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[v18.x] backport startup performance patches #46425

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@joyeecheung joyeecheung commented Jan 30, 2023

This is a backport of #45659 and #45849, the first two commits are specifically added for v18.x with the second one taken from #44483.

Refs: #46425

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Review requested:

  • @nodejs/loaders
  • @nodejs/modules
  • @nodejs/net
  • @nodejs/startup

@nodejs-github-bot nodejs-github-bot added lib / src Issues and PRs related to general changes in the lib or src directory. needs-ci PRs that need a full CI run. v18.x Issues that can be reproduced on v18.x or PRs targeting the v18.x-staging branch. labels Jan 30, 2023
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Nice! Looks good, there’s just one typo in the extra commit messages (gloablThis) 🙂

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lgtm

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@panva panva added the request-ci Add this label to start a Jenkins CI on a PR. label Jan 31, 2023
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Jan 31, 2023
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I cannot reproduce the snapshot test failures locally on similar platforms. It could be a flake, or maybe something wasn't backported properly for v18.x. Will need to wait until the CI is unlocked to do a bit more runs to find out.

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I would love to land this in the v18.15.0 release <3, I was going to kick a CI for this but it needs a rebase first.

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@joyeecheung It looks like this needs a rebase

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krk commented Apr 26, 2023

Hi! What is the expected performance gain in startup with this PR?

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hi @joyeecheung this PR needs rebasing in case we want to land it in v18.x

So that we can add multiple initialization scripts in the test runner.

Refs: nodejs#44483
It turns out that even with startup snapshots, there is a non-trivial
overhead for loading internal modules. This patch makes the loading
of the non-essential modules lazy again.

Caveat: we have to make some of the globals lazily-loaded too,
so the WPT runner is updated to test what the state of the global
scope is after the globals are accessed (and replaced with the
loaded value).

PR-URL: nodejs#45659
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Daeyeon Jeong <[email protected]>
Reviewed-By: Jacob Smith <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>
Reviewed-By: Tierney Cyren <[email protected]>
targos pushed a commit that referenced this pull request Nov 10, 2023
This patch makes the top-level access to runtime states in the
CJS loader lazy, and move the side-effects into a
initializeCJS() function that gets called during pre-execution.
As a result the CJS loader can be included into the built-in
snapshot.

PR-URL: #45849
Backport-PR-URL: #46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
targos pushed a commit that referenced this pull request Nov 10, 2023
Preload essential modules and lazy-load non-essential ones.
After this patch, all modules listed by running this snippet:

```
const list = process.moduleLoadList.join('\n');
require('fs').writeSync(1, list, 'utf-8');
```

(which is roughly the same list as the one in
test-bootstrap-module.js for the main thread)
are loaded from the snapshot so no additional compilation cost
is incurred.

PR-URL: #45849
Backport-PR-URL: #46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
targos added a commit that referenced this pull request Nov 10, 2023
Original commit message:

    [snapshot] Dont defer ByteArray when serializing

    JSTypedArray needs the base_pointer ByteArray immediately
    if it's on heap. JSTypedArray's base_pointer was initialized
    to Smi::uninitialized_deserialization_value at first when
    deserializing, and if base_pointer was deferred, we will
    mistakenly check JSTypedArray not on heap.

    Bug: v8:13149
    Change-Id: I104c83ff9a2017de1c8071a9e116baa602f6977d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3813068
    Reviewed-by: Jakob Linke <[email protected]>
    Commit-Queue: 王澳 <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#82254}

Refs: v8/v8@d69c793
PR-URL: #46425
Reviewed-By: Joyee Cheung <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
PR-URL: nodejs/node#46425
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that we can add multiple initialization scripts in the test runner.

Refs: nodejs/node#44483
PR-URL: nodejs/node#46425
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
It turns out that even with startup snapshots, there is a non-trivial
overhead for loading internal modules. This patch makes the loading
of the non-essential modules lazy again.

Caveat: we have to make some of the globals lazily-loaded too,
so the WPT runner is updated to test what the state of the global
scope is after the globals are accessed (and replaced with the
loaded value).

