[TYPO3-dev] Testing TYPO3 caching vs. [FE][pageCacheToExternalFiles]

[Michael Scharkow]

Dmitry Dulepov wrote:

> 1. Should not be the case on Linux, file will be in OS buffers already.
> 2. If I request static file (test.txt, couple of kilobytes), I get over
> 1000 rq/s, if I request typo3 static page I get around 9. See the
> difference?

You can easily test how much overhead calling PHP is if you simply test 
a PHP script that does *nothing* but sending a file to the browser.

<?php
readfile('test.txt');
?>

I get around 10 times (!) more req/s for the above compared to plain 
TYPO3 3.8 with only hello world content. (590 vs 56 req/s).

So there should be enormous possibilities of just serving cached files 
from the filesystem, but this has to be done at a most early stage 
because otherwise TYPO3 eats all performance. Since we're faced with 
some variables (fe user logged in, maybe browser conditions), a simple 
solution would be to simply hash the request URL with some notorious 
parameters (set in localconf.php), and send a file with name=hash.

This architecture would scale really well because you could 
transparently change to memcached or whatever.

Greetings,
Michael