Hi Can you find the new process's name by getting the ps ax command or Stop the crond and see what happens Regards John ----- Original Message ----- From: "Howard Rifkin" <howard.rifkin@hp.com> To: <linux-lvm@redhat.com> Sent: Thursday, May 26, 2005 5:20 PM Subject: Daemon or Thread with 5 minute interval > I have been working on a project that analyzes "noise" in Linux clusters > running large parallel jobs. Where noise is caused by daemons or kernel > threads periodically waking up and slowing down a process of a parallel > job enough so that is misses a rendezvous with the other processes and > so slows down the entire job. Using an internal tool I have been able to > track down several daemons that have been a large source of noise but, > after turning them all off I am left with a large noise spike that > occurs every 5 minutes. I have tried turning off most of the most common > daemons such as cron, ntp, syslog, ect. but, I am still left with this > spike. Not being a kernel expert myself I have not been able to > experiment with kernel threads. So, my question is does anyone know of a > kernel thread or daemon in the 2.4 kernel that wakes up every 5 minutes? > > Thanks > > Howard > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
