From 6ec49fac6c6dead5affe9953f3fd10af61a7c9ad Mon Sep 17 00:00:00 2001 From: benoit Date: Mon, 20 Jan 2025 15:49:54 +0100 Subject: [PATCH 4/5] Implements logging for parallel worker usage in vacuums --- src/backend/commands/vacuumparallel.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/backend/commands/vacuumparallel.c b/src/backend/commands/vacuumparallel.c index 2d91fa2ae69..a34769e0505 100644 --- a/src/backend/commands/vacuumparallel.c +++ b/src/backend/commands/vacuumparallel.c @@ -443,6 +443,13 @@ parallel_vacuum_end(ParallelVacuumState *pvs, IndexBulkDeleteResult **istats) { Assert(!IsParallelWorker()); + if (LoggingParallelWorkers(log_parallel_workers, + pvs->nworkers_to_launch, + pvs->nworkers_launched)) + elog(LOG, "launched %i parallel workers (planned: %i)", + pvs->nworkers_launched, + pvs->nworkers_to_launch); + /* Copy the updated statistics */ for (int i = 0; i < pvs->nindexes; i++) { -- 2.47.0