linux-kernel - Re: [PATCH] port jRCU from 3.3 to 3.4

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Message-ID: <m2vcjp87mf.fsf@firstfloor.org>
Date:	Mon, 21 May 2012 15:57:44 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Joe Korty <joe.korty@...r.com>
Cc:	stasn77@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] port jRCU from 3.3 to 3.4

Joe Korty <joe.korty@...r.com> writes:
> + *
> + * jRCU assumes that the frames are large enough that architecture barrier
> + * operations performed in one frame have fully completed by the start of
> + * the next.  This period is presumed to be in the tens of microseconds, so
> + * it may not be wise to run jRCU at a frame rate under 100 usecs.

This sounds like a very dangerous assumption.

-Andi

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