src: implement minimal v8 snapshot integration by joyeecheung · Pull Request #27321 · nodejs/node

Allows instantiating a NodeMainInstance with an isolate
whose initialization and disposal are controlled by the caller.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This patch allows serializing per-isolate data into an isolate
snapshot and deserializing them from an isolate snapthot.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Implements a node_mksnapshot target that generates a snapshot blob
from a Node.js main instance's isolate, and serializes the data blob
with other additional data into a C++ file that can be embedded into
the Node.js binary.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Enable serializing the isolate from an isolate snapshot generated
by node_mksnapshot with per-isolate data.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

At build time, snapshot the context after running per-context scripts
in the main instance, and in the final build, deserialize the
context in the main instance.

This provides a ~5% in the misc/startup benchmark when the instance
is launched within a process that runs test/fixtures/semicolon.js.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This currently breaks `test/pummel/test-hash-seed.js`

PR-URL: #27365
Refs: #27321
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Allows instantiating a NodeMainInstance with an isolate
whose initialization and disposal are controlled by the caller.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This patch allows serializing per-isolate data into an isolate
snapshot and deserializing them from an isolate snapthot.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Implements a node_mksnapshot target that generates a snapshot blob
from a Node.js main instance's isolate, and serializes the data blob
with other additional data into a C++ file that can be embedded into
the Node.js binary.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Enable serializing the isolate from an isolate snapshot generated
by node_mksnapshot with per-isolate data.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

At build time, snapshot the context after running per-context scripts
in the main instance, and in the final build, deserialize the
context in the main instance.

This provides a ~5% in the misc/startup benchmark when the instance
is launched within a process that runs test/fixtures/semicolon.js.

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

PR-URL: #27321
Refs: #17058
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This currently breaks `test/pummel/test-hash-seed.js`

PR-URL: #27365
Refs: #27321
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>