248625 2022-12-01 12:47:44 -0800 [webkitpy] Increase the default number of child processes spawned for arm64 Macs 2022-12-12 13:51:01 -0800 1 1 1 Unclassified WebKit Tools / Tests Other Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ryanhaddad ryanhaddad aakash_jain ap emw jbedard webkit-bug-importer oldest_to_newest 1916036 0 ryanhaddad 2022-12-01 12:47:44 -0800 We should increate the default number of child processes spawned for arm64 Macs, we currently spawn only 6 for a M1 Mac mini compared with 9 for the latest generation Intel one. My local testing suggests that doubling the count to 12 appears to be stable and yields about an 18 minute speedup in overall layout test runtime. 1916038 1 webkit-bug-importer 2022-12-01 12:48:36 -0800 <rdar://problem/102873021> 1916039 2 ryanhaddad 2022-12-01 12:49:29 -0800 Maybe there is a better heuristic than simply doubling, but we should consider increasing the count for a short term win before we make further optimizations to overall test runtime. 1916828 3 ryanhaddad 2022-12-05 16:04:39 -0800 Pull request: https://github.com/WebKit/WebKit/pull/7176 1918594 4 ews-feeder 2022-12-12 13:50:58 -0800 Committed 257754@main (b0febf1cc635): <https://commits.webkit.org/257754@main> Reviewed commits have been landed. Closing PR #7176 and removing active labels.