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@ezimuel
Created Jul 15, 2020
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Benchmarking PHP 8 alpha2

Benchmarking PHP 7.4.7 vs. PHP 8 alpha2

I executed the Zend\bench.php file using PHP 7.4.7 and PHP 8 alpha2.

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

I compiled PHP 8 alpha2 using the official php.net source and installed in /opt/php/php8. I used the following configure options:

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

I used the PHP 7.4.7 version using the ppa:ondrej/php repository.

To run the benchmark I used the command as follows:

PHP 7.4.7

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

PHP 7.4.7 + opcache

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

PHP 8 alpha2

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

PHP 8 alpha2 + opcache

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

PHP 8 alpha2 + JIT (1235)

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

Results

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 PHP 7.4 + opcache PHP 8 alpha 2 PHP 8 alpha2 + opcache PHP 8 alpha 2 + JIT (1235)
0.315 0.191 0.283 0.196 0.089
0.316 0.190 0.289 0.191 0.104
0.315 0.221 0.284 0.194 0.093
0.323 0.185 0.28 0.202 0.089
0.317 0.193 0.303 0.190 0.091
----- ----- ----- ----- -----
0.317 0.196 0.288 0.195 0.093
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