public static CompilerBenchmark Success(
Compiler compiler, TimingResult timeToCompile, int numberFunctions)
{
if (timeToCompile.Elapsed == TimeSpan.Zero)
{
throw new ArgumentException(
"Compiling cannot take zero seconds", nameof(timeToCompile));
}
return(new CompilerBenchmark(compiler, timeToCompile, numberFunctions, true));
}
private CompilerBenchmark(
Compiler compiler, TimingResult timeToCompile, int numberFunctions, bool compiled)
{
if (numberFunctions < 0)
{
throw new ArgumentException(
"Cannot compile zero functions", nameof(numberFunctions));
}
Compiler = compiler;
TimeToCompile = timeToCompile;
NumberFunctions = numberFunctions;
Compiled = compiled;
}
static TimingResult?CmdTimeBenchmark(Compiler compiler, string args)
{
var sout = new List <string>();
using (var p = new Process())
{
// RESULT: %x %e %M means (exit code, elapsed time in seconds, max resident set size)
p.StartInfo.FileName = "/usr/bin/time";
p.StartInfo.Arguments = $@"-f ""RESULT: %x %e %M"" {compiler.Exe} {args}";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.ErrorDialog = false;
Console.WriteLine($"\"{p.StartInfo.FileName} {p.StartInfo.Arguments}\"");
foreach (string k in compiler.EnvironmentVariables.Keys)
{
Console.Write($" and {k}=\"{compiler.EnvironmentVariables[k]}\"");
p.StartInfo.EnvironmentVariables[k] = compiler.EnvironmentVariables[k];
}
// The last line of the output will be from /usr/bin/time
p.OutputDataReceived += (sender, outputLine) => {
if (outputLine.Data != null)
{
sout.Add(outputLine.Data);
}
};
p.ErrorDataReceived += (sender, errorLine) => {
if (errorLine.Data != null)
{
sout.Add(errorLine.Data);
}
};
p.Start();
p.BeginOutputReadLine();
p.BeginErrorReadLine();
p.WaitForExit();
if (p.ExitCode != 0)
{
Thread.Sleep(2500);
return(null);
}
}
for (var i = sout.Count - 1; i >= 0; --i)
{
var line = sout[i];
if (!line.StartsWith("RESULT:"))
{
continue;
}
var results = line.Split(' ');
var exitCode = results[1];
if (int.Parse(exitCode) != 0)
{
Console.WriteLine($" ! Compilation failed for '{compiler.Exe} {args}'");
Thread.Sleep(2500);
return(null);
}
var elapsedSeconds = double.Parse(results[2]);
var maxResidentSetSize = int.Parse(results[3]);
var timing = new TimingResult(elapsedSeconds, maxResidentSetSize);
Console.WriteLine($" - Took {timing.Elapsed} MRSS {maxResidentSetSize}");
return(timing);
}
throw new Exception("Result of /usr/bin/time not found in output of {" + string.Join("\n", sout) + "}");
}