linux-kernel - Re: perf events over (net) console?

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Date:	Thu, 09 Sep 2010 13:35:42 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Harald Gustafsson <hgu1972@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Harald Gustafsson <harald.gustafsson@...csson.com>,
	Song Yuan <song.yuan@...csson.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: perf events over (net) console?

On Thu, 2010-09-09 at 13:29 +0200, Frederic Weisbecker wrote:
> But if we bring the splice support,

Even simply write() from the mmap() buffer isn't terribly expensive. But
yeah, once we fix splice not to always copy that could be even better.

Splice() is on the todo list, but it needs significant user-interface
work and I'm rather busy..
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