(Feel free to update this bug's summary to be more specific.)
Component Readiness has found a potential regression in the following test:

[Monitor:legacy-test-framework-invariants-alerts][bz-etcd][invariant] alert/etcdHighCommitDurations should not be at or above info

Significant regression detected.
Fishers Exact probability of a regression: 100.00%.
Test pass rate dropped from 100.00% to 86.84%.

Sample (being evaluated) Release: 4.22
Start Time: 2026-01-19T00:00:00Z
End Time: 2026-01-26T12:00:00Z
Success Rate: 86.84%
Successes: 33
Failures: 5
Flakes: 0
Base (historical) Release: 4.20
Start Time: 2025-09-21T00:00:00Z
End Time: 2025-10-21T00:00:00Z
Success Rate: 100.00%
Successes: 104
Failures: 0
Flakes: 0

View the test details report for additional context.

Pattern here indicates etcd is really struggling. The masters in this job are using m5.2xlarge, we compared to a similar standard OCP job on AWS and found we're using m6a.xlarge, which is half the vcpus and RAM but was discovered to have half the EBS bandwidth, which would be a direct problem for etcd. We recommend moving to faster disk bandwidth to remedy this problem.

Filed by: dgoodwin@redhat.com