[Mono-bugs] [Bug 535425] Slow performance of <string>.Contains(), <string>.BeginsWith etc. Compared to MS'.NET runtime

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http://bugzilla.novell.com/show_bug.cgi?id=535425

User joncham at gmail.com added comment
http://bugzilla.novell.com/show_bug.cgi?id=535425#c4





--- Comment #4 from Jonathan Chambers <joncham at gmail.com>  2009-09-28 19:33:04 MDT ---
Created an attachment (id=320192)
 --> (http://bugzilla.novell.com/attachment.cgi?id=320192)
PATCH using CompareOptions.Ordinal

According to MSDN documentation on Contains: This method performs an ordinal
(case-sensitive and culture-insensitive) comparison.

We were using CompareOptions.None. This patch takes my test case from 114520 ms
to 2944 ms. This is in Linux on a virtual machine. I don't have a recent build
of mono on Windows handy, but with .Net on the same machine I get 1888 ms.

Anyone have a quick suggestion to test whether the MSDN documentation is
correct?

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