From: Lee Revell <rlrevell@joe-job.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Eric Dumazet <dada1@cosmosbay.com>,
dipankar@in.ibm.com, paulmck@us.ibm.com,
linux-kernel <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: RCU latency regression in 2.6.16-rc1
Date: Sun, 29 Jan 2006 03:21:41 -0500 [thread overview]
Message-ID: <1138522902.2799.111.camel@mindpipe> (raw)
In-Reply-To: <20060129075144.GA15056@elte.hu>
On Sun, 2006-01-29 at 08:51 +0100, Ingo Molnar wrote:
>
> well, softirq preemption is not really a drastic step - its biggest
> problem is that it cannot be included in v2.6.16 ;-) But i agree that
> if a solution can be found to break up a latency path, that is
> preferred.
>
Agreed. It's only drastic in the context of my target (meeting a 1ms
soft RT constraint) as this happens to be the one of the only code paths
getting in the way. Also I'd like to be able to go down to 1ms without
requiring a custom kernel config...
Lee
next prev parent reply other threads:[~2006-01-29 8:21 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-24 7:52 RCU latency regression in 2.6.16-rc1 Lee Revell
2006-01-24 7:56 ` Ingo Molnar
2006-01-24 7:58 ` Lee Revell
2006-01-24 8:01 ` Ingo Molnar
2006-01-24 8:03 ` Lee Revell
2006-01-24 8:11 ` Ingo Molnar
2006-01-24 8:07 ` Lee Revell
2006-01-24 8:13 ` Ingo Molnar
2006-01-24 8:15 ` Lee Revell
2006-01-24 9:17 ` Paul E. McKenney
2006-01-24 9:23 ` Ingo Molnar
2006-01-24 9:44 ` Lee Revell
2006-01-24 16:28 ` Dipankar Sarma
2006-01-24 21:38 ` Dipankar Sarma
2006-01-25 21:28 ` Lee Revell
2006-01-25 22:56 ` Ingo Molnar
2006-01-25 23:13 ` Lee Revell
2006-01-26 19:18 ` Paul E. McKenney
2006-01-27 18:55 ` Lee Revell
2006-01-28 17:03 ` Dipankar Sarma
2006-01-28 18:00 ` Lee Revell
2006-01-28 18:51 ` Lee Revell
2006-01-28 19:34 ` Dipankar Sarma
2006-01-28 19:46 ` Lee Revell
2006-01-28 19:52 ` Eric Dumazet
2006-01-29 7:38 ` Lee Revell
2006-01-29 7:51 ` Ingo Molnar
2006-01-29 8:21 ` Lee Revell [this message]
2006-01-30 4:36 ` Paul E. McKenney
2006-01-30 4:55 ` Eric Dumazet
2006-01-30 5:11 ` Paul E. McKenney
2006-01-30 5:52 ` David S. Miller
2006-01-30 10:00 ` Paul E. McKenney
2006-02-12 0:45 ` Lee Revell
2006-01-24 16:57 ` Dipankar Sarma
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