Comments on: Poor Performance with DateTime.Parse() http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/ Thu, 17 May 2012 13:18:37 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Repliche 133 Gmt Automatic Orologi http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-303057 Repliche 133 Gmt Automatic Orologi Wed, 07 Dec 2011 14:11:55 +0000 http://johnnycoder.com/blog/?p=55#comment-303057 I am often to running a blog and i really appreciate your content. The article has really peaks my interest. I'm going to bookmark your site and keep checking for brand spanking new information. <a href="http://www.black-sabbath.com/vb/member.php?22019-uaavb" rel="nofollow">Repliche J12 12P Ruby Orologi</A> I am often to running a blog and i really appreciate your content. The article has really peaks my interest. I’m going to bookmark your site and keep checking for brand spanking new information. Repliche J12 12P Ruby Orologi

]]> By: date advice http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-283098 date advice Tue, 15 Nov 2011 21:15:01 +0000 http://johnnycoder.com/blog/?p=55#comment-283098 Thus , merely by make use of items the whole thing, the complete planet could be described as delivered electronically a little bit far more. In which sometimes holds the specific And also carbon undoubtedly pumped back to conditions more than these manufacturing debt settlements. every day deal livingsocial discount baltimore washington Thus , merely by make use of items the whole thing, the complete planet could be described as delivered electronically a little bit far more. In which sometimes holds the specific And also carbon undoubtedly pumped back to conditions more than these manufacturing debt settlements. every day deal livingsocial discount baltimore washington

]]> By: chiropractor ahwatukee http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-279432 chiropractor ahwatukee Sat, 12 Nov 2011 23:53:52 +0000 http://johnnycoder.com/blog/?p=55#comment-279432 Howdy! This is my 1st comment here so I just wanted to give a quick shout out and say I genuinely enjoy reading your articles. Can you recommend any other blogs/websites/forums that deal with the same subjects? Thank you! Howdy! This is my 1st comment here so I just wanted to give a quick shout out and say I genuinely enjoy reading your articles. Can you recommend any other blogs/websites/forums that deal with the same subjects? Thank you!

]]> By: San Felipe Vacation http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-277070 San Felipe Vacation Thu, 10 Nov 2011 10:41:07 +0000 http://johnnycoder.com/blog/?p=55#comment-277070 I just couldn't go away your site before suggesting that I really loved the usual information a person supply to your visitors? Is going to be again regularly in order to investigate cross-check new posts. I just couldn’t go away your site before suggesting that I really loved the usual information a person supply to your visitors? Is going to be again regularly in order to investigate cross-check new posts.

]]> By: Pearly Buenviaje http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-276573 Pearly Buenviaje Wed, 09 Nov 2011 10:44:42 +0000 http://johnnycoder.com/blog/?p=55#comment-276573 Wow! This could be one particular of the most beneficial blogs We've ever arrive across on this subject. Actually Fantastic. I'm also an expert in this topic so I can understand your hard work. Wow! This could be one particular of the most beneficial blogs We’ve ever arrive across on this subject. Actually Fantastic. I’m also an expert in this topic so I can understand your hard work.

]]> By: bgriswold http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-83 bgriswold Thu, 26 Oct 2006 15:32:45 +0000 http://johnnycoder.com/blog/?p=55#comment-83 No worries, Andy. I'm using plenty of plugins, but I'm not sure they contribute to the overall look of the site. I'll put an article together outlining the details later today. Thanks for the interest. No worries, Andy. I’m using plenty of plugins, but I’m not sure they contribute to the overall look of the site. I’ll put an article together outlining the details later today. Thanks for the interest.

]]> By: bgriswold http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-82 bgriswold Thu, 26 Oct 2006 15:28:00 +0000 http://johnnycoder.com/blog/?p=55#comment-82 Adam, thanks for drilling into the details. I appreciate the feedback. (And sorry your comment didn’t post immediately. Since you included more than one link it was held for moderation temporarily. I’m going to have to work on this because if you are anything like me you like instant gratification and would like to see your comments immediately.) Thanks again. Adam, thanks for drilling into the details. I appreciate the feedback. (And sorry your comment didn’t post immediately. Since you included more than one link it was held for moderation temporarily. I’m going to have to work on this because if you are anything like me you like instant gratification and would like to see your comments immediately.) Thanks again.

