[Clover] Usage on Node 12 exhibits permanent compiler deoptimizations on sustained load

[damienwebdev]

🐞 Bug report

What modules are related to this issue?

• builders
• common
• express-engine

Is this a regression?

Not really.

Description

I have a Node 12 Ng13 app that uses Clover to render pages.

After sustained load of ~5 minutes worth of ~1rq/s, v8 decides to deoptimize some function (I didn't bother to investigate which) and resultingly the render becomes 2.5x times slower permanently until the node process is restarted.

See: nodejs/node#3659

This does not occur on node 14 or node 16.

🔬 Minimal Reproduction

I don't have a great reproduction, but the Github issue linked above does.

🌍 Your Environment

npx ng --version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI: 13.2.6
Node: v12.22.1
Package Manager: npm v6.14.12
OS: linux x64

Angular: 13.2.7
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router, service-worker

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1302.6
@angular-devkit/build-angular   13.2.6
@angular-devkit/core            13.3.6
@angular-devkit/schematics      13.3.6
@angular/cdk                    13.3.7
@angular/cli                    13.2.6
@angular/elements               13.3.9
@angular/localize               13.3.9
@nguniversal/common             13.0.2
@schematics/angular             13.3.6
ng-packagr                      13.3.1
rxjs                            7.5.5
typescript                      4.4.4
webpack                         5.72.1

[alan-agius4]

Node 12 is no longer supported and therefore this is not actionable from our end.

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}