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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=79356 --- shadow/79356 2006-09-11 09:51:33.000000000 -0400 +++ shadow/79356.tmp.25145 2006-09-11 09:51:33.000000000 -0400 @@ -0,0 +1,75 @@ +Bug#: 79356 +Product: Mono: Runtime +Version: 1.0 +OS: SLES 9 +OS Details: SUSE LINUX Enterprise Server 9 (ia64) +Status: NEW +Resolution: +Severity: +Priority: Wishlist +Component: JIT +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: Very bad performance of Mono on Itanium + +Description of Problem: Very bad performance of Mono on Itanium +for simple loop with assign statement. + +Steps to reproduce the problem: +1. Compile and run the program +using System; + +public class TestDoubleLoop { + + public static void Main ( String[] args ) { + + int i, j; + + byte[,] W = null; + + int s1 = 25900; + int s2 = 3238; + + DateTime dt1,dt2; + TimeSpan dt; + + dt1 = DateTime.Now; + + W = new byte [ s1, s2 ]; + + for ( i = 0; i < s1; i++ ) + for ( j = 0; j < s2; j++ ) + W [ i, j ] = 0; + + dt2 = DateTime.Now; + dt = dt2.Subtract ( dt1 ); + Console.WriteLine ( "Elapsed time is " + dt.TotalSeconds ); + + } + +} + +Actual Results: [EMAIL PROTECTED]:~/Palm> mono TestDoubleLoop.exe +Elapsed time is 1.908975 [EMAIL PROTECTED]:~/Palm> mono TestDoubleLoop.exe +Elapsed time is 1.911724 + + +Expected Results ( running on AMD Athlon 2000+): [EMAIL PROTECTED] Palm]$ mono TestDoubleLoop.exe +Elapsed time is 0.032013 [EMAIL PROTECTED] Palm]$ mono TestDoubleLoop.exe +Elapsed time is 0.032087 + + + +How often does this happen? +Always + +Additional Information: +Version Mono : 1.1.17.1 _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
