forked from BigfootDev/flatbuffers
870ecbc09a
* Moves the code to use _vtablestorage Rebuilt the test to confirm to the new API Adds documentation + generates code for grpc Reverts indentation v0.4.0 Updated swift/readme.md Updates VtableStorage to ensure space instead of reallocating each time Fixes str count not being correct * Fixes issue with boolean constant not being set + removes unused function
76 lines
2.2 KiB
Swift
76 lines
2.2 KiB
Swift
import CoreFoundation
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import FlatBuffers
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struct Benchmark {
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var name: String
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var value: Double
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var description: String { "\(String(format: "|\t%@\t\t|\t\t%fs\t|", name, value))"}
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}
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func run(name: String, runs: Int, action: () -> Void) -> Benchmark {
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action()
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let start = CFAbsoluteTimeGetCurrent()
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for _ in 0..<runs {
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action()
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}
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let ends = CFAbsoluteTimeGetCurrent()
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let value = Double(ends - start) / Double(runs)
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print("done \(name): in \(value)")
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return Benchmark(name: name, value: value)
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}
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func createDocument(Benchmarks: [Benchmark]) -> String {
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let separator = "-------------------------------------"
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var document = "\(separator)\n"
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document += "\(String(format: "|\t%@\t\t|\t\t%@\t\t|", "Name", "Scores"))\n"
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document += "\(separator)\n"
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for i in Benchmarks {
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document += "\(i.description) \n"
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document += "\(separator)\n"
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}
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return document
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}
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@inlinable func create10Strings() {
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var fb = FlatBufferBuilder(initialSize: 1<<20)
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for _ in 0..<10_000 {
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_ = fb.create(string: "foobarbaz")
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}
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}
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@inlinable func create100Strings(str: String) {
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var fb = FlatBufferBuilder(initialSize: 1<<20)
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for _ in 0..<10_000 {
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_ = fb.create(string: str)
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}
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}
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@inlinable func benchmarkFiveHundredAdds() {
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var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
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for _ in 0..<500_000 {
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let off = fb.create(string: "T")
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let s = fb.startTable(with: 4)
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fb.add(element: 3.2, def: 0, at: 2)
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fb.add(element: 4.2, def: 0, at: 4)
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fb.add(element: 5.2, def: 0, at: 6)
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fb.add(offset: off, at: 8)
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_ = fb.endTable(at: s)
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}
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}
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func benchmark(numberOfRuns runs: Int) {
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var benchmarks: [Benchmark] = []
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let str = (0...99).map { _ -> String in return "x" }.joined()
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benchmarks.append(run(name: "500_000", runs: runs, action: benchmarkFiveHundredAdds))
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benchmarks.append(run(name: "10 str", runs: runs, action: create10Strings))
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let hundredStr = run(name: "100 str", runs: runs) {
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create100Strings(str: str)
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}
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benchmarks.append(hundredStr)
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print(createDocument(Benchmarks: benchmarks))
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}
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benchmark(numberOfRuns: 20)
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