Hi Dirk, FYI, we notice dropped power and performance numbers on commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 ("intel_pstate: Take core C0 time into account for core busy calculation"). v3.14-rc1 fcb6a15c2e7e76d493e6f91ea --------------- ------------------------- 6.53 ~ 4% -12.0% 5.75 ~ 2% lkp-sb03/micro/netperf/120s-200%-SCTP_STREAM 147.93 ~ 0% -23.3% 113.40 ~ 0% lkp-sbx04/micro/will-it-scale/page_fault1 154.46 ~ 0% -22.9% 119.15 ~ 0% TOTAL turbostat.Cor_W v3.14-rc1 fcb6a15c2e7e76d493e6f91ea --------------- ------------------------- 203 ~ 0% -17.0% 169 ~ 0% lkp-sbx04/micro/will-it-scale/page_fault1 203 ~ 0% -17.0% 169 ~ 0% TOTAL turbostat.Pkg_W v3.14-rc1 fcb6a15c2e7e76d493e6f91ea --------------- ------------------------- 572540 ~ 1% -30.2% 399351 ~ 1% grantley/micro/aim7/disk_src 317151 ~ 1% -42.0% 183863 ~ 0% grantley/micro/aim7/shell_rtns_1 889692 ~ 1% -34.4% 583214 ~ 1% TOTAL aim7.2000.jobs-per-min More details are attached. time.user_time 600 ++-------------------------------------------------------------------+ O O O O O | 500 ++O O O O O O O O O O O O O O O O O O O O O O O O | | | | 400 ++ | | | 300 ++ | | | 200 ++ | | | | | 100 ++ | | | 0 *+*--*-*--*-*--*-*--*-*--*-*--*-*--*-*-*--*--------------------------+ time.system_time 1200 ++------------------------------------------------------------------+ | | 1000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O O O | | | | 800 ++ | | | 600 ++ | | | 400 ++ | | | | | 200 ++ | *.*..*.*..*.*..*.*.*..*.*..*.*..*.*.*..*.* | 0 ++------------------------------------------------------------------+ time.percent_of_cpu_this_job_got 2500 O+O--O-O--O------O------O--O----O-O-O--O-O--O-O-----------O---------+ | O O O O O O O O O O O O O | | 2000 ++ | | | | | 1500 ++ | | | 1000 ++ | | | | | 500 ++ | | | *.*..*.*..*.*..*.*.*..*.*..*.*..*.*.*..*.* | 0 ++------------------------------------------------------------------+ time.elapsed_time 70 ++----------------------------O---------------------------------------+ | O O | 65 O+ O O O O O O O O O O O O O O O O O O O O O O | O O O | 60 ++ | | | 55 ++ | | | 50 ++ | | | 45 ++ | | | 40 ++ .*. .*. .*. | *..*.*. *..*.*..*.*. *..*.*..*.*. *..* | 35 ++--------------------------------------------------------------------+ aim7.2000.jobs-per-min 340000 ++----------------------------------------------------------------+ |.*.. .*.. .*.. .* *.* | 320000 *+ *. .*..* *.*. .*.* * + .. | 300000 ++ * *. * | | | 280000 ++ | | | 260000 ++ | | | 240000 ++ | 220000 ++ | | | 200000 ++ | O O O O O O O O O | 180000 ++-------O--O-O----O-O----O----O-O-O--O------O-O--O-O-O--O-O-O--O-O Thanks, Fengguang