From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:54857) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UceQJ-0007ey-Km for qemu-devel@nongnu.org; Wed, 15 May 2013 12:19:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UceQI-00027w-F4 for qemu-devel@nongnu.org; Wed, 15 May 2013 12:19:27 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33688) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UceQI-00027q-7n for qemu-devel@nongnu.org; Wed, 15 May 2013 12:19:26 -0400 Message-ID: <5193B583.5070108@redhat.com> Date: Wed, 15 May 2013 18:19:15 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1368632937-32272-1-git-send-email-pbonzini@redhat.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH 00/12] RCU implementation for QEMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Jan Kiszka , David Gibson , qemu-devel@nongnu.org, qemulist@gmail.com Il 15/05/2013 18:16, Peter Maydell ha scritto: > On 15 May 2013 16:48, Paolo Bonzini wrote: >> Giving a shot to rcutorture on a weak memory-model machine (PPC) >> would be nice. > > # ./tests/rcutorture 16 rperf 2 > n_reads: 116103000 n_updates: 0 nreaders: 16 nupdaters: 0 duration: 2 > ns/read: 275.617 ns/update: nan > > ...that "nan" isn't entirely reassuring :-) > > Other than that, I gave it a few runs and it seemed OK, but it > would be helpful if you could give some command lines that would > constitute a usefully thorough test process. "tests/rcutorture 10 stress 10" is a pretty good test. Here it gives something like this: n_reads: 30374101 n_updates: 232950 n_mberror: 0 rcu_stress_count: 30028631 345470 0 0 0 0 0 0 0 0 0 It will abort if something goes wrong. Paolo