From: Fengguang Wu <wfg@mail.ustc.edu.cn>
To: John Berthels <jjberthels@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>,
Andrew Morton <akpm@linux-foundation.org>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Denys Vlasenko <vda.linux@googlemail.com>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [PATCH][RESEND] maps: PSS(proportional set size) accounting in smaps
Date: Wed, 19 Sep 2007 16:56:25 +0800 [thread overview]
Message-ID: <390192188.07822@ustc.edu.cn> (raw)
Message-ID: <20070919085625.GA5910@mail.ustc.edu.cn> (raw)
In-Reply-To: <57d8e7a0709190137v3d90d8e4r40eb254b657e9a94@mail.gmail.com>
On Wed, Sep 19, 2007 at 09:37:21AM +0100, John Berthels wrote:
[...]
> Also exmap (I don't know if pagemap does this) grovels through ELF and
> /proc/<pid>/maps so you can see which section+symbol of your shared
> lib is hurting you. You're generally going to want this info in order
> to do anything about bad PSS numbers, so I'm not sure raw PSS numbers
> are directly useful.
Basically,
- getting the list of used/unused symbols are great for developers;
- getting the list of applications with their PSS numbers are good for users.
One is for 'analysis' and another is about 'accounting'.
> Is map2 -mm tree only (I didn't get anything on a grep of mainline
> 2.6.22.6)? Sorry, I'm a bit out of touch. If I could drop the kernel
> module from exmap and use an existing interface that would be great.
Yes.
It could be the right time for an early tryout and early feedbacks ;-)
Fengguang
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next prev parent reply other threads:[~2007-09-19 8:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 2:40 [PATCH][RESEND] maps: PSS(proportional set size) accounting in smaps Fengguang Wu
2007-09-17 2:40 ` Fengguang Wu
2007-09-17 6:51 ` Andrew Morton
2007-09-17 7:08 ` Userspace tools (was Re: [PATCH][RESEND] maps: PSS(proportional set size) accounting in smaps) Balbir Singh
2007-09-17 9:00 ` Christoph Hellwig
2007-09-17 9:11 ` Balbir Singh
2007-09-17 9:15 ` Christoph Hellwig
2007-09-17 12:29 ` Userspace tools Karel Zak
2007-09-17 9:13 ` Userspace tools (was Re: [PATCH][RESEND] maps: PSS(proportional set size) accounting in smaps) Andrew Morton
2007-09-17 7:21 ` [PATCH][RESEND] maps: PSS(proportional set size) accounting in smaps Fengguang Wu
2007-09-17 7:21 ` Fengguang Wu
2007-09-17 16:10 ` Matt Mackall
2007-09-17 17:49 ` Denys Vlasenko
2007-09-19 8:37 ` John Berthels
2007-09-19 8:56 ` Fengguang Wu [this message]
2007-09-19 8:56 ` Fengguang Wu
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