liz/PluralKit
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Add more complex process performance tracking

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This commit is contained in:
Ske 2019-07-21 00:01:02 +02:00
parent 4f33ed84ac
commit bb6378df63
2 changed files with 46 additions and 4 deletions
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34
PluralKit.Bot/Services/PeriodicStatCollector.cs
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@ -1,6 +1,7 @@
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using App.Metrics;
using Discord;
@ -61,9 +62,42 @@ namespace PluralKit.Bot
_metrics.Measure.Gauge.SetValue(CoreMetrics.MemberCount, await _members.Count());
_metrics.Measure.Gauge.SetValue(CoreMetrics.SwitchCount, await _switches.Count());
_metrics.Measure.Gauge.SetValue(CoreMetrics.MessageCount, await _messages.Count());
// Process info
var process = Process.GetCurrentProcess();
_metrics.Measure.Gauge.SetValue(CoreMetrics.ProcessPhysicalMemory, process.WorkingSet64);
_metrics.Measure.Gauge.SetValue(CoreMetrics.ProcessVirtualMemory, process.VirtualMemorySize64);
_metrics.Measure.Gauge.SetValue(CoreMetrics.ProcessPrivateMemory, process.PrivateMemorySize64);
_metrics.Measure.Gauge.SetValue(CoreMetrics.ProcessThreads, process.Threads.Count);
_metrics.Measure.Gauge.SetValue(CoreMetrics.ProcessHandles, process.HandleCount);
_metrics.Measure.Gauge.SetValue(CoreMetrics.CpuUsage, await EstimateCpuUsage());
stopwatch.Stop();
_logger.Information("Updated metrics in {Time}", stopwatch.ElapsedDuration());
}
private async Task<double> EstimateCpuUsage()
{
// We get the current processor time, wait 5 seconds, then compare
// https://medium.com/@jackwild/getting-cpu-usage-in-net-core-7ef825831b8b
_logger.Information("Estimating CPU usage...");
var stopwatch = new Stopwatch();
stopwatch.Start();
var cpuTimeBefore = Process.GetCurrentProcess().TotalProcessorTime;
await Task.Delay(5000);
stopwatch.Stop();
var cpuTimeAfter = Process.GetCurrentProcess().TotalProcessorTime;
var cpuTimePassed = cpuTimeAfter - cpuTimeBefore;
var timePassed = stopwatch.Elapsed;
var percent = cpuTimePassed / timePassed;
_logger.Information("CPU usage measured as {Percent:P}", percent);
return percent;
}
}
}

16
PluralKit.Core/CoreMetrics.cs
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@ -1,13 +1,21 @@
using App.Metrics;
using App.Metrics.Gauge;
using App.Metrics.Meter;
namespace PluralKit.Core
{
public static class CoreMetrics
{
public static GaugeOptions SystemCount => new GaugeOptions { Name = "Systems", MeasurementUnit = Unit.Items};
public static GaugeOptions MemberCount => new GaugeOptions { Name = "Members", MeasurementUnit = Unit.Items };
public static GaugeOptions MessageCount => new GaugeOptions { Name = "Messages", MeasurementUnit = Unit.Items };
public static GaugeOptions SwitchCount => new GaugeOptions { Name = "Switches", MeasurementUnit = Unit.Items };
public static GaugeOptions SystemCount => new GaugeOptions { Name = "Systems", MeasurementUnit = Unit.Items, Context = "Core" };
public static GaugeOptions MemberCount => new GaugeOptions { Name = "Members", MeasurementUnit = Unit.Items, Context = "Core" };
public static GaugeOptions MessageCount => new GaugeOptions { Name = "Messages", MeasurementUnit = Unit.Items, Context = "Core" };
public static GaugeOptions SwitchCount => new GaugeOptions { Name = "Switches", MeasurementUnit = Unit.Items, Context = "Core" };
public static GaugeOptions ProcessPhysicalMemory => new GaugeOptions { Name = "Process Physical Memory", MeasurementUnit = Unit.Bytes, Context = "Process" };
public static GaugeOptions ProcessVirtualMemory => new GaugeOptions { Name = "Process Virtual Memory", MeasurementUnit = Unit.Bytes, Context = "Process" };
public static GaugeOptions ProcessPrivateMemory => new GaugeOptions { Name = "Process Private Memory", MeasurementUnit = Unit.Bytes, Context = "Process" };
public static GaugeOptions ProcessThreads => new GaugeOptions { Name = "Process Thread Count", MeasurementUnit = Unit.Threads, Context = "Process" };
public static GaugeOptions ProcessHandles => new GaugeOptions { Name = "Process Handle Count", MeasurementUnit = Unit.Items, Context = "Process" };
public static GaugeOptions CpuUsage => new GaugeOptions { Name = "CPU Usage", MeasurementUnit = Unit.Percent, Context = "Process" };
}
}