Performance Regression or Improvement: cogbk_python_batch_load_test_2GB_of_100B_records_with_a_single_key:runtime

[github-actions]

Performance change found in the
test: cogbk_python_batch_load_test_2GB_of_100B_records_with_a_single_key for the metric: runtime.

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Test description: CoGroupByKey Python Load test - 2GB of 100B records with a single key
python | coGBK | 100B records with a single key
Test Link - https://github.com/apache/beam/blob/5e38decf9e723a385057131b01bbd33d8c60bda3/.test-infra/jenkins/job_LoadTests_coGBK_Python.groovy#L32C25-L32C76
Test Dashboard - http://metrics.beam.apache.org/d/fK0U4JqWz/cogbk-load-tests?orgId=1&var-processingType=batch&var-sdk=python&viewPanel=2

timestamp: Wed Jul  3 15:35:49 2024, metric_value: 271.00
timestamp: Tue Jul  2 15:35:39 2024, metric_value: 283.00
timestamp: Mon Jul  1 15:35:57 2024, metric_value: 275.00
timestamp: Sun Jun 30 15:36:28 2024, metric_value: 267.00
timestamp: Sat Jun 29 15:36:19 2024, metric_value: 272.00
timestamp: Fri Jun 28 15:36:45 2024, metric_value: 282.00
timestamp: Thu Jun 27 15:37:13 2024, metric_value: 255.00
timestamp: Wed Jun 26 15:36:03 2024, metric_value: 279.00
timestamp: Tue Jun 25 15:36:20 2024, metric_value: 303.00
timestamp: Mon Jun 24 15:36:06 2024, metric_value: 262.00
timestamp: Sun Jun 23 15:34:42 2024, metric_value: 283.00 <---- Anomaly
timestamp: Sat Jun 22 15:35:49 2024, metric_value: 334.00
timestamp: Fri Jun 21 15:37:13 2024, metric_value: 320.00
timestamp: Thu Jun 20 15:35:00 2024, metric_value: 276.00
timestamp: Wed Jun 19 15:37:26 2024, metric_value: 354.00
timestamp: Tue Jun 18 15:35:04 2024, metric_value: 268.00
timestamp: Mon Jun 17 15:35:24 2024, metric_value: 272.00
timestamp: Sun Jun 16 15:36:10 2024, metric_value: 259.00
timestamp: Sat Jun 15 15:36:02 2024, metric_value: 306.00
timestamp: Fri Jun 14 15:37:16 2024, metric_value: 278.00
timestamp: Thu Jun 13 15:42:04 2024, metric_value: 285.00