[Mono] Замер производительности среды выполнения

IdleIterator.Iterate (...)

		private static void GenerateCSV (TextReader reader, TextWriter writer, Parameters pars) {

			CompSystem system = SystemCompiler.CompileSystem (reader.ReadToEnd(), true);
			Verify (system.Domain);

			SimulationModel model = CompResolver.Resolve (system.Domain);
			SimulationContext ctx = new SimulationContext();

			ctx.Method = GetMethod (pars.MethodType);
			ctx.Randomness = GetRandomness (pars.RandomnessType);

			// тут можно запомнить текущее время

			// было так:
			// WritingIterator.Iterate (model.Simulate (ctx), writer);

			// станет так:
			IdleIterator.Iterate (model.Simulate (ctx));

			// тут можно снова замерить время и вывести разницу -
			// именно столько будет потрачено на вычисления плюс
			// небольшое копирование данных в массив, но последнее
			// роли большой не играет
		}

CopyToBuffer (domain, it.Statements);

root@beagleboard:/mnt# mono --version
Mono JIT compiler version 2.6.3 (tarball Fri Mar 18 15:18:29 CET 2011)
Copyright (C) 2002-2010 Novell, Inc and Contributors. www.mono-project.com
        TLS:           normal
        GC:            Included Boehm (with typed GC and Parallel Mark)
        SIGSEGV:       normal
        Notifications: epoll
        Architecture:  armel,soft-float
        Disabled:      none

Processor       : ARMv7 Processor rev 2 (v7l)
BogoMIPS        : 842.70
Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3

root@beagleboard:/mnt# mono ./mono_bench.exe 
Mono benchmark:
test finished in 3400.879 ms count 10000000

$ mono --version
Mono JIT compiler version 2.6.7 (Debian 2.6.7-5ubuntu3)
Copyright (C) 2002-2010 Novell, Inc and Contributors. www.mono-project.com
        TLS:           __thread
        GC:            Included Boehm (with typed GC and Parallel Mark)
        SIGSEGV:       altstack
        Notifications: epoll
        Architecture:  x86
        Disabled:      none

Intel(R) Core(TM) Duo CPU      T2600  @ 2.16GHz
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
 constant_tsc arch_perfmon bts aperfmperf pni monitor vmx est tm2 xtpr pdcm dts
bogomips        : 4322.41

$ mono ./mono_bench.exe 
Mono benchmark:
test finished in 157,181 ms count 10000000

using System;
using System.Timers;

namespace mono_bench
{
	class MainClass
	{
		public static void Main(string[] args)
		{
			Console.WriteLine("Mono benchmark:");
			MainClass mc = new MainClass();
			DateTime time_start = DateTime.Now;
			
			long count = mc.test001();
			
			DateTime time_end = DateTime.Now;
			TimeSpan time_span = time_end - time_start;
			Console.WriteLine("test finished in " + time_span.TotalMilliseconds.ToString() + " ms count " + count.ToString());
		}
		
		public long test001()
		{
			long count = 0;
			int a = 2, b = 3, c = 4;
			for(long i = 0; i < 1E7; i++)
			{
				a *= 2;
				b = a + 3;
				c = a - 8;
				a = b - 5 + c;
				count++;
			}
			return count;
		}
	}
}