Opt into Windows SegmentHeap

[Andarwinux]

SegmentHeap provides a faster malloc implementation that only available with Dynamic UCRT in Windows 10, version 2004 (build 19041) and later

[xavier2k6]

Wrong schema setting being used!!!

It needs to have it's own, see: https://learn.microsoft.com/en-au/windows/win32/sbscs/application-manifests#heaptype

    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2020/WindowsSettings">
      <heapType>SegmentHeap</heapType>

---

[Chocobo1]

The "faster than NT Heap" somehow troubles me. I've seen some reports about it being slower:
https://issues.chromium.org/issues/40138716
microsoft/Windows-Dev-Performance#106

@Andarwinux
Just curious, have you benchmarked qbt with it enabled?
You could just omit faster than NT Heap and we'll be fine.

[Andarwinux]

SegmentHeap can greatly improve deallocating memory speed, see minetest/minetest#14127 and mpv-player/mpv#13137, which will improve exit speed when qBittorrent has a huge memory cache (32GB). But yes, on the other hand it does reduce performance in some extreme cases.

[xavier2k6]

Unsure if comment is ok "as-is", but some alternatives:

<!-- Enable Segment Heap on supported platforms (requires Windows 10 2004 or newer) -->

<!-- Override Windows default heap implementation with more modern "Segment Heap" on supported platforms (requires Windows 10 2004 or newer) -->

[Chocobo1]

@Andarwinux
Thank you!