Mike S wrote: > Chris Albertson wrote: >> Mike S<[email protected]> wrote: > I've played around with different cpufreq setting, thinking >> it might be related to the processor speed during an IRQ, >> but that seems to have minimal impact >> (performance vs. conservative vs. ondemand). >> >> I think your CPU goes into some power saving mode when >> there is no load and takes some number of micro seconds >> to wake up after an interrupt. >> Keeping a load on it prevents the sleep or power save >> mode and hence the need to "wake up." > > Then explain why setting the cpufreq governor to "performance" > (which locks it to the highest frequency ( > http://www.mjmwired.net/kernel/Documentation/cpu-freq/governors.txt ) > has no significant effect.
_Exactly_ which CPU are you using? FYI, There are some modern CPUs that ignore OS, BIOS, ... under certain conditions, and will power and/or frequency manage the cores for thermal management. -- E-Mail Sent to this address <[email protected]> will be added to the BlackLists. _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
