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Message-ID: <20150520065736.GI3644@twins.programming.kicks-ass.net> Date: Wed, 20 May 2015 08:57:36 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Sarbojit Ganguly <ganguly.s@...sung.com> Cc: Arnd Bergmann <arnd@...db.de>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com" <mingo@...hat.com>, "hpa@...or.com" <hpa@...or.com>, "Waiman.Long@...com" <Waiman.Long@...com>, "raghavendra.kt@...ux.vnet.ibm.com" <raghavendra.kt@...ux.vnet.ibm.com>, "oleg@...hat.com" <oleg@...hat.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, SHARAN ALLUR <sharan.allur@...sung.com>, "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>, VIKRAM MUPPARTHI <vikram.m@...sung.com>, SUNEEL KUMAR SURIMANI <suneel@...sung.com> Subject: Re: Re: [RFC] arm: Add for atomic half word exchange On Wed, May 20, 2015 at 05:09:34AM +0000, Sarbojit Ganguly wrote: > Yes, the main advantage of Qspinlock code can be observed in NUMA but > when I tested in an embedded system, a slight advantage was observed. OK, great! This is the first !x86 port I'm aware of and a load-store arch at that, so its good to hear our efforts at making it generic actually paid off. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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