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Code Issues Releases Activity

Reuse memory in metric pipelines (#3760)

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* Have pipelines reuse memory

* truncate Metric slice

* Apply suggestions from code review

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Use rm pool on periodic shutdown.

* zero out RM on ctx error

* Update sdk/metric/pipeline.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Peter Liu <lpfvip2008@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Fix lint

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Peter Liu <lpfvip2008@gmail.com>
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
This commit is contained in:
Aaron Clawson
2023-03-09 11:43:16 -06:00
committed by GitHub
parent 7dc7b30405
commit e463505da7
7 changed files with 99 additions and 57 deletions
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24
sdk/metric/internal/reuse_slice.go Normal file
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// Copyright The OpenTelemetry Authors
//
// 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 internal // import "go.opentelemetry.io/otel/sdk/metric/internal"
// ReuseSlice returns a zeroed view of slice if its capacity is greater than or
// equal to n. Otherwise, it returns a new []T with capacity equal to n.
func ReuseSlice[T any](slice []T, n int) []T {
if cap(slice) >= n {
return slice[:n]
}
return make([]T, n)
}