High CPU usage during cypress run

[stychu]

Current behavior

I just wanted to try the latest version of the Cypress. I updated from 8.1.0 to 9.2.0 and I just got scared when I run my tests because my MacBook fans started to spin like crazy. Like a boeing 727 taking off..

There is clearly some issue regarding the new version of the Cypress (9.2.0) especially on the MacOS.

Desired behavior

Tests running smoothly like on the version 8.1.0 without the HIGH CPU overhead.

Test code to reproduce

I've checked this with my repo and the default use-cases that cypress provides on fresh install

Cypress Version

9.2.0

Other

No response

[stychu]

This is with the version 8.1.0
It oscillates between 40-90 CPU

[Narretz]

Interesting, because 9.2.0 was supposed to fix some instances of high CPU use.
Did you use open or run mode?
And did you check the intermediate versions to find the exact version where it started?

[jkananen]

Same here in run mode, CPU reportedly at >200% (screenshot below), and some tests are failing due to timeouts.

Tried also open mode, which is OK; CPU hovers around 15-40%.

I updated from version 8.3.0 to 9.2.1 when noticing this. I've not tried any versions in between.

macOS Big Sur 11.6.

[jkananen]

Looks to me that this happens after an update from 8.5.0 to 8.6.0.

[stychu]

Interesting, because 9.2.0 was supposed to fix some instances of high CPU use.
Did you use open or run mode?
And did you check the intermediate versions to find the exact version where it started?

It was during the run mode
I didn't check any intermediate version. Straight from 8.1.0 to 9.2.0 as I want to use the newest version of Cypress.

[fabouru1985]

same here with mac mini m1
cypress 9.3.1

[jkananen]

Occurs still with 9.5.2, only in run mode

[stychu]

10.3.1 seems still to occur

[stychu]

10.4.0 seems to be working fine now. I can no longer see high CPU usage.

[rjiang9]

I got in `open' mode for cypress v11.02

[rjiang9]