linux-kernel - Re: [RT LATENCY] 249 microsecond latency caused by slub's unfreeze

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Message-ID: <0000013da2ce20f8-0e3a64ef-67ed-4ab4-9f20-b77980c876c3-000000@email.amazonses.com>
Date:	Mon, 25 Mar 2013 18:27:30 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Clark Williams <clark@...hat.com>
Subject: Re: [RT LATENCY] 249 microsecond latency caused by slub's
 unfreeze_partials() code.

On Mon, 25 Mar 2013, Steven Rostedt wrote:

> If this makes it more deterministic, and lower worse case latencies,
> then it's definitely worth the price.

Yes that would make it more deterministic. Maybe I should add an option
to be able to compile the allocator without cpu partial page support?

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