linux-kernel - Re: [PATCH] hwlat_detector: Detect hardware-induced latencies

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Message-ID: <552682A4.4000309@osadl.org>
Date:	Thu, 09 Apr 2015 15:46:12 +0200
From:	Carsten Emde <C.Emde@...dl.org>
To:	Daniel Wagner <daniel.wagner@...-carit.de>
CC:	Steven Rostedt <rostedt@...dmis.org>,
	linux-rt-users@...r.kernel.org, Jon Masters <jcm@...hat.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hwlat_detector: Detect hardware-induced latencies

Hi Daniel,

> BTW, are you also taking care of the latency-hist.patch patch?
I do.

However, the request (and the challenge) is not to simply rewrite the 
code. The idea is to provide a general histogram framework that can be 
used from anywhere in the kernel and to equip it with everything needed 
by the existing histograms. This framework should no longer be part of 
the RT patches but submitted directly to mainline Linux. In a second 
step, we will then rewrite the existing histogram code to use the new 
framework.

Any help is greatly appreciated!

	-Carsten.
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