From: Waiman Long <waiman.long@hp.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, Jason Low <jason.low2@hp.com>,
paulmck@linux.vnet.ibm.com, torvalds@linux-foundation.org,
tglx@linutronix.de, riel@redhat.com, davidlohr@hp.com,
hpa@zytor.com, andi@firstfloor.org, aswin@hp.com,
scott.norton@hp.com, chegu_vinod@hp.com
Subject: Re: [PATCH 0/8] locking/core patches
Date: Tue, 11 Feb 2014 16:37:23 -0500 [thread overview]
Message-ID: <52FA9813.7020003@hp.com> (raw)
In-Reply-To: <20140211085743.GJ27965@twins.programming.kicks-ass.net>
On 02/11/2014 03:57 AM, Peter Zijlstra wrote:
> On Tue, Feb 11, 2014 at 09:45:02AM +0100, Ingo Molnar wrote:
>>> heh, yes, it's stupid how long many benchmarks take. Ditch it. A
>>> change like this should be testable with a 30-line microbenchmark
>>> which runs in 5 seconds tops.
>> Another very nice option would be to stick the relevant workload
>> patterns into 'perf bench', calibrate it to emit similar figures (and
>> double check the speedup is similar as well) and thus make it an AIM7
>> work-alike microbenchmark.
> /me stares at Jason and Waiman.. :-)
It shouldn't be too hard to get the mutex exercising portion of AIM7
into perf. I will discuss with Jason about this when we finish some of
the high-priority tasks we currently have.
-Longman
next prev parent reply other threads:[~2014-02-11 21:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 19:58 [PATCH 0/8] locking/core patches Peter Zijlstra
2014-02-10 19:58 ` [PATCH 1/8] locking: Move mcs_spinlock.h into kernel/locking/ Peter Zijlstra
2014-02-10 19:58 ` [PATCH 2/8] mutex: In mutex_can_spin_on_owner(), return false if task need_resched() Peter Zijlstra
2014-02-10 21:02 ` Peter Zijlstra
2014-02-10 19:58 ` [PATCH 3/8] mutex: Modify the way optimistic spinners are queued Peter Zijlstra
2014-02-11 1:33 ` Jason Low
2014-02-11 7:20 ` Peter Zijlstra
2014-02-10 19:58 ` [PATCH 4/8] mutex: Unlock the mutex without the wait_lock Peter Zijlstra
2014-02-10 19:58 ` [PATCH 5/8] locking, mutex: Cancelable MCS lock for adaptive spinning Peter Zijlstra
2014-02-10 21:15 ` Jason Low
2014-02-10 21:32 ` Peter Zijlstra
2014-02-10 22:04 ` Jason Low
2014-02-11 9:18 ` Peter Zijlstra
2014-02-11 9:38 ` Ingo Molnar
2014-02-25 19:56 ` Jason Low
2014-02-26 9:22 ` Peter Zijlstra
2014-02-26 17:45 ` Jason Low
2014-02-10 19:58 ` [PATCH 6/8] mutex: Extra reschedule point Peter Zijlstra
2014-02-10 22:59 ` Andrew Morton
2014-02-10 19:58 ` [PATCH 7/8] locking: Introduce qrwlock Peter Zijlstra
2014-02-11 18:17 ` Waiman Long
2014-02-11 20:12 ` Waiman Long
2014-02-13 16:35 ` Peter Zijlstra
2014-02-13 17:26 ` Peter Zijlstra
2014-02-14 19:01 ` Waiman Long
2014-02-14 18:48 ` Waiman Long
2014-02-10 19:58 ` [PATCH 8/8] x86,locking: Enable qrwlock Peter Zijlstra
2014-02-10 23:02 ` [PATCH 0/8] locking/core patches Andrew Morton
2014-02-11 7:17 ` Peter Zijlstra
2014-02-11 8:03 ` Andrew Morton
2014-02-11 8:45 ` Ingo Molnar
2014-02-11 8:57 ` Peter Zijlstra
2014-02-11 21:37 ` Waiman Long [this message]
2014-02-25 19:26 ` Jason Low
2014-02-26 21:40 ` Paul E. McKenney
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