[CWS] remove stack trace debug log in finalize

[paulcacheux]

What does this PR do?

We collected enough stack traces, we can now remove it.

Motivation

Additional Notes

Possible Drawbacks / Trade-offs

Describe how to test/QA your changes

[paulcacheux]

/merge

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[pr-commenter]

Test changes on VM

Use this command from test-infra-definitions to manually test this PR changes on a VM:

inv create-vm --pipeline-id=41354817 --os-family=ubuntu

Note: This applies to commit fde930b

[pr-commenter]

Regression Detector

Regression Detector Results

Run ID: f2a85495-3bdc-436d-933e-0593575dedff Metrics dashboard Target profiles

Baseline: bbfd6c5
Comparison: fde930b

Performance changes are noted in the perf column of each table:

• ✅ = significantly better comparison variant performance
• ❌ = significantly worse comparison variant performance
• ➖ = no significant change in performance

No significant changes in experiment optimization goals

Confidence level: 90.00%
Effect size tolerance: |Δ mean %| ≥ 5.00%

There were no significant changes in experiment optimization goals at this confidence level and effect size tolerance.

Fine details of change detection per experiment

perf	experiment	goal	Δ mean %	Δ mean % CI	links
➖	pycheck_1000_100byte_tags	% cpu utilization	+0.47	[-4.19, +5.13]	Logs
➖	uds_dogstatsd_to_api_cpu	% cpu utilization	+0.34	[-0.55, +1.24]	Logs
➖	tcp_dd_logs_filter_exclude	ingress throughput	-0.00	[-0.01, +0.01]	Logs
➖	uds_dogstatsd_to_api	ingress throughput	-0.00	[-0.00, +0.00]	Logs
➖	idle	memory utilization	-0.00	[-0.04, +0.03]	Logs
➖	file_tree	memory utilization	-0.10	[-0.17, -0.04]	Logs
➖	otel_to_otel_logs	ingress throughput	-0.52	[-1.33, +0.29]	Logs
➖	basic_py_check	% cpu utilization	-1.89	[-4.44, +0.66]	Logs
➖	tcp_syslog_to_blackhole	ingress throughput	-2.69	[-15.34, +9.97]	Logs

Explanation

A regression test is an A/B test of target performance in a repeatable rig, where "performance" is measured as "comparison variant minus baseline variant" for an optimization goal (e.g., ingress throughput). Due to intrinsic variability in measuring that goal, we can only estimate its mean value for each experiment; we report uncertainty in that value as a 90.00% confidence interval denoted "Δ mean % CI".

For each experiment, we decide whether a change in performance is a "regression" -- a change worth investigating further -- if all of the following criteria are true:

1. Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.

2. Its 90.00% confidence interval "Δ mean % CI" does not contain zero, indicating that if our statistical model is accurate, there is at least a 90.00% chance there is a difference in performance between baseline and comparison variants.

3. Its configuration does not mark it "erratic".

[dd-devflow]

🚂 MergeQueue: pull request added to the queue

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