Graphics application program runs slowly.

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Problem:

Graphics-based application program runs very slowly  under Bounds-Checker.

Resolution:

Some programs run very slowly under BOUNDS-CHECKER

  when an EMS memory manager is loaded. Apparently some graphics

  libraries will use the EMS memory manager to access Upper Memory

  Blocks, which causes BOUNDS-CHECKER to trap repeatedly, slowing

  execution of the application program. EMM386 is the worst offender

  in this regard, followed by QEMM. 386MAX and Soft-ICE have a lesser

  effect, although still very noticeable. Presently the only choice

  is to run with no EMS manager, just HIMEM.SYS.

It may also help to link the program with BC4.OBJ and make sure

  you don't have a network link as the last module.

Old KB# 12297
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