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Type: Bug
Resolution: Unresolved
Priority: Undefined
Fix Version/s: None
Affects Version/s: 4.16.z
Component/s: Telco Performance
Labels:
None

Activity Type:
Quality / Stability / Reliability
Blocked:
False
Blocked Reason:

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None

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None
Story Points:
None
Severity:
Critical
Regression:
None

Target Backport Versions:
None
Target Version:
None
Release Blocker:
None
Sprint:
None

RH Private Keywords:

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

PX Impact Score:

Release Note Status:
In Progress
Release Note Type:
Known Issue
Release Note Text:
There is a known latency issue on 4th Gen Intel Xeon processors.

Escape Reason:
None
Escape Impact:
None
Corrective Measures:
None
SDLC stage when should've been found:
None

SLCM 12 hour latency test suite results against OCP 4.16.27 + HPE DL110 gen11 with fw versions (ilo6 v1.64 + system bios U62 v2.34):

hwlat PASS

Cyclic failed with 127μs, oslat 20μs.

The detailed info could be found from test job https://www.distributed-ci.io/jobs/12836c6f-05c0-4b46-a843-9daeb0bfa4d7/jobStates?sort=date

How reproducible:

Run 12 hours latency test suites.

Steps to Reproduce:

Deploy the SNO with E/// configuration
Run Latency test 12 hours
Collect results

Actual results: 127 for cyclic tests

Expected results: Less than 20

Assignee:: Costa Shulyupin

Reporter:: Jennifer Chen

Need Info From:: None

Contributors:: None

QA Contact:: None

Doc Contact:: Lluis Cavalle

Votes:: 0 Vote for this issue

Watchers:: 14 Start watching this issue

Created:: 2024/12/17 3:55 PM

Updated:: 2025/10/17 9:31 AM