util: fix wrong calculation to get memory usage. (#21158) (#21160)

pingcap · Nov 20, 2020 · 2dbe7b2 · 2dbe7b2
1 parent 485833e
commit 2dbe7b2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/util/memory/meminfo.go b/util/memory/meminfo.go
@@ -26,5 +26,5 @@ func MemTotal() (uint64, error) {
 // MemUsed returns the total used amount of RAM on this system
 func MemUsed() (uint64, error) {
 	v, err := mem.VirtualMemory()
-	return v.Total - (v.Free + v.Buffers + v.Cached), err
+	return v.Used, err
 }