rfc:opcache.no_cache

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rfc:opcache.no_cache [2020/05/23 14:04] – Improve documentation of ini settings, add another example use case tandrerfc:opcache.no_cache [2020/06/13 14:37] – RFC was declined tandre
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 ====== PHP RFC: Opcache optimization without any caching ====== ====== PHP RFC: Opcache optimization without any caching ======
-  * Version: 0.3+  * Version: 0.4
   * Date: 2020-05-16   * Date: 2020-05-16
   * Author: Tyson Andre <tandre@php.net>   * Author: Tyson Andre <tandre@php.net>
-  * Status: Under Discussion+  * Status: Declined
   * Implementation: https://github.com/php/php-src/pull/5504   * Implementation: https://github.com/php/php-src/pull/5504
   * First Published at: https://wiki.php.net/rfc/opcache.no_cache   * First Published at: https://wiki.php.net/rfc/opcache.no_cache
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   * Normally, opcache optimizes a file based only on that one file's contents (this makes it safe to read from cache even when loading a different combination of files). When ''opcache.allow_cache=0'' is used, it may be possible to use all of the class, function, constant, etc. definitions parsed from previously parsed files (to eliminate dead code, inline function calls, etc). https://wiki.php.net/rfc/preload mentioned something similar in the Future Scope.   * Normally, opcache optimizes a file based only on that one file's contents (this makes it safe to read from cache even when loading a different combination of files). When ''opcache.allow_cache=0'' is used, it may be possible to use all of the class, function, constant, etc. definitions parsed from previously parsed files (to eliminate dead code, inline function calls, etc). https://wiki.php.net/rfc/preload mentioned something similar in the Future Scope.
  
-===== Proposed Voting Choices =====+===== Vote =====
  
-Add the ''opcache.allow_cache'' ini setting to support opcode optimization without caching. (Yes/No vote, requiring 2/3 majority)+Voting started on May 30th and ends on June 13th 
 + 
 +<doodle title="Add opcache.allow_cache ini setting to support opcode optimization without caching" auth="tandre" voteType="single" closed="true"> 
 +   * Yes 
 +   * No 
 +</doodle> 
 + 
 +==== If you voted no, why? ==== 
 + 
 +The [[https://wiki.php.net/rfc/opcache.no_cache#discussion|Discussion]] section mentioned alternative approaches to this RFC. This feedback is being gathered if it may be useful for other work on Opcache such as moving optimizations into PHP's core. 
 + 
 +  - I would only vote for optimizations without caching if Opcache's opcode optimizations were moved into core first. 
 +  - I don't want any form of optimization without caching / I think ''opcache.file_cache'' should be used instead 
 +  - I think different ini options/values should be used to do this 
 +  - Other 
 + 
 +<doodle title="If you voted no on opcache.allow_cache, why?" auth="tandre" voteType="multi" closed="true"> 
 +   * 1 
 +   * 2 
 +   * 3 
 +   * 4 
 +</doodle> 
 + 
 +Also, would you be interested in moving opcode optimizations and the JIT out of the zend_extension opcache into PHP's core? 
 + 
 +<doodle title="I would be interested in moving opcode optimizations into core" auth="tandre" voteType="single" closed="true"> 
 +   * Yes 
 +   * No 
 +</doodle>
  
 ===== Changelog ===== ===== Changelog =====
  
 0.2: Previously, the ini setting override to disable caching was ''opcache.no_cache=1''. This was changed to ''opcache.allow_cache=0'' to avoid double negatives and to be consistent with naming of other ini settings such as ''allow_url_fopen'' and ''allow_url_include''. 0.2: Previously, the ini setting override to disable caching was ''opcache.no_cache=1''. This was changed to ''opcache.allow_cache=0'' to avoid double negatives and to be consistent with naming of other ini settings such as ''allow_url_fopen'' and ''allow_url_include''.
 +
 0.3: Fix documentation of changes to ''opcache_get_status()'' 0.3: Fix documentation of changes to ''opcache_get_status()''
 +
 0.4: Improve documentation of ini settings, add another example use case. 0.4: Improve documentation of ini settings, add another example use case.
  
 ===== References ===== ===== References =====
  
-https://externals.io/message/109959 opcache.no_cache prototype: Opcode optimization without caching+https://externals.io/message/109959 "opcache.no_cache prototype: Opcode optimization without caching"
  
 +https://externals.io/message/110187 "[RFC] opcache.no_cache: Opcache optimization without any caching"
rfc/opcache.no_cache.txt · Last modified: 2020/06/13 17:45 by tandre

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