From: Steven Rostedt <srostedt@redhat.com>
To: Tej <bewith.tej@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ring-buffer: Kernel threads cpu utilization.
Date: Fri, 03 Jul 2009 09:06:00 -0400 [thread overview]
Message-ID: <1246626360.21331.2.camel@localhost.localdomain> (raw)
In-Reply-To: <f1c9d250907022306j4ea1eb3g47101bd4a9528f61@mail.gmail.com>
On Fri, 2009-07-03 at 11:36 +0530, Tej wrote:
> rb_producer and rb_comsumer, kernel thread uses lot of CPU (~100%)
> bandwidth every 10s.
>
> bisection results commit:
> [5092dbc96f3acdac5433b27c06860352dc6d23b9] ring-buffer: add benchmark and tester
> I have read commit logs:
> git log -r 5092dbc96f3acdac5433b27c06860352dc6d23b9
>
> Is it correct behavior for these thread to consume this much cpu
> bandwidth even if someone selects rb benchmarks config options?
Yes, that's a benchmark module, not something to be running on a
production system. It consumes a lot of CPU time, because it is running
a constant benchmark, and tests.
-- Steve
prev parent reply other threads:[~2009-07-03 13:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-03 6:06 Tej
2009-07-03 13:06 ` Steven Rostedt [this message]
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