Performance Regression or Improvement: cogbk_python_batch_load_test_reiterate_4times_2MB_values:runtime

[github-actions]

Performance change found in the
test: cogbk_python_batch_load_test_reiterate_4times_2MB_values for the metric: runtime.

For more information on how to triage the alerts, please look at
Triage performance alert issues section of the README.

Test description: CoGroupByKey Python Load test - reiterate 4 times 2 MB values
python | coGBK | reiteration 2MB value
Test Link -

beam/.test-infra/jenkins/job_LoadTests_coGBK_Python.groovy

Line 128 in 5e38dec

test : 'apache_beam.testing.load_tests.co_group_by_key_test',

Test Dashboard - http://metrics.beam.apache.org/d/fK0U4JqWz/cogbk-load-tests?orgId=1&var-processingType=batch&var-sdk=python&viewPanel=5

timestamp: Sat Jun 27 16:38:33 2026, metric_value: 69.00
timestamp: Fri Jun 26 16:47:16 2026, metric_value: 57.00
timestamp: Thu Jun 25 16:58:27 2026, metric_value: 55.00
timestamp: Wed Jun 24 16:46:02 2026, metric_value: 64.00 <---- Anomaly
timestamp: Tue Jun 23 17:02:39 2026, metric_value: 81.00
timestamp: Mon Jun 22 17:41:24 2026, metric_value: 85.00
timestamp: Sun Jun 21 16:43:12 2026, metric_value: 118.00
timestamp: Sat Jun 20 16:37:17 2026, metric_value: 99.00
timestamp: Fri Jun 19 17:06:09 2026, metric_value: 109.00
timestamp: Thu Jun 18 17:15:16 2026, metric_value: 81.00
timestamp: Wed Jun 17 17:21:10 2026, metric_value: 80.00
timestamp: Tue Jun 16 17:43:45 2026, metric_value: 80.00
timestamp: Mon Jun 15 17:43:46 2026, metric_value: 92.00
timestamp: Sun Jun 14 16:41:06 2026, metric_value: 242.00