[Webkit-unassigned] [Bug 230126] [bmalloc] Add API to release heap's large free

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Sep 17 11:02:21 PDT 2021


Filip Pizlo <fpizlo at apple.com> changed:

           What    |Removed                     |Added
                 CC|                            |fpizlo at apple.com

--- Comment #2 from Filip Pizlo <fpizlo at apple.com> ---
(In reply to Basuke Suzuki from comment #0)
> Our platform has a quota for each apps and that is caused by limiting the
> virtual address space. If the memory is requested from other part (the part
> outside WebKit), it will crash. In case of high memory usage, sometime it is
> useful to release bmalloc's large free region to kernel for others to be
> ready to assign.

So - the key thing is that you need to actually munmap as opposed to madvise to decommit?

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