New subject: [Bug 53419] HeapReAlloc is slower than HeapFree, HeapAlloc + memcpy combos

26 Jul 2022


      https://bugs.winehq.org/show_bug.cgi?id=53419
Bug ID: 53419
           Summary: HeapReAlloc is slower than HeapFree, HeapAlloc +
                    memcpy combos
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: wine-bugs@winehq.org
          Reporter: euloanty@live.com
      Distribution: ---
This shouldn't happen.
HeapReAlloc
cqwrteur@HOME-SERVER:~/Libraries/fast_io/benchmark/0011.containers/vector/0002.multi_push_back$
wine ./vector.exe
fast_io::vectors:5.3254482s
HeapAlloc combos
cqwrteur@HOME-SERVER:~/Libraries/fast_io/benchmark/0011.containers/vector/0002.multi_push_back$
wine ./vector.exe
fast_io::vectors:3.2410441s
On Windows:
HeapReAlloc
D:\hg\fast_io\benchmark\0011.containers\vector\0002.multi_push_back>vector
fast_io::vectors:2.1215775s
HeapAlloc combos
D:\hg\fast_io\benchmark\0011.containers\vector\0002.multi_push_back>vector
fast_io::vectors:2.1650619s
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[Bug 53419] New: HeapReAlloc is slower than HeapFree, HeapAlloc + memcpy combos