From be88485e9f1622df5abeffb4ea40f4e1080ddabb Mon Sep 17 00:00:00 2001
From: WAKAYAMA shirou <shirou.faw@gmail.com>
Date: Fri, 18 Sep 2015 14:01:49 +0900
Subject: [PATCH] mem[freebsd]: fix virtual memory available and used.

---
 mem/mem_freebsd.go | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mem/mem_freebsd.go b/mem/mem_freebsd.go
index a380519f..2791fca8 100644
--- a/mem/mem_freebsd.go
+++ b/mem/mem_freebsd.go
@@ -77,10 +77,8 @@ func VirtualMemory() (*VirtualMemoryStat, error) {
 		Wired:    parsed[6] * p,
 	}
 
-	// TODO: platform independent (worked freebsd?)
-	ret.Available = ret.Free + ret.Buffers + ret.Cached
-
-	ret.Used = ret.Total - ret.Free
+	ret.Available = ret.Inactive + ret.Cached + ret.Free
+	ret.Used = ret.Active + ret.Wired + ret.Cached
 	ret.UsedPercent = float64(ret.Total-ret.Available) / float64(ret.Total) * 100.0
 
 	return ret, nil