[Mono-bugs] [Bug 550420] New: IA64 performance 15x slower than expected.
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bugzilla_noreply at novell.com
Tue Oct 27 10:49:52 EDT 2009
http://bugzilla.novell.com/show_bug.cgi?id=550420
Summary: IA64 performance 15x slower than expected.
Classification: Mono
Product: Mono: Runtime
Version: 2.4.x
Platform: IA64
OS/Version: SLES 10
Status: NEW
Severity: Major
Priority: P5 - None
Component: misc
AssignedTo: mono-bugs at lists.ximian.com
ReportedBy: charles at asc.edu
QAContact: mono-bugs at lists.ximian.com
Found By: ---
Created an attachment (id=324343)
--> (http://bugzilla.novell.com/attachment.cgi?id=324343)
c# program and output
Description of Problem:
For most things I'm seeing a 2-5x performance on an IA64 system over my Celeron
(which is about the cheapest thing money can buy)
However my Celeron stomps the IA64 system for a test mono program by 10-15x.
Can you please explain this or improve IA64 mono performance?
Steps to reproduce the problem:
1. Run the attached C# program on an x86 or x86_64 system
2. Run the attached C# program on an IA64 system
Actual Results:
Here are the run times I'm getting.
17-21 secs for int_sin.exe Intel(R) Celeron(R) CPU 215 @ 1.33GHz
(mono 2.4.2.3)
332 secs for int_sin.exe Itanium2 1.4 GHz (mono 2.4.2.3 - compiled from
source)
280 secs for int_sin.exe Itanium2 1.4 GHz (mono 1.2.2 - from SLES 10 SP3)
Expected Results:
Both Itanium2 runs should have been less that 17 secs.
How often does this happen?
Every time.
Additional Information:
See attached files.
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