From: Michael Schnell <mschnell@lumino.de>
To: linux-kernel@vger.kernel.org
Subject: Re: [RFC] Userspace RCU: (ab)using futexes to save cpu cycles and energy
Date: Mon, 28 Sep 2009 13:01:56 +0200 [thread overview]
Message-ID: <4AC097A4.9070903@lumino.de> (raw)
In-Reply-To: <4AC06187.2050806@lumino.de>
Michael Schnell wrote:
> Why is that different ?
It might be that (different from a sema), a FUTEX can only be unlocked
by the process that locked it.
But then why should FUTEX offer advantages over sema, if in that
application the FUTEX is supposed to block with a system call, anyway ?
-Michael
next prev parent reply other threads:[~2009-09-28 11:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 17:48 [RFC] Userspace RCU: (ab)using futexes to save cpu cycles and energy Mathieu Desnoyers
2009-09-23 18:04 ` Chris Friesen
2009-09-23 19:03 ` Mathieu Desnoyers
2009-09-23 22:32 ` Mathieu Desnoyers
2009-09-23 23:12 ` Chris Friesen
2009-09-23 23:28 ` Mathieu Desnoyers
2009-09-26 7:05 ` Mathieu Desnoyers
2009-09-28 7:11 ` Michael Schnell
2009-09-28 10:58 ` Michael Schnell
2009-09-28 11:01 ` Michael Schnell [this message]
2009-10-01 14:40 ` Paul E. McKenney
2009-10-04 14:37 ` Mathieu Desnoyers
2009-10-04 20:36 ` Paul E. McKenney
2009-10-04 21:12 ` Mathieu Desnoyers
[not found] ` <4AC99D55.8000102@lumino.de>
[not found] ` <20091005125533.GA1857@Krystal>
2009-10-05 13:22 ` Mathieu Desnoyers
2009-10-05 22:21 ` Mathieu Desnoyers
2009-10-07 7:22 ` Michael Schnell
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