linux-kernel - Re: [PATCH] perf_events: proposed fix for broken intr throttling (v2)

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Message-ID: <1326099318.2442.39.camel@twins>
Date:	Mon, 09 Jan 2012 09:55:18 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, gleb@...hat.com, mingo@...e.hu,
	asharma@...com, vince@...ter.net, wcohen@...hat.com
Subject: Re: [PATCH] perf_events: proposed fix for broken intr throttling
 (v2)

On Sun, 2012-01-08 at 00:11 +0100, Stephane Eranian wrote:
> I'll look into that one. But at first glance, it does not address the issue
> of adjusting the period at each timer tick. Only multiplexing (rotation) should
> happen at the multiplier rate.

Correct, it only pokes at the throttle stuff. For the freq stuff we can
remain using the nr_freq count to see if we need the iteration.

But yeah, I think that separation you did makes sense.
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