Bug #66472 [Fbk->NoF]: Add extra outputs to opcache_get_status() to enable table sizing

From: Date: Tue, 30 Dec 2014 10:42:19 +0000
Subject: Bug #66472 [Fbk->NoF]: Add extra outputs to opcache_get_status() to enable table sizing
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-189456@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=66472&edit=1

 ID:               66472
 Updated by:       php-bugs@lists.php.net
 Reported by:      Terry at ellisons dot org dot uk
 Summary:          Add extra outputs to opcache_get_status() to enable
                   table sizing
-Status:           Feedback
+Status:           No Feedback
 Type:             Bug
 Package:          opcache
 Operating System: N/
 PHP Version:      master-Git-2014-01-12 (Git)
 Private report:   N

 New Comment:

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.


Previous Comments:
------------------------------------------------------------------------
[2014-02-21 08:49:43] dmitry@php.net

I've added information about interned strings into phpinfo() and opcache_get_status().

However I didn't add information about ZCSG(include_path).

A also don't think that opcache_dump_interned_strings() is useful.

------------------------------------------------------------------------
[2014-02-19 16:00:55] Terry at ellisons dot org dot uk

jpauli, I don't think that your proposal is the way to go:

1) Interned String pool exhaustion: this fails safe to not using interned strings.  Raising warnings
that the pool is full will fill the error log without value.  If the sysadmins want to monitor this
then some form of extended status is quite adequate.

2) I don't like the idea of adding a opcache_dump_interned_strings() function as this makes all
interned strings available to the caller. This introduces a potential exploitable vulnerability.  At
a minium, this should be subject to a validate_api_restriction() check.

------------------------------------------------------------------------
[2014-02-19 14:37:09] jpauli@php.net

I have some ideas as well, here : https://github.com/jpauli/ZendOptimizerPlus/compare/interned_string_patch

------------------------------------------------------------------------
[2014-01-12 15:44:00] Terry at ellisons dot org dot uk

Description:
------------
Sysadmins currently need to set various table sizes explicitly using the OPcache INI parameters, but
they have no means of knowing the current sizes.  This is a simple patch to add the extra field
reporting to the opcache_get_status() output to allow them to do this properly.  

The key table here is the interned_strings pool, but I've also added ZCSG(include_paths)
reporting.

Note that ZendAccelerator.c nominally allocates 32 slots for the ZCSG(include_paths) table but in
fact this is rounded up to the prime value 53, so the ZCSG(include_paths) short prefix is infact
[A-Z\[\\\]^_`a-u].



------------------------------------------------------------------------



--
Edit this bug report at https://bugs.php.net/bug.php?id=66472&edit=1


Thread (5 messages)

« previous php.bugs (#189456) next »