tz-lookup performance results using Racket 7.3

tz-lookup-results-7.3.md

https://alex-hhh.github.io/2019/08/timezone-lookup.html

These are the test results when running the tests mentioned in the above blog post against Racket 7.3, I did not run the first test, as it takes way too long. These results indicate that Racket 7.3 is faster than Racket-on-Chez used for the measurements in that blog post, but the aim of the blog post was not to measure the performance difference between Racket versions. Since the results are interesting, I decided to move them here, rther than discard them.

You can run the tests yourself, see https://github.com/alex-hhh/time-zone-lookup-tests

Bounding Boxes (2)

function	total calls	total time (ms)	min (ms)	max (ms)	mean (ms)
load-geojson	1	25243.88	25243.88	25243.88	25243.88
prepare-features	1	723.16	723.16	723.16	723.16
tz-lookup	996	28668.28	0	1068.58	28.78
feature-winding-number	424296	28543.22	0	1021.73	0.07
shape-winding-number	1174284	28293.18	0	1021.73	0.02
polygon-winding-number	1437228	27980.93	0	1021.73	0.02
polygon-winding-number-internal	1624	27730.99	0	1021.73	17.08
subtended-angle	52424084	14520.52	0	990.45	0.00028

Vectors (3)

function	total calls	total time (ms)	min (ms)	max (ms)	mean (ms)
load-geojson	1	24306.82	24306.82	24306.82	24306.82
prepare-features	1	1093.5	1093.5	1093.5	1093.5
tz-lookup	996	26239.79	0	499.88	26.35
feature-winding-number	424296	26161.71	0	499.88	0.06
shape-winding-number	1174284	25927.43	0	499.88	0.02
polygon-winding-number	1437228	25596.56	0	499.88	0.02
polygon-winding-number-internal	1624	25284.19	0	499.88	15.57
subtended-angle	52424084	13506.6	0	390.53	0.00026

Avoid unnecessary allocations (4)

function	total calls	total time (ms)	min (ms)	max (ms)	mean (ms)
load-geojson	1	24140.95	24140.95	24140.95	24140.95
prepare-features	1	1093.5	1093.5	1093.5	1093.5
tz-lookup	996	24378.4	0	468.88	24.48
feature-winding-number	424296	24284.87	0	460.75	0.06
shape-winding-number	1174284	24106.63	0	460.75	0.02
polygon-winding-number	1437228	23754.43	0	460.75	0.02
polygon-winding-number-internal	1624	23468.82	0	460.75	14.45
subtended-angle	52424084	11216.33	0	448.36	0.00021

Flvectors (5)

function	total calls	total time (ms)	min (ms)	max (ms)	mean (ms)
load-geojson	1	24202.93	24202.93	24202.93	24202.93
prepare-features	1	1171.56	1171.56	1171.56	1171.56
tz-lookup	996	24746.7	0	328.05	24.85
feature-winding-number	424296	24574.82	0	328.05	0.06
shape-winding-number	1174284	24364.21	0	328.05	0.02
polygon-winding-number	1437228	24114.24	0	328.05	0.02
polygon-winding-number-internal	1624	23910.19	0	328.05	14.72
subtended-angle	52424084	11426.41	0	15.68	0.00022

Fl operations (6)

function	total calls	total time (ms)	min (ms)	max (ms)	mean (ms)
load-geojson	1	24113.28	24113.28	24113.28	24113.28
prepare-features	1	1058.38	1058.38	1058.38	1058.38
tz-lookup	996	20278.22	0	296.84	20.36
feature-winding-number	424296	20137.66	0	281.22	0.05
shape-winding-number	1174284	19825.05	0	281.22	0.02
polygon-winding-number	1437228	19496.81	0	281.22	0.01
polygon-winding-number-internal	1624	19309.44	0	281.22	11.89
subtended-angle	52424084	6116.42	0	15.7	0.00012