PHP 8.1 Release and Performance Benchmark Report
The article announces the official release of PHP 8.1 and presents a detailed performance benchmark conducted on an Ubuntu Linux AMD EPYC 72F3 server, comparing multiple PHP versions and highlighting the roughly 4% speed improvement of PHP 8.1 over its predecessor.
PHP 8.1 has been officially released, accompanied by a performance benchmark report that evaluates the new version against earlier releases.
The tests were run on an Ubuntu Linux server equipped with an AMD EPYC 72F3 processor. All examined versions were rebuilt on the same system using identical packages and build options. Versions compared include PHP 8.1, PHP 8.0.13, PHP 7.4.26, PHP 7.3.33, PHP 7.0.33, and PHP 5.6.40; PHP 7.1 and 7.2 were omitted due to segmentation faults on this stack.
The PHPBench results show a steady performance increase since PHP 5.6, with PHP 8.1 delivering roughly a 4% additional improvement over PHP 8.0 while retaining the stability gains introduced in the 7.x series.
Phoronix Test Suite benchmarks that exercise common operations such as XML parsing and JSON generation reveal that on the same AMD EPYC Linux server, performance from PHP 7.3 to PHP 8.0 is roughly flat, but PHP 8.1 introduces a noticeable uplift, especially compared with earlier PHP 5.x and early 7.x releases.
Rendering tests also confirm that PHP 8.1 continues the positive performance trend, with peak memory usage slightly lower than previous versions, making it a solid step forward for server‑side scripting.
Overall, PHP 8.1 brings valuable language enhancements and incremental performance gains that improve its competitiveness against other scripting languages.
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