Path: utzoo!attcan!uunet!cs.utexas.edu!husc6!rice!sun-spots-request
From: dlw@odi.com (Dan Weinreb)
Newsgroups: comp.sys.sun
Subject: High-resolution clock for metering on Sun 3's available?
Keywords: Hardware
Message-ID: <8905091846.AA01248@odi.com>
Date: 17 May 89 16:11:34 GMT
Sender: usenet@rice.edu
Organization: Sun-Spots
Lines: 14
Approved: Sun-Spots@rice.edu
Original-Date: Tue, 9 May 89 14:46:15 EDT
X-Sun-Spots-Digest: Volume 7, Issue 290, message 9 of 13

I would like to do some metering and performance analysis for which it is
essential to have a real-time clock of higher resolution than the roughly
16ms clock provided on my Sun 3. 

Ideally, I'd like a clock with microsecond resolution.  It should ideally
come with a device driver that lets me map the clock directly into my
virtual address space, so that I can read the clock without incurring the
overhead of a system call.  Super-ideally it should be attachable to a Sun
3/60, but if it could plug into a Sun 3/160, that would be fine.

Does anyone know where I might be able to buy such a device?  Thanks.

Daniel Weinreb		Object Design, Inc.
dlw@odi.com   (or ...!uunet!odi!dlw)