Comments on: cfimage and ImageScaleToFit on Large Images Pegs CPU http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/ Life Through Math, Algorithms and Code Thu, 28 Jul 2011 23:40:58 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: James Moberg http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16922 James Moberg Thu, 28 Jul 2011 23:40:58 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16922 Two years later and nothing has really changed even with CF9. I've found that using CFX_OpenImage rescales images about 75-90% faster and creates images that are about 64-72% smaller than CFImage. Simply getting the image dimensions is about 96% faster. http://www.kolumbus.fi/~kr0626/cfx_openimage/ (NOTE: Only available for Win32) Two years later and nothing has really changed even with CF9. I’ve found that using CFX_OpenImage rescales images about 75-90% faster and creates images that are about 64-72% smaller than CFImage. Simply getting the image dimensions is about 96% faster.
http://www.kolumbus.fi/~kr0626/cfx_openimage/
(NOTE: Only available for Win32)

]]> By: Jay Westercamp http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16129 Jay Westercamp Tue, 18 Aug 2009 20:13:43 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16129 I am too having this problem. Not on http://www.ATVManualStore.com but on a government site I develop for. We are on 8.0.1. Are there any security issues w/ going back down to 8.0? I am going to try the hotfix 2 before we downgrade CF. I am too having this problem. Not on http://www.ATVManualStore.com but on a government site I develop for. We are on 8.0.1. Are there any security issues w/ going back down to 8.0? I am going to try the hotfix 2 before we downgrade CF.

]]> By: mex http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16117 mex Mon, 23 Mar 2009 22:39:46 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16117 Hi Elliott, We have some apps that do a lot of image manipulation, and we had problems with the cf image functions when we upgraded one of our servers to 8.0.1. So we upgraded to cumulative hotfix 1. Then we started getting this problem (100% cpu spikes). We assumed it would be fixed when we recently discovered hotfix 2. Which was buried deep in the adobe site - 6 months later it's still not on the coldfusion 'hotfixes page'? Anyway, we downgraded back to cf 8.0.0, and even under heavy load we don't have any problems with any of the image functions, luckily we don't use anything that is broken in 8.0.0 I'm really dissapointed Adobe couldn't fix this, it's been ages. But if you need performance out of imagescaletofit without sacrificing image quality I'd give 8.0.0 a go :) Cheers Mex Hi Elliott,

We have some apps that do a lot of image manipulation, and we had problems with the cf image functions when we upgraded one of our servers to 8.0.1. So we upgraded to cumulative hotfix 1. Then we started getting this problem (100% cpu spikes).

We assumed it would be fixed when we recently discovered hotfix 2. Which was buried deep in the adobe site – 6 months later it’s still not on the coldfusion ‘hotfixes page’?

Anyway, we downgraded back to cf 8.0.0, and even under heavy load we don’t have any problems with any of the image functions, luckily we don’t use anything that is broken in 8.0.0

I’m really dissapointed Adobe couldn’t fix this, it’s been ages. But if you need performance out of imagescaletofit without sacrificing image quality I’d give 8.0.0 a go :)

Cheers
Mex

]]> By: Elliott http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16116 Elliott Sat, 17 Jan 2009 07:25:24 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16116 @Azadi I think they forgot to update the hotfix listing. It does exist: http://kb.adobe.com/selfservice/viewContent.do?externalId=kb403781 @Azadi

I think they forgot to update the hotfix listing. It does exist:

http://kb.adobe.com/selfservice/viewContent.do?externalId=kb403781

]]> By: Seb Duggan http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16115 Seb Duggan Thu, 15 Jan 2009 10:53:20 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16115 Much as I wanted to love the cfimage features in CF8, once I started using it on a production site where users would upload images which were then resized, I went straight back to Efflare's ImageCR. So much faster... I do however use cfimage to create CAPTCHAs. Much as I wanted to love the cfimage features in CF8, once I started using it on a production site where users would upload images which were then resized, I went straight back to Efflare’s ImageCR. So much faster…

I do however use cfimage to create CAPTCHAs.

]]> By: Azadi Saryev http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/comment-page-1/#comment-16114 Azadi Saryev Thu, 15 Jan 2009 05:11:56 +0000 http://www.elliottsprehn.com/blog/2009/01/14/cfimage-and-imagescaletofit-on-large-images-pegs-cpu/#comment-16114 I had (and still have) the same issue, I believe... imageScaleToFit() function in CF8 with HF1 and CFIMAGE HF crashes the server every time on large jpeg images. I ended up un-installing both HF1 and CFIMAGE hotfix, which solved imageScaleToFit crashing, but, of course, re-introduced the image locking bug... but there is a work-around for that out there (http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=1&catid=7&threadid=1358449). I have posted the issue in HoF cf-talk list a while ago with more details: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:57440 I do not see HF2 on the cf hotfixes page on adobe.com... where did you get it (if it is not a typo in your prod server specs)? Azadi I had (and still have) the same issue, I believe…
imageScaleToFit() function in CF8 with HF1 and CFIMAGE HF crashes the server every time on large jpeg images. I ended up un-installing both HF1 and CFIMAGE hotfix, which solved imageScaleToFit crashing, but, of course, re-introduced the image locking bug… but there is a work-around for that out there (http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=1&catid=7&threadid=1358449).
I have posted the issue in HoF cf-talk list a while ago with more details: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:57440

I do not see HF2 on the cf hotfixes page on adobe.com… where did you get it (if it is not a typo in your prod server specs)?

Azadi

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