Re: timing

New Message Reply Date view Thread view Subject view Author view

Bernard Leclerc (bleclerc++at++cae.ca)
Mon, 20 Nov 1995 19:15:17 -0500

On Nov 20, 5:27pm, Renee Maheshwari wrote:

> Hi all,
>
> Does anyone know what the accuracy of pfGetTime() is on an Onyx? I
> guess the default is 10ms resolution, but I was wondering if there was a way
> to get millisecond or better accuracy.
>

Renee,

By default, Performer uses the best clock available on the host. If I recall
correctly, on an Onyx Performer uses a hardware counter giving you a resolution
of 62.5 nanoseconds.

Look at the man page for "syssgi" under SGI_QUERY_CYCLECNTR for more details.

--
      ___/      |        ___/	Bernard Leclerc		e-mail: bleclerc++at++cae.ca
     /        / |       /	Systems Engineer	voice: +1 514 341 2000
    /        /  |      __/	CAE Electronics Ltd.		extension 2275
   /        /   |     /		8585 Cote De Liesse	fax:   +1 514 340 5496
  /        ____ |    /		P.O. Box 1800
_____/   _/    _|  _____/	Saint-Laurent, Quebec, Canada, H4L-4X4

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:52:03 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.