]]> By: bgriswold http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-81 bgriswold Thu, 26 Oct 2006 15:26:53 +0000 http://johnnycoder.com/blog/?p=55#comment-81 We'd hadn't tried it out but it's worth a shot. Thanks for the suggestion. We’d hadn’t tried it out but it’s worth a shot. Thanks for the suggestion.

]]> By: Paul Hayman http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-72 Paul Hayman Thu, 26 Oct 2006 10:23:14 +0000 http://johnnycoder.com/blog/?p=55#comment-72 You could also try using a Regular Expression to make sure the data isn't total rubbish, then move on to the TryParse() You could also try using a Regular Expression to make sure the data isn’t total rubbish, then move on to the TryParse()

]]> By: Mladen http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-71 Mladen Thu, 26 Oct 2006 09:18:05 +0000 http://johnnycoder.com/blog/?p=55#comment-71 Have you tried using DateTime.TryParse? It's new in .net 2.0 and it's so much faster than Datetime.Parse Have you tried using DateTime.TryParse?
It’s new in .net 2.0 and it’s so much faster than Datetime.Parse

]]> By: Andreas Kraus http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-68 Andreas Kraus Thu, 26 Oct 2006 07:17:32 +0000 http://johnnycoder.com/blog/?p=55#comment-68 Hi Johnny, I'm very sorry to be off topic here but I'd like to ask if you use any plugin to display the code in wordpress because it's looking great. Couldn't find any contact form, I would be pleased if you answer me - if you want via e-mail and delete this comment. Cheers Andy Hi Johnny,

I’m very sorry to be off topic here but I’d like to ask if you use any plugin to display the code in wordpress because it’s looking great. Couldn’t find any contact form, I would be pleased if you answer me – if you want via e-mail and delete this comment.

Cheers
Andy

]]> By: Michal Talaga http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-67 Michal Talaga Thu, 26 Oct 2006 06:55:40 +0000 http://johnnycoder.com/blog/?p=55#comment-67 The fact that your solution works faster is probably caused by the fact that you know the format of the date and DateTime.Parse does not - i.e.: it probably takes into consideration local settings, the thread culture etc, while you know exactly what is the date format. Other than that - a nice find! Thanks The fact that your solution works faster is probably caused by the fact that you know the format of the date and DateTime.Parse does not – i.e.: it probably takes into consideration local settings, the thread culture etc, while you know exactly what is the date format.
Other than that – a nice find! Thanks

]]> By: Adam Vandenberg http://johnnycoder.com/blog/2006/10/18/poor-performance-with-datetimeparse/comment-page-1/#comment-64 Adam Vandenberg Thu, 26 Oct 2006 02:55:19 +0000 http://johnnycoder.com/blog/?p=55#comment-64 I found a bottleneck in some work code which turned out to be DateTime.Parse as well. I used the dotTrace profiler (pre-release 2.0) to find the bottleneck: http://www.jetbrains.com/profiler/features/ which showed how much time was being spent in that function. To peak into the function itself to see what's going on, there's always Reflector: http://www.aisto.com/roeder/dotnet/ If you dig into the implementation, there's an internal method "DateTimeParse.Lex" that's doing very complicated token parsing (which in turn calls other lexing methods internally.) Basically, a big mess if you know you're going to get the date in specific format. I found a bottleneck in some work code which turned out to be DateTime.Parse as well.

I used the dotTrace profiler (pre-release 2.0) to find the bottleneck:
http://www.jetbrains.com/profiler/features/
which showed how much time was being spent in that function.

To peak into the function itself to see what’s going on, there’s always Reflector:
http://www.aisto.com/roeder/dotnet/

If you dig into the implementation, there’s an internal method “DateTimeParse.Lex” that’s doing very complicated token parsing (which in turn calls other lexing methods internally.)

Basically, a big mess if you know you’re going to get the date in specific format.

]]>