This is a reland of commit dc91addeefhttps://crrev.com/c/4042290 has fixed an issue with the sandbox
initialization on Windows which would lead to less available address
space in the sandbox. This reland further allows for a smaller backing
memory region for the ArrayBufferAllocator. Together, this should
guarantee that backing memory can always be allocated.
Original change's description:
> Reland "[sandbox] Improve the default ArrayBufferAllocator for the sandbox"
>
> This is a reland of commit f08547afd4
>
> All ArrayBufferAllocators now share a backend allocator which owns the
> backing memory. This fixes the address space exchaustion issues.
>
> Original change's description:
> > [sandbox] Improve the default ArrayBufferAllocator for the sandbox
> >
> > Rather than using a page allocator and rounding all allocation request
> > sizes up to the next multiple of the OS page size, we now use a
> > base::RegionAllocator with a "page size" of 128 as a compromise between
> > the number of regions it needs to manage and the amount of wasted memory
> > due to allocations being rounded up to a multiple of that page size.
> > While this is still not as performant as a "real" allocator, it does
> > noticeably improve performance when allocating lots of ArrayBuffers.
> >
> > Bug: chromium:1340224
> > Change-Id: I56d1ab066ba55710864bdad048fb620078b2d8c2
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3913346
> > Commit-Queue: Samuel Groß <saelo@chromium.org>
> > Reviewed-by: Igor Sheludko <ishell@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#83396}
>
> Bug: chromium:1340224
> Change-Id: Ia52eeb695ad89cc6146807fda040281ac5fdaf59
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3916640
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Samuel Groß <saelo@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83502}
Bug: chromium:1340224
Change-Id: I196c66012e1c8418797d46c01fb7a3be4bcf7c0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4038262
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84423}
f7260c5e14