Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!ucbvax!hplabs!hpfcso!hpfinote!pnl
From: pnl@hpfinote.HP.COM (Peter Lim)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Refresh / 387 pipeline ?
Message-ID: <36690001@hpfinote.HP.COM>
Date: 14 Aug 90 17:30:07 GMT
Organization: Hewlett Packard CICD
Lines: 21

This is a general interest question.

My 386 motherboard (25 MHz, no cache) has a switch on it which allows
a user to select pipeline or non-pipeline for the 30387.

I have a program (ATPERF) that apparently can check for refresh
overhead. With pipeline selected, the overhead is about 35.6 %.
With non-pipeline selected, the overhead is like 6 %. But somehow,
I feel that with pipeline selected, general applications run faster.
So, what gives ?

What is the pipeline thing actually do anyway ?


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