Compared to Masterminds/semver:
go run golang.org/x/perf/cmd/benchstat -geomean masterminds.txt ours.txt
name old time/op new time/op delta
Parse/simple-8 604ns ± 3% 61ns ± 6% -89.92% (p=0.000 n=10+9)
Parse/pre-8 859ns ± 2% 140ns ± 2% -83.74% (p=0.000 n=9+10)
Parse/build-8 851ns ± 2% 96ns ± 3% -88.66% (p=0.000 n=10+10)
Parse/pre+build-8 1.37µs ± 5% 0.19µs ± 2% -85.81% (p=0.000 n=9+9)
ParseConstraint/equal-8 3.42µs ± 2% 0.21µs ± 3% -93.95% (p=0.000 n=9+10)
ParseConstraint/tilde-8 5.19µs ± 4% 0.21µs ± 2% -96.01% (p=0.000 n=9+9)
ParseConstraint/caret-8 5.14µs ± 2% 0.21µs ± 2% -95.96% (p=0.000 n=8+10)
ParseConstraint/wildcard-8 3.41µs ± 2% 0.20µs ± 2% -94.21% (p=0.000 n=9+10)
ParseConstraint/range-8 9.95µs ± 2% 0.22µs ± 1% -97.78% (p=0.000 n=10+10)
ParseConstraint/union-8 11.0µs ± 1% 0.4µs ± 1% -96.36% (p=0.000 n=8+8)
[Geo mean] 2.70µs 0.17µs -93.57%
name old alloc/op new alloc/op delta
Parse/simple-8 402B ± 0% 96B ± 0% -76.12% (p=0.000 n=10+10)
Parse/pre-8 418B ± 0% 148B ± 0% -64.62% (p=0.000 n=10+10)
Parse/build-8 418B ± 0% 101B ± 0% -75.85% (p=0.000 n=10+10)
Parse/pre+build-8 467B ± 0% 160B ± 0% -65.74% (p=0.002 n=8+10)
ParseConstraint/equal-8 1.30kB ± 0% 0.30kB ± 0% -76.68% (p=0.000 n=10+10)
ParseConstraint/tilde-8 1.26kB ± 0% 0.30kB ± 0% -75.96% (p=0.000 n=10+10)
ParseConstraint/caret-8 1.26kB ± 0% 0.30kB ± 0% -75.94% (p=0.000 n=10+10)
ParseConstraint/wildcard-8 1.29kB ± 0% 0.30kB ± 0% -76.38% (p=0.000 n=10+10)
ParseConstraint/range-8 2.34kB ± 0% 0.30kB ± 0% -87.02% (p=0.000 n=10+10)
ParseConstraint/union-8 2.50kB ± 0% 0.45kB ± 0% -82.11% (p=0.000 n=6+10)
[Geo mean] 936B 220B -76.48%
name old allocs/op new allocs/op delta
Parse/simple-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10)
Parse/pre-8 4.00 ± 0% 3.00 ± 0% -25.00% (p=0.000 n=10+10)
Parse/build-8 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.000 n=10+10)
Parse/pre+build-8 5.00 ± 0% 4.00 ± 0% -20.00% (p=0.000 n=10+10)
ParseConstraint/equal-8 15.0 ± 0% 4.0 ± 0% -73.33% (p=0.000 n=10+10)
ParseConstraint/tilde-8 12.0 ± 0% 4.0 ± 0% -66.67% (p=0.000 n=10+10)
ParseConstraint/caret-8 12.0 ± 0% 4.0 ± 0% -66.67% (p=0.000 n=10+10)
ParseConstraint/wildcard-8 14.0 ± 0% 4.0 ± 0% -71.43% (p=0.000 n=10+10)
ParseConstraint/range-8 22.0 ± 0% 4.0 ± 0% -81.82% (p=0.000 n=10+10)
ParseConstraint/union-8 21.0 ± 0% 7.0 ± 0% -66.67% (p=0.000 n=10+10)
[Geo mean] 8.96 3.34 -62.76%
Compared to hashicorp/go-version (note that go-version does not have feature parity):
go run golang.org/x/perf/cmd/benchstat -geomean hashicorp.txt ours.txt
name old time/op new time/op delta
Parse/simple-8 1.10µs ± 1% 0.06µs ± 6% -94.47% (p=0.000 n=8+9)
Parse/pre-8 1.26µs ± 3% 0.14µs ± 2% -88.90% (p=0.000 n=9+10)
Parse/build-8 1.32µs ± 6% 0.10µs ± 3% -92.71% (p=0.000 n=10+10)
Parse/pre+build-8 1.59µs ± 3% 0.19µs ± 2% -87.79% (p=0.000 n=9+9)
ParseConstraint/equal-8 2.03µs ± 4% 0.21µs ± 3% -89.78% (p=0.000 n=8+10)
ParseConstraint/tilde-8 2.48µs ± 6% 0.21µs ± 2% -91.66% (p=0.000 n=9+9)
ParseConstraint/range-8 1.26µs ± 8% 0.22µs ± 1% -82.39% (p=0.000 n=9+10)
[Geo mean] 1.52µs 0.17µs -88.55%
name old alloc/op new alloc/op delta
Parse/simple-8 539B ± 0% 96B ± 0% -82.19% (p=0.000 n=10+10)
Parse/pre-8 539B ± 0% 148B ± 0% -72.54% (p=0.000 n=9+10)
Parse/build-8 539B ± 0% 101B ± 0% -81.25% (p=0.000 n=10+10)
Parse/pre+build-8 539B ± 0% 160B ± 0% -70.32% (p=0.002 n=8+10)
ParseConstraint/equal-8 1.05kB ± 0% 0.30kB ± 0% -71.18% (p=0.000 n=10+10)
ParseConstraint/tilde-8 1.05kB ± 0% 0.30kB ± 0% -70.95% (p=0.000 n=10+10)
ParseConstraint/range-8 112B ± 0% 304B ± 0% +171.43% (p=0.000 n=8+10)
[Geo mean] 521B 220B -57.76%
name old allocs/op new allocs/op delta
Parse/simple-8 5.00 ± 0% 1.00 ± 0% -80.00% (p=0.000 n=10+10)
Parse/pre-8 5.00 ± 0% 3.00 ± 0% -40.00% (p=0.000 n=10+10)
Parse/build-8 5.00 ± 0% 2.00 ± 0% -60.00% (p=0.000 n=10+10)
Parse/pre+build-8 5.00 ± 0% 4.00 ± 0% -20.00% (p=0.000 n=10+10)
ParseConstraint/equal-8 11.0 ± 0% 4.0 ± 0% -63.64% (p=0.000 n=10+10)
ParseConstraint/tilde-8 10.0 ± 0% 4.0 ± 0% -60.00% (p=0.000 n=10+10)
ParseConstraint/range-8 5.00 ± 0% 4.00 ± 0% -20.00% (p=0.000 n=10+10)
[Geo mean] 6.18 3.34 -45.97%