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From: mcculley@alien.enet.dec.com
Newsgroups: comp.sys.dec
Subject: Re: Clock interval on MIPS workstations
Message-ID: <23384@shlump.lkg.dec.com>
Date: 11 Jun 91 18:25:54 GMT
Sender: newsdaemon@shlump.lkg.dec.com
Organization: Digital Equipment Corporation
Lines: 17


In article <1292@sousa.ltn.dec.com>, pilmeyer@utrtsc.dec.com writes...
>In article <1991Jun9.233056.12085@news.iastate.edu>, 
>	vancleef@iastate.edu (Van Cleef Henry H) writes...
>>I am using the difference between two gettimeofday() calls to measure
>>real-time performance.  What is the number of microseconds added each
>>time the clock ticks.  
>On the MIPS based DECstations the clock runs at 256 Hz. [...]

Henry's original question mentioned that the same question was posted to
comp.unix.ultrix but got no responses.  For the sake of completeness it
probably should be mentioned here that there was a subsequent answer there
(from Jeff Mogul) that not only gave the same information as Han's post here,
but also added that other clock rates were possible and offered a modified
clock driver to implement them.

--bruce