linux-kernel - Re: [PATCH 10/13] perf kvm: add live mode

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Message-ID: <20130510080829.GA6700@gmail.com>
Date:	Fri, 10 May 2013 10:08:29 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	David Ahern <dsahern@...il.com>
Cc:	linux-kernel@...r.kernel.org, acme@...stprotocols.net,
	fweisbec@...il.com, peterz@...radead.org, jolsa@...hat.com,
	namhyung@...nel.org, xiaoguangrong@...ux.vnet.ibm.com
Subject: Re: [PATCH 10/13] perf kvm: add live mode


* David Ahern <dsahern@...il.com> wrote:

> >2)
> >
> >Another suggestion: it would be nice to allow a "--repeat <n>" option as
> >well, for a limited number of iterations - similar to what the 'top' tool
> >allows:
> >
> >   top -b -d <delay> -n <iterations>
> >
> >--repeat 0 means infinite repeats, --repeat 1 means a single step.
> 
> Missed that option in perf-top. Let me take a look at it.

-n and -b is a regular /usr/bin/top feature, not perf-top feature :-)

perf-top has no such option AFAICS - but it could be added there as well. 
Regular perf-stat has a --repeat option and it's very useful there.

Thanks,

	Ingo
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