From: Andreas Schwab <schwab@suse.de>
To: linux-ia64@vger.kernel.org
Subject: Re: Reading /proc/stat is slooow
Date: Mon, 05 Dec 2005 23:46:42 +0000 [thread overview]
Message-ID: <jebqzv85ul.fsf@sykes.suse.de> (raw)
In-Reply-To: <je1x0v4cpy.fsf@sykes.suse.de>
"Luck, Tony" <tony.luck@intel.com> writes:
> On Fri, Dec 02, 2005 at 06:42:49PM +0100, Andreas Schwab wrote:
>> At some point after 2.6.13 reading /proc/stat has become too slow. This
>> is most visible with xosview, which spends up to 80% in kernel space. I
>> have attached a simple program that you can run with "strace -r" to see
Actually I meant to use "strace -T", which displays the time spent _in_
the syscall.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2005-12-05 23:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-02 17:42 Reading /proc/stat is slooow Andreas Schwab
2005-12-05 22:21 ` Luck, Tony
2005-12-05 23:36 ` Andreas Schwab
2005-12-05 23:46 ` Andreas Schwab [this message]
2005-12-06 0:19 ` Luck, Tony
2005-12-06 1:21 ` Luck, Tony
2005-12-06 6:15 ` Luck, Tony
2005-12-06 9:24 ` Zou, Nanhai
2005-12-06 16:58 ` Luck, Tony
2005-12-06 17:10 ` Andreas Schwab
2005-12-07 19:54 ` [PATCH] Drop per-irq counters from /proc/stat (Was: Reading /proc/stat is slooow) Luck, Tony
2005-12-06 9:57 ` Reading /proc/stat is slooow Andreas Schwab
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