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From: Peter Zijlstra <peterz@infradead.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ingo Molnar <mingo@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Tejun Heo <tj@kernel.org>, Suren Baghdasaryan <surenb@google.com>,
	Daniel Drake <drake@endlessm.com>,
	Vinayak Menon <vinmenon@codeaurora.org>,
	Christopher Lameter <cl@linux.com>,
	Peter Enderborg <peter.enderborg@sony.com>,
	Shakeel Butt <shakeelb@google.com>,
	Mike Galbraith <efault@gmx.de>,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH 0/9] psi: pressure stall information for CPU, memory, and IO v4
Date: Fri, 7 Sep 2018 09:46:42 +0200	[thread overview]
Message-ID: <20180907074642.GN24106@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20180905214303.GA30178@cmpxchg.org>

On Wed, Sep 05, 2018 at 05:43:03PM -0400, Johannes Weiner wrote:
> On Tue, Aug 28, 2018 at 01:22:49PM -0400, Johannes Weiner wrote:
> > This version 4 of the PSI series incorporates feedback from Peter and
> > fixes two races in the lockless aggregator that Suren found in his
> > testing and which caused the sample calculation to sometimes underflow
> > and record bogusly large samples; details at the bottom of this email.
> 
> Peter, do the changes from v3 look sane to you?

I'll go have a look.

  parent reply	other threads:[~2018-09-07  7:47 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-28 17:22 [PATCH 0/9] psi: pressure stall information for CPU, memory, and IO v4 Johannes Weiner
2018-08-28 17:22 ` [PATCH 1/9] mm: workingset: don't drop refault information prematurely Johannes Weiner
2018-08-28 17:22 ` [PATCH 2/9] mm: workingset: tell cache transitions from workingset thrashing Johannes Weiner
2018-08-28 17:22 ` [PATCH 3/9] delayacct: track delays from thrashing cache pages Johannes Weiner
2018-08-28 17:22 ` [PATCH 4/9] sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD Johannes Weiner
2018-09-12 23:28   ` Andrew Morton
2018-09-13  1:49     ` Johannes Weiner
2018-08-28 17:22 ` [PATCH 5/9] sched: loadavg: make calc_load_n() public Johannes Weiner
2018-08-28 17:22 ` [PATCH 6/9] sched: sched.h: make rq locking and clock functions available in stats.h Johannes Weiner
2018-08-28 17:22 ` [PATCH 7/9] sched: introduce this_rq_lock_irq() Johannes Weiner
2018-08-28 17:22 ` [PATCH 8/9] psi: pressure stall information for CPU, memory, and IO Johannes Weiner
2018-08-28 20:11   ` Randy Dunlap
2018-08-28 20:56     ` Johannes Weiner
2018-08-28 21:30       ` Randy Dunlap
2018-09-07 10:16   ` Peter Zijlstra
2018-09-07 10:21     ` Peter Zijlstra
2018-09-07 14:44     ` Johannes Weiner
2018-09-07 14:58       ` Peter Zijlstra
2018-09-07 17:50         ` Johannes Weiner
2018-09-07 10:24   ` Peter Zijlstra
2018-09-07 14:54     ` Johannes Weiner
2018-08-28 17:22 ` [PATCH 9/9] psi: cgroup support Johannes Weiner
2018-09-05 21:43 ` [PATCH 0/9] psi: pressure stall information for CPU, memory, and IO v4 Johannes Weiner
2018-09-07  7:36   ` Daniel Drake
2018-09-07  7:46   ` Peter Zijlstra [this message]
2018-09-07 11:04   ` Peter Zijlstra
2018-09-07 15:09     ` Johannes Weiner
2018-09-07 15:58       ` Suren Baghdasaryan
2018-09-17  5:22         ` Daniel Drake
2018-09-18 15:53           ` Suren Baghdasaryan
2018-09-25 22:05             ` Suren Baghdasaryan
2018-09-17 13:29         ` peter enderborg
2018-09-17 13:29           ` peter enderborg
2018-09-17 13:40           ` Peter Zijlstra
2018-09-18 16:03           ` Suren Baghdasaryan
2018-10-19  2:07 ` Andrew Morton
2018-10-23 17:29   ` Johannes Weiner
2018-10-23 17:41     ` Peter Zijlstra

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