linux-kernel - Re: [PATCH v3 1/5] perf_event: introduce 'inject' event and get HZ

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Date:	Wed, 30 Dec 2009 10:19:46 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Paul Mackerras <paulus@...ba.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/5] perf_event: introduce 'inject' event and get HZ

On Tue, 2009-12-29 at 13:21 +0800, Xiao Guangrong wrote:
> 'inject' event is a very useful feature and it's suggested by Ingo
> [ See http://lkml.org/lkml/2009/12/28/31 ]

I really dislike the name, event injection to me would be like a write()
interface where you provide the actual event data to be stuffed in the
output stream.

This just seems like a very weird way of getting data out. A kind of
like sysconf() but done very strange.

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