On 2016-03-29 13:24:40 -0400, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > Dilip, could you test performance of reducing ppc's spinlock to 1 byte? > > Cross-compiling suggest that doing so "just works". I.e. replace the > > #if defined(__ppc__) typedef from an int to a char. > > AFAICS, lwarx/stwcx are specifically *word* wide.
Ah, x86 gcc is just too convenient, with it automatically adjusting instruction types :( There's actually lbarx/stbcx - but it's not present in all ISAs. So I guess it's clear where to go. Andres Freund -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
