This is a pretty serious performance issue. I've attached a patch against the original debian package to incorporate the Ingo Molnar fix (see Antonio above). It has great effect on system usage during iperf runs
[EMAIL PROTECTED]:~/tmp$ time iperf -V -c ping.lrz-muenchen.de ------------------------------------------------------------ Client connecting to ping.lrz-muenchen.de, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 3] local 2001:4ca0:0:f000:211:43ff:fe7e:3a76 port 39596 connected with 2001:4ca0:0:101:250:56ff:fea9:56a1 port 5001 [ 3] 0.0-10.0 sec 1.03 GBytes 886 Mbits/sec real 0m10.007s user 0m2.244s sys 0m13.769s [System is very unresponsive during the test and iperf uses up to 180% cpu according to top] [EMAIL PROTECTED]:~/tmp$ sudo dpkg -i iperf_2.0.2-3.1_i386.deb (Lese Datenbank ... 102562 Dateien und Verzeichnisse sind derzeit installiert.) Vorbereiten zum Ersetzen von iperf 2.0.2-3 (durch iperf_2.0.2-3.1_i386.deb) ... Entpacke Ersatz für iperf ... Richte iperf ein (2.0.2-3.1) ... [EMAIL PROTECTED]:~/tmp$ time iperf -V -c ping.lrz-muenchen.de ------------------------------------------------------------ Client connecting to ping.lrz-muenchen.de, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 3] local 2001:4ca0:0:f000:211:43ff:fe7e:3a76 port 46070 connected with 2001:4ca0:0:101:250:56ff:fea9:56a1 port 5001 [ 3] 0.0-10.0 sec 1.06 GBytes 914 Mbits/sec real 0m10.040s user 0m0.120s sys 0m4.748s System is responsive, about 30% CPU usage All of that on Ubuntu hardy. It would be highly appreciated if the Debian bug could be monitored and the bugfix be backported or integrated by Ubuntu before the hardy release. ** Bug watch added: Debian Bug tracker #444277 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=444277 ** Also affects: iperf (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=444277 Importance: Unknown Status: Unknown -- Thread library bug for kernel >= 2.6.21 https://bugs.launchpad.net/bugs/156748 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
