Refactor GetLockStatusData() to skip backends/groups without fast-path locks.
Previously, GetLockStatusData() checked all slots for every backend to gather fast-path lock data, which could be inefficient. This commit refactors it by skipping backends with PID=0 (since they don't hold fast-path locks) and skipping groups with no registered fast-path locks, improving efficiency. This refactoring is particularly beneficial, for example when max_connections and max_locks_per_transaction are set high, as it reduces unnecessary checks across numerous slots. Author: Fujii Masao Reviewed-by: Bertrand Drouvot Discussion: https://postgr.es/m/a0a00c44-31e9-4c67-9846-fb9636213...@oss.nttdata.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/86c30cef4a4cae951b2c30f1790fd5a7b81a2946 Modified Files -------------- src/backend/storage/lmgr/lock.c | 67 ++++++++++++++++++++++++----------------- 1 file changed, 39 insertions(+), 28 deletions(-)
