mirror of
https://github.com/dart-lang/sdk
synced 2024-10-14 09:31:58 +00:00
c885bdde1d
Change-Id: Ica33af158cca53c8e951e4b2582de83660e8a60d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/121851 Commit-Queue: Samir Jindel <sjindel@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
430 lines
9.3 KiB
Dart
430 lines
9.3 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// TODO(37581): Generate this file.
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// Micro-benchmarks for ffi memory stores and loads.
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//
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// These micro benchmarks track the speed of reading and writing C memory from
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// Dart with a specific marshalling and unmarshalling of data.
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import 'dart:ffi';
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import 'package:ffi/ffi.dart';
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import 'package:benchmark_harness/benchmark_harness.dart';
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//
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// Pointer store.
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//
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void doStoreInt8(Pointer<Int8> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreUint8(Pointer<Uint8> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreInt16(Pointer<Int16> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreUint16(Pointer<Uint16> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreInt32(Pointer<Int32> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreUint32(Pointer<Uint32> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreInt64(Pointer<Int64> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreUint64(Pointer<Uint64> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1;
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}
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}
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void doStoreFloat(Pointer<Float> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1.0;
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}
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}
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void doStoreDouble(Pointer<Double> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 1.0;
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}
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}
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void doStorePointer(
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Pointer<Pointer<Int8>> pointer, int length, Pointer<Int8> data) {
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for (int i = 0; i < length; i++) {
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pointer[i] = data;
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}
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}
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void doStoreInt64Mint(Pointer<Int64> pointer, int length) {
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for (int i = 0; i < length; i++) {
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pointer[i] = 0x7FFFFFFFFFFFFFFF;
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}
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}
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//
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// Pointer load.
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//
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int doLoadInt8(Pointer<Int8> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadUint8(Pointer<Uint8> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadInt16(Pointer<Int16> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadUint16(Pointer<Uint16> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadInt32(Pointer<Int32> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadUint32(Pointer<Uint32> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadInt64(Pointer<Int64> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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int doLoadUint64(Pointer<Uint64> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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double doLoadFloat(Pointer<Float> pointer, int length) {
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double x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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double doLoadDouble(Pointer<Double> pointer, int length) {
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double x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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// Aggregates pointers through aggregrating their addresses.
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int doLoadPointer(Pointer<Pointer<Int8>> pointer, int length) {
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Pointer<Int8> x;
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int address_xor = 0;
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for (int i = 0; i < length; i++) {
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x = pointer[i];
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address_xor ^= x.address;
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}
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return address_xor;
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}
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int doLoadInt64Mint(Pointer<Int64> pointer, int length) {
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int x = 0;
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for (int i = 0; i < length; i++) {
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x += pointer[i];
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}
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return x;
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}
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//
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// Benchmark fixtures.
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//
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// Number of repeats: 1000
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// * CPU: Intel(R) Xeon(R) Gold 6154
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// * Architecture: x64
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// * 48000 - 125000 us (without optimizations)
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// * 14 - ??? us (expected with optimizations, on par with typed data)
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const N = 1000;
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class PointerInt8 extends BenchmarkBase {
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Pointer<Int8> pointer;
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PointerInt8() : super("FfiMemory.PointerInt8");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreInt8(pointer, N);
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final int x = doLoadInt8(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerUint8 extends BenchmarkBase {
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Pointer<Uint8> pointer;
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PointerUint8() : super("FfiMemory.PointerUint8");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreUint8(pointer, N);
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final int x = doLoadUint8(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerInt16 extends BenchmarkBase {
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Pointer<Int16> pointer;
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PointerInt16() : super("FfiMemory.PointerInt16");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreInt16(pointer, N);
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final int x = doLoadInt16(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerUint16 extends BenchmarkBase {
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Pointer<Uint16> pointer;
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PointerUint16() : super("FfiMemory.PointerUint16");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreUint16(pointer, N);
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final int x = doLoadUint16(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerInt32 extends BenchmarkBase {
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Pointer<Int32> pointer;
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PointerInt32() : super("FfiMemory.PointerInt32");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreInt32(pointer, N);
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final int x = doLoadInt32(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerUint32 extends BenchmarkBase {
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Pointer<Uint32> pointer;
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PointerUint32() : super("FfiMemory.PointerUint32");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreUint32(pointer, N);
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final int x = doLoadUint32(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerInt64 extends BenchmarkBase {
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Pointer<Int64> pointer;
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PointerInt64() : super("FfiMemory.PointerInt64");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreInt64(pointer, N);
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final int x = doLoadInt64(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerUint64 extends BenchmarkBase {
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Pointer<Uint64> pointer;
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PointerUint64() : super("FfiMemory.PointerUint64");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreUint64(pointer, N);
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final int x = doLoadUint64(pointer, N);
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if (x != N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerFloat extends BenchmarkBase {
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Pointer<Float> pointer;
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PointerFloat() : super("FfiMemory.PointerFloat");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreFloat(pointer, N);
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final double x = doLoadFloat(pointer, N);
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if (0.99 * N > x || x > 1.01 * N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerDouble extends BenchmarkBase {
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Pointer<Double> pointer;
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PointerDouble() : super("FfiMemory.PointerDouble");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreDouble(pointer, N);
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final double x = doLoadDouble(pointer, N);
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if (0.99 * N > x || x > 1.01 * N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerPointer extends BenchmarkBase {
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Pointer<Pointer<Int8>> pointer;
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Pointer<Int8> data;
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PointerPointer() : super("FfiMemory.PointerPointer");
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void setup() {
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pointer = allocate(count: N);
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data = allocate();
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}
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void teardown() {
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free(pointer);
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free(data);
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}
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void run() {
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doStorePointer(pointer, N, data);
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final int x = doLoadPointer(pointer, N);
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if (x != 0 || x == data.address) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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class PointerInt64Mint extends BenchmarkBase {
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Pointer<Int64> pointer;
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PointerInt64Mint() : super("FfiMemory.PointerInt64Mint");
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void setup() => pointer = allocate(count: N);
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void teardown() => free(pointer);
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void run() {
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doStoreInt64Mint(pointer, N);
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final int x = doLoadInt64Mint(pointer, N);
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// Using overflow semantics in aggregation.
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if (x != -N) {
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throw Exception("$name: Unexpected result: $x");
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}
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}
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}
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//
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// Main driver.
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//
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main() {
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final benchmarks = [
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() => PointerInt8(),
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() => PointerUint8(),
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() => PointerInt16(),
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() => PointerUint16(),
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() => PointerInt32(),
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() => PointerUint32(),
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() => PointerInt64(),
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() => PointerInt64Mint(),
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() => PointerUint64(),
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() => PointerFloat(),
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() => PointerDouble(),
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() => PointerPointer(),
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];
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benchmarks.forEach((benchmark) => benchmark().report());
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}
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