Robert C. Noland III wrote: > On Wed, 2005-08-10 at 12:00 +0100, Gavin Atkinson wrote: > >>On Tue, 2005-08-09 at 19:35 -0400, Robert C. Noland III wrote: >> >>>Since stepping up to 6-current just prior to releng_6 and now on >>>7-current, the %cpu consumed by system as reported by systat -vmstat and >>>top seems incredibly high. I have all of the debugging options turned >>>off in the kernel, as well as: >>> >>>it rarely ever goes below 10%, and frequently is 25 - 50% and is >>>generally significantly higher than user % >>> >>>#top -S >>> >>>last pid: 23808; load averages: 0.55, 0.55, 0.54 up 0+01:46:06 19:34:24 >>>138 processes: 3 running, 111 sleeping, 24 waiting >>>CPU states: 3.1% user, 0.0% nice, 16.0% system, 0.8% interrupt, 80.1% idle >> >>I am also seeing this one one of my systems (a laptop) running 6. For >>me, the effect only starts after it has been running for a while, >>usually between 8 and 24 hours. Do you also see this, or is it >>continuous for you? The only cure I have found is to reboot the >>machine. > > > > No, my issue is persistent. Even single user sys consumes between .8 > and 2.5%. It's possible that you have interrupt storm due to the ACPI issues or due to the some incompatibility with your hardware. Try to run systat -vm and check if any of the devices generates large number of interrupts (more than 1,000). -MaximReceived on Wed Aug 10 2005 - 12:40:58 UTC
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