[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: ext2fs kernel profiling: most of the time in thread management
|
From: |
Samuel Thibault |
|
Subject: |
Re: ext2fs kernel profiling: most of the time in thread management |
|
Date: |
Fri, 30 Dec 2011 12:49:04 +0100 |
|
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Jérémie Koenig, le Fri 30 Dec 2011 12:46:39 +0100, a écrit :
> On Thu, Dec 29, 2011 at 1:25 AM, Samuel Thibault
> <samuel.thibault@gnu.org> wrote:
> > [...], but I believe it's still a bit revealing: I had already noticed
> > that ext2fs spends most of its time in the kernel (like 90%), and it
> > here seems we're spending a lot of time just managing the ext2fs thread
> > sleeps (no, there aren't many threads in that test, just two dozen).
>
> Could thread migration [1] maybe help with this?
>
> [1] http://www.brynosaurus.com/pub/os/thread-migrate.pdf
I was wondering, yes.
Samuel