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Document opcache.huge_code_pages prerequisites when JIT is on #4861

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Document opcache.huge_code_pages prerequisites when JIT is on #4861

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9a2d837
Update ini.xml
nisbet-hubbard Sep 5, 2025
90d9443
Fix IDs
nisbet-hubbard Sep 5, 2025
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6 changes: 5 additions & 1 deletion reference/opcache/ini.xml
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Expand Up @@ -819,7 +819,11 @@
<listitem>
<para>
Enables or disables copying of PHP code (text segment) into HUGE PAGES.
This should improve performance, but requires appropriate OS configuration.
This should improve performance, but requires appropriate OS configuration
to allocate enough HUGE PAGES for the sum of
<link linkend="ini.opcache.memory-consumption">opcache.memory_consumption</link>
and
<link linkend="ini.opcache.jit-buffer-size">opcache.jit_buffer_size</link>.
Available on Linux as of PHP 7.0.0, and on FreeBSD as of PHP 7.4.0.
</para>
</listitem>
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