RE: Mainline kernel OLTP performance update

From: Styner, Douglas W
Date: Wed Apr 29 2009 - 14:25:58 EST


Pallipadi, Venkatesh writes:
>Output of
># grep . /sys/devices/system/cpu/cpu0/cpufreq/*
>can tell us whether P-state software coordination is the reason behind
>excessive resched IPIs. Look for ondemand being the current_governor and
>affected_cpus containing more than one CPU in it.

On these setups, we are disabling frequency scaling at the bios.
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