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slices: add benchmark for IsSorted vs. IntsAreSorted
We'd like to mention in a comment that users should prefer slices.IsSorted over sort.IntsAreSorted and similar functions. Create a benchmark that shows this. goos: linux goarch: amd64 pkg: slices cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz BenchmarkIntsAreSorted-8 6031 198315 ns/op BenchmarkIsSorted-8 26580 45801 ns/op Change-Id: I4f14fafd799ecec35c8a5215b74994e972103061 Reviewed-on: https://go-review.googlesource.com/c/go/+/502556 Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Eli Bendersky <eliben@golang.org> Reviewed-by: Eli Bendersky <eliben@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
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@ -77,6 +77,24 @@ func BenchmarkSlicesSortInts_Reversed(b *testing.B) {
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}
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}
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func BenchmarkIntsAreSorted(b *testing.B) {
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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ints := makeSortedInts(N)
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b.StartTimer()
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sort.IntsAreSorted(ints)
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}
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}
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func BenchmarkIsSorted(b *testing.B) {
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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ints := makeSortedInts(N)
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b.StartTimer()
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IsSorted(ints)
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}
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}
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// Since we're benchmarking these sorts against each other, make sure that they
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// generate similar results.
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func TestIntSorts(t *testing.T) {
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