Chapters

37 Chapters | 3:44:49 |

01

Performance, Profilers and APMs

5:35
02

Blackfire Install: Agent, Probe, Chrome Extension

3:14
03

Installing the Agent, Probe & Chrome Extension

6:26
04

Wall Time, Exclusive Time & Other Wonders

7:47
05

Finding Issues via the Call Graph

6:50
06

Comparisons: Validate Performance Changes, Find Side Effects

3:56
07

Recommendations

6:25
08

Property Caching

8:17
09

Using a Caching Layer & Proving its Worth

4:24
10

The N+1 Problem & EXTRA_LAZY

5:59
11

Fixing N+1 With a Join?

4:38
12

Profile All Requests (Including Ajax)

6:03
13

The Blackfire CLI Tool for AJAX Requests

4:46
14

Profiling Command Line scripts

6:33
15

Timeline: Go Behind-the-Scenes with your Code

7:15
16

Timeline: Finding a Hidden Surprise

4:38
17

Spotting Heavy Object Instantiation

6:06
18

Service Subscribers

6:22
19

Manually Profile (Instrument) Part of your Code

9:04
20

SDK: Automatically Create a Profile

4:43
21

Creating an Automatic Probe Early in your Code

7:57
22

Performance Tests

6:45
23

All about Metrics

9:27
24

Assertions / Profile "Tests"

4:07
25

Blackfire Player

4:47
26

Expectations/Tests with Blackfire Player

6:10
27

Deploying to SymfonyCloud

5:01
28

Database Tricks on SymfonyCloud

8:00
29

Blackfire Environments

7:17
30

Production Profile: Cache Stats & More Recommendations

4:18
31

Automatic Performance Checks: Builds

7:15
32

Builds with Custom Scenarios

5:32
33

Per-Page Time Metrics & Custom Metrics

4:29
34

Testing a Build Compared to the Last Build

7:46
35

Staging Servers on SymfonyCloud

4:46
36

Staging Environment Builds

7:56
37

Blackfire Environment Variables

4:15

> Dev Tools > Blackfire.io: Revealing Performance Secrets with Profiling

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16.

Timeline: Finding a Hidden Surprise

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Dang 3 years ago

Hello, I use the same code (not fixed) and open the blackfire but I don't see the "AgreeToTermsSubscriber:onRequestEvent" under the bar RequestEvent in my timeline. There's only main/agreeUpdatedTerms.html.twig display to recognize that the form is rendered. And in the left timeline metrics, I don't see the symfony.firewall and symfony.routing.router as the video. Is there something changed in the blackfire?

And also, when I submit that form with agree (agreeUpdatedTerms.html.twig), nothing happen and the form will show forever . It seems to me this is a bug because the controller of that agreeUpdatedTerms in MainController was never called. Could you verify that?
Thanks

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weaverryan SFCASTS Dang 3 years ago

Hey @Dang!

Hmm, Blackfire's interface has changed a bit, but let's see what we can figure out :).

I just tried profiling - I'm using the "start" code from the tutorial, so before we fix anything. I also don't see the symfony.firewall , but I do see the symfony.routing.router on the left side. Also, when I profile Symfonycasts on production, I DO see symfony.firewall. My guess is that they're hiding/showing some of these just based on how much time they take - e.g. if they don't take much time, then they're not shown.

I also don't see AgreeToTermsSubscriber:onRequestEvent on the timeline. But again, I think this is because Blackfire is hiding things that aren't taking enough time. Are you logged in when you try this page? The subscriber really only takes a lot of time if the user is currently logged in - so that may be why it's running so quickly and not showing up. That was the case for me: I didn't see it at first. But after logging in, it was back on the timeline!

Cheers!

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This tutorial can be used to learn how to profile any app - including Symfony 5.

Symfony 4

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": "^7.1.3",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "blackfire/php-sdk": "^1.20", // v1.20.0
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "doctrine/annotations": "^1.0", // v1.8.0
        "doctrine/doctrine-bundle": "^1.6.10|^2.0", // 1.11.2
        "doctrine/doctrine-migrations-bundle": "^1.3|^2.0", // v2.0.0
        "doctrine/orm": "^2.5.11", // v2.6.4
        "phpdocumentor/reflection-docblock": "^3.0|^4.0", // 4.3.2
        "sensio/framework-extra-bundle": "^5.4", // v5.5.1
        "symfony/console": "4.3.*", // v4.3.10
        "symfony/dotenv": "4.3.*", // v4.3.10
        "symfony/flex": "^1.9", // v1.21.6
        "symfony/form": "4.3.*", // v4.3.10
        "symfony/framework-bundle": "4.3.*", // v4.3.9
        "symfony/http-client": "4.3.*", // v4.3.10
        "symfony/property-access": "4.3.*", // v4.3.10
        "symfony/property-info": "4.3.*", // v4.3.10
        "symfony/security-bundle": "4.3.*", // v4.3.10
        "symfony/serializer": "4.3.*", // v4.3.10
        "symfony/twig-bundle": "4.3.*", // v4.3.10
        "symfony/validator": "4.3.*", // v4.3.10
        "symfony/webpack-encore-bundle": "^1.6", // v1.7.2
        "symfony/yaml": "4.3.*", // v4.3.10
        "twig/extensions": "^1.5" // v1.5.4
    },
    "require-dev": {
        "doctrine/doctrine-fixtures-bundle": "^3.2", // 3.2.2
        "easycorp/easy-log-handler": "^1.0.7", // v1.0.9
        "fzaninotto/faker": "^1.8", // v1.8.0
        "symfony/browser-kit": "4.3.*", // v4.3.10
        "symfony/css-selector": "4.3.*", // v4.3.10
        "symfony/debug-bundle": "4.3.*", // v4.3.10
        "symfony/maker-bundle": "^1.13", // v1.14.3
        "symfony/monolog-bundle": "^3.0", // v3.5.0
        "symfony/phpunit-bridge": "^5.0", // v5.0.3
        "symfony/stopwatch": "4.3.*", // v4.3.10
        "symfony/var-dumper": "4.3.*", // v4.3.10
        "symfony/web-profiler-bundle": "4.3.*" // v4.3.10
    }
}

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