Why does ubuntu slow down so much?

Question

PHP

The strongest brakes, I have a computer at home with 6 GB of RAM, Athlone x2 2.8 percent and everything flies perfectly.
And at work they gave 3.6 GiB, Intel® Core™2 Duo CPU E8200 @ 2.66GHz × 2 , Intel® G41 and the computer just dies, netbeans is generally unrealistic to use. but even when netbins closed, it still slows down terribly. What is the problem ? Ubuntu costs 64x

Answer 1

Good afternoon.
If you can solve the problem not with regular expressions, that is, with string functions, then solve with functions.
As for the question here...

// при условии, что бренд будет только на буржуйском
$pattern = "#([a-zA-Z]+)#";

Answer 2

It's more about the video (drivers) than the CPU / RAM

Answer 3

Disable swap first.