*BSD News Article 62149


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From: rashid@rk.ios.com (Rashid  Karimov)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: HDs/SCSI-PCI perf. data.
Date: 23 Feb 1996 19:44:14 GMT
Organization: Internet Online Services
Lines: 61
Message-ID: <4gl5ee$4an@news.ios.com>
NNTP-Posting-Host: rk.ios.com
X-Newsreader: TIN [version 1.2 PL2]


		Hi there folx,


	Who are Today's Fastest ? :)


	I mean the combination of motherboard/SCSI HD/SCI adapter
	that delivers max perfomance ? max read/write speed etc ?


	I have different values here on ASUS 133/166 Mhz P5,
	150/200Mhz PPro machines( with mucho deprecated PCI set)
	and RAID Arrays.


	For example
	(command is: dd if=/dev/rsd0a of=/dev/null count=200 bs=64k)

	P166/ASUS/Aha2940(not wide,Seagate):
	13107200 bytes transferred in 2 secs (6553600 bytes/sec)
	
	P133(other stuff the same)
	52428800 bytes transferred in 8 secs (6553600 bytes/sec)

	P6-200Mhz(the same, runs INND and ~130 readers + 2 feeds
	at the time of the test):
	13107200 bytes transferred in 3 secs (4369066 bytes/sec)
	real slow comparing to the "regular" PCI chip like one
	in P5 ASUSes

	P5-166(Bustec Wide SCSI, Seagate 32250W, under BSDI) - 
	~8700000 bytes/sec


	P6-200 ASUS( hate it!) with RAID array ( all in HW no
	special drivers reqd) - only 3Mb/sec ! 


	So ... any1 here has some info on the topic to share?
	I'd really like to know read speed on  ftp.freebdf.org 
	( I wasnt able to get Alder here :))

	Any considerations of what to do to make the system fly ?
	What's the max one saw with Wide Adaptors ? 100Mb ethernet ?




	Rashid


--
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