linux-kernel - msleep_interruptible vs msleep

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Message-ID: <44FC7EAE.6020300@free.fr>
Date:	Mon, 04 Sep 2006 21:29:50 +0200
From:	matthieu castet <castet.matthieu@...e.fr>
To:	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: msleep_interruptible vs msleep

Hi,

What's the difference between msleep_interruptible and msleep ?
If I understand correctly the main difference between msleep and 
msleep_interruptible is that msleep_interruptible can return if there is 
a pending signal ?

But why if I have a kernel thread that do [1] :

while (true) {
Do some stuff
msleep(1000)
}

the load average is high (near 100%).

and if I use msleep_interruptible the load average is normal.

Does the same applies to wait_event_timeout vs 
wait_event_interruptible_timeout ?

Thanks,

Matthieu CASTET
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