rlerdorf / opcache-status

A one-page opcache status page

OPcache Status

A one-page opcache status page for the PHP 5.5 opcode cache.

You don't need the opcode cache installed to help out with this. See the data-sample.php file for a dump of the data.

I know it is rather ugly, so please spruce it up. But I would like to keep it relatively small and to a single file so it is easy to drop into a directory anywhere without worrying about separate css/js/php files.

TODO

• The ability to sort the list of cached scripts by the various columns
• A better layout that can accommodate more of the script data without looking cluttered
• A tuning suggestion tab (need to add a couple of things to the opcache output first though)

opcache-status's Issues

Warnings on scripts tab when empty

PHP 5.6.11

Warning: asort() expects parameter 1 to be array, null given in /srv/opcache.php on line 109
Warning: Invalid argument supplied for foreach() in /srv/opcache.php on line 122

Cannot redeclare opcache_get_status()

php --syntax-check /opcache/data-sample.php
PHP Fatal error: Cannot redeclare opcache_get_status() in /opcache/data-sample.php on line 446

PHP 5.5.22 (cli) (built: Mar 5 2015 23:04:39)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend Technologies

When all values are zero, the graph disappears and never comes back

If all values (Memory, Manual, and Keys on Restarts) are zero, the graph disappears and never comes back even when looking at other values that are non-zero.

High cpu usage on tab switch

Firefox console displays warning:
mutating the [[Prototype]] of an object will cause your code to run very slowly; instead create the object with the correct initial [[Prototype]] value using Object.create

...{Yi=r}var Ii=[].proto?function(t,n){t.proto=n}:function(t,n){for(var e i...
in file d3.v3.min.js.

and indead when you click on a tab cpu spikes to 10-16%, just to switch a tab. on a Quad core i7 CPU.
I don't think that much cpu is needed just to hide and show a div, it should be snappy and fast.

'opcache.max_wasted_percentage' wrong units

Setting opcache.max_wasted_percentage to 5 seems to display 0.05 in the script, presumably because that's how PHP stores the value. I think multiplying it by 100 to restore the original meaning would be a good idea.

Slashes problem in Windows

Currently I use the windows 10 x64 OpenServer and I have a problem with slashes in JSON.parse().

VM444:1 Uncaught SyntaxError: Unexpected token D in JSON at position 10
    at JSON.parse (<anonymous>)
    at (index):477

Page source:

root = JSON.parse('{"name":"\\D:\\OpenServer\\domains\\opcache-status","children":[{"name":"vendor","children":[{"name":"rlerdorf","children":[{"name":"opcache-status","children":[{"name":"opcache.php","size":54152}]}]}]},{"name":"index.php","size":712}]}');

My solution:

root = JSON.parse('<?php echo json_encode(str_replace('\\', '/', $dataModel->getD3Scripts())); ?>');

Result:

root = JSON.parse('{"name":"\/D:\/OpenServer\/domains\/opcache-status","children":[{"name":"vendor","children":[{"name":"rlerdorf","children":[{"name":"opcache-status","children":[{"name":"opcache.php","size":54464}]}]}]},{"name":"index.php","size":712}]}');

Add metadata and make releases

Please add some notes in the single php file:

/**
 * opcache-status
 * 1.0
 * A one-page opcache status page for the PHP 5.5 opcode cache.
 * https://github.com/rlerdorf/opcache-status
 */

Or you can go php-doc.

Submit opcache-status to Packagist

Could you please submit this package to Packagist? (https://packagist.org/)

Then we would not have to specify a "repositories" entry in our "composer.json".

Order scripts

Would be great if the scripts tab allowed you to order it by memory or hits.

It shows Scripts (1), what does it mean?

I copied the file on the root of my magento site, but all i see
Scripts (1)
/home/mystore/public_html/opcache.php
Does it mean opcache is not working? i checked the phpinfo and it shows it's up & running!

implement invalidation

simple button what would call opcache_reset()

use https for external resources

Change
src="//cdnjs.cloudflare.com/ajax/libs/d3/3.0.1/d3.v3.min.js"
src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"
for
src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.0.1/d3.v3.min.js"
src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"

What license is the opcache-status source released under

Can I humbly suggest something like the MIT or BSD license.

Great project!

Notice during opcache restart

The following function in the opcache.php script generates a PHP notice during an OpCache restart:

public function getScriptStatusCount() {
return count($this->_status["scripts"]);
}

The 'scripts' key is not set when an opcache restart is pending after calling opcache_reset().

Sorting on Scripts Table

Filter problem

I have an error with a filter function.

Uncaught TypeError: Cannot read property 'filter' of undefined
    at HTMLInputElement.change ((index):412)
    at HTMLInputElement.u [as __onchange] (d3.v3.min.js:1)

function change() {
    // Filter out any zero values to see if there is anything left
    var remove_zero_values = dataset[this.value].filter(function(value) {
        return value > 0;
    });
...

My solution:

if (dataset[this.value] !== undefined) {
    var remove_zero_values = dataset[this.value].filter(function(value) {
        return value > 0;
    });
} else {
    var remove_zero_values = [];
}

PHP-parsed .html files are not listed, are they cached?

Most files on our site are named as .html files but are actually PHP code and parsed as such. The web server is correctly running them through PHP, however, the OpCache status page lists only .php files on its Scripts tab. Is OpCache only listing .php files? Or are .html files not being cached, and if so why not if they are being run through PHP? It's been a long time since I looked but I don't recall APC excluding those on our old server...

[RFC] Show warnings on risky configurations

Today I found out about what opcache.interned_strings_buffer does. Seems there isn't much documentation about this.

It would be great if the status page is able to give the user some warnings about poor/non-optimal configuration parameters. Examples of these warnings could be:

• Your opcache.memory_consumption is almost out of memory, we suggest to raise it.
• Your opcache.interned_strings_buffer is almost out of memory, we suggest to raise it.
• There aren't many free keys, we suggest to raise opcache.max_accelerated_files.
• You have a lot of wasted memory, maybe you can do to solve it.

Maybe this isn't something the status page should do, but would be great if so.