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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
26 lines
626 B
Go
26 lines
626 B
Go
package memory
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import (
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"syscall"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
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)
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const maxInt = int(^uint(0) >> 1)
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func sysTotalMemory() int {
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var si syscall.Sysinfo_t
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if err := syscall.Sysinfo(&si); err != nil {
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logger.Panicf("FATAL: error in syscall.Sysinfo: %s", err)
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}
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totalMem := maxInt
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if uint64(maxInt)/uint64(si.Totalram) > uint64(si.Unit) {
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totalMem = int(uint64(si.Totalram) * uint64(si.Unit))
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}
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mem := cgroup.GetMemoryLimit()
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if mem <= 0 || int64(int(mem)) != mem || int(mem) > totalMem {
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return totalMem
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}
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return int(mem)
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}
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