Benchmark Reports

This report shows the performance difference between Simple Feature's native set operations (pure Go) and the corresponding GEOS set operations.

To re-run the reports, use the run.sh script (it generates the markdown tables below).

The source code for the benchmarks below is here. The benchmarks create two regular polygons, each with n sides (where n is the input size in the tables below). The polygons partially overlap with each other. The set operation on the two regular polygons is what is actually timed.

Operation: Intersection

Input Size	Simple Features	GEOS	Ratio
22	39.2µs	46.7µs	0.8
23	48.1µs	54.3µs	0.9
24	65.2µs	59.5µs	1.1
25	113µs	72.1µs	1.6
26	190µs	94.9µs	2.0
27	354µs	144µs	2.5
28	647µs	215µs	3.0
29	1.28ms	385µs	3.3
210	2.47ms	718µs	3.4
211	5.36ms	1.46ms	3.7
212	11.1ms	2.66ms	4.2
213	22.1ms	5.73ms	3.9
214	44.7ms	11.6ms	3.9

Operation: Union

Input Size	Simple Features	GEOS	Ratio
22	40.8µs	49.6µs	0.8
23	50.2µs	55.6µs	0.9
24	72.3µs	67.5µs	1.1
25	122µs	86µs	1.4
26	215µs	127µs	1.7
27	390µs	190µs	2.1
28	729µs	318µs	2.3
29	1.42ms	574µs	2.5
210	2.83ms	1.19ms	2.4
211	5.99ms	2.19ms	2.7
212	12.7ms	4.7ms	2.7
213	25.9ms	9.42ms	2.7
214	55ms	20.3ms	2.7

Operation: Difference

Input Size	Simple Features	GEOS	Ratio
22	40.1µs	48.9µs	0.8
23	48µs	55.6µs	0.9
24	68.7µs	64.8µs	1.1
25	117µs	79.9µs	1.5
26	203µs	116µs	1.7
27	370µs	172µs	2.1
28	691µs	281µs	2.5
29	1.37ms	512µs	2.7
210	2.66ms	1.03ms	2.6
211	5.63ms	1.85ms	3.0
212	12ms	4.02ms	3.0
213	25.1ms	8.09ms	3.1
214	53.2ms	17.2ms	3.1

Operation: SymmetricDifference

Input Size	Simple Features	GEOS	Ratio
22	51.5µs	68.2µs	0.8
23	63.9µs	79.4µs	0.8
24	98.8µs	102µs	1.0
25	161µs	137µs	1.2
26	286µs	210µs	1.4
27	512µs	335µs	1.5
28	1ms	618µs	1.6
29	1.91ms	1.15ms	1.7
210	3.93ms	2.32ms	1.7
211	8.06ms	4.46ms	1.8
212	17.1ms	9.86ms	1.7
213	34.1ms	19.5ms	1.7
214	71ms	38.3ms	1.9