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experiment: calibrate CodSpeed by introducing a known regression
#5
Closed
Comparing
experiment/codspeed-calibration
(
0589cd0
) with
main
(
fe558c8
)
CodSpeed Performance Gauge
-79%
Regression
2
Untouched
4
Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments, which may affect the accuracy of the results.
Learn more about regression causes
.
Benchmarks
Mode
CPU Simulation
Wall Time
Memory
Status
Regression
Untouched
6 total
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_branch_benchmark[run_main]
pytests/operators/test_branch.py
CodSpeed Performance Gauge
-79%
464.2 ms
2,172.5 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_branch_benchmark[cluster_main-1thread]
pytests/operators/test_branch.py
CodSpeed Performance Gauge
-78%
487.1 ms
2,221.3 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_flat_map_batch_benchmark[cluster_main-1thread]
pytests/operators/test_flat_map_batch.py
CodSpeed Performance Gauge
+1%
404.7 ms
402.2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_fold_window_benchmark[cluster_main-1thread]
pytests/operators/windowing/test_fold_window.py
CodSpeed Performance Gauge
0%
2.4 s
2.4 s
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_fold_window_benchmark[run_main]
pytests/operators/windowing/test_fold_window.py
CodSpeed Performance Gauge
0%
2.3 s
2.3 s
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
test_flat_map_batch_benchmark[run_main]
pytests/operators/test_flat_map_batch.py
CodSpeed Performance Gauge
0%
386.9 ms
387.2 ms
Commits
Click on a commit to change the comparison range
Base
main
fe558c8
-78.63%
experiment: add deterministic slowdown to test_branch_benchmark to calibrate CodSpeed
0589cd0
4 days ago
by ekiourk
© 2026 CodSpeed Technology
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