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bootstrap: only use the isolate snapshot when compiling code cache

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We do not actually need to deserialize the context and the whole
environment to compile the code cache, since code cache are not
context-dependent anyway, deserializing just the isolate snapshot is
enough.

PR-URL: https://github.com/nodejs/node/pull/49288
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
This commit is contained in:
Joyee Cheung 2023-08-18 15:36:48 +02:00
parent 12354260db
commit 4d0f930183
No known key found for this signature in database
GPG Key ID: 92B78A53C8303B8D
1 changed files with 7 additions and 18 deletions
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25
src/node_snapshotable.cc
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@ -975,21 +975,8 @@ ExitCode BuildSnapshotWithoutCodeCache(
ExitCode BuildCodeCacheFromSnapshot(SnapshotData* out,
const std::vector<std::string>& args,
const std::vector<std::string>& exec_args) {
std::vector<std::string> errors;
auto data_wrapper = out->AsEmbedderWrapper();
auto setup = CommonEnvironmentSetup::CreateFromSnapshot(
per_process::v8_platform.Platform(),
&errors,
data_wrapper.get(),
args,
exec_args);
if (!setup) {
for (const auto& err : errors)
fprintf(stderr, "%s: %s\n", args[0].c_str(), err.c_str());
return ExitCode::kBootstrapFailure;
}
Isolate* isolate = setup->isolate();
RAIIIsolate raii_isolate(out);
Isolate* isolate = raii_isolate.get();
v8::Locker locker(isolate);
Isolate::Scope isolate_scope(isolate);
HandleScope handle_scope(isolate);
@ -1002,12 +989,14 @@ ExitCode BuildCodeCacheFromSnapshot(SnapshotData* out,
}
});
Environment* env = setup->env();
Local<Context> context = Context::New(isolate);
Context::Scope context_scope(context);
builtins::BuiltinLoader builtin_loader;
// Regenerate all the code cache.
if (!env->builtin_loader()->CompileAllBuiltins(setup->context())) {
if (!builtin_loader.CompileAllBuiltins(context)) {
return ExitCode::kGenericUserError;
}
env->builtin_loader()->CopyCodeCache(&(out->code_cache));
builtin_loader.CopyCodeCache(&(out->code_cache));
if (per_process::enabled_debug_list.enabled(DebugCategory::MKSNAPSHOT)) {
for (const auto& item : out->code_cache) {
std::string size_str = FormatSize(item.data.length);