Browser performance capture (trace)

This document (000021614) is provided subject to the disclaimer at the end of this document.

Environment

Rancher 2.9.x+

Situation

Rancher support might request a Browser performance capture to analyze possible issues.

Resolution

use Google Chrome Browser
log out from Rancher, if possible, and reload a blank page
open the Developer tools (F12 or ⋮ → More Tools → Developer Tools)
open the Performance tab
check the Screenshots and Memory checkboxes (on the right in the first row under the tabs)
navigate to the page where the problem manifests
- in particular, if the slowness issue manifests when navigating to a page, then stop at the page immediately before that (the one that contains the link or button leading to the slow-loading page)
start recording (double circle icon on the left of checkboxes)
reload the page (e.g. CTRL+R)
click on the slow link/button or otherwise reproduce the issue
if any task needs to finish, wait an additional ~10 seconds after it is finished
stop recording
export the result by saving the trace with the downward pointing arrow button at the right of the record button

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.