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wal: use larger buffer

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This commit is contained in:
Fabian Reinartz 2017-01-16 14:18:25 +01:00
parent 1c80c33e72
commit 9cf49f68e9
1 changed files with 9 additions and 7 deletions
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16
wal.go
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@ -1,6 +1,7 @@
package tsdb package tsdb
import ( import (
"bufio"
"encoding/binary" "encoding/binary"
"hash/crc32" "hash/crc32"
"io" "io"
@ -11,7 +12,6 @@ import (
"time" "time"
"github.com/coreos/etcd/pkg/fileutil" "github.com/coreos/etcd/pkg/fileutil"
"github.com/coreos/etcd/pkg/ioutil"
"github.com/fabxc/tsdb/labels" "github.com/fabxc/tsdb/labels"
"github.com/go-kit/kit/log" "github.com/go-kit/kit/log"
"github.com/pkg/errors" "github.com/pkg/errors"
@ -165,7 +165,8 @@ func (w *WAL) Close() error {
type walEncoder struct { type walEncoder struct {
mtx sync.Mutex mtx sync.Mutex
w *ioutil.PageWriter // w *ioutil.PageWriter
w *bufio.Writer
} }
const ( const (
@ -178,12 +179,13 @@ const (
) )
func newWALEncoder(f *os.File) (*walEncoder, error) { func newWALEncoder(f *os.File) (*walEncoder, error) {
offset, err := f.Seek(0, os.SEEK_CUR) // offset, err := f.Seek(0, os.SEEK_CUR)
if err != nil { // if err != nil {
return nil, err // return nil, err
} // }
enc := &walEncoder{ enc := &walEncoder{
w: ioutil.NewPageWriter(f, walPageBytes, int(offset)), // w: ioutil.NewPageWriter(f, walPageBytes, int(offset)),
w: bufio.NewWriterSize(f, 4*1024*1024),
} }
return enc, nil return enc, nil
} }