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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)