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warmup.php
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Attached
Created
Sat, Aug 17, 19:52
Size
1 KB
Mime Type
text/x-php
Expires
Mon, Aug 19, 19:52 (2 d)
Engine
blob
Format
Raw Data
Handle
19966489
Attached To
rPH Phabricator
warmup.php
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<?php
/**
* NOTE: This is an ADVANCED feature that improves performance but adds a lot
* of complexity! This is only suitable for production servers because workers
* won't pick up changes between when they spawn and when they handle a request.
*
* Phabricator spends a significant portion of its runtime loading classes
* and functions, even with APC enabled. Since we have very rigidly-defined
* rules about what can go in a module (specifically: no side effects), it
* is safe to load all the libraries *before* we receive a request.
*
* Normally, SAPIs don't provide a way to do this, but with a patched PHP-FPM
* SAPI you can provide a warmup file that it will execute before a request
* is received.
*
* We're limited in what we can do here, since request information won't
* exist yet, but we can load class and function definitions, which is what
* we're really interested in.
*
* Once this file exists, the FCGI process will drop into its normal accept loop
* and eventually process a request.
*/
function
__warmup__
()
{
$root
=
dirname
(
dirname
(
dirname
(
dirname
(
__FILE__
))));
require_once
$root
.
'/libphutil/src/__phutil_library_init__.php'
;
require_once
$root
.
'/arcanist/src/__phutil_library_init__.php'
;
require_once
$root
.
'/phabricator/src/__phutil_library_init__.php'
;
// Load every symbol. We could possibly refine this -- we don't need to load
// every Controller, for instance.
$loader
=
new
PhutilSymbolLoader
();
$loader
->
selectAndLoadSymbols
();
define
(
'__WARMUP__'
,
true
);
}
__warmup__
();
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