enhancement(prometheus_exporter sink): use common test helpers in tests

[prognant]

part of #14077
part of #13995

[netlify]

✅ Deploy Preview for vector-project canceled.

Name	Link
🔨 Latest commit	38ccbf4
🔍 Latest deploy log	https://app.netlify.com/sites/vector-project/deploys/63060cf98e3bb4000819f417

[github-actions]

Soak Test Results

Baseline: fc44685
Comparison: ce456de
Total Vector CPUs: 4

Explanation

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

The table below, if present, lists those experiments that have experienced a statistically significant change in their throughput performance between baseline and comparision SHAs, with 90.0% 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 ±8.87% change in mean throughput are discarded. An experiment is erratic if its coefficient of variation is greater than 0.3. The abbreviated table will be omitted if no interesting changes are observed.

No interesting changes in throughput with confidence ≥ 90.00% and absolute Δ mean >= ±8.87%:

Fine details of change detection per experiment.

experiment	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
syslog_log2metric_humio_metrics	116.75KiB	0.92	100.00%	12.39MiB	400.14KiB	8.17KiB	0	0.0315422	12.5MiB	558.99KiB	11.39KiB	0	0.0436621	False	False
http_pipelines_blackhole_acks	5.28KiB	0.42	93.67%	1.22MiB	114.44KiB	2.33KiB	0	0.091269	1.23MiB	79.81KiB	1.63KiB	0	0.0633795	False	False
datadog_agent_remap_blackhole_acks	210.69KiB	0.34	96.26%	59.95MiB	4.18MiB	86.97KiB	0	0.0696503	60.16MiB	2.47MiB	51.72KiB	0	0.0410576	False	False
http_text_to_http_json	111.73KiB	0.27	100.00%	39.98MiB	725.86KiB	14.82KiB	0	0.017726	40.09MiB	723.92KiB	14.78KiB	0	0.0176304	False	False
http_pipelines_blackhole	1.61KiB	0.1	53.13%	1.65MiB	41.33KiB	864.7B	0	0.0244707	1.65MiB	100.99KiB	2.06KiB	0	0.0597418	False	False
splunk_hec_to_splunk_hec_logs_noack	18.26KiB	0.07	88.07%	23.82MiB	465.99KiB	9.52KiB	0	0.0190992	23.84MiB	335.05KiB	6.84KiB	0	0.013722	False	False
datadog_agent_remap_blackhole	37.08KiB	0.06	20.00%	59.82MiB	5.66MiB	117.76KiB	0	0.0945381	59.85MiB	4.16MiB	86.96KiB	0	0.0695724	False	False
enterprise_http_to_http	-2.47KiB	-0.01	26.08%	23.85MiB	258.59KiB	5.28KiB	0	0.0105872	23.84MiB	255.37KiB	5.22KiB	0	0.0104565	False	False
