milvus/internal/querynodev2/segments/pool.go
congqixia 4fe363c4b2
Add KNN cgo pool (#23526)
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2023-04-19 23:56:31 +08:00

53 lines
1.4 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 segments
import (
"runtime"
"sync"
"github.com/milvus-io/milvus/pkg/util/conc"
"github.com/milvus-io/milvus/pkg/util/paramtable"
ants "github.com/panjf2000/ants/v2"
"go.uber.org/atomic"
)
var (
p atomic.Pointer[conc.Pool[any]]
initOnce sync.Once
)
// InitPool initialize
func InitPool() {
initOnce.Do(func() {
pool := conc.NewPool[any](
paramtable.Get().QueryNodeCfg.MaxReadConcurrency.GetAsInt(),
ants.WithPreAlloc(true),
ants.WithDisablePurge(true),
)
conc.WarmupPool(pool, runtime.LockOSThread)
p.Store(pool)
})
}
// GetPool returns the singleton pool instance.
func GetPool() *conc.Pool[any] {
InitPool()
return p.Load()
}