On 2020.12.14 12:02 Rafael J. Wysocki wrote: > Hi,
Hi Rafael, V2 test results below are new, other results are partially re-stated: For readers that do not want to read on, I didn't find anything different than with the other versions. This was more just due diligence. Legend: hwp: Kernel 5.10-rc6, HWP enabled; intel_cpufreq rfc (or rjw): Kernel 5.10-rc6 + this patch set, HWP enabled; intel_cpu-freq; schedutil no-hwp: Kernel 5.10-rc6, HWP disabled; intel_cpu-freq acpi (or acpi-cpufreq): Kernel 5.10-rc6, HWP disabled; acpi-cpufreq; schedutil patch: Kernel 5.10-rc7 + V1 patch set, HWP enabled; intel_cpu-freq; schedutil v2: Kernel 5.10-rc7 + V2 patch set, HWP enabled; intel_cpu-freq; schedutil Fixed work packet, fixed period, periodic workflow, load sweep up/down: load work/sleep frequency: 73 Hertz: hwp: Average: 12.00822 watts rjw: Average: 10.18089 watts no-hwp: Average: 10.21947 watts acpi-cpufreq: Average: 9.06585 watts patch: Average: 10.26060 watts v2: Average: 10.50444 load work/sleep frequency: 113 Hertz: hwp: Average: 12.01056 rjw: Average: 10.12303 no-hwp: Average: 10.08228 acpi-cpufreq: Average: 9.02215 patch: Average: 10.27055 v2: Average: 10.31097 load work/sleep frequency: 211 Hertz: hwp: Average: 12.16067 rjw: Average: 10.24413 no-hwp: Average: 10.12463 acpi-cpufreq: Average: 9.19175 patch: Average: 10.33000 v2: Average: 10.39811 load work/sleep frequency: 347 Hertz: hwp: Average: 12.34169 rjw: Average: 10.79980 no-hwp: Average: 10.57296 acpi-cpufreq: Average: 9.84709 patch: Average: 10.67029 v2: Average: 10.93143 load work/sleep frequency: 401 Hertz: hwp: Average: 12.42562 rjw: Average: 11.12465 no-hwp: Average: 11.24203 acpi-cpufreq: Average: 10.78670 patch: Average: 10.94514 v2: Average: 11.50324 Serialized single threaded via PIDs per second method: A.K.A fixed work packet, variable period Results: Execution times (seconds. Less is better): no-hwp: performance: Samples: 382 ; Average: 10.54450 ; Stand Deviation: 0.01564 ; Maximum: 10.61000 ; Minimum: 10.50000 schedutil: Samples: 293 ; Average: 13.73416 ; Stand Deviation: 0.73395 ; Maximum: 15.46000 ; Minimum: 11.68000 acpi: Samples: 253 ; Average: 15.94889 ; Stand Deviation: 1.28219 ; Maximum: 18.66000 ; Minimum: 12.04000 hwp: schedutil: Samples: 380 ; Average: 10.58287 ; Stand Deviation: 0.01864 ; Maximum: 10.64000 ; Minimum: 10.54000 patch: Samples: 276 ; Average: 14.57029 ; Stand Deviation: 0.89771 ; Maximum: 16.04000 ; Minimum: 11.68000 rfc: Samples: 271 ; Average: 14.86037 ; Stand Deviation: 0.84164 ; Maximum: 16.04000 ; Minimum: 12.21000 v2: Samples: 274 ; Average: 14.67978 ; Stand Deviation: 1.03378 ; Maximum: 16.07000 ; Minimum: 11.43000 Power (watts. More indicates higher CPU frequency and better performance. Sample time = 1 second.): no-hwp: performance: Samples: 4000 ; Average: 25.41355 ; Stand Deviation: 0.22156 ; Maximum: 26.01996 ; Minimum: 24.08807 schedutil: Samples: 4000 ; Average: 12.58863 ; Stand Deviation: 5.48600 ; Maximum: 25.50934 ; Minimum: 7.54559 acpi: Samples: 4000 ; Average: 9.57924 ; Stand Deviation: 5.41157 ; Maximum: 25.06366 ; Minimum: 5.51129 hwp: schedutil: Samples: 4000 ; Average: 25.24245 ; Stand Deviation: 0.19539 ; Maximum: 25.93671 ; Minimum: 24.14746 patch: Samples: 4000 ; Average: 11.07225 ; Stand Deviation: 5.63142 ; Maximum: 24.99493 ; Minimum: 3.67548 rfc: Samples: 4000 ; Average: 10.35842 ; Stand Deviation: 4.77915 ; Maximum: 24.95953 ; Minimum: 7.26202 v2: Samples: 4000 ; Average: 10.98284 ; Stand Deviation: 5.48859 ; Maximum: 25.76331 ; Minimum: 7.53790
