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authorChris Lu <chris.lu@gmail.com>2013-02-10 03:09:26 -0800
committerChris Lu <chris.lu@gmail.com>2013-02-10 03:09:26 -0800
commitcb4e8ec16b5c204718f1efdc1731f1bdd5698ff3 (patch)
tree47f27040c3d80e6849932bf2acf54b68c930f72b /src/weed/storage/compact_map_perf_test.go
parentd3b267bac27018b7f70dfec7c258d0556fff4c14 (diff)
downloadseaweedfs-cb4e8ec16b5c204718f1efdc1731f1bdd5698ff3.tar.xz
seaweedfs-cb4e8ec16b5c204718f1efdc1731f1bdd5698ff3.zip
re-organize code directory structure
Diffstat (limited to 'src/weed/storage/compact_map_perf_test.go')
-rw-r--r--src/weed/storage/compact_map_perf_test.go43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/weed/storage/compact_map_perf_test.go b/src/weed/storage/compact_map_perf_test.go
new file mode 100644
index 000000000..b99356a73
--- /dev/null
+++ b/src/weed/storage/compact_map_perf_test.go
@@ -0,0 +1,43 @@
+package storage
+
+import (
+ "log"
+ "os"
+ "weed/util"
+ "testing"
+)
+
+func TestMemoryUsage(t *testing.T) {
+
+ indexFile, ie := os.OpenFile("sample.idx", os.O_RDWR|os.O_RDONLY, 0644)
+ if ie != nil {
+ log.Fatalln(ie)
+ }
+ LoadNewNeedleMap(indexFile)
+
+}
+
+func LoadNewNeedleMap(file *os.File) CompactMap {
+ m := NewCompactMap()
+ bytes := make([]byte, 16*1024)
+ count, e := file.Read(bytes)
+ if count > 0 {
+ fstat, _ := file.Stat()
+ log.Println("Loading index file", fstat.Name(), "size", fstat.Size())
+ }
+ for count > 0 && e == nil {
+ for i := 0; i < count; i += 16 {
+ key := util.BytesToUint64(bytes[i : i+8])
+ offset := util.BytesToUint32(bytes[i+8 : i+12])
+ size := util.BytesToUint32(bytes[i+12 : i+16])
+ if offset > 0 {
+ m.Set(Key(key), offset, size)
+ } else {
+ //delete(m, key)
+ }
+ }
+
+ count, e = file.Read(bytes)
+ }
+ return m
+}