add comment on min_free_kbytes

vesoft-inc · May 12, 2022 · d98ac29 · d98ac29
1 parent c7b7a19
commit d98ac29
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/conf/tuned/nebula/tuned.conf b/conf/tuned/nebula/tuned.conf
@@ -14,6 +14,8 @@ kernel.numa_balancing=0
 
 vm.swappiness=0
 vm.oom_dump_tasks=1
+# min_free_kbytes is suggested to set to approximately 2% of the total memory.
+# 1GB at least and 5GB at most.
 vm.min_free_kbytes=5242880
 vm.max_map_count=131060
 vm.dirty_background_ratio = 3