Count write times when extending relation files for shared buffers Relation files extended by multiple blocks at a time have been counting the number of blocks written, but forgot to increment the write time in this case, as single-block write and relation extension are treated as two different I/O operations in the shared stats: IOOP_EXTEND vs IOOP_WRITE. In this case IOOP_EXTEND was forgotten for normal (non-temporary) relations, still the number of blocks written was incremented according to the relation extend done.
Write times are tracked when track_io_timing is enabled, which is not the case by default. Author: Nazir Bilal Yavuz Reviewed-by: Robert Haas, Melanie Plageman Discussion: https://postgr.es/m/can55fz19ss279mzuqgbuunxka0ipblgyuoqxqakewrjnrp2...@mail.gmail.com Backpatch-through: 16 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/d17ffc734dad8c231ad3deee0b3670ecb99b713d Modified Files -------------- src/backend/utils/activity/pgstat_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)