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
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
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
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
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
