1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
//===--- BufferFind.swift -------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import TestsUtils
public var benchmarks: [BenchmarkInfo] = [
// size 1000, alignment 0
BenchmarkInfo(
name: "RawBuffer.1000.findFirst",
runFunction: run_BufferFindFirst,
tags: [.validation, .api],
setUpFunction: buffer1000Setup,
tearDownFunction: bufferTeardown
),
BenchmarkInfo(
name: "RawBuffer.1000.findLast",
runFunction: run_BufferFindLast,
tags: [.validation, .api],
setUpFunction: buffer1000Setup,
tearDownFunction: bufferTeardown
),
// size 128, alignment 0
BenchmarkInfo(
name: "RawBuffer.128.findFirst",
runFunction: run_BufferFindFirst,
tags: [.validation, .api, .skip],
setUpFunction: buffer128Setup,
tearDownFunction: bufferTeardown
),
BenchmarkInfo(
name: "RawBuffer.128.findLast",
runFunction: run_BufferFindLast,
tags: [.validation, .api],
setUpFunction: buffer128Setup,
tearDownFunction: bufferTeardown
),
// size 39, alignment 0
BenchmarkInfo(
name: "RawBuffer.39.findFirst",
runFunction: run_BufferFindFirst,
tags: [.validation, .api],
setUpFunction: buffer39Setup,
tearDownFunction: bufferTeardown
),
BenchmarkInfo(
name: "RawBuffer.39.findLast",
runFunction: run_BufferFindLast,
tags: [.validation, .api],
setUpFunction: buffer39Setup,
tearDownFunction: bufferTeardown
),
// size 7, alignment 0
BenchmarkInfo(
name: "RawBuffer.7.findFirst",
runFunction: run_BufferFindFirst,
tags: [.validation, .api],
setUpFunction: buffer7Setup,
tearDownFunction: bufferTeardown
),
BenchmarkInfo(
name: "RawBuffer.7.findLast",
runFunction: run_BufferFindLast,
tags: [.validation, .api],
setUpFunction: buffer7Setup,
tearDownFunction: bufferTeardown
)
]
var buffer: UnsafeMutableRawBufferPointer = .init(start: nil, count: 0)
func buffer1000Setup() {
bufferSetup(size: 1000, alignment: 0)
}
func buffer128Setup() {
bufferSetup(size: 128, alignment: 0)
}
func buffer39Setup() {
bufferSetup(size: 39, alignment: 0)
}
func buffer7Setup() {
bufferSetup(size: 7, alignment: 0)
}
func bufferTeardown() {
buffer.deallocate()
buffer = .init(start: nil, count: 0)
}
func bufferSetup(size: Int, alignment: Int) {
buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: size, alignment: alignment)
buffer.initializeMemory(as: UInt8.self, repeating: UInt8.min)
buffer[size / 2] = UInt8.max
}
@inline(never)
public func run_BufferFindFirst(n: Int) {
var offset = 0
for _ in 0 ..< n * 10_000 {
if let index = buffer.firstIndex(of: UInt8.max) {
offset += index
}
}
blackHole(offset)
}
@inline(never)
public func run_BufferFindLast(n: Int) {
var offset = 0
for _ in 0 ..< n * 10_000 {
if let index = buffer.lastIndex(of: UInt8.max) {
offset += index
}
}
blackHole(offset)
}
|
