I entered into a website and noted the loading time manually for displaying the home page,selecting a particular option in that site, say , it took around 25 seconds.But when i recorded the same above operation in ACT, i noticed that the test duration went upto 1 min 05 seconds for 1 user and 1 iteration.
why is this time lag occuring ? If this occurs, how can we believe that ACT is storing accurate results ?
When you go to a website, there are frequently GIFS and other such things on the website. After the first time you enter that site through your browser, those items are usually stored in your cache for quicker load time thereafter. So, the next time you go to that page, the images are loaded from your pc, rather than downloaded again.
ACT doesn't account for that, and will run a separate get for each image. They happen in a single-threaded manner, which might make it take a little longer, even after factoring in that the images are downloaded EVERY time you hit that page in the script..as ther is no cache.
Try comparing how long it takes your browser to load the page AFTER you totally purge your browsers temp files and cache. Also, you can test your script by eliminating the image GETS, which makes it closer to how long it'd take if you had all the images in your cache.
I prefer 'maliciously mischevious'.
TDAdmin of Evil