From: Dimitri Sivanich <sivanich@sgi.com>
To: Chris Mason <mason@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
"Paul E. McKenney" <paulmck@us.ibm.com>,
Dipankar Sarma <dipankar@in.ibm.com>,
okir@suse.de
Subject: Re: [PATCH] Enable remote RCU callback processing on SMP systems
Date: Wed, 22 Feb 2006 16:00:37 -0600 [thread overview]
Message-ID: <20060222220037.GC3734@sgi.com> (raw)
In-Reply-To: <200602221523.23739.mason@suse.de>
On Wed, Feb 22, 2006 at 03:23:22PM -0500, Chris Mason wrote:
> Aside from the possible race we talked about in __rcu_process_callbacks, I
> don't have huge objections here. But if the underlying problem is the cost
> of kmem_cache_free, would it be better to limit that instead of trying to
> push the latency around to specific cpus?
The current problem is the cost of kmem_cache_free. What this
patch will do (versus limiting the cost of kmem_cache_free, if
that's at all possible) is to protect the cpus configured as
such against other costly sections of code that may be lurking
or that might be added in the future.
next prev parent reply other threads:[~2006-02-22 22:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-06 14:51 [PATCH] Enable remote RCU callback processing on SMP systems Dimitri Sivanich
2006-02-22 20:23 ` Chris Mason
2006-02-22 22:00 ` Dimitri Sivanich [this message]
2006-02-22 23:56 ` Chris Mason
-- strict thread matches above, loose matches on Subject: below --
2006-01-26 20:38 Dimitri Sivanich
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