*BSD News Article 50272


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From: shimon@ssd.intel.com (Simon Shapiro)
Newsgroups: comp.periphs.scsi,comp.os.linux.hardware,comp.unix.bsd.freebsd.misc,comp.os.linux.setup
Subject: Re: SCSI PCI host adapter
Date: 30 Aug 95 00:01:33 GMT
Organization: Scalable System Division, Intel, Inc.
Lines: 62
Message-ID: <shimon.809740893@ark>
References: <418r3m$9c6@trauma.rn.com> <419963$hst@gate.sinica.edu.tw> <41eadg$1ajc@news.mindspring.com> <41rqk7$2oj@mailhub.hcl.com> <41sjek$rtu@bonnie.tcd-dresden.de> <1995Aug29.125909.28500@wavehh.hanse.de>
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cracauer@wavehh.hanse.de (Martin Cracauer) writes:

1.  Where does one find Bonnie?

2.  Interesting that CPU utilization is 85-99%.  Does not leave much to other
    things.

3.  Where is the 8MB/Sec reported in this thread?  I saw 1.5 or so.

Cheers, Simon

>j@bonnie.heep.sax.de (J Wunsch) writes:

>>Rudy Amid <rudy@hcl.com> wrote:

>>>  How does the NCR controller compares to the Adaptec AHA2940 PCI controller?
>>>The price difference is one, but what about performance?

>>I remember some figures that claimed the AHA2940 could get about 20 %
>>more than the NCR.

>Definitivly not here. Here are "bonnie" results:

>              -------Sequential Output-------- ---Sequential Input-- --Random--
>              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
>Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU

>knight/100MHzPent/asus-ncr/barra2/FreeBSD-2.0.5-RELEASE
>          140  1543 98.6  5150 40.3  1711 16.5  1808 98.6  5211 26.8  98.1  7.1
>          140  1542 98.7  5158 40.1  1717 16.5  1809 98.9  5209 26.9  96.5  7.0
>          140  1534 98.8  5156 40.4  1717 16.6  1802 98.4  5156 26.7  97.4  7.1

>knight/100MHzPent/aha2940/barra2/FreeBSD-2.0.5-RELEASE
>          140  1584 98.9  3138 20.5  1707 19.3  1850 98.8  5209 25.3  97.6  6.1
>          140  1586 98.8  3147 20.8  1708 19.5  1852 98.6  5209 25.6  97.7  6.1
>          140  1584 98.7  3146 20.8  1714 19.5  1852 98.5  5154 25.3  96.2  6.1

>knight/100MHzPent/asus-ncr/barra2/NetBSD-current-19950620
>          140  1594 99.4  2879 17.5   991 11.1  1802 99.1  4534 29.4  87.6  6.4
>          140  1593 99.4  2887 17.8   993 11.1  1803 99.0  4579 29.1  87.1  6.2
>          140  1590 99.4  2889 17.8   989 11.2  1806 99.1  4540 29.5  87.4  6.3

>"knight" is a 100 MHz-Asus-Triton, 32 MB, the Disk is a Seagate
>Barracouda 2 GB. The test ran on the same system, only reboot to
>change hardware or OS.

>While I'm writing: I had termination problems with several NCR
>controller. The ASUS SC-200 was the only reliable I found.

>I like the Adaptec because of it's setup menue. I don't trust the NCR
>BIOS as much as the Adaptec software, but once the system is running
>that shouldn't matter.
>-- 
>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>Martin Cracauer <cracauer@wavehh.hanse.de>. No NeXTMail, please.
> Norderstedt/Hamburg, Germany. Fax +49 40 522 85 36. This is a 
> private address. At (netless) work programming in data analysis.
-- 

Simon Shapiro, Principal Database Architect
Scalable Systems Division, Intel Corporation
(shimon@ssd.intel.com, 503.629.6357)