App: Investigate the cause of the Performance Regression for 'Open Search Page TTI'

Recently, we’ve seen a slew of Performance Regressions getting red-flagged for the ‘Open Search Page TTI’ flow.

We first saw the uptick in time occur somewhere around the merging of these PRs:

We tried reverting Fix miss-matched SMS email suffix on sign in page #15351 (PR) to no avail. And we DID revert replace onModalHide with onDismiss for the web #15298. Again no help.

So now we’re very confused about where this regression is coming from. @roryabraham has graciously created the ability to run the E2E tests on a specific branch a la carte. So we’re going to try and use that to simulate git bisect essentially to figure out the offending PR / commit.

In the meantime we’ve decided to not block the deploy on this. However, to close this issue we should be getting the Open Search Page TTI back to around ~600ms. Currently it’s regressed to ~660-700ms

cc @Expensify/mobile-deployers

About this issue

  • Original URL
  • State: closed
  • Created a year ago
  • Comments: 32 (24 by maintainers)

Most upvoted comments

@hannojg just reopened the issue and assigned it to you