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Date:   Mon, 14 May 2018 20:15:50 +0000
From:   Christopher Lameter <cl@linux.com>
To:     Johannes Weiner <hannes@cmpxchg.org>
cc:     linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        linux-block@vger.kernel.org, cgroups@vger.kernel.org,
        Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
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        Tejun Heo <tj@kernel.org>,
        Balbir Singh <bsingharora@gmail.com>,
        Mike Galbraith <efault@gmx.de>,
        Oliver Yang <yangoliver@me.com>,
        Shakeel Butt <shakeelb@google.com>,
        xxx xxx <x.qendo@gmail.com>,
        Taras Kondratiuk <takondra@cisco.com>,
        Daniel Walker <danielwa@cisco.com>,
        Vinayak Menon <vinmenon@codeaurora.org>,
        Ruslan Ruslichenko <rruslich@cisco.com>, kernel-team@fb.com
Subject: Re: [PATCH 0/7] psi: pressure stall information for CPU, memory,
 and IO
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On Mon, 14 May 2018, Johannes Weiner wrote:

> Since I'm using the same model and infrastructure for memory and IO
> load as well, IMO it makes more sense to present them in a coherent
> interface instead of trying to retrofit and change the loadavg file,
> which might not even be possible.

Well I keep looking at the loadavg output from numerous tools and then in
my mind I divide by the number of processors, guess if any of the threads
would be doing I/O and if I cannot figure that out groan and run "vmstat"
for awhile to figure that out.

Lets have some numbers there that make more sense please.