Comparing WordPress PHP 8 JIT Performance, a real case Given this, WordPress will benefit from JIT compilation only in those WordPress Core functions that are constantly called, but honestly this is far from being considered a CPU-intensive task. JIT works best with CPU-intensive processing like repeated numerical calculations or Big Data analysis. Source: Exploring the New PHP JIT Compiler | Zend by Perforce The JIT Compilation approach in PHP 8 means significantly better performance for numerical calculations and slightly better performance for typical PHP web applications. The PHP8 compilation tests show that JIT would make CPU-intensive workloads run significantly faster. When enabled, the native code of PHP files is stored in an additional region of the OPcache shared memory, and op_array→opcodes.handler(s) keep pointers to the entry points of JIT-ed code.” WordPress Performance with PHP 8 JIT It may be enabled/disabled at PHP compile-time and run-time. “PHP JIT is implemented as an almost independent part of OPcache. The RFC proposal describes JIT as follows: As a result, it can improve the performance of specific functionalities. JIT keeps track of frequently used code and attempts to optimize the machine code translation to reuse it. PHP is an interpreted language, which means it gets translated into machine code as it runs. The most exciting performance feature coming to PHP 8 is JIT, short for “Just In Time” compilation. What Performance Changes Are Coming With PHP 8? Testing My WordPress Site In A Staging Server.A WordPress PHP 8 compatibility checker.WordPress compatibility tools for developers.Is My WordPress Setup Compatible With PHP 8?.Remember WordPress’s Main Bottleneck Is Sometimes Its Database.Is it worth activating PHP 8 JIT for WordPress?.Comparing WordPress PHP 8 JIT Performance, a real case.What Performance Changes Are Coming With PHP 8?.Let’s analyze the main changes and how to get the best PHP 8.2 WordPress compatibility checker. WordPress Core is compatible with PHP 8 since its 5.6 release. Two years later, PHP’s latest version 8.2 offers new features and improvements promising to enhance the security and performance of our WordPress sites. On November 26th, 2020, PHP 8 was released to the world.
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