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pmap
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insertion benchmarks 

spoilers: they're not good
master
magical 2022-01-23 01:31:01 +00:00
parent c57649e758
commit 28e69d7fb4
1 changed files with 56 additions and 1 deletions
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57
pmap_test.go
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@ -35,6 +35,8 @@ func BenchmarkGet(b *testing.B) {
b.Run("size=100", func(b *testing.B) { benchmarkGet(b, 100) }) b.Run("size=100", func(b *testing.B) { benchmarkGet(b, 100) })
b.Run("size=1000", func(b *testing.B) { benchmarkGet(b, 1000) }) b.Run("size=1000", func(b *testing.B) { benchmarkGet(b, 1000) })
b.Run("size=10000", func(b *testing.B) { benchmarkGet(b, 10000) }) b.Run("size=10000", func(b *testing.B) { benchmarkGet(b, 10000) })
//b.Run("size=100000", func(b *testing.B) { benchmarkGet(b, 100000) })
//b.Run("size=1000000", func(b *testing.B) { benchmarkGet(b, 1000000) })
} }
func BenchmarkGetAbsent(b *testing.B) { func BenchmarkGetAbsent(b *testing.B) {
@ -69,7 +71,7 @@ func benchmarkGet(b *testing.B, numElems int) {
func benchmarkGetAbsent(b *testing.B, numElems int) { func benchmarkGetAbsent(b *testing.B, numElems int) {
p := New(hash) p := New(hash)
for i := range iter(numElems) { for i := range iter(numElems) {
p = p.Set(-i-1, i) p = p.Set(i-numElems, i)
} }
if p.Len() != numElems { if p.Len() != numElems {
b.Fatalf("Len() = %v, want %v", p.Len(), numElems) b.Fatalf("Len() = %v, want %v", p.Len(), numElems)
@ -94,6 +96,8 @@ func BenchmarkHmapGet_baseline(b *testing.B) {
b.Run("size=100", func(b *testing.B) { benchmarkHmapGet(b, 100) }) b.Run("size=100", func(b *testing.B) { benchmarkHmapGet(b, 100) })
b.Run("size=1000", func(b *testing.B) { benchmarkHmapGet(b, 1000) }) b.Run("size=1000", func(b *testing.B) { benchmarkHmapGet(b, 1000) })
b.Run("size=10000", func(b *testing.B) { benchmarkHmapGet(b, 10000) }) b.Run("size=10000", func(b *testing.B) { benchmarkHmapGet(b, 10000) })
b.Run("size=100000", func(b *testing.B) { benchmarkHmapGet(b, 100000) })
b.Run("size=1000000", func(b *testing.B) { benchmarkHmapGet(b, 1000000) })
} }
func benchmarkHmapGet(b *testing.B, numElems int) { func benchmarkHmapGet(b *testing.B, numElems int) {
@ -117,3 +121,54 @@ func benchmarkHmapGet(b *testing.B, numElems int) {
} }
} }
} }
func BenchmarkSet(b *testing.B) {
b.Run("size=10", func(b *testing.B) { benchmarkSet(b, 10) })
b.Run("size=100", func(b *testing.B) { benchmarkSet(b, 100) })
b.Run("size=1000", func(b *testing.B) { benchmarkSet(b, 1000) })
b.Run("size=10000", func(b *testing.B) { benchmarkSet(b, 10000) })
if !testing.Short() {
b.Run("size=100000", func(b *testing.B) { benchmarkSet(b, 100000) })
}
}
func benchmarkSet(b *testing.B, numElems int) {
p := New(hash)
for i := range iter(numElems) {
p = p.Set(i, i)
}
if p.Len() != numElems {
b.Fatalf("Len() = %v, want %v", p.Len(), numElems)
}
b.ResetTimer()
for i := range iter(b.N) {
k := i + numElems
_ = p.Set(k, k)
}
}
func BenchmarkHmapSet_baseline(b *testing.B) {
b.Run("size=10", func(b *testing.B) { benchmarkHmapSet(b, 10) })
b.Run("size=100", func(b *testing.B) { benchmarkHmapSet(b, 100) })
b.Run("size=1000", func(b *testing.B) { benchmarkHmapSet(b, 1000) })
b.Run("size=10000", func(b *testing.B) { benchmarkHmapSet(b, 10000) })
if !testing.Short() {
b.Run("size=100000", func(b *testing.B) { benchmarkHmapSet(b, 100000) })
}
}
func benchmarkHmapSet(b *testing.B, numElems int) {
h := make(map[int]int)
for i := range iter(numElems) {
h[i] = i
}
if len(h) != numElems {
b.Fatalf("Len() = %v, want %v", len(h), numElems)
}
b.ResetTimer()
for i := range iter(b.N) {
k := i + numElems
h[k] = k
delete(h, k)
}
}