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+ -r and -p options.
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@alexyakunin
alexyakunin committed Sep 16, 2018
1 parent 11c2ab5 commit 7313598
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Showing 2 changed files with 77 additions and 55 deletions.
128 changes: 75 additions & 53 deletions src/CSharp/App/App.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,21 +18,29 @@ public class Options
Default = 10)]
public int? Duration { get; set; }

[Option('m', "ram", Required = false, HelpText = "RAM size, GB",
[Option('m', "staticSetSize", Required = false, HelpText = "Static set size, GB",
Default = null)] // null = same as physical RAM amount
public string RamSize { get; set; }
public string StaticSetSize { get; set; }

[Option('t', "threads", Required = false, HelpText = "Number of threads to use",
Default = null)]
public string ThreadCount { get; set; }

[Option('o', "maxSize", Required = false, HelpText = "Max. object size",
Default = null)] // null = don't change what's on start
public string MaxSize { get; set; }

[Option('r', "runTests", Required = false, HelpText = "Tests to run (a = raw allocation, b = burn)",
Default = null)] // null = don't change what's on start
public string Tests { get; set; }

[Option('l', "gcLatencyMode", Required = false, HelpText = "Latency mode",
Default = null)] // null = don't change what's on start
public string GCLatencyMode { get; set; }

[Option('s', "maxSize", Required = false, HelpText = "Max. object size",
[Option('p', "outputMode", Required = false, HelpText = "Output mode (f = full, m = minimal)",
Default = null)] // null = don't change what's on start
public string MaxSize { get; set; }
public string OutputMode { get; set; }
}

public IndentedTextWriter Writer = new IndentedTextWriter(Console.Out, " ");
Expand Down Expand Up @@ -63,66 +71,80 @@ public void Run(Options options)
options.MaxSize, BurnTester.DefaultMaxSize, true);
ParallelRunner.ThreadCount = (int) ArgumentHelper.ParseRelativeValue(
options.ThreadCount, ParallelRunner.ThreadCount, true);
var hardwareRamSize = HardwareInfo.GetRamSize();
var testedRamSize = (int) ArgumentHelper.ParseRelativeValue(options.RamSize, hardwareRamSize ?? 4, true);
var tests = options.Tests?.ToLowerInvariant() ?? "";
var ramSizeGb = HardwareInfo.GetRamSize() ?? 4;
var staticSetSizeGb = 0;
if (!string.IsNullOrEmpty(options.StaticSetSize)) {
tests += "b";
staticSetSizeGb = (int) ArgumentHelper.ParseRelativeValue(options.StaticSetSize, ramSizeGb, true);
}
var outputMode = options.OutputMode ?? "f";

if (outputMode == "f") {
// Dumping environment info
Writer.AppendValue("Launch parameters", string.Join(" ", Environment.GetCommandLineArgs().Skip(1)));
using (Writer.Section("Software:")) {
Writer.AppendValue("Runtime", ".NET Core");
using (Writer.Indent()) {
Writer.AppendValue("Version", RuntimeInformation.FrameworkDescription);
Writer.AppendValue("GC mode", GCInfo.GetGCMode());
}

// Dumping environment info
Writer.AppendValue("Launch parameters", string.Join(" ", Environment.GetCommandLineArgs().Skip(1)));
using (Writer.Section("Software:")) {
Writer.AppendValue("Runtime", ".NET Core");
using (Writer.Indent()) {
Writer.AppendValue("Version", RuntimeInformation.FrameworkDescription);
Writer.AppendValue("GC mode", GCInfo.GetGCMode());
Writer.AppendValue("OS",
$"{RuntimeInformation.OSDescription.Trim()} ({RuntimeInformation.OSArchitecture})");
}
Writer.AppendValue("OS", $"{RuntimeInformation.OSDescription.Trim()} ({RuntimeInformation.OSArchitecture})");
}
using (Writer.Section("Hardware:")) {
var coreCountAddon = ParallelRunner.ThreadCount != Environment.ProcessorCount
? $" (assuming {ParallelRunner.ThreadCount} during the test)"
: "";
Writer.AppendValue("CPU", HardwareInfo.GetCpuModelName());
Writer.AppendValue("CPU core count", $"{Environment.ProcessorCount}{coreCountAddon}");
var ramSizeAddon = testedRamSize != hardwareRamSize
? $" (assuming {testedRamSize} GB during the test)"
: "";
Writer.AppendValue("RAM size", $"{hardwareRamSize.ToString("N0", "GB")}{ramSizeAddon}");

