micro/ops/group_by

PDF of Slope Regression

Additional Statistics:

Lower bound Estimate Upper bound
Slope 5.7207 µs 5.7256 µs 5.7304 µs
R² 0.9981359 0.9982375 0.9981417
Mean 5.7145 µs 5.7203 µs 5.7262 µs
Std. Dev. 22.851 ns 29.834 ns 36.979 ns
Median 5.7141 µs 5.7205 µs 5.7284 µs
MAD 18.530 ns 22.357 ns 29.519 ns

Additional Plots:

Understanding this report:

The plot on the left displays the average time per iteration for this benchmark. The shaded region shows the estimated probability of an iteration taking a certain amount of time, while the line shows the mean. Click on the plot for a larger view showing the outliers.

The plot on the right shows the linear regression calculated from the measurements. Each point represents a sample, though here it shows the total time for the sample rather than time per iteration. The line is the line of best fit for these measurements.

See the documentation for more details on the additional statistics.

Change Since Previous Benchmark

Additional Statistics:

Lower bound Estimate Upper bound
Change in time +8.4281% +8.8524% +9.2621% (p = 0.00 < 0.05)
Performance has regressed.

Understanding this report:

The plot on the left shows the probability of the function taking a certain amount of time. The red curve represents the saved measurements from the last time this benchmark was run, while the blue curve shows the measurements from this run. The lines represent the mean time per iteration. Click on the plot for a larger view.

The plot on the right shows the two regressions. Again, the red line represents the previous measurement while the blue line shows the current measurement.

See the documentation for more details on the additional statistics.