splunk_hec_indexer_ack_blackhole	-11.87KiB	-0.05	34.65%	23.75MiB	891.12KiB	18.13KiB	0	0.03663	23.74MiB	946.68KiB	19.25KiB	0	0.038933	False	False
splunk_hec_to_splunk_hec_logs_acks	-15.29KiB	-0.06	46.90%	23.76MiB	821.49KiB	16.72KiB	0	0.0337563	23.75MiB	874.53KiB	17.78KiB	0	0.0359584	False	False
file_to_blackhole	-109.09KiB	-0.11	63.16%	95.32MiB	3.77MiB	78.19KiB	0	0.0395909	95.22MiB	4.46MiB	92.69KiB	0	0.0468332	False	False
http_to_http_json	-47.18KiB	-0.19	99.95%	23.85MiB	330.47KiB	6.75KiB	0	0.0135296	23.8MiB	575.07KiB	11.73KiB	0	0.0235892	False	False
fluent_elasticsearch	-170.57KiB	-0.21	100.00%	79.47MiB	52.86KiB	1.07KiB	0	0.000649445	79.31MiB	1.48MiB	30.5KiB	0	0.0186866	False	False
splunk_hec_route_s3	-42.36KiB	-0.22	47.85%	19.06MiB	2.3MiB	47.96KiB	0	0.120796	19.02MiB	2.17MiB	45.46KiB	0	0.114315	False	False
http_to_http_noack	-78.15KiB	-0.32	99.94%	23.84MiB	408.39KiB	8.35KiB	0	0.0167275	23.76MiB	1.02MiB	21.22KiB	0	0.0428032	False	False
syslog_regex_logs2metric_ddmetrics	-69.55KiB	-0.56	100.00%	12.19MiB	515.86KiB	10.51KiB	0	0.0413301	12.12MiB	522.85KiB	10.66KiB	0	0.0421252	False	False
datadog_agent_remap_datadog_logs	-439.59KiB	-0.67	100.00%	63.68MiB	365.32KiB	7.47KiB	0	0.00560082	63.25MiB	4.27MiB	88.98KiB	0	0.0675403	False	False
syslog_splunk_hec_logs	-115.55KiB	-0.71	100.00%	15.98MiB	961.95KiB	19.57KiB	0	0.0587758	15.87MiB	871.25KiB	17.76KiB	0	0.0536123	False	False
syslog_loki	-126.64KiB	-0.83	100.00%	14.89MiB	282.92KiB	5.79KiB	0	0.0185514	14.77MiB	747.55KiB	15.2KiB	0	0.0494284	False	False
http_to_http_acks	-189.96KiB	-1.05	60.19%	17.74MiB	7.76MiB	162.19KiB	0	0.437408	17.55MiB	7.45MiB	155.61KiB	0	0.424539	True	True
datadog_agent_remap_datadog_logs_acks	-672.42KiB	-1.05	100.00%	62.71MiB	3.11MiB	65.06KiB	0	0.0495994	62.06MiB	4.47MiB	92.99KiB	0	0.0719745	False	False
socket_to_socket_blackhole	-295.43KiB	-1.22	100.00%	23.58MiB	191.2KiB	3.9KiB	0	0.00791794	23.29MiB	138.39KiB	2.83KiB	0	0.00580202	False	False
syslog_log2metric_splunk_hec_metrics	-224.62KiB	-1.24	100.00%	17.75MiB	351.08KiB	7.16KiB	0	0.0193167	17.53MiB	675.79KiB	13.77KiB	0	0.0376478	False	False
http_pipelines_no_grok_blackhole	-143.71KiB	-1.28	100.00%	10.96MiB	45.43KiB	949.69B	0	0.00404807	10.82MiB	1.05MiB	21.78KiB	0	0.0966993	False	False
syslog_humio_logs	-223.02KiB	-1.37	100.00%	15.85MiB	303.42KiB	6.19KiB	0	0.0186881	15.63MiB	361.46KiB	7.4KiB	0	0.0225731	False	False

