memory: Support MemAvailable

2020-11-03 05:57:14 +02:00 · 2020-11-03 05:57:14 +02:00 · 754d6c6bc9
commit 754d6c6bc9
parent a4f9cb96e9
1 changed files with 17 additions and 1 deletions
--- a/18
+++ b/18
@ -599,10 +599,26 @@ get_memory() {
                    (MemFree|Buffers|Cached|SReclaimable)
                        mem_used=$((mem_used - val))
                    ;;
+
+                    # If detected this will be used over the above calculation
+                    # for mem_used. Available since Linux 3.14rc.
+                    # See kernel commit 34e431b0ae398fc54ea69ff85ec700722c9da773
+                    (MemAvailable)
+                        mem_avail=$val
+                    ;;
                esac
            done < /proc/meminfo

-            mem_used=$((mem_used / 1024))
+            case $mem_avail in
+                (*[0-9]*)
+                    mem_used=$(((mem_full - mem_avail) / 1024))
+                ;;
+
+                *)
+                    mem_used=$((mem_used / 1024))
+                ;;
+            esac
+
            mem_full=$((mem_full / 1024))
        ;;