14 17:47 ` Dave Hansen
2009-07-14 17:50 ` Paul Menage
2009-07-14 21:30 ` Benjamin Blum
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