Hi all,
there is no description to be found about what the value of
realpath_cache_size actually is.
Is it
a) max number of files/dirs in the cache or
b) overall cache size?
I checked php.ini samples distributed with PHP 5.5.3, and documentation
here:
http://php.net/realpath-cache-size
Can please someone here provide an answer?
Documentation and php.ini update would be nice too :)
b.
Hi all,
there is no description to be found about what the value of
realpath_cache_size actually is.Is it
a) max number of files/dirs in the cache or
b) overall cache size?I checked php.ini samples distributed with PHP 5.5.3, and documentation
here:
http://php.net/realpath-cache-sizeCan please someone here provide an answer?
Documentation and php.ini update would be nice too :)
This is a little bit complicated.
The size represent the total number of bytes in the overall paths stored +
some garbage.
So if realpath cache stores an entry of say "/tmp/foo/bar.baz", then it
will add 16 bytes to the realpath cache size.
i.e, the longer the paths, the higher the cache size should be.
The formula is located at
http://lxr.php.net/xref/PHP_TRUNK/TSRM/tsrm_virtual_cwd.c#643
The realpath_cache_size() PHP function documentation says "Returns how much
memory realpath cache is using." , and this is actually true, though it
could be more accurate on how this memory is calculated.
The realpath_cache_size INI description is "Determines the size of the
realpath cache to be used by PHP. This value should be increased on systems
where PHP opens many files, to reflect the quantity of the file operations
performed." It's not very specific either, I admit.
Julien.Pauli
Hi all,
there is no description to be found about what the value of
realpath_cache_size actually is.Is it
a) max number of files/dirs in the cache or
b) overall cache size?I checked php.ini samples distributed with PHP 5.5.3, and
documentation
here:
http://php.net/realpath-cache-sizeCan please someone here provide an answer?
Documentation and php.ini update would be nice too :)This is a little bit complicated.
The size represent the total number of bytes in the overall paths stored + some
garbage.
So if realpath cache stores an entry of say "/tmp/foo/bar.baz", then it will
add 16 bytes to the realpath cache size.
i.e, the longer the paths, the higher the cache size should be.
The formula is located at
http://lxr.php.net/xref/PHP_TRUNK/TSRM/tsrm_virtual_cwd.c#643The
realpath_cache_size()PHP function documentation says "Returns how much
memory realpath cache is using." , and this is actually true, though it could be
more accurate on how this memory is calculated. The realpath_cache_size INI
description is "Determines the size of the realpath cache to be used by PHP.
This value should be increased on systems where PHP opens many files, to reflect
the quantity of the file operations performed." It's not very specific either,
I admit.
Julien.Pauli
I've updated the docs for the config option to reflect Julien's explanation, and
added a link to the config option docs from the function docs
On Thu, Sep 5, 2013 at 12:29 PM, Chris Wright chrisw@aquacool.ltd.ukwrote:
On Thu, Sep 5, 2013 at 10:07 AM, Julien Pauli < julienpauli@gmail.com >
wrote:Hi all,
there is no description to be found about what the value of
realpath_cache_size actually is.Is it
a) max number of files/dirs in the cache or
b) overall cache size?I checked php.ini samples distributed with PHP 5.5.3, and
documentation
here:
http://php.net/realpath-cache-sizeCan please someone here provide an answer?
Documentation and php.ini update would be nice too :)This is a little bit complicated.
The size represent the total number of bytes in the overall paths stored
- some
garbage.
So if realpath cache stores an entry of say "/tmp/foo/bar.baz", then it
will
add 16 bytes to the realpath cache size.
i.e, the longer the paths, the higher the cache size should be.
The formula is located at
http://lxr.php.net/xref/PHP_TRUNK/TSRM/tsrm_virtual_cwd.c#643The
realpath_cache_size()PHP function documentation says "Returns how
much
memory realpath cache is using." , and this is actually true, though it
could be
more accurate on how this memory is calculated. The realpath_cache_size
INI
description is "Determines the size of the realpath cache to be used by
PHP.
This value should be increased on systems where PHP opens many files, to
reflect
the quantity of the file operations performed." It's not very specific
either,
I admit.Julien.Pauli
I've updated the docs for the config option to reflect Julien's
explanation, and
added a link to the config option docs from the function docs
Thx Chris, I didn't know if it were worth doing it, but you added the info,
so it is cool. Thank you.
Julien.Pauli