I'm marking this confirmed because we see this same behavior at CW MARS after our upgrade to Evergreen 3.0.12 this past weekend. We were seeing checkin taking anywhere from 3 to 10 seconds. After reverting the five commits that implement the tooltip updates, checkin times returned to what was normal before the upgrade.
I made a list of the commits to revert for anyone who wants immediate relief before a fix goes in:
I'm marking this confirmed because we see this same behavior at CW MARS after our upgrade to Evergreen 3.0.12 this past weekend. We were seeing checkin taking anywhere from 3 to 10 seconds. After reverting the five commits that implement the tooltip updates, checkin times returned to what was normal before the upgrade.
I made a list of the commits to revert for anyone who wants immediate relief before a fix goes in:
https:/ /pastebin. com/NHM0PNFh
We have seen the performance degradation from bug 1777207 since before our upgrade, so this is definitely something different.