projects / users / rhaas / postgres.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 6687430) | patch
Avoid function call overhead of pg_popcount() in syslogger.c.
authorNathan Bossart <nathan@postgresql.org>
Tue, 2 Apr 2024 15:32:49 +0000 (10:32 -0500)
committerNathan Bossart <nathan@postgresql.org>
Tue, 2 Apr 2024 15:32:49 +0000 (10:32 -0500)
commit4133c1f45c54f0e52b4bb758f67af78951930e43
tree72baeaf19d88c6423727d57899acfd3f9ae5ee8btree
parent6687430c98f3bed1d4c5f85f05a230b0d4581a66commit | diff
Avoid function call overhead of pg_popcount() in syslogger.c.

Instead of calling the pg_popcount() function for a single byte, we
can look up the value in the pg_number_of_ones array.

Discussion: https://postgr.es/m/20240401221117.GB2362108%40nathanxps13
src/backend/postmaster/syslogger.c diff | blob | blame | history
Robert Haas's development tree.