package-command/bin/readme/package-description-post.md

wp profile monitors key performance indicators of the WordPress execution process to help you quickly identify points of slowness.

Save tens of minutes diagnosing slow WordPress sites with wp profile. Because you can easily run it on any server that supports WP-CLI, wp profile compliments Xdebug and New Relic by pointing you in the right direction for further debugging. And, because it's a WP-CLI command, using wp profile means you don't have to install a plugin and deal with the painful dashboard of a slow WordPress site.

First, run wp profile to see metrics for each stage of the WordPress load process:

$ wp profile
+------------+---------+------------+-------------+-------------+------------+--------------+-----------+------------+--------------+---------------+
| stage      | time    | query_time | query_count | cache_ratio | cache_hits | cache_misses | hook_time | hook_count | request_time | request_count |
+------------+---------+------------+-------------+-------------+------------+--------------+-----------+------------+--------------+---------------+
| bootstrap  | 2.0408s | 0.0365s    | 15          | 93.21%      | 412        | 30           | 0.9299s   | 3097       | 0s           | 0             |
| main_query | 0.0123s | 0.0004s    | 3           | 94.29%      | 33         | 2            | 0.0098s   | 79         | 0s           | 0             |
| template   | 0.305s  | 0.0175s    | 179         | 91.02%      | 2636       | 260          | 0.1125s   | 7777       | 0s           | 0             |
+------------+---------+------------+-------------+-------------+------------+--------------+-----------+------------+--------------+---------------+
| total      | 2.3582s | 0.0544s    | 197         | 92.84%      | 3081       | 292          | 1.0522s   | 10953      | 0s           | 0             |
+------------+---------+------------+-------------+-------------+------------+--------------+-----------+------------+--------------+---------------+

Then, use --stage=<stage> to dive into higher fidelity of a particular stage:

$ wp profile --stage=bootstrap
+-------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
| hook              | time    | query_time | query_count | cache_ratio | cache_hits | cache_misses | request_time | request_count |
+-------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
|                   | 0.3558s | 0.0014s    | 1           | 25%         | 1          | 3            | 0s           | 0             |
| muplugins_loaded  | 0.0002s | 0s         | 0           | 50%         | 1          | 1            | 0s           | 0             |
|                   | 0.8075s | 0.0007s    | 6           | 73.68%      | 56         | 20           | 0s           | 0             |
| plugins_loaded    | 0.4271s | 0s         | 0           | 100%        | 138        | 0            | 0s           | 0             |
|                   | 0.0046s | 0s         | 0           | 100%        | 6          | 0            | 0s           | 0             |
| setup_theme       | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
|                   | 0.2401s | 0s         | 0           | 100%        | 26         | 0            | 0s           | 0             |
| after_setup_theme | 0.0007s | 0s         | 0           | 100%        | 4          | 0            | 0s           | 0             |
|                   | 0.0001s | 0s         | 0           | 100%        | 2          | 0            | 0s           | 0             |
| init              | 0.2922s | 0.0016s    | 8           | 96.3%       | 156        | 6            | 0s           | 0             |
|                   | 0.0277s | 0s         | 0           | 100%        | 2          | 0            | 0s           | 0             |
| wp_loaded         | 0.01s   | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
+-------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
| total             | 2.166s  | 0.0037s    | 15          | 84.5%       | 392        | 30           | 0s           | 0             |
+-------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+

Lastly, when you've found a specific hook you'd like to assess, use --hook=<hook>:

$ wp profile --hook=plugins_loaded
+------------------------------------------------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
| callback                                                   | time    | query_time | query_count | cache_ratio | cache_hits | cache_misses | request_time | request_count |
+------------------------------------------------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
| wp_maybe_load_widgets()                                    | 0.0309s | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| wp_maybe_load_embeds()                                     | 0.0001s | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| VaultPress_Hotfixes->protect_jetpack_402_from_oembed_xss() | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| _wp_customize_include()                                    | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| Debug_Bar_Remote_Requests()                                | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| EasyRecipePlus->pluginsLoaded()                            | 0.0029s | 0s         | 0           | 100%        | 4          | 0            | 0s           | 0             |
| Gamajo\GenesisHeaderNav\genesis_header_nav_i18n()          | 0.0007s | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| DS_Public_Post_Preview::init()                             | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| wpseo_load_textdomain()                                    | 0.0006s | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| load_yoast_notifications()                                 | 0.003s  | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| wpseo_init()                                               | 0.101s  | 0s         | 0           | 100%        | 70         | 0            | 0s           | 0             |
| wpseo_frontend_init()                                      | 0.0003s | 0s         | 0           | 100%        | 2          | 0            | 0s           | 0             |
| Black_Studio_TinyMCE_Plugin->load_compatibility()          | 0.0122s | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
| Jetpack::load_modules()                                    | 0.2706s | 0s         | 0           | 100%        | 62         | 0            | 0s           | 0             |
| function(){}                                               | 0s      | 0s         | 0           |             | 0          | 0            | 0s           | 0             |
+------------------------------------------------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+
| total                                                      | 0.4226s | 0s         | 0           | 100%        | 138        | 0            | 0s           | 0             |
+------------------------------------------------------------+---------+------------+-------------+-------------+------------+--------------+--------------+---------------+

Et voila! You've identified some of the sources of slowness.