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Autoloader: Remove file check to improve performance. #15118

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merged 1 commit into from
Mar 26, 2020
Merged

Autoloader: Remove file check to improve performance. #15118

merged 1 commit into from
Mar 26, 2020

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jeffstieler
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https://github.com/Automattic/jetpack/blob/master/packages/autoloader/src/AutoloadGenerator.php#L68

Since we always optimize, remove expensive file_exists() calls from autoloader.

The current autoloader essentially enforces Composer's Optimization Level 1.

This PR seeks to enforce Optimization Level 2 as well.

In testing WooCommerce + WooCommerce Admin (which both use this autoloader), requests were seeing ~375 calls to file_exists() and spending 1+ seconds wall time. With this change, those numbers are down to ~90 calls and ~0.2 seconds.

I see that a refactor is underway.. this PR maps to this line in the refactor: https://github.com/Automattic/jetpack/pull/15106/files#diff-354912567a0f128335ec5caad8b6e3f8R124

Changes proposed in this Pull Request:

  • Stop checking file_exists() before require_once Jetpack autoloader enqueued classes.

Is this a new feature or does it add/remove features to an existing part of Jetpack?

  • Tweaking the autoloader logic

Testing instructions:

I could use some help defining testing instructions for this PR.

Locally, I manually made these changes to the autoloaders in both WooCommerce and WooCommerce Admin in order to verify the performance improvements.

Proposed changelog entry for your changes:

  • Improve performance of autoloader.

@jeffstieler jeffstieler added [Focus] Performance [Status] Needs Review To request a review from Crew. Label will be renamed soon. [Focus] Jetpack DNA labels Mar 25, 2020
@jeffstieler jeffstieler requested a review from a team as a code owner March 25, 2020 17:45
@github-actions github-actions bot added the [Status] Needs Package Release This PR made changes to a package. Let's update that package now. label Mar 25, 2020
@jeherve jeherve added this to the 8.4 milestone Mar 25, 2020
@jeherve jeherve requested review from kbrown9 and zinigor March 25, 2020 17:47
@jeherve jeherve added the [Type] Enhancement Changes to an existing feature — removing, adding, or changing parts of it label Mar 25, 2020
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Thank you for the great PR description!

When this PR is ready for review, please apply the [Status] Needs Review label. If you are an a11n, please have someone from your team review the code if possible. The Jetpack team will also review this PR and merge it to be included in the next Jetpack release.

Scheduled Jetpack release: April 7, 2020.
Scheduled code freeze: March 31, 2020

Generated by 🚫 dangerJS against 894221d

kbrown9
kbrown9 approved these changes Mar 25, 2020
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This looks good to me! I performed a quick test of the PR by using the updated Autoloader with Jetpack. As expected, no problems occurred.

I'll leave this open for a day in case anyone else wants to take a look at it before merging. When it's merged, we'll make sure this change is included in the new autoloader feature branch that's currently in progress.

@jeffstieler
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Thanks for the quick review @kbrown9!

zinigor
zinigor approved these changes Mar 25, 2020
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Thanks for this PR!

@jeherve jeherve added [Status] Ready to Merge Go ahead, you can push that green button! and removed [Status] Needs Review To request a review from Crew. Label will be renamed soon. labels Mar 26, 2020
jeherve
jeherve approved these changes Mar 26, 2020
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Tests are all good for this PR. Merging.
https://travis-ci.org/github/Automattic/jetpack/builds/666903637

@jeherve jeherve merged commit 348a583 into master Mar 26, 2020
@jeherve jeherve deleted the remove/autoloader-file-exists branch March 26, 2020 07:57
@matticbot matticbot added [Status] Needs Changelog and removed [Status] Ready to Merge Go ahead, you can push that green button! labels Mar 26, 2020
jeherve added a commit that referenced this pull request Mar 31, 2020
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Changelog: add #15118
17db014
jeherve added a commit that referenced this pull request Mar 31, 2020
@jeherve
8.4 Changelog (#15075)
0eb0b35 
* Initial changelog entry

* Changelog: add #14904

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* Changelog: add #15052

* Update to remove Podcast since it remains in Beta

* Changelog: add #14803

* Changelog: add #15028

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* Changelog:add #14886

* Changelog: add #15118

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* Changelog: add #14960

* Changelog: add #15127

* Changelog: add #15056

* Copy current changelog to changelog archive.

* Clarify changelog description
@nerrad nerrad mentioned this pull request Apr 2, 2020
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@sergeymitr sergeymitr mentioned this pull request Apr 8, 2020
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@kbrown9 kbrown9 mentioned this pull request Jun 10, 2020
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@jeherve jeherve removed the [Status] Needs Package Release This PR made changes to a package. Let's update that package now. label Jul 29, 2020
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@zinigor zinigor zinigor approved these changes

@jeherve jeherve jeherve approved these changes

@kbrown9 kbrown9 kbrown9 approved these changes

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Labels
[Focus] Jetpack DNA [Focus] Performance [Package] Autoloader [Type] Enhancement Changes to an existing feature — removing, adding, or changing parts of it
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@jeffstieler @jetpackbot @zinigor @jeherve @kbrown9 @matticbot