File: AsyncTree.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (77 lines) | stat: -rw-r--r-- 1,674 bytes parent folder | download
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
//===--- AsyncTree.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
import Dispatch

public var benchmarks: [BenchmarkInfo] {
  guard #available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *) else {
    return []
  }
  return [
    BenchmarkInfo(
      name: "AsyncTree.100",
      runFunction: run_AsyncTree(treeSize: 100),
      tags: [.concurrency]
    ),
    BenchmarkInfo(
      name: "AsyncTree.5000",
      runFunction: run_AsyncTree(treeSize: 5000),
      tags: [.concurrency]
    )
  ]
}

@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
private actor MyActor {
  let g: DispatchGroup

  init(_ g: DispatchGroup) {
    self.g = g
  }

  func test(_ n: Int) {
    let L = n / 2
    let R = n - 1 - L

    if L > 0 {
      Task {
        self.test(L)
      }
    }

    if R > 0 {
      Task {
        self.test(R)
      }
    }

    g.leave()
  }
}

@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
private func run_AsyncTree(treeSize: Int) -> (Int) -> Void {
  return { n in
    for _ in 0..<n {
      let g = DispatchGroup()
      for _ in 0..<treeSize {
        g.enter()
      }
      let actor = MyActor(g)
      Task {
        await actor.test(treeSize)
      }
      g.wait()
    }
  }
}