On 6/10/13 4:28 PM, Rick Jones wrote:
I think I could get what I want from that - assuming I could get that to
a kernel I can use in my test env, but am guessing it is rather more
than I"m looking for at the moment. I'm wondering if there might be a
simpler way to go - just get the idle loop to keep looping rather than
halt (?) the thread, so there would still be cycle events in the PMU?
(And perhaps set the system to a static, high-performance mode to avoid
frequency changes and maybe even disable HT?)
Or, after having found
https://www.kernel.org/doc/Documentation/kernel-parameters.txt, perhaps
idle=poll?
Yes, that should turn the server into a power-sucking space heater and
keep the cycles counter firing.
David
--
To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
