From: Olaf Titz <olaf@bigred.inka.de>
To: linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] tracing: Print nasty banner when trace_printk() is in use
Date: Fri, 30 May 2014 08:07:13 +0200 [thread overview]
Message-ID: <E1WqFyD-0005jp-76@bigred.inka.de> (raw)
In-Reply-To: <20140528134120.3328605e@gandalf.local.home>
> *********************************************************
> ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
Is it really that bad to warrant this kind of warning? Not knowing
about the issue at all, I read from the original description that the
wastage is four pages of memory times number of CPU cores, which
shouldn't matter much except for small embedded systems.
Or does this something much scarier, like considerably slowing down
fast paths?
Olaf
prev parent reply other threads:[~2014-05-30 6:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-28 17:14 Steven Rostedt
2014-05-28 17:22 ` Peter Zijlstra
2014-05-28 17:37 ` Steven Rostedt
2014-05-28 17:26 ` Borislav Petkov
2014-05-28 17:41 ` Steven Rostedt
2014-05-30 6:07 ` Olaf Titz [this message]
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