[Click] PollDevice takes kclick to 99.9% CPU
adam.greenhalgh@googlemail.com
a.greenhalgh at cs.ucl.ac.uk
Thu May 20 13:33:29 EDT 2010
Yes, click is running in the kernel idle loop continually polling for packets. It should yield though.
Adam
-original message-
Subject: [Click] PollDevice takes kclick to 99.9% CPU
From: "Peter Dedecker" <Peter.Dedecker at intec.ugent.be>
Date: 20/05/2010 17:32
Hi all,
Is it a normal behaviour that using a simple script with PollDevice,
count, bandwidthshaper and toDevice, results in a 99.9% CPU usage of the
kclick thread, even when no packets are sent or recieved?
I use the 1.8.0 version of click with a 2.6.24.7 patched kernel and
patched e1000e driver on PCI-E cards. I couldn't get the current click
snapshot compiled.
Thanks a lot.
Kind Regards,
Peter
--
ir. Peter Dedecker
Department of Information Technology
Broadband Communication Networks (IBCN)
Ghent University - IBBT
Gaston Crommenlaan 8 (Bus 201), B-9050 Gent, Belgium
M: +32 486152320
T: +32 9 33 14946 ; T Secr: +32 9 33 14900
F: +32 9 33 14899
E: Peter.Dedecker at intec.UGent.be
W : www.ibcn.intec.UGent.be
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