Benchmarking PHP 7.4.10 vs. PHP 8.0.0 beta4

I executed the Zend\bench.php file using PHP 7.4.10 and PHP 8 beta4.

I used a CPU Intel i9-8950HK at 2.90GHz with 32GB RAM running Ubuntu 18.04.4 LTS.

I compiled PHP 8 beta4 using the official php.net source and installed in /opt/php/php8. I used the following options:

./configure --prefix=/opt/php/php8 --enable-opcache --with-zlib --enable-zip --enable-json --enable-sockets --without-pear

I used the PHP 7.4.10 version using the ppa:ondrej/php repository.

To run the benchmark I used the command as follows:

PHP 7.4.10

php -d opcache.enable_cli=0 Zend/bench.php

php -d opcache.enable_cli=1 Zend/bench.php

/opt/php/php8/bin/php -d opcache.enable_cli=0 Zend/bench.php

/opt/php/php8/bin/php -d opcache.enable_cli=1 Zend/bench.php

/opt/php/php8/bin/php -d opcache.enable_cli=1 -d opcache.jit_buffer_size=128M -d opcache.jit=1235 Zend/bench.php

I run the experiment 5 times for each PHP configuration and I took the average (last row in the table). The time are reported in seconds.

PHP 7.4.10	PHP 7.4.10 + opcache	PHP 8 beta4	PHP 8 beta4 + opcache	PHP 8 beta4 + opcache + JIT (1235)
0.338	0.214	0.312	0.223	0.103
0.336	0.206	0.308	0.218	0.102
0.329	0.197	0.313	0.213	0.100
0.330	0.219	0.306	0.225	0.104
0.337	0.216	0.306	0.207	0.102
-----	-----	-----	-----	-----
0.334	0.210	0.309	0.217	0.102