[Mono-list] Why is mono so slow at math compared to .Net?

Robert Weiss rweiss at chesapeakebay.net
Wed Feb 18 15:30:39 EST 2009

No *more* than 50% slower??? I really hope you are kidding me.


Original App:

C# .Net

.Net Framework 2.0

Windows XP Pro


Ported Platform:

Red Hat Enterprise Linux 5.3

Mono 2.2

C# .Net


Tester coming shortly.


From: Rodrigo Kumpera [mailto:kumpera at gmail.com] 
Sent: Wednesday, February 18, 2009 3:26 PM
To: Robert Weiss
Cc: mono-list at lists.ximian.com
Subject: Re: [Mono-list] Why is mono so slow at math compared to .Net?



On Wed, Feb 18, 2009 at 5:17 PM, Rob Weiss <rweiss at chesapeakebay.net>

We have ported a scientific app to RHEL-mono. It runs 7 times slower
than it
does in native .Net on windows.

It does tons floating point math and array processes.

Thoughts? Fixes?

Which version of mono and archtecture you ran it?

Mono should be no more than 50% slower that .NET on FP intensive code.
fill a bug report with a test for your issue.

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