*BSD News Article 32480


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Newsgroups: comp.os.386bsd.misc
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From: hasty@netcom.com (Amancio Hasty Jr)
Subject: Re: FreeBSD platform
Message-ID: <hastyCsHzEI.2Kv@netcom.com>
Organization: Netcom Online Communications Services (408-241-9760 login: guest)
References: <2v79ig$s8u@masala.cc.uh.edu> <2v7tf4$ctj@mojo.eng.umd.edu> <2v87c0$6vo@masala.cc.uh.edu>
Date: Wed, 6 Jul 1994 02:39:53 GMT
Lines: 33

In article <2v87c0$6vo@masala.cc.uh.edu> wjin@moocow.cs.uh.edu (Woody Jin) writes:
>In article <2v7tf4$ctj@mojo.eng.umd.edu>,
>Charles B. Robey <chuckr@glue.umd.edu> wrote:
>>Woody Jin (wjin@moocow.cs.uh.edu) wrote:
>>: bj@staff.cc.purdue.edu (Ben Jackson) wrote:
>
>One problem is that it is very difficult to expect the hit ratio of cache in
>muti-tasking OS.
>The only way is to compare the performance  by running various applications.

>Woody Jin

Well, compiling the kernel takes about 3 times longer with cache disabled
than with cache enabled. Originally, I had a 486 33Mhz with 64k cache and
enabling cache did speed up the overall performance of my system.

Other cpu intensive apps such as 3d rendering, povray, do benefit from
cache.


Amancio







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