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DES Document 572-v1

Microsecond Delays on Non-Real Time Operating Systems

Document #:
Document type:
Conference Publication
Submitted by:
Tom Diehl
Updated by:
Robert Angstadt
Document Created:
04 May 2007, 15:18
Contents Revised:
04 May 2007, 15:18
Metadata Revised:
23 May 2007, 16:51
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For some computer applications such as shutter control for Charge-Coupled Devices (CCD) testing for the Dark Energy Survey (DES), we have developed microsecond timing and profiling software that runs on standard Windows and Linux based operating systems. This software is orders of magnitudes better than most of the standard native functions in wide use.
Our software libraries calibrate RDTSC in microseconds or seconds to provide two different types of delays: a “Guaranteed Minimum” and a precision “Long Delay”, which releases to the kernel. Both return profiling information of the actual delay.
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Notes and Changes:
15th ieee real time conference paper
Referenced by:
  • DES-doc-2918: excel replacement for tcl code : helper dll files put in /windows/system32
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