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jason
2020 Jul 03
4
[cfe-dev] RFC: Replacing the default CRT allocator on Windows
...ng large memory savings from switching, but I haven't seen performance comparisons.
If the performance is good, seems like that might be the simplest choice
https://docs.microsoft.com/en-us/windows/win32/sbscs/application-manifests#heaptype
https://www.blackhat.com/docs/us-16/materials/us-16-Yason-Windows-10-Segment-Heap-Internals.pdf
On Thu, Jul 2, 2020, 12:20 AM Alexandre Ganea via cfe-dev <cfe-dev at lists.llvm.org<mailto:cfe-dev at lists.llvm.org>> wrote:
Hello,
I was wondering how folks were feeling about replacing the default Windows CRT allocator in Clang, LLD and other...
2020 Jul 02
6
RFC: Replacing the default CRT allocator on Windows
Hello,
I was wondering how folks were feeling about replacing the default Windows CRT allocator in Clang, LLD and other LLVM tools possibly.
The CRT heap allocator on Windows doesn't scale well on large core count machines. Any multi-threaded workload in LLVM that allocates often is impacted by this. As a result, link times with ThinLTO are extremely slow on Windows. We're observing