[Mono-devel-list] Why is latest Mono runtime slow on Windows?

Piers Haken piersh at friskit.com
Sat Mar 13 11:26:24 EST 2004


Your code doesn't do anything?

I'm surprised the MS JIT even generates this:

00000023  xor         eax,eax 
00000025  inc         eax  
00000026  inc         eax  
00000027  cmp         eax,989680h 
0000002c  jl          00000025 

Piers. 

-----Original Message-----
From: mono-devel-list-admin at lists.ximian.com
[mailto:mono-devel-list-admin at lists.ximian.com] On Behalf Of Sunil
Venkateswara
Sent: Saturday, March 13, 2004 7:01 AM
To: mono-devel-list at lists.ximian.com
Subject: [Mono-devel-list] Why is latest Mono runtime slow on Windows?

Hi

I have executed the following code in
the latest mono runtime  on Windows 2000 platform and also in MS.Net .
And I found that mono runtime is 10 times slower than MS.Net for executing
this code.

Do anybody has an idea as why mono runtime is very slow?.

Thanks
Sunil

using System;
namespace HelloWorld
{
	class Class1
	{
		static void Main()
		{
			long start;
			long end;
			long time;
			long a, b, c, d, e;
			double dStart, dStop;
			//Ticks in 100-nanosec intervals
			start = DateTime.Now.Ticks;
			for(int i=0;i<10000000;i++)
			{
				++i;
				a = i;
				b = a+1;
				c = a + b;
				if (a == (b-1)) d = c;
				e = b - a;
			}
			end = DateTime.Now.Ticks;
			time =  end - start;
			Console.WriteLine("Time taken for execution = {0}
(in 100 nanosecs)", time);
		}
	}
}

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