surrealpatch/db/cache.go
Tobie Morgan Hitchcock d0d566bbd9 Improve database speed
2019-11-20 13:20:27 +00:00

58 lines
1.3 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package db
import (
"github.com/dgraph-io/ristretto"
)
var keyCache *ristretto.Cache
var valCache *ristretto.Cache
func init() {
keyCache, _ = ristretto.NewCache(&ristretto.Config{
NumCounters: 1e7,
MaxCost: 1 << 32,
BufferItems: 64,
Cost: func(i interface{}) int64 {
switch v := i.(type) {
case string:
return int64(len(v))
case []byte:
return int64(len(v))
default:
return 1
}
},
})
valCache, _ = ristretto.NewCache(&ristretto.Config{
NumCounters: 1e7,
MaxCost: 1 << 32,
BufferItems: 64,
Cost: func(i interface{}) int64 {
switch v := i.(type) {
case string:
return int64(len(v))
case []byte:
return int64(len(v))
default:
return 1
}
},
})
}