Messages in this thread | | | From | Giovanni Gherdovich <> | Subject | [PATCH v2 0/1] AMD EPYC: fix schedutil perf regression (freq-invariance) | Date | Fri, 22 Jan 2021 21:40:37 +0100 |
| |
Michael Larabel from Phoronix.com graciously tested v1, see results at:
AMD EPYC 7702 - https://openbenchmarking.org/result/2101210-PTS-LINUX51178
AMD Ryzen 9 5950X - https://openbenchmarking.org/result/2101212-HA-RYZEN959566
The reported regression is recovered, and some workloads even report an improvement over the v5.10 results.
Thanks Michael for the feedback!
v1 at https://lore.kernel.org/lkml/20210121003223.20257-1-ggherdovich@suse.cz/
Changes wrt v1:
- move code around so that it builds for non-x86 architectures too
Giovanni Gherdovich (1): x86,sched: On AMD EPYC set freq_max = max_boost in schedutil invariant formula
drivers/cpufreq/acpi-cpufreq.c | 64 +++++++++++++++++++++++++++++++- drivers/cpufreq/cpufreq.c | 3 ++ include/linux/cpufreq.h | 5 +++ kernel/sched/cpufreq_schedutil.c | 8 +++- 4 files changed, 76 insertions(+), 4 deletions(-)
-- 2.26.2
| |