using (Writer.Section("Hardware:")) {
var coreCountAddon = ParallelRunner.ThreadCount != Environment.ProcessorCount
? $", {ParallelRunner.ThreadCount} used by test"
: "";
Writer.AppendValue("CPU", HardwareInfo.GetCpuModelName());
Writer.AppendValue("CPU core count", $"{Environment.ProcessorCount}{coreCountAddon}");
Writer.AppendValue("RAM size", $"{ramSizeGb:N0} GB");
}
Writer.AppendLine();
}

RunWarmup();

// Checking whether we actually know the RAM size to test
var ramSize = testedRamSize * Sizes.GB;
if (tests == "") {
RunSpeedTest();
RunBurnTest("--- Stateless server (no static set) ---", 0);
RunBurnTest("--- Worker / typical server (static set = 20% RAM) ---", (long) (ramSizeGb * Sizes.GB / 5));
RunBurnTest("--- Caching / compute server (static set = 50% RAM) ---", (long) (ramSizeGb * Sizes.GB / 2));
return;
}

// Finally, running the test
SpeedTester speedTester;
BurnTester burnTester;
using (Writer.Section("Warming up...")) {
speedTester = SpeedTester.NewWarmup();
speedTester.Run();
speedTester = null;
burnTester = BurnTester.NewWarmup(1 * (long) Sizes.GB);
burnTester.Run();
burnTester = null;
Writer.AppendLine("Done.");
if (tests.Contains("a")) {
RunSpeedTest();
}
Writer.AppendLine();
if (tests.Contains("b")) {
var title = $"--- Static set = {staticSetSizeGb} GB ({staticSetSizeGb * 100.0 / ramSizeGb:0.##} % RAM) ---";
RunBurnTest(title, (long) (staticSetSizeGb * Sizes.GB));
}
}

Writer.AppendLine("--- Raw allocation (w/o holding what's allocated) ---");
Writer.AppendLine();
speedTester = SpeedTester.New();
public void RunWarmup()
{
var speedTester = SpeedTester.NewWarmup();
speedTester.Run();

Writer.AppendLine("--- Stateless server (no static set) ---");
Writer.AppendLine();
burnTester = BurnTester.New(0);
var burnTester = BurnTester.NewWarmup(10 * (long) Sizes.MB);
burnTester.Run();
}

Writer.AppendLine("--- Worker / typical server (static set = 20% RAM) ---");
public void RunSpeedTest()
{
Writer.AppendLine("--- Raw allocation (w/o holding what's allocated) ---");
Writer.AppendLine();
burnTester = BurnTester.New((long) (ramSize * 0.2));
burnTester.Run();

Writer.AppendLine("--- Caching / compute server (static set = 50% RAM) ---");
var speedTester = SpeedTester.New();
speedTester.Run();
}

public void RunBurnTest(string title, long staticSetSize)
{
Writer.AppendLine(title);
Writer.AppendLine();
burnTester = BurnTester.New((long) (ramSize * 0.5));
var burnTester = BurnTester.New(staticSetSize);
burnTester.Run();
}
}
Expand Down
4 changes: 2 additions & 2 deletions src/CSharp/Main/SpeedTest/SpeedTester.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,14 +9,14 @@ namespace GCBurn.SpeedTest
{
public class SpeedTester
{
public const int PassCount = 10;
public const int PassCount = 30;
public static TimeSpan DefaultDuration = TimeSpan.FromMilliseconds(1);
public TimeSpan Duration = DefaultDuration;
public IndentedTextWriter Writer = new IndentedTextWriter(Console.Out, " ");

public static SpeedTester New() => new SpeedTester();
public static SpeedTester NewWarmup() => new SpeedTester() {
Duration = TimeSpan.FromSeconds(1),
Duration = TimeSpan.FromMilliseconds(5),
Writer = new IndentedTextWriter(TextWriter.Null),
};

Expand Down

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