From: Peter Zijlstra <peterz@infradead.org>
To: Dave Jones <davej@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: trinity finds ftrace/perf bug. Film at 11.
Date: Mon, 16 Sep 2013 11:37:19 +0200 [thread overview]
Message-ID: <20130916093719.GR21832@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20130913141638.GA6799@redhat.com>
On Fri, Sep 13, 2013 at 10:16:38AM -0400, Dave Jones wrote:
> without the diff, it'll use all kinds of fds. this diff hardwires it to just use
> fd's from perf_event_open. I'll hack up a command line switch to do this in a better
> way at some point.
>
> Dave
>
>
> diff --git a/fds.c b/fds.c
> index cc1ca6d..f48c95e 100644
> --- a/fds.c
> +++ b/fds.c
> @@ -119,6 +119,8 @@ static int get_new_random_fd(void)
> retry:
> i = rand() % 6;
>
> + i = 3;
> +
> if (do_specific_proto == TRUE)
> i = 1;
I'm just not having much luck it seems, even after actually enabling
list debugging (D0H).
What kind of hardware are you running this on?
next prev parent reply other threads:[~2013-09-16 9:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-11 13:54 trinity finds ftrace/perf bug. Film at 11 Dave Jones
2013-09-12 18:19 ` Steven Rostedt
2013-09-12 18:38 ` Dave Jones
2013-10-03 15:44 ` Peter Zijlstra
2013-10-03 16:57 ` Ingo Molnar
2013-09-13 10:56 ` Peter Zijlstra
2013-09-13 14:16 ` Dave Jones
2013-09-16 9:37 ` Peter Zijlstra [this message]
2013-09-16 10:25 ` Ingo Molnar
2013-09-16 10:43 ` Peter Zijlstra
2013-09-16 16:45 ` Dave Jones
2013-09-16 16:44 ` Dave Jones
2013-09-18 11:34 ` Peter Zijlstra
2013-09-18 13:22 ` Dave Jones
2013-09-13 14:32 ` Steven Rostedt
2013-09-13 14:58 ` Peter Zijlstra
2013-09-13 11:14 ` Peter Zijlstra
2013-09-13 14:28 ` Dave Jones
2013-09-13 14:58 ` Peter Zijlstra
2013-11-19 19:18 ` [tip:perf/urgent] perf: Remove fragile swevent hlist optimization tip-bot for Peter Zijlstra
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