From: Dimitri Sivanich <sivanich@sgi.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, Andi Kleen <ak@suse.de>
Subject: Re: [PATCH] Migration of standard timers
Date: Fri, 15 Sep 2006 11:58:10 -0500 [thread overview]
Message-ID: <20060915165810.GA3832@sgi.com> (raw)
In-Reply-To: <1158338360.5724.442.camel@localhost.localdomain>
On Fri, Sep 15, 2006 at 06:39:19PM +0200, Thomas Gleixner wrote:
> Are you trying to work around the latencies caused by long running timer
> callbacks ? I'm not convinced that this is not curing the symptoms
> instead of the root cause.
Yes, both latency from long running timer callbacks as well as
potential latency from a temporal grouping of timer callbacks
(those occuring on the same tick).
While I agree that root causes of the former should be addressed,
more latencies of this type can always easily creep in. Timer
migration works as a long term preventative aid, not just a fix
for the problem of the moment. And adding this needn't restrict
anyone from looking at the aforementioned root causes.
next prev parent reply other threads:[~2006-09-15 16:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-14 13:29 [PATCH] Migration of standard timers Dimitri Sivanich
2006-09-14 14:11 ` Jes Sorensen
2006-09-14 14:30 ` Dimitri Sivanich
2006-09-15 6:06 ` Andrew Morton
2006-09-15 16:39 ` Thomas Gleixner
2006-09-15 16:58 ` Dimitri Sivanich [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-09-19 15:29 [PATCH] Migration of Standard Timers Dimitri Sivanich
2006-09-19 16:33 ` Lee Revell
2006-09-19 16:41 ` Dimitri Sivanich
2006-09-19 16:57 ` Lee Revell
2006-09-22 19:16 ` Andrew Morton
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