[github-actions]

Soak Test Results

Baseline: 92dfb84
Comparison: 38ccbf4
Total Vector CPUs: 4

Explanation

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

The table below, if present, lists those experiments that have experienced a statistically significant change in their throughput performance between baseline and comparision SHAs, with 90.0% 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 ±8.87% change in mean throughput are discarded. An experiment is erratic if its coefficient of variation is greater than 0.3. The abbreviated table will be omitted if no interesting changes are observed.

No interesting changes in throughput with confidence ≥ 90.00% and absolute Δ mean >= ±8.87%:

Fine details of change detection per experiment.

experiment	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
datadog_agent_remap_blackhole_acks	2.06MiB	3.53	100.00%	58.47MiB	4.01MiB	83.59KiB	0	0.0686403	60.53MiB	4.06MiB	84.95KiB	0	0.0670396	False	False
splunk_hec_route_s3	286.24KiB	1.55	100.00%	18.07MiB	2.39MiB	49.77KiB	0	0.132235	18.35MiB	2.31MiB	48.24KiB	0	0.125686	False	False
datadog_agent_remap_datadog_logs_acks	788.63KiB	1.25	100.00%	61.51MiB	2.87MiB	60.03KiB	0	0.0466449	62.28MiB	4.42MiB	91.96KiB	0	0.0709163	False	False
http_text_to_http_json	448.37KiB	1.1	100.00%	39.75MiB	748.04KiB	15.27KiB	0	0.0183714	40.19MiB	775.51KiB	15.83KiB	0	0.0188387	False	False
datadog_agent_remap_blackhole	617.95KiB	0.99	100.00%	60.69MiB	4.12MiB	85.95KiB	0	0.0679416	61.29MiB	2.74MiB	57.1KiB	0	0.0446259	False	False
http_pipelines_blackhole_acks	4.34KiB	0.34	90.07%	1.23MiB	108.23KiB	2.2KiB	0	0.085786	1.24MiB	70.75KiB	1.44KiB	0	0.0558845	False	False
splunk_hec_to_splunk_hec_logs_noack	16.12KiB	0.07	82.69%	23.82MiB	477.78KiB	9.75KiB	0	0.0195823	23.84MiB	327.96KiB	6.7KiB	0	0.0134328	False	False
splunk_hec_indexer_ack_blackhole	10.05KiB	0.04	29.71%	23.74MiB	927.99KiB	18.87KiB	0	0.0381619	23.75MiB	903.21KiB	18.38KiB	0	0.0371278	False	False
enterprise_http_to_http	-982.11B	-0	10.72%	23.85MiB	245.02KiB	5.0KiB	0	0.010032	23.85MiB	247.23KiB	5.06KiB	0	0.0101226	False	False
splunk_hec_to_splunk_hec_logs_acks	-3.96KiB	-0.02	12.54%	23.75MiB	863.76KiB	17.57KiB	0	0.0355121	23.74MiB	881.09KiB	17.91KiB	0	0.0362306	False	False
file_to_blackhole	-45.54KiB	-0.05	35.20%	95.36MiB	3.48MiB	72.03KiB	0	0.0364385	95.31MiB	3.32MiB	68.98KiB	0	0.0347915	False	False
http_to_http_json	-26.63KiB	-0.11	96.98%	23.84MiB	345.06KiB	7.05KiB	0	0.0141299	23.82MiB	492.18KiB	10.06KiB	0	0.0201765	False	False
fluent_elasticsearch	-142.58KiB	-0.18	100.00%	79.47MiB	53.94KiB	1.09KiB	0	0.000662722	79.33MiB	1.43MiB	29.43KiB	0	0.0180059	False	False
http_to_http_noack	-67.29KiB	-0.28	99.85%	23.84MiB	400.05KiB	8.17KiB	0	0.0163851	23.77MiB	961.29KiB	19.59KiB	0	0.0394814	False	False
syslog_regex_logs2metric_ddmetrics	-71.34KiB	-0.55	100.00%	12.58MiB	517.78KiB	10.56KiB	0	0.0401724	12.51MiB	573.03KiB	11.68KiB	0	0.0447067	False	False
datadog_agent_remap_datadog_logs	-383.21KiB	-0.6	100.00%	62.8MiB	1.19MiB	24.99KiB	0	0.0189862	62.43MiB	4.01MiB	83.46KiB	0	0.0641444	False	False
http_pipelines_blackhole	-11.3KiB	-0.64	100.00%	1.72MiB	10.77KiB	225.36B	0	0.00612891	1.7MiB	95.89KiB	1.96KiB	0	0.054945	False	False
syslog_loki	-113.18KiB	-0.75	100.00%	14.78MiB	329.42KiB	6.74KiB	0	0.0217648	14.67MiB	743.94KiB	15.12KiB	0	0.0495225	False	False
http_pipelines_no_grok_blackhole	-103.39KiB	-0.92	100.00%	11.03MiB	261.1KiB	5.33KiB	0	0.0231086	10.93MiB	1019.51KiB	20.74KiB	0	0.0910665	False	False
syslog_log2metric_humio_metrics	-155.02KiB	-1.16	100.00%	13.01MiB	206.09KiB	4.21KiB	0	0.0154605	12.86MiB	517.81KiB	10.54KiB	0	0.0393028	False	False
syslog_splunk_hec_logs	-214.84KiB	-1.29	100.00%	16.21MiB	725.91KiB	14.79KiB	0	0.0437325	16.0MiB	729.23KiB	14.87KiB	0	0.0445089	False	False
syslog_humio_logs	-247.07KiB	-1.44	100.00%	16.7MiB	153.52KiB	3.14KiB	0	0.00897511	16.46MiB	221.54KiB	4.54KiB	0	0.0131413	False	False
http_to_http_acks	-283.96KiB	-1.57	77.91%	17.65MiB	7.85MiB	164.03KiB	0	0.444522	17.37MiB	7.86MiB	163.99KiB	0	0.452249	True	True
syslog_log2metric_splunk_hec_metrics	-357.02KiB	-1.94	100.00%	17.93MiB	669.1KiB	13.63KiB	0	0.0364358	17.58MiB	754.01KiB	15.35KiB	0	0.0418737	False	False
socket_to_socket_blackhole	-488.81KiB	-2.02	100.00%	23.63MiB	346.85KiB	7.08KiB	0	0.0143308	23.15MiB	181.37KiB	3.7KiB	0	0.00764797	False	False