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d5d08c58df
* add auto GOMEMLIMIT Signed-off-by: dongjiang1989 <dongjiang1989@126.com> --------- Signed-off-by: dongjiang1989 <dongjiang1989@126.com> Co-authored-by: Simon Pasquier <spasquie@redhat.com>
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
// Copyright 2024 The prometheus-operator Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package goruntime
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import (
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"runtime/debug"
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"github.com/KimMachineGun/automemlimit/memlimit"
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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)
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func SetMemLimit(logger log.Logger, memlimitRatio float64) {
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if memlimitRatio >= 1.0 {
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memlimitRatio = 1.0
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} else if memlimitRatio <= 0.0 {
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memlimitRatio = 0.0
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}
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// the memlimitRatio argument to 0, effectively disabling auto memory limit for all users.
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if memlimitRatio == 0.0 {
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return
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}
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if _, err := memlimit.SetGoMemLimitWithOpts(
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memlimit.WithRatio(memlimitRatio),
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memlimit.WithProvider(
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memlimit.ApplyFallback(
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memlimit.FromCgroup,
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memlimit.FromSystem,
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),
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),
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); err != nil {
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level.Warn(logger).Log("component", "automemlimit", "msg", "Failed to set GOMEMLIMIT automatically", "err", err)
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}
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level.Info(logger).Log("GOMEMLIMIT set to %d", debug.SetMemoryLimit(-1))
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}
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