Prevent lwlock dtrace probes from unnecessary work If dtrace is compiled in but disabled, the lwlock dtrace probes still evaluate their arguments. Since PostgreSQL 13, T_NAME(lock) does nontrivial work, so it should be avoided if not needed. To fix, make these calls conditional on the *_ENABLED() macro corresponding to each probe. Reviewed-by: Craig Ringer <[email protected]> Discussion: https://www.postgresql.org/message-id/CAGRY4nwxKUS_RvXFW-ugrZBYxPFFM5kjwKT5O+0+Stuga5b4+Q@mail.gmail.com Branch ------ REL_13_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/e48ce7ef0ef8de3d8e9e56be4d23d7830681b18b Modified Files -------------- src/backend/storage/lmgr/lwlock.c | 39 ++++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 13 deletions(-)
pgsql-committers by date:
Соглашаюсь с условиями обработки персональных данных
