tree 8633689eec3b45ec44f0675da5bc6e49977edc48
parent 4e0818fd86bffc0b4a4b61d3295a6732ba08d715
author Greg Thompson <grt@chromium.org> 1765895765 +0100
committer GN LUCI <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1765960485 -0800

[Windows] Reduce the number of worker threads on many-core machines

Testing shows that performance decreases beyond about 14 threads on
Windows. On my primary workstation, capping at 14 threads reduces
runtime by 25% - 30% depending on the configuration (8s down to 6s or
11s down to 7.5s).

Bug: none
Change-Id: I17a4f5b8e913efcfa1998b9315362dcccac6f675
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/20640
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@google.com>