Date: Tue, 7 Oct 1997 23:27:32 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: mdean <mdean@best.com> Cc: Peter Dufault <dufault@hda.com>, hackers@FreeBSD.ORG Subject: Re: A world of unexplored pain. Message-ID: <Pine.BSF.3.95.971007232512.1324B-100000@current1.whistle.com> In-Reply-To: <Pine.SGI.3.95.971007230627.18695B-100000@shellx.best.com>
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On Tue, 7 Oct 1997, mdean wrote: > > Yes, through the acquire_timer0() call, does anyone know if acquiring the > timer at a raised rate for a lengthy perios of time has any detrimental > effects? > > > well for a start in FreeBSD the system provides a way of raising > > the hardware clockrate transparently on the fly to do this sort > > of thing the PCAUDIO device routinelyu raises the clockrate to > > 16000 Hz. > > > > OIf what you plan to do canbe done in a few instructiosn then, NO, there is no detrimental effect that I have ever seen, we run it here at 1KHz and 10KHz, and have seen no problems. clock is at a high priority, so jitter should be low. Just remember to keep what you want to a minimum, and do all the rest of the work elsewhere.
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