Messages in this thread | | | Date | Wed, 6 Jun 2018 14:50:22 +0200 | From | Jakub Racek <> | Subject | Re: Performance drop on kernel-4.17 visible on Stream, Linpack and NAS parallel benchmarks |
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+++ Rafael J. Wysocki [06/06/18 14:34 +0200]: >On Wed, Jun 6, 2018 at 2:27 PM, Jakub Racek <jracek@redhat.com> wrote: >> Hi, >> >> There is a huge performance regression on the 2 and 4 NUMA node systems on >> stream benchmark with 4.17 kernel compared to 4.16 kernel. Stream, Linpack >> and NAS parallel benchmarks show upto 50% performance drop. > >OK, and why do you think that it is related to ACPI?
I don't know where the problems is or who to CC.
What information should be added? I can probably provide it, if I know what.
>Thanks, >Rafael
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