On Wed, Jun 6, 2018 at 2:50 PM, Jakub Racek <jracek@xxxxxxxxxx> wrote: > +++ Rafael J. Wysocki [06/06/18 14:34 +0200]: >> >> On Wed, Jun 6, 2018 at 2:27 PM, Jakub Racek <jracek@xxxxxxxxxx> 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. The problem appears to be reproducible 100% of the time, so can you possibly carry out a "git bisect" binary search to find the problematic commit? Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
