Additional I/O tweaks

Signed-off-by: tytydraco <tylernij@gmail.com>
4 years ago · e282e698c7
parent 34cb389da5
commit e282e698c7
1 changed files with 9 additions and 0 deletions
--- a/9
+++ b/9
@ -150,9 +150,18 @@ do
 		fi
 	done

+	# Do not use I/O as a source of randomness
+	write "${queue}add_random" 0
+
 	# Disable I/O statistics accounting
 	write "${queue}iostats" 0

+	# Only attempt simple merges
+	write "${queue}nomerges" 1
+
+	# Force request completion on the origin CPU for maximum cache locality
+	write "${queue}rq_affinity" 2
+
 	# Reduce heuristic read-ahead in exchange for I/O latency
 	write "${queue}read_ahead_kb" 16