Prepare release 0.15.0

[GeorgeHahn]

Release target metrics support & throttle fix (notably impacts the UDP generator)

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[0.15.0]

Added

• Added target metrics support for Go expvars
• Added target metrics support for Prometheus

Fixed

• Fixed throttle behavior for generators that run very quickly

[github-actions]

Regression Detector Results

Run ID: fc8e3e60-5713-4124-8bbf-ee72789a481c
Baseline: 16d30e5
Comparison: c3a479a
Total lading-target CPUs: 4

Explanation

A regression test is an integrated performance test for lading- target in a repeatable rig, with varying configuration for lading- target. What follows is a statistical summary of a brief lading- target run for each configuration across SHAs given above. The goal of these tests are to determine quickly if lading-target performance is changed and to what degree by a pull request.

The table below, if present, lists those experiments that have experienced a statistically significant change in mean optimization goal performance between baseline and comparison SHAs with 90.00% confidence OR have been detected as newly erratic. Negative values mean that baseline is faster, positive comparison. Results that do not exhibit more than a ±5.00% change in their mean optimization goal are discarded. An experiment is erratic if its coefficient of variation is greater than 0.1. The abbreviated table will be omitted if no interesting change is observed.

No interesting changes in experiment optimization goals with confidence ≥ 90.00% and |Δ mean %| ≥ 5.00%.

Fine details of change detection per experiment.

experiment	goal	Δ mean	Δ mean %	confidence	baseline mean	baseline stdev	baseline stderr	baseline outlier %	baseline CoV	comparison mean	comparison stdev	comparison stderr	comparison outlier %	comparison CoV	erratic	declared erratic
apache_common_http_both_directions_this_doesnt_make_sense	ingress throughput	-28.51MiB/CPU-s	-2.47	100.00%	1.13GiB/CPU-s	41.77MiB/CPU-s	551.79KiB/CPU-s	0.0	0.03623	1.1GiB/CPU-s	69.09MiB/CPU-s	912.61KiB/CPU-s	0.0	0.06144	False	False
blackhole_from_apache_common_http	ingress throughput	-28.74MiB/CPU-s	-2.53	100.00%	1.11GiB/CPU-s	67.92MiB/CPU-s	897.28KiB/CPU-s	0.0	0.059772	1.08GiB/CPU-s	81.54MiB/CPU-s	1.05MiB/CPU-s	0.0	0.073625	False	False