On Thu, 2005-02-03 at 11:29 +0100, Terje FÃberg wrote: > I recently upgraded my desktop from 2.4.28 to > 2.6.10. Even under moderate memory pressure kswapd > regularly eats almost all available cpu time > whenever there is a little more IO throughput, > like copying large files. The system is extremely > sluggish during this. The system load goes up to > 7.5 or more. > > This is a Pentium3-866 with 768MB RAM, 2x1GB > swap partitions, vanilla 2.6.10. The strange > behaviour starts at about 200 MB of swap in use. > 2.4.28 masters the same workload without any > problems. > > vmstat: > procs -----------memory---------- > r b swpd free buff cache > 6 1 428012 4868 33236 347184 > ---swap-- -----io---- --system-- ----cpu---- > si so bi bo in cs us sy id wa > 10 7 147 120 108 111 19 10 68 3 > > Is there anything I can do to track this down? >
Can you post about 10 seconds of `vmstat 1` output while this is happening? Also: `cat /proc/vmstat > pre ; sleep 10 ; cat /proc/vmstat > post` while this is happening, and send the pre and post files. cat /proc/meminfo also might be helpful. And compile a kernel with "magic sysrq" support, and get a couple of Alt+SysRq+M dumps (the output will be in dmesg). Thanks, Nick - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
