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echo: os2prog
to: Christian Scarborough
from: Jonathan de Boyne Pollard
date: 1994-12-27 05:05:44
subject: DosStartTimer

CS>
  >  >                   I just can't get DosStartTimer to post a semaphore mor
  >  > frequently than 54 miliseconds (1000/18.2)
  >
  > I may be missing somethinng subtle, but why not use:
  >
  >    DosSleep(1);
CS>

  You are.  18.2Hz is the frequency of the "system heartbeat" interrupt
  which drives all thread scheduling in the system.  54ms is the
  "quantum" for timeslicing.  You cannot get finer resolution than 1
  quantum.

  > JdeBP <
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