Hi Aubrey, Great data. Can you send me the workload? I'd like to reproduce to see where/how things are going wrong.
Thanks! -Eric Li, Aubrey wrote: > Testing with a graduated workload shows how well event mode works. > > cpupm is set to event-mode, > c-state is disabled, > the hardware platfrom has 8 cores. > monitor dtrace probe "ess_transition" > > The result is as follows: > ========================================= > average | the numbers of the probe > system workload | is hitted per minutes(60s) > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > - - > 0% | 243 > 13% | 28195 > 26% | 5379 > 38% | 8723 > 51% | 9939 > 63% | 12259 > 76% | 10611 > 88% | 11907 > 100% | 13443 > ======================================== > The average system workload was obtained from (100 - vmstat.idle). > >From the result, we can see, event-mode is too sensitive to properly drive > the p-state transition. this could be a reason to impact performance. > > Any thoughts? > > Thanks, > -Aubrey > > > > _______________________________________________ > tesla-dev mailing list > tesla-dev at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/tesla-dev >
