seaweedfs/weed/storage/needle/compact_map_perf_test.go
2018-07-21 17:39:10 -07:00

47 lines
1 KiB
Go

package needle
import (
"log"
"os"
"testing"
"github.com/chrislusf/seaweedfs/weed/glog"
. "github.com/chrislusf/seaweedfs/weed/storage/types"
"github.com/chrislusf/seaweedfs/weed/util"
)
func TestMemoryUsage(t *testing.T) {
indexFile, ie := os.OpenFile("../../../test/sample.idx", os.O_RDWR|os.O_RDONLY, 0644)
if ie != nil {
log.Fatalln(ie)
}
loadNewNeedleMap(indexFile)
}
func loadNewNeedleMap(file *os.File) {
m := NewCompactMap()
bytes := make([]byte, 16*1024)
count, e := file.Read(bytes)
if count > 0 {
fstat, _ := file.Stat()
glog.V(0).Infoln("Loading index file", fstat.Name(), "size", fstat.Size())
}
for count > 0 && e == nil {
for i := 0; i < count; i += 16 {
key := BytesToNeedleId(bytes[i : i+NeedleIdSize])
offset := BytesToOffset(bytes[i+NeedleIdSize : i+NeedleIdSize+OffsetSize])
size := util.BytesToUint32(bytes[i+NeedleIdSize+OffsetSize : i+NeedleIdSize+OffsetSize+SizeSize])
if offset > 0 {
m.Set(NeedleId(key), offset, size)
} else {
//delete(m, key)
}
}
count, e = file.Read(bytes)
}
}