CollectingBenchmarks.md

Metric Collecting Benchmarks

Legend

• Collecting - system generates 100 counters with 100 unique samples for each and performs scrape

Benchmark Results

Counter

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
Collecting_Baseline	5.877 ms	1.340 ms	1.543 ms	1.00	0.00	-	-	-	406.96 KB
Collecting	15.325 ms	4.407 ms	5.075 ms	2.72	0.83	-	-	-	6.57 KB

Gauge

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
Collecting_Baseline	5.907 ms	1.401 ms	1.614 ms	6.648 ms	1.00	0.00	-	-	-	406.93 KB
Collecting	17.514 ms	5.210 ms	5.999 ms	13.524 ms	3.04	0.76	-	-	-	6.57 KB

Histogram

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
Collecting_Baseline	73.26 ms	6.958 ms	8.013 ms	1.00	0.00	1000.0000	-	-	5405.19 KB
Collecting	192.72 ms	1.541 ms	1.775 ms	2.65	0.21	-	-	-	7.6 KB

Summary

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
Collecting_Baseline	17.16 ms	2.583 ms	2.975 ms	1.00	0.00	-	-	-	1031.99 KB
Collecting	77.84 ms	1.061 ms	1.222 ms	4.64	0.61	-	-	-	6.66 KB

Conclusions

Current version of the library shows significant less allocation, but much poorer performance with comparison to prometheus-net. Profiling indicates that most of the time spend on converting strings to Utf8 encoding. Upcoming Net5 release includes Uft8String class that should help in this case.