mem: math.floor->ceil and substract SReclaimable too from the total; closes #271

[etc/awesome.git] / widgets / mem.lua

diff --git a/widgets/mem.lua b/widgets/mem.lua
index 7f4f346b99d7ae8880e00f465212855529c5f902..763ac4b4925b83a7695c9290862472197795b140 100644 (file)
--- a/widgets/mem.lua
+++ b/widgets/mem.lua
@@ -9,9 +9,9 @@
 
 local newtimer     = require("lain.helpers").newtimer
 local wibox        = require("wibox")
-local io           = { lines  = io.lines }
-local math         = { floor  = math.floor }
-local string       = { gmatch = string.gmatch }
+local gmatch       = string.gmatch
+local lines        = io.lines
+local math         = { ceil = math.ceil, floor = math.floor }
 local setmetatable = setmetatable
 
 -- Memory usage (ignoring caches)
@@ -27,19 +27,20 @@ local function worker(args)
 
     function update()
         mem_now = {}
-        for line in io.lines("/proc/meminfo") do
-            for k, v in string.gmatch(line, "([%a]+):[%s]+([%d]+).+") do
-                if     k == "MemTotal"  then mem_now.total = math.floor(v / 1024)
-                elseif k == "MemFree"   then mem_now.free  = math.floor(v / 1024)
-                elseif k == "Buffers"   then mem_now.buf   = math.floor(v / 1024)
-                elseif k == "Cached"    then mem_now.cache = math.floor(v / 1024)
-                elseif k == "SwapTotal" then mem_now.swap  = math.floor(v / 1024)
-                elseif k == "SwapFree"  then mem_now.swapf = math.floor(v / 1024)
+        for line in lines("/proc/meminfo") do
+            for k, v in gmatch(line, "([%a]+):[%s]+([%d]+).+") do
+                if     k == "MemTotal"     then mem_now.total = math.ceil(v / 1024)
+                elseif k == "MemFree"      then mem_now.free  = math.ceil(v / 1024)
+                elseif k == "Buffers"      then mem_now.buf   = math.ceil(v / 1024)
+                elseif k == "Cached"       then mem_now.cache = math.ceil(v / 1024)
+                elseif k == "SwapTotal"    then mem_now.swap  = math.ceil(v / 1024)
+                elseif k == "SwapFree"     then mem_now.swapf = math.ceil(v / 1024)
+                elseif k == "SReclaimable" then mem_now.srec  = math.ceil(v / 1024)
                 end
             end
         end
 
-        mem_now.used = mem_now.total - (mem_now.free + mem_now.buf + mem_now.cache)
+        mem_now.used = mem_now.total - mem_now.free - mem_now.buf - mem_now.cache - mem_now.srec
         mem_now.swapused = mem_now.swap - mem_now.swapf
         mem_now.perc = math.floor(mem_now.used / mem_now.total * 100)