Hi, On 2019-01-07 19:37:51 -0500, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > Hm, shouldn't we extract the perfect hash generation into a perl module > > or such? It seems that there's plenty other possible uses for it. > > Such as?
Builtin functions for one, which we'd swatted down last time round due to gperfs defficiencies. But I think there's plenty more potential, e.g. it'd make sense from a performance POV to use a perfect hash function for locks on builtin objects (the hashtable for lookups therein shows up prominently in a fair number of profiles, and they are a large percentage of the acquistions). I'm certain there's plenty more, I've not though too much about it. > But in any case, that sounds like a task for someone with > more sense of Perl style than I have. John, any chance you could help out with that... :) Greetings, Andres Freund
