Re: optimise gd transformations

these are headers in your html document, but I ment the headers you send together with your thumbnails. Preferably you should check if the browser has send you If-modified-since, compare it with filemtime of your 150 thumbnail, and if it has not been modified since, send a 304 Not Modified response. Now you will spare some cpu cycles. electroteque wrote:

with a static version but it keeps the old versions which is why i generate on the fly as the preview is always the newer version here is the expire header <META HTTP-EQUIV="Cache-Control" CONTENT="No-Cache"> <META HTTP-EQUIV="Pragma" CONTENT="No-Cache"> <META HTTP-EQUIV="Expires" CONTENT="0"> but it still wont refresh it "Marek Kilimajer" <kilimajer@webglobe.sk> wrote in message news:3DB66D4D.6060700@webglobe.sk...

Create them once, and you are done. Also make sure to send some expires header, else browser allways tries to fetch a new copy electroteque wrote:

hi there , i ran top to find out how much processing gd2 truecolor transformations take on the cpu, i am getting around 20% x 2 httpd processes, i was wondering how it would be possible to optimise this so i will use less cpu resources ? i am simply generating thumbnails of 70

pixels

of alreayd resized thumbnails of 150 pixels, let me know