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6721e47ae9
Update GOMAXPROCS to limits set via cgroups. This should reduce CPU trashing and reduce memory usage for cases when VictoriaMetrics components run in containers with CPU limits. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685
24 lines
671 B
Go
24 lines
671 B
Go
package cgroup
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import (
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"bytes"
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"io/ioutil"
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"os/exec"
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"strconv"
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)
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func readInt64(path, altCommand string) (int64, error) {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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// Read data according to https://unix.stackexchange.com/questions/242718/how-to-find-out-how-much-memory-lxc-container-is-allowed-to-consume
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// This should properly determine the data location inside lxc container.
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/84
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cmd := exec.Command("/bin/sh", "-c", altCommand)
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data, err = cmd.Output()
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if err != nil {
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return 0, err
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}
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}
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data = bytes.TrimSpace(data)
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return strconv.ParseInt(string(data), 10, 64)
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}
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