From: Denis Vlasenko <vda@ilport.com.ua>
To: Alexander Gran <alex@zodiac.dnsalias.org>,
"E.Gryaznova" <grev@namesys.com>
Cc: reiserfs-dev <reiserfs-dev@namesys.com>, linux-kernel@vger.kernel.org
Subject: Re: Fw: 2.6.11-rc5-mm1: reiser4 eating cpu time
Date: Tue, 15 Mar 2005 08:57:36 +0200 [thread overview]
Message-ID: <200503150857.37419.vda@ilport.com.ua> (raw)
In-Reply-To: <200503131424.33498@zodiac.zodiac.dnsalias.org>
On Sunday 13 March 2005 15:24, Alexander Gran wrote:
> Hi,
>
> Well, of course it cannot handle that large files (I wouldn't expect that,
> either). My Problem is that when I open the file, it's not just kwrite but
> other processes that need so much cpu time. That kwrite is eating cpu is ok.
> I cannot reproduce the behaviour for some reason however.
> So for short what's now (2.6.11-mm3) hapening:
> I open a file of 150MB with kwrite. Kwrite start using all cpu it can get
> After some seconds pdflush kicks in. Kwrite seems to wait, and pdflush is
> eating cpu cyles. These 2 alternate for some time, until file is loaded.
I bet kwrite does something silly.
Use strace -tt to find out whether kwrite spends that much CPU
by doing zillions of syscalls or not.
--
vda
next prev parent reply other threads:[~2005-03-15 6:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050303184456.534aedb6.akpm@osdl.org>
[not found] ` <4230582F.2050503@namesys.com>
2005-03-13 13:24 ` Alexander Gran
2005-03-13 13:44 ` Fredrik Tolf
2005-03-13 13:55 ` Alexander Gran
2005-03-15 6:57 ` Denis Vlasenko [this message]
2005-03-16 12:56 ` Alexander Gran
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