frostfs-node/pkg/services/object/put/pool.go
Dmitrii Stepanov 0400153b7d [] object: Do not store large slices in pool
Dynamically growing an unbounded buffers can cause a large
amount of memory to be pinned and never be freed.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-13 07:19:55 +00:00

30 lines
447 B
Go

package putsvc
import (
"sync"
)
const (
defaultAllocSize = 1024
poolSliceMaxSize = 128 * 1024
)
type payload struct {
Data []byte
}
var putBytesPool = &sync.Pool{
New: func() any { return &payload{Data: make([]byte, 0, defaultAllocSize)} },
}
func getPayload() *payload {
return putBytesPool.Get().(*payload)
}
func putPayload(p *payload) {
if cap(p.Data) > poolSliceMaxSize {
return
}
p.Data = p.Data[:0]
putBytesPool.Put(p)
}