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Update runtime metrics tests to avoid failures on some platforms #105300

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merged 4 commits into from
Jul 30, 2024
Merged

Update runtime metrics tests to avoid failures on some platforms #105300

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7c28874
Update runtime metrics tests to avoid failures on some platforms
stevejgordon Jul 23, 2024
7156ef1
Fix incorrect assertion in last commit
stevejgordon Jul 23, 2024
0c3145d
Skip CPU time on mobile
stevejgordon Jul 24, 2024
7109a74
Skip test on Mobile platforms
tarekgh Jul 30, 2024
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22 changes: 13 additions & 9 deletions src/libraries/System.Diagnostics.DiagnosticSource/tests/RuntimeMetricsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Runtime;
using System.Threading;
using Xunit;
using Xunit.Abstractions;
Expand All @@ -17,6 +18,9 @@ public class RuntimeMetricsTests(ITestOutputHelper output)

private static readonly string[] s_genNames = ["gen0", "gen1", "gen2", "loh", "poh"];

// On some platforms and AoT scenarios, the JIT may not be in use. Some assertions will consider zero as a valid in such cases.
private static bool s_jitHasRun = JitInfo.GetCompiledMethodCount() > 0;

private static readonly Func<bool> s_forceGc = () =>
{
for (var gen = 0; gen <= GC.MaxGeneration; gen++)
Expand Down Expand Up @@ -69,7 +73,7 @@ public void GcCollectionsCount()
Assert.True(measurements.Count >= gensExpected, $"Expected to find at least one measurement for each generation ({gensExpected}) " +
$"but received {measurements.Count} measurements.");

foreach (Measurement<long> measurement in measurements.Where(m => m.Value >= 1))
foreach (Measurement<long> measurement in measurements)
{
var tags = measurement.Tags.ToArray();
var tag = tags.SingleOrDefault(k => k.Key == "gc.heap.generation");
Expand Down Expand Up @@ -112,7 +116,7 @@ public void GcCollectionsCount()
}
}

[ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotBrowser))]
[ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotMobile))]
public void CpuTime()
{
using InstrumentRecorder<double> instrumentRecorder = new("dotnet.process.cpu.time");
Expand All @@ -121,7 +125,7 @@ public void CpuTime()

bool[] foundCpuModes = [false, false];

foreach (Measurement<double> measurement in instrumentRecorder.GetMeasurements().Where(m => m.Value >= 0))
foreach (Measurement<double> measurement in instrumentRecorder.GetMeasurements())
{
var tags = measurement.Tags.ToArray();
var tag = tags.SingleOrDefault(k => k.Key == "cpu.mode");
Expand Down Expand Up @@ -220,26 +224,26 @@ static void AssertExceptions(IReadOnlyList<Measurement<long>> measurements, int
}
}

public static IEnumerable<object[]> LongMeasurements => new List<object[]>
public static IEnumerable<object[]> Measurements => new List<object[]>
{
new object[] { "dotnet.process.memory.working_set", s_longGreaterThanZero, null },
new object[] { "dotnet.assembly.count", s_longGreaterThanZero, null },
new object[] { "dotnet.process.cpu.count", s_longGreaterThanZero, null },
new object[] { "dotnet.gc.heap.total_allocated", s_longGreaterThanZero, null },
new object[] { "dotnet.gc.last_collection.memory.committed_size", s_longGreaterThanZero, s_forceGc },
new object[] { "dotnet.gc.pause.time", s_doubleGreaterThanOrEqualToZero, s_forceGc }, // may be zero if no GC has occurred
new object[] { "dotnet.jit.compiled_il.size", s_longGreaterThanZero, null },
new object[] { "dotnet.jit.compiled_methods", s_longGreaterThanZero, null },
new object[] { "dotnet.jit.compilation.time", s_doubleGreaterThanZero, null },
new object[] { "dotnet.jit.compiled_il.size", s_jitHasRun ? s_longGreaterThanZero : s_longGreaterThanOrEqualToZero, null },
new object[] { "dotnet.jit.compiled_methods", s_jitHasRun ? s_longGreaterThanZero : s_longGreaterThanOrEqualToZero, null },
new object[] { "dotnet.jit.compilation.time", s_jitHasRun ? s_doubleGreaterThanZero : s_doubleGreaterThanOrEqualToZero, null },
new object[] { "dotnet.monitor.lock_contentions", s_longGreaterThanOrEqualToZero, null },
new object[] { "dotnet.thread_pool.thread.count", s_longGreaterThanZero, null },
new object[] { "dotnet.thread_pool.work_item.count", s_longGreaterThanOrEqualToZero, null },
new object[] { "dotnet.thread_pool.queue.length", s_longGreaterThanOrEqualToZero, null },
new object[] { "dotnet.timer.count", s_longGreaterThanOrEqualToZero, null },
};

[ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.IsNotBrowser))]
[MemberData(nameof(LongMeasurements))]
[ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.IsNotMobile))]
[MemberData(nameof(Measurements))]
public void ValidateMeasurements<T>(string metricName, Func<T, (bool, string?)>? valueAssertion, Func<bool>? beforeRecord)
where T : struct
{
Expand Down
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