PHP 5.4 - A picture is worth 140 chars

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5 pointslonnyk5 comments

Was it just that before upgrading they weren't using APC? Obviously, using opcode cache would improve performance... http://2bits.com/articles/php-op-code-caches-accelerators-a-...

Somewhere in the twitter conversation he says he used APC both times.

Wow, that's quite a performance gain. Does PHP 5.4 honestly offer that big of a performance improvement? I knew of the performance improvements, but that's almost unbelievable. I have to upgrade to 5.4, but this is compelling me to do it right now!

There are performance improvements, but the graph is actually pretty extreme.

If you read the full discussion on twitter he reveals that it isn't a web server, but a server running CLI scripts constantly. It is entirely possible there was a performance improvement in one thing that was constantly running and it may not actually be an accurate representation of overall performance improvement in PHP 5.4.

Usually not that much, but still significant. My own Silex app had response times reduced by 1/3, and memory usage dropped by almost half.

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