3b9091c827
Reduce the enqueuing cost of compiler-dispatcher jobs by getting rid of
the sets and hashmaps, and instead:
1. Turning the pending job set into a queue, and
2. Making the SharedFunctionInfo's UncompiledData hold a pointer to
the LazyCompilerDispatcher::Job, instead of maintaining an
IdentityMap from one to the other.
To avoid bloating all UncompiledData, this adds two new UncompiledData
subclasses, making it four subclasses total, for with/without Preparse
data and with/without a Job pointer. "should_parallel_compile"
FunctionLiterals get allocated an UncompiledData with a job pointer by
default, otherwise enqueueing a SFI without a job pointer triggers a
reallocation of the UncompiledData to add a job pointer.
Since there is no longer a set of all Jobs (aside from one for
debug-only), we need to be careful to manually clear the Job pointer
from the UncompiledData whenever we finish a Job (whether successfully
or by aborting) and we have to make sure that we implicitly can reach
all Jobs via the pending/finalizable lists, or the set of currently
running jobs.
Change-Id: I3aae78e6dfbdc74f5f7c1411de398433907b2705
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3314833
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78302}
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| benchmarks | ||
| bigint | ||
| cctest | ||
| common | ||
| debugger | ||
| debugging | ||
| fuzzer | ||
| fuzzilli | ||
| inspector | ||
| intl | ||
| js-perf-test | ||
| memory | ||
| message | ||
| mjsunit | ||
| mkgrokdump | ||
| mozilla | ||
| test262 | ||
| torque | ||
| unittests | ||
| wasm-api-tests | ||
| wasm-js | ||
| wasm-spec-tests | ||
| webkit | ||
| BUILD.gn | ||
| OWNERS | ||