Hey there, Has anyone gotten a chance to look into this? :)
Cheers, Bradford On Wed, Sep 10, 2008 at 2:19 PM, Bradford Stephens <[EMAIL PROTECTED]> wrote: > Thanks, I appreciate it. This has the team stumped :) > > On Tue, Sep 9, 2008 at 6:10 PM, Atsushi Eno <[EMAIL PROTECTED]> wrote: >> Hello, >> >> That's interesting. If I have enough time I'll check what are likely >> culprits with modified version of the cases and possibly fix them. >> >> Atsushi Eno >> >> Bradford Stephens wrote: >>> >>> Hello all, >>> >>> It seems that XPath selection is several orders of magnitude slower in >>> Mono 2.0 on Ubuntu than on C# on Windows XP. >>> >>> The example below is pretty straightforward, and doesn't seem like >>> it's much slower, but we do this millions of times a day. In some >>> cases, I've seen parsing a document go from 10 ms on Windows to over >>> 2000 ms on Mono 2.0/Linux. >>> >>> I've made a Mono Project to let you test it yourselves: >>> http://www.giborama.com/TestSlowXML.tar >>> >>> I've advocated the switch of our company's platform from Windows to >>> Linux, but XML/XPath is an essential part of the business, and with it >>> being so slow, we're dead in the water. >>> >>> I would greatly appreciate any help you may have :) >>> >>> ~~~~ >>> >>> Windows XP / C# 2005: >>> >>> Xpath: //head/title took 2 >>> Xpath: //[EMAIL PROTECTED] 'content']/div[starts-with (@id, 'p')] took 0 >>> Xpath: .//h2/a took 0 >>> Xpath: .//[EMAIL PROTECTED] 'byline']/a[position()=1] took 0 >>> Xpath: .//[EMAIL PROTECTED] 'byline'] took 1 >>> Xpath: .//h2 took 0 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')] took 0 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')]//img took 0 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')]//a took 0 >>> Xpath: //[EMAIL PROTECTED] 'paging']/[EMAIL PROTECTED] 'alignright >>> arrowforward'] took 0 >>> >>> >>> Ubuntu / Mono 2.0: >>> >>> Xpath: //head/title took 24 >>> Xpath: //[EMAIL PROTECTED] 'content']/div[starts-with (@id, 'p')] took 8 >>> Xpath: .//h2/a took 1 >>> Xpath: .//[EMAIL PROTECTED] 'byline']/a[position()=1] took 5 >>> Xpath: .//[EMAIL PROTECTED] 'byline'] took 3 >>> Xpath: .//h2 took 1 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')] took 5 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')]//img took 5 >>> Xpath: .//[EMAIL PROTECTED] 'post']/div[starts-with (@id, 'pc')]//a took 5 >>> Xpath: //[EMAIL PROTECTED] 'paging']/[EMAIL PROTECTED] 'alignright >>> arrowforward'] took 8 >>> >>> Cheers, >>> Bradford >>> _______________________________________________ >>> Mono-list maillist - [email protected] >>> http://lists.ximian.com/mailman/listinfo/mono-list >>> >> >> > _______________________________________________ Mono-list maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-list
