Bug 282624

Summary:	KTorrent needs 100% cpu
Product:	[Applications] ktorrent	Reporter:	Christoph Feck <cfeck>
Component:	general	Assignee:	Joris Guisson <joris.guisson>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Unlisted Binaries
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Christoph Feck 2011-09-23 15:32:22 UTC

Since a day or two, KTorrent/libktorrent from master consumes 100% cpu, even when all downloads are stalled.

Comment 1 Joris Guisson 2011-09-24 10:04:51 UTC

Could you run ktorrent under perf ?

perf record /usr/bin/ktorrent --nofork

A file named perf.data will be generated, post that here.

Comment 2 Christoph Feck 2011-09-24 11:45:35 UTC

Letting ktorrent run for 1 minute with five torrents running, all stalled:

http://skulpture.maxiom.de/playground/perf.data.xz

Comment 3 Joris Guisson 2011-09-25 15:12:00 UTC

Could you run perf report -i perf.data ?

I don't have the same versions of libraries as you, so running that on my system gives me rather useless results.

Comment 4 Joris Guisson 2011-10-06 17:33:27 UTC

Git commit e3f22c5a9a9fc0a71ef4be21da4a0b293d95123f by Joris Guisson.
Committed on 06/10/2011 at 19:32.
Pushed by guisson into branch 'master'.

Fix bug causing 100% CPU usage in the packet sending code when there are no upload limits

BUG: 282624

M  +1    -1    src/download/packet.cpp

http://commits.kde.org/libktorrent/e3f22c5a9a9fc0a71ef4be21da4a0b293d95123f