Messages in this thread | | | Date | Thu, 24 Jun 2004 18:44:16 +0800 | From | Yusuf Goolamabbas <> | Subject | Re: finish_task_switch high in profiles in 2.6.7 |
| |
> How many context switches do you get in vmstat?
Mentioned in a subsequent message
http://marc.theaimsgroup.com/?l=linux-kernel&m=108806991921498&w=2
> Most likely you just have far too many of them. readprofile will attribute > most of the cost to finish_task_switch, because that one reenables the > interrupts (and the profiling only works with interrupts on) > > Too many context switches are usually caused by user space.
Hmm, Is there a way to determine which syscall would be the culprit. I guess this is where something like DTrace would be invaluable
http://www.sun.com/bigadmin/content/dtrace/
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |