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Date:	Tue, 29 Dec 2009 11:49:14 +0100
From:	Stijn Devriendt <>
To:	Xiao Guangrong <>
Cc:	Ingo Molnar <>,
	Frederic Weisbecker <>,
	Thomas Gleixner <>,
	Peter Zijlstra <>,
	Steven Rostedt <>,
	Paul Mackerras <>,
	LKML <>
Subject: Re: [PATCH v3 1/5] perf_event: introduce 'inject' event and get HZ

> 'inject' event is a very useful feature and it's suggested by Ingo
> [ See ]

Is it possible to, instead of injecting a specific inject_event enum,
pass a type/config pair (+task/cpu?) to inject the value of that
specific event? Then the HZ could have it's own perf_event type.

This integrates better with what I'm struggling with right now:
counters that are not ever incrementing but rather indicate
a discrete value inside the kernel that might change both
up and down. My dynticks knowledge is rather limited but
if HZ might vary then this approach is definately worth it.

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