| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package memory_test |
| |
| import ( |
| "testing" |
| |
| "github.com/apache/arrow/go/arrow/memory" |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| func makeExpectedBuf(sz, lo, hi int, c byte) []byte { |
| buf := make([]byte, sz) |
| for i := lo; i < hi; i++ { |
| buf[i] = c |
| } |
| return buf |
| } |
| |
| func TestSet(t *testing.T) { |
| tests := []struct { |
| name string |
| sz int |
| lo, hi int |
| c byte |
| }{ |
| {"sz=0", 0, 0, 0, 0x00}, |
| {"all,sz=7", 7, 0, 7, 0x1f}, |
| {"part,sz=7", 7, 3, 4, 0x1f}, |
| {"last,sz=7", 7, 6, 7, 0x1f}, |
| {"all,sz=25", 25, 0, 25, 0x1f}, |
| {"part,sz=25", 25, 13, 19, 0x1f}, |
| {"last,sz=25", 25, 24, 25, 0x1f}, |
| {"all,sz=4096", 4096, 0, 4096, 0x1f}, |
| {"part,sz=4096", 4096, 1000, 3000, 0x1f}, |
| {"last,sz=4096", 4096, 4095, 4096, 0x1f}, |
| {"all,sz=16384", 16384, 0, 16384, 0x1f}, |
| {"part,sz=16384", 16384, 3333, 10000, 0x1f}, |
| {"last,sz=16384", 16384, 16383, 16384, 0x1f}, |
| } |
| for _, test := range tests { |
| t.Run(test.name, func(t *testing.T) { |
| buf := make([]byte, test.sz) |
| memory.Set(buf[test.lo:test.hi], test.c) |
| exp := makeExpectedBuf(test.sz, test.lo, test.hi, test.c) |
| assert.Equal(t, exp, buf) |
| }) |
| } |
| } |
| |
| func benchmarkSet(b *testing.B, n int64) { |
| buf := make([]byte, n) |
| b.SetBytes(n) |
| b.ResetTimer() |
| |
| for i := 0; i < b.N; i++ { |
| memory.Set(buf, 0x1f) |
| } |
| } |
| |
| func BenchmarkSet_8(b *testing.B) { |
| benchmarkSet(b, 8) |
| } |
| |
| func BenchmarkSet_32(b *testing.B) { |
| benchmarkSet(b, 32) |
| } |
| |
| func BenchmarkSet_64(b *testing.B) { |
| benchmarkSet(b, 64) |
| } |
| |
| func BenchmarkSet_500(b *testing.B) { |
| benchmarkSet(b, 500) |
| } |
| |
| func BenchmarkSet_512(b *testing.B) { |
| benchmarkSet(b, 512) |
| } |
| |
| func BenchmarkSet_1000(b *testing.B) { |
| benchmarkSet(b, 1000) |
| } |
| |
| func BenchmarkSet_1024(b *testing.B) { |
| benchmarkSet(b, 1024) |
| } |
| |
| func BenchmarkSet_2000(b *testing.B) { |
| benchmarkSet(b, 2000) |
| } |
| |
| func BenchmarkSet_2048(b *testing.B) { |
| benchmarkSet(b, 2048) |
| } |
| |
| func BenchmarkSet_4000(b *testing.B) { |
| benchmarkSet(b, 4000) |
| } |
| |
| func BenchmarkSet_4096(b *testing.B) { |
| benchmarkSet(b, 4096) |
| } |
| |
| func BenchmarkSet_8000(b *testing.B) { |
| benchmarkSet(b, 8000) |
| } |
| |
| func BenchmarkSet_8192(b *testing.B) { |
| benchmarkSet(b, 8192) |
| } |