linux-kernel - [BUG] perf top: --stdio causes continuous refresh

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Message-ID: <CABPqkBSkSbWvdRu3iEtNvHhfV4J4sALHvdd40hZTcGxLe576yQ@mail.gmail.com>
Date:	Wed, 5 Feb 2014 22:25:09 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>
Subject: [BUG] perf top: --stdio causes continuous refresh

Hi,

If you run perf top on 3.14 but you force --stdio mode, perf top
goes crazy and constantly refreshes the output.

It does that with many older versions of the perf as well on 3.14.
It runs fine with newt mode.

Works fine with my 3.11 kernel. So something must be broken
with 3.14.

Can you reproduce the problem as well?
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