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// Copyright 2024 New Vector Ltd.
// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
// Please see LICENSE files in the repository root for full details.
//go:build !wasm && !windows
// +build !wasm,!windows
package util
import (
"syscall"
"time"
"github.com/sirupsen/logrus"
)
func getMemoryStats(p *phoneHomeStats) error {
oldUsage := p.prevData
newUsage := syscall.Rusage{}
if err := syscall.Getrusage(syscall.RUSAGE_SELF, &newUsage); err != nil {
logrus.WithError(err).Error("unable to get usage")
return err
}
newData := timestampToRUUsage{timestamp: time.Now().Unix(), usage: newUsage}
p.prevData = newData
usedCPUTime := (newUsage.Utime.Sec + newUsage.Stime.Sec) - (oldUsage.usage.Utime.Sec + oldUsage.usage.Stime.Sec)
if usedCPUTime == 0 || newData.timestamp == oldUsage.timestamp {
p.stats["cpu_average"] = 0
} else {
// conversion to int64 required for GOARCH=386
p.stats["cpu_average"] = int64(usedCPUTime) / (newData.timestamp - oldUsage.timestamp) * 100
}
p.stats["memory_rss"] = newUsage.Maxrss
return nil
}
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