On Fri, 2023-01-20 at 12:54 -0800, Jeff Davis wrote: > Both of these are surprising, and I haven't investigated deeply yet.
It's just because autoconf defaults to -O2 and meson to -O3, at least on my machine. It turns out that, at -O2, master and the refactoring branch are even; but at -O3, both get faster, and the refactoring pulls ahead by a few percentage points. At least that's what's happening for en-US-x-icu on UTF-8 with my test data set. I didn't see much of a difference in other situations, but I didn't retest those other situations this time around. We should still look into why disabling abbreviated keys improves performance in some cases. Maybe we need a GUC for that? -- Jeff Davis PostgreSQL Contributor Team - AWS
