At 10:05 PM 5/19/2009, bob dolet wrote: >Thanks for the reply gary i appreciate it. I did state that i am not running >ntp, i was in the past but figured it was causing issues, so it has not been >used for quite some time. Also, i am not currently running a tickless >kernel, but i have experienced this issue on tickless and "ticked" kernels. >I just dont understand why a system reboot seems to resolve the issue for a >day or two, considering there is nothing substantial running on the machine >outside of ssh, screen and game servers.
Here's what could be causing your "spikes" - TSC sync issues (newer linux attempts to keep the tsc's timestamps sync'd up) - CPU Speed / CPU Idle in the kernel - Speedstep in the BIOS - Other types of power management - CPU errata - Ethernet cable errors (CRCs) - Services running like irqbalance - SMI interrupts firing off and consuming the bus for a few hundred ms/uS - "ACPI Processor" enabled - Tickless kernel - Dynamic ticks - Buggy kernel If it doesn't happen on a stock kernel, and happens on a newer one, perhaps it's a bug in the kernel. You should always turn off the power management options as they can cause problems with things of this nature. _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
