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From: stan@shell.com (Stan Hanks)
Newsgroups: comp.os.misc,comp.unix.questions,comp.unix.wizards
Subject: Re: Realtime OS's
Summary: how slow IS Unix(TM) anyway???
Keywords: Realtime kernel interrupts
Message-ID: <366@shell.shell.com>
Date: 11 Jul 88 17:18:29 GMT
References: <10450@udenva.cair.du.edu> <8411@pur-ee.UUCP> <797@taux01.UUCP>
Sender: usenet@shell.com
Reply-To: stan@shell.UUCP (Stan Hanks)
Organization: Shell Development Company, Bellaire Research Center, Houston TX
Lines: 23

Just a quick question, while we're talking about realtime OS:

what is the nominal interrupt dispatch time for Unix (time from the 
the hardware interrupt line being yanked until your interrupt handler
is executing)? 

If you post some info on this, please include

	* the type of hardware you are using
	* the which version of Unix you are using
	* how you determined the time involved

Thanks. If you mail direct to me, I'll summarize to comp.os.misc.
Please post follow-ups to comp.os.misc.

Stan Hanks
Research Computer Scientist,                              (and Postmaster!)
Shell Development Company, Bellaire Research Center         (713) 663-2385
...!{sun,psuvax,soma,rice,decwrl,cs.texas.edu,ihnp4}!shell!stan  stan@rice.edu
Stan Hanks
Research Computer Scientist,                              (and Postmaster!)
Shell Development Company, Bellaire Research Center         (713) 663-2385
..!{sun,psuvax,soma,rice,decwrl,ut-sally,ihnp4}!shell!stan  stan@rice.edu