Zend Cache Review - What's the increase? (
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When it comes to a product such as the Zend Cache its hard to measure an actual speed
increase the end user will receive, because it depends on the type of script is being run.
When running an extremely long script (many lines of code), with little in the way
of execution time (database transactions, socket access, etc.) than the Zend Cache can
increase the performance of your script by tenfold. However, if you spend a lot of time
in the execution phase, then the cache will still improve the speed of your scripts, but
the increase will not be as signifigant.
Still, I ran some "un-official" tests on my laptop (PIII 733 MHz, 128mb ram, Linux,
Apache, PHP, Zend Cache, MySQL), on a variety of scripts, some which would be taxing
as far as execution time was concerned and not so heavy in regards to compile time, and
some which were taxing on compile time, but required very little in the way of
execution time and then some which were a balance between the two. Overall, I found
out that the Zend Cache provided an average increase in the speed of my scripts of
63.43%. Which I found to be a quite acceptable speed increase, considering that some
of the scripts I tested were almost purely execution time. In fact I'd wager that on
most systems with larger scripts, you should be seeing something like a 100 - 200 %
speed increase when using the Zend Cache (maybe more!)
