[Mono-bugs] [Bug 564408] New: Worse Performance reading items selected with Linq 2 Obj

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=564408

http://bugzilla.novell.com/show_bug.cgi?id=564408#c0


           Summary: Worse Performance reading items selected with Linq 2
                    Obj
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 1.2.0
          Platform: x86-64
        OS/Version: RHEL 5
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: System
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: stefano.sapienti at apsystems.it
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=332425)
 --> (http://bugzilla.novell.com/attachment.cgi?id=332425)
test case

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.15)
Gecko/2009101601 Firefox/3.0.15 (.NET CLR 3.5.30729)

Between Mono 2.0.1 and Mono 2.4.3 there a slow down on reading items selected
from a collection of custom objects using Linq.
Simple query doesn't have problems but when you start reading values Mono 2.4.3
begin to brake.


Reproducible: Always

Steps to Reproduce:
1. Use attached file to create a test case.
2. Run it on Mono 2.0.1 and on Mono 2.3.4 and see the difference.

Actual Results:  
Tested on two twin Machines Mono 2.4.3 is 10 about ten time slower.

Expected Results:  
Same results or better :-)

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