PR-URL: nodejs/node#45659
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Daeyeon Jeong <[email protected]>
Reviewed-By: Jacob Smith <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>
Reviewed-By: Tierney Cyren <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Since the module has to be loaded during bootstrap anyway.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
The helpers are actually shared by the two loaders, so move them
under modules/ directly.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This patch adds a getLazy() method to facilitate initialize-once
lazy loading in the internals.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that the file can be snapshotted.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that the file can be snapshotted

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This moves the following utils into modules/esm/utils.js:

- Code related to default conditions
- The callbackMap (which is now created in the module instead of
  hanging off the module_wrap binding, since the C++ land
  does not need it).
- Per-isolate module callbacks

These are self-contained code that can be included into the
built-in snapshot.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This patch makes the top-level access to runtime states in the
CJS loader lazy, and move the side-effects into a
initializeCJS() function that gets called during pre-execution.
As a result the CJS loader can be included into the built-in
snapshot.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Preload essential modules and lazy-load non-essential ones.
After this patch, all modules listed by running this snippet:

```
const list = process.moduleLoadList.join('\n');
require('fs').writeSync(1, list, 'utf-8');
```

(which is roughly the same list as the one in
test-bootstrap-module.js for the main thread)
are loaded from the snapshot so no additional compilation cost
is incurred.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Original commit message:

    [snapshot] Dont defer ByteArray when serializing

    JSTypedArray needs the base_pointer ByteArray immediately
    if it's on heap. JSTypedArray's base_pointer was initialized
    to Smi::uninitialized_deserialization_value at first when
    deserializing, and if base_pointer was deferred, we will
    mistakenly check JSTypedArray not on heap.

    Bug: v8:13149
    Change-Id: I104c83ff9a2017de1c8071a9e116baa602f6977d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3813068
    Reviewed-by: Jakob Linke <[email protected]>
    Commit-Queue: 王澳 <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#82254}

Refs: v8/v8@d69c793
PR-URL: nodejs/node#46425
Reviewed-By: Joyee Cheung <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
PR-URL: nodejs/node#46425
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that we can add multiple initialization scripts in the test runner.

Refs: nodejs/node#44483
PR-URL: nodejs/node#46425
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
It turns out that even with startup snapshots, there is a non-trivial
overhead for loading internal modules. This patch makes the loading
of the non-essential modules lazy again.

Caveat: we have to make some of the globals lazily-loaded too,
so the WPT runner is updated to test what the state of the global
scope is after the globals are accessed (and replaced with the
loaded value).

PR-URL: nodejs/node#45659
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Daeyeon Jeong <[email protected]>
Reviewed-By: Jacob Smith <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>
Reviewed-By: Tierney Cyren <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Since the module has to be loaded during bootstrap anyway.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
The helpers are actually shared by the two loaders, so move them
under modules/ directly.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This patch adds a getLazy() method to facilitate initialize-once
lazy loading in the internals.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that the file can be snapshotted.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
So that the file can be snapshotted

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This moves the following utils into modules/esm/utils.js:

- Code related to default conditions
- The callbackMap (which is now created in the module instead of
  hanging off the module_wrap binding, since the C++ land
  does not need it).
- Per-isolate module callbacks

These are self-contained code that can be included into the
built-in snapshot.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
This patch makes the top-level access to runtime states in the
CJS loader lazy, and move the side-effects into a
initializeCJS() function that gets called during pre-execution.
As a result the CJS loader can be included into the built-in
snapshot.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Preload essential modules and lazy-load non-essential ones.
After this patch, all modules listed by running this snippet:

```
const list = process.moduleLoadList.join('\n');
require('fs').writeSync(1, list, 'utf-8');
```

(which is roughly the same list as the one in
test-bootstrap-module.js for the main thread)
are loaded from the snapshot so no additional compilation cost
is incurred.

PR-URL: nodejs/node#45849
Backport-PR-URL: nodejs/node#46425
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
sercher added a commit to sercher/graaljs that referenced this pull request Apr 25, 2024
Original commit message:

    [snapshot] Dont defer ByteArray when serializing

    JSTypedArray needs the base_pointer ByteArray immediately
    if it's on heap. JSTypedArray's base_pointer was initialized
    to Smi::uninitialized_deserialization_value at first when
    deserializing, and if base_pointer was deferred, we will
    mistakenly check JSTypedArray not on heap.

    Bug: v8:13149
    Change-Id: I104c83ff9a2017de1c8071a9e116baa602f6977d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3813068
    Reviewed-by: Jakob Linke <[email protected]>
    Commit-Queue: 王澳 <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#82254}

Refs: v8/v8@d69c793
PR-URL: nodejs/node#46425
Reviewed-By: Joyee Cheung <[email protected]>
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