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v8/test/inspector/debugger/collect-obsolete-async-tasks.js

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[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
// Copyright 2017 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.
[inspector] Refactor protocol-test.js This refactoring makes it easier to write advanced tests and gives full control over what's happening to the test code. It also forces description for every test. BUG=none Review-Url: https://codereview.chromium.org/2891213002 Cr-Commit-Position: refs/heads/master@{#45412}
2017-05-19 00:35:45 +00:00
let {session, contextGroup, Protocol} = InspectorTest.start('Checks that we collect obsolete async tasks with async stacks.');
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
[inspector] Refactor protocol-test.js This refactoring makes it easier to write advanced tests and gives full control over what's happening to the test code. It also forces description for every test. BUG=none Review-Url: https://codereview.chromium.org/2891213002 Cr-Commit-Position: refs/heads/master@{#45412}
2017-05-19 00:35:45 +00:00
contextGroup.addScript(`
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
function test() {
[test/inspector] remove any usage of v8::Extension .. replace all of them with prepared global object template. + bonus: wrap inspector related methods with inspector namespace. BUG=none R=dgozman@chromium.org Review-Url: https://codereview.chromium.org/2832723004 Cr-Commit-Position: refs/heads/master@{#44785}
2017-04-21 23:41:07 +00:00
inspector.setMaxAsyncTaskStacks(128);
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
var p = Promise.resolve();
[test/inspector] remove any usage of v8::Extension .. replace all of them with prepared global object template. + bonus: wrap inspector related methods with inspector namespace. BUG=none R=dgozman@chromium.org Review-Url: https://codereview.chromium.org/2832723004 Cr-Commit-Position: refs/heads/master@{#44785}
2017-04-21 23:41:07 +00:00
inspector.dumpAsyncTaskStacksStateForTest();
inspector.setMaxAsyncTaskStacks(128);
inspector.dumpAsyncTaskStacksStateForTest();
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
p.then(() => 42).then(() => 239);
[test/inspector] remove any usage of v8::Extension .. replace all of them with prepared global object template. + bonus: wrap inspector related methods with inspector namespace. BUG=none R=dgozman@chromium.org Review-Url: https://codereview.chromium.org/2832723004 Cr-Commit-Position: refs/heads/master@{#44785}
2017-04-21 23:41:07 +00:00
inspector.dumpAsyncTaskStacksStateForTest();
inspector.setMaxAsyncTaskStacks(128);
inspector.dumpAsyncTaskStacksStateForTest();
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
setTimeout(() => 42, 0);
[test/inspector] remove any usage of v8::Extension .. replace all of them with prepared global object template. + bonus: wrap inspector related methods with inspector namespace. BUG=none R=dgozman@chromium.org Review-Url: https://codereview.chromium.org/2832723004 Cr-Commit-Position: refs/heads/master@{#44785}
2017-04-21 23:41:07 +00:00
inspector.dumpAsyncTaskStacksStateForTest();
inspector.setMaxAsyncTaskStacks(128);
inspector.dumpAsyncTaskStacksStateForTest();
[inspector] removed kDebugPromiseCollected event With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them. Current promise collected event requires creating weak handle: - it takes time, - it consumes memory. Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups: - for empty hash map: 1.45 seconds, - for hash map with one entry: 14.95 seconds - 1024 entries: 15.03 seconds - 1024 * 1024 entries: 14.82 seconds - 1024 * 1024 * 1024: 17.9 seconds BUG=v8:6189 R=dgozman@chromium.org,yangguo@chromium.org Review-Url: https://codereview.chromium.org/2819423005 Cr-Commit-Position: refs/heads/master@{#44750}
2017-04-20 15:49:02 +00:00
}
`);
(async function test() {
Protocol.Debugger.enable();
Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
await Protocol.Runtime.evaluate({expression: 'test()'});
InspectorTest.completeTest();
})()
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