linux-kernel - Re: ipc,sem: sysv semaphore scalability

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Message-ID: <CA+i8gKJ5VrrOt-K3aCBHE9zjvDAebVnOzGaeZQPnEzp--w-Khw@mail.gmail.com>
Date:	Mon, 1 Apr 2013 00:02:34 +0700
From:	Emmanuel Benisty <benisty.e@...il.com>
To:	Davidlohr Bueso <davidlohr.bueso@...com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...riel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	hhuang@...hat.com, "Low, Jason" <jason.low2@...com>,
	Michel Lespinasse <walken@...gle.com>,
	Larry Woodman <lwoodman@...hat.com>,
	"Vinod, Chegu" <chegu_vinod@...com>,
	Peter Hurley <peter@...leysoftware.com>
Subject: Re: ipc,sem: sysv semaphore scalability

Hi Davidlohr,

On Sun, Mar 31, 2013 at 12:01 PM, Davidlohr Bueso
<davidlohr.bueso@...com> wrote:
> Specially dropping the rcu read lock before the continue statement
> (sorry for not mentioning this in the last email).

I was missing this indeed, thanks. Still the same issues however...
I'll do some more testing on the same machine but with a totally
different environment, within tomorrow hopefully.
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