mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 16:01:52 +00:00
9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
59 lines
1.7 KiB
JavaScript
59 lines
1.7 KiB
JavaScript
// Copyright 2023 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// Flags: --allow-natives-syntax --log-function-events
|
|
|
|
// Increase the profiler sampling interval to avoid a data race between
|
|
// interval-triggered samples and explicitly triggered samples. The goal of the
|
|
// big interval is to avoid any interval-triggered samples.
|
|
// Flags: --cpu-profiler-sampling-interval=1000000
|
|
|
|
let sampleCollected = false;
|
|
|
|
function OnProfilerSampleCallback(profile) {
|
|
profile = profile.replaceAll('\\', '/');
|
|
profile = JSON.parse(profile);
|
|
let functionNames = profile.nodes.map(n => n.callFrame.functionName);
|
|
for (let i = 0; i < functionNames.length; ++i) {
|
|
if (functionNames[i].startsWith('js-to-wasm')) {
|
|
assertTrue(functionNames[i + 1].startsWith('f'));
|
|
assertTrue(functionNames[i + 2].startsWith('wasm-to-js'));
|
|
assertTrue(functionNames[i + 3].startsWith('g'));
|
|
// {sampleCollected} is set at the end because the asserts above don't
|
|
// show up in the test runner, probably because this function is called as
|
|
// a callback from d8.
|
|
sampleCollected = true;
|
|
return;
|
|
}
|
|
}
|
|
assertUnreachable();
|
|
}
|
|
d8.profiler.setOnProfileEndListener(OnProfilerSampleCallback);
|
|
|
|
function Asm(stdlib, imports, buffer) {
|
|
"use asm";
|
|
var g = imports.g;
|
|
|
|
function f(i) {
|
|
i = i|0;
|
|
return g() | 0;
|
|
}
|
|
|
|
return { f: f };
|
|
}
|
|
|
|
var heap = new ArrayBuffer(64*1024);
|
|
|
|
function g() {
|
|
d8.profiler.triggerSample();
|
|
console.profileEnd();
|
|
return 42;
|
|
}
|
|
var asm = Asm(this, {g: g}, heap);
|
|
assertTrue(%IsAsmWasmCode(Asm));
|
|
|
|
console.profile();
|
|
asm.f(3);
|
|
assertTrue(sampleCollected);
|