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benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift
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| /* | ||
| * Copyright 2023 Google Inc. All rights reserved. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
||
| import Benchmark | ||
| import CoreFoundation | ||
| import FlatBuffers | ||
|
|
||
| @usableFromInline | ||
| struct AA: NativeStruct { | ||
| public init(a: Double, b: Double) { | ||
| self.a = a | ||
| self.b = b | ||
| } | ||
| var a: Double | ||
| var b: Double | ||
| } | ||
|
|
||
| let benchmarks = { | ||
| let ints: [Int] = Array(repeating: 42, count: 100) | ||
| let bytes: [UInt8] = Array(repeating: 42, count: 100) | ||
| let str10 = (0...9).map { _ -> String in "x" }.joined() | ||
| let str100 = (0...99).map { _ -> String in "x" }.joined() | ||
| let array: [AA] = [ | ||
| AA(a: 2.4, b: 2.4), | ||
| AA(a: 2.4, b: 2.4), | ||
| AA(a: 2.4, b: 2.4), | ||
| AA(a: 2.4, b: 2.4), | ||
| AA(a: 2.4, b: 2.4), | ||
| ] | ||
|
|
||
| let metrics: [BenchmarkMetric] = [ | ||
| .cpuTotal, | ||
| .wallClock, | ||
| .mallocCountTotal, | ||
| .releaseCount, | ||
| .peakMemoryResident, | ||
| ] | ||
| let maxIterations = 1_000_000 | ||
| let maxDuration: Duration = .seconds(3) | ||
| let singleConfiguration: Benchmark.Configuration = .init( | ||
| metrics: metrics, | ||
| warmupIterations: 1, | ||
| scalingFactor: .one, | ||
| maxDuration: maxDuration, | ||
| maxIterations: maxIterations) | ||
| let kiloConfiguration: Benchmark.Configuration = .init( | ||
| metrics: metrics, | ||
| warmupIterations: 1, | ||
| scalingFactor: .kilo, | ||
| maxDuration: maxDuration, | ||
| maxIterations: maxIterations) | ||
| let megaConfiguration: Benchmark.Configuration = .init( | ||
| metrics: metrics, | ||
| warmupIterations: 1, | ||
| scalingFactor: .mega, | ||
| maxDuration: maxDuration, | ||
| maxIterations: maxIterations) | ||
|
|
||
| Benchmark.defaultConfiguration = megaConfiguration | ||
|
|
||
| Benchmark("Allocating 1GB", configuration: singleConfiguration) { benchmark in | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(FlatBufferBuilder(initialSize: 1_024_000_000)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Clearing 1GB", configuration: singleConfiguration) { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1_024_000_000) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(fb.clear()) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Strings 10") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(fb.create(string: str10)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Strings 100") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(fb.create(string: str100)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Vector 1 Bytes") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(fb.createVector(bytes: bytes)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Vector 1 Ints") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| blackHole(fb.createVector(ints)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Vector 100 Ints") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for i in benchmark.scaledIterations { | ||
| blackHole(fb.createVector(ints)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Vector 100 Bytes") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for i in benchmark.scaledIterations { | ||
| blackHole(fb.createVector(bytes)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Vector 100 ContiguousBytes") { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1<<20) | ||
| benchmark.startMeasurement() | ||
| for i in benchmark.scaledIterations { | ||
| blackHole(fb.createVector(bytes: bytes)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark( | ||
| "FlatBufferBuilder Add", | ||
| configuration: kiloConfiguration) | ||
| { benchmark in | ||
| var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32) | ||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| let off = fb.create(string: "T") | ||
| let s = fb.startTable(with: 4) | ||
| fb.add(element: 3.2, def: 0, at: 2) | ||
| fb.add(element: 4.2, def: 0, at: 4) | ||
| fb.add(element: 5.2, def: 0, at: 6) | ||
| fb.add(offset: off, at: 8) | ||
| blackHole(fb.endTable(at: s)) | ||
| } | ||
| } | ||
|
|
||
| Benchmark("Structs") { benchmark in | ||
| let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024 | ||
| var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600)) | ||
| var offsets: [Offset] = [] | ||
|
|
||
| benchmark.startMeasurement() | ||
| for _ in benchmark.scaledIterations { | ||
| let vector = fb.createVector( | ||
| ofStructs: array) | ||
| let start = fb.startTable(with: 1) | ||
| fb.add(offset: vector, at: 4) | ||
| offsets.append(Offset(offset: fb.endTable(at: start))) | ||
| } | ||
|
|
||
| let vector = fb.createVector(ofOffsets: offsets) | ||
| let start = fb.startTable(with: 1) | ||
| fb.add(offset: vector, at: 4) | ||
| let root = Offset(offset: fb.endTable(at: start)) | ||
| fb.finish(offset: root) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| # Benchmarks | ||
|
|
||
| To open the benchmarks in xcode use: | ||
|
|
||
| `open --env BENCHMARK_DISABLE_JEMALLOC=true Package.swift` | ||
|
|
||
| or running them directly within terminal using: | ||
|
|
||
| `swift package benchmark` |
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