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My question: I have a .php file generate thumbnails on the fly. I have a moderate amount of traffic. Sometimes the gallery(s) shown can list up to 20 or so images, with fairly large thumbnails. Am I causing uneccessary server load by not just making my own thumbnails and having all these galleries generated on the fly?
But basically, all I'm doing is having these images being created on the fly everytime someone new comes around. It's one of these deals:
This format of thumbnail generation is fairly common, I believe.