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-rw-r--r--src/backend/utils/misc/postgresql.conf.sample4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 7c12434efa2..ff56a1f0732 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -198,8 +198,8 @@
# - I/O -
#backend_flush_after = 0 # measured in pages, 0 disables
-#effective_io_concurrency = 16 # 1-1000; 0 disables prefetching
-#maintenance_io_concurrency = 16 # 1-1000; 0 disables prefetching
+#effective_io_concurrency = 16 # 1-1000; 0 disables issuing multiple simultaneous IO requests
+#maintenance_io_concurrency = 16 # 1-1000; same as effective_io_concurrency
#io_max_combine_limit = 128kB # usually 1-128 blocks (depends on OS)
# (change requires restart)
#io_combine_limit = 128kB # usually 1-128 blocks (depends on OS)