On Thu, Oct 05, 2023 at 10:59:28AM -0400, Luiz Capitulino wrote:
Hi,
We found that commits 46bdb4277f98 and 0388f9c74330 (merged in v5.12) introduced more than 40% performance regression in UnixBench's process creation benchmark when comparing 5.10 with 5.15 and 6.1 on AWS' virtualized Graviton instances.
This has been mostly fixed by the following upstream commit:
""" commit a89c6bcdac22bec1bfbe6e64060b4cf5838d4f47 Author: Gabriel Krisman Bertazi krisman@suse.de Date: Mon Jan 9 12:19:55 2023 -0300
arm64: Avoid repeated AA64MMFR1_EL1 register read on pagefault path """
Queued up, thanks!