From: Andrew Morton <akpm@osdl.org>
To: Konstantin Kletschke <lists@ku-gbr.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: How do klogd and syslogd influence code execution timing?
Date: Fri, 10 Dec 2004 16:26:23 -0800 [thread overview]
Message-ID: <20041210162623.1c749f58.akpm@osdl.org> (raw)
In-Reply-To: <20041210152107.GA23594@synertronixx3>
Konstantin Kletschke <lists@ku-gbr.de> wrote:
>
> It is absolutely _required_ that we start syslogd and klogd before
> inserting the storage device.
The difference is that if klogd is running, a printk() will cause a wakeup
to be delivered to klogd in release_console_sem(). That will cause the CPU
to go into the scheduler code, take and release locks, take more time, etc.
next prev parent reply other threads:[~2004-12-11 0:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-10 15:21 How do klogd and syslogd influence code execution timing? Konstantin Kletschke
2004-12-11 0:26 ` Andrew Morton [this message]
2004-12-11 18:09 ` Konstantin Kletschke
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