RE: [PATCH] cpuidle: Add 'high' and 'low' idle state metrics

2018-12-05 Thread Doug Smythies
Hi Rafael, On 2018.12.03 04:32 Rafael J. Wysocki wrote: > Add two new metrics for CPU idle states, "high" and "low", to count > the number of times the given state had been asked for (or entered > from the kernel's perspective), but the observed idle duration turned > out to be too high or too lo

RE: [PATCH] cpuidle: Add 'high' and 'low' idle state metrics

2018-12-08 Thread Doug Smythies
On 2018.12.06 01:09 Rafael J. Wysocki wrote: > On Thu, Dec 6, 2018 at 12:08 AM Doug Smythies wrote: >> On 2018.12.03 04:32 Rafael J. Wysocki wrote: >> >>> Add two new metrics for CPU idle states, "high" and "low", to count >>> the number of

RE: [PATCH v2] cpuidle: Add 'above' and 'below' idle state metrics

2018-12-10 Thread Doug Smythies
On 2018.12.10 02:52 Peter Zijlstra wrote: >On Mon, Dec 10, 2018 at 10:36:40PM +0100, Rafael J. Wysocki wrote: >> On Mon, Dec 10, 2018 at 1:21 PM Peter Zijlstra wrote: >>> Would not a tracepoint be better?; then there is no overhead in the >>> normal case where nobody gives a crap about these here