From: Andrew Morton <akpm@linux-foundation.org>
To: Fabian Frederick <fabf@skynet.be>
Cc: linux-kernel@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-doc@vger.kernel.org
Subject: Re: [PATCH 1/1 linux-next RESEND] task IO accounting: add conditional read/write counters
Date: Tue, 3 Mar 2015 14:04:33 -0800 [thread overview]
Message-ID: <20150303140433.87a0b7232b6ebc39a00d6704@linux-foundation.org> (raw)
In-Reply-To: <1425413796-2203-1-git-send-email-fabf@skynet.be>
On Tue, 3 Mar 2015 21:16:35 +0100 Fabian Frederick <fabf@skynet.be> wrote:
> This patch adds syscre and syscwe respectively effective read/write
> syscall counters. We already had syscr/syscw which were
> unconditionally incremented. Doing the difference between those
> variables could give interesting statistics.
I don't think that "could give interesting statistics" is sufficient
justification for adding overhead and extending the Linux userspace
interface.
More specificity would help, including real-worldish use cases which
demonstrate the value.
prev parent reply other threads:[~2015-03-03 22:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-03 20:16 Fabian Frederick
2015-03-03 22:04 ` Andrew Morton [this message]
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