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From: Rashid  Karimov <rashid@rk.ios.com>
Message-Id: <199602231926.OAA08588@rk.ios.com>
Subject: Disk perf. with different HDs/Adapt.
To: hackers@freebsd.org
Date: Fri, 23 Feb 1996 14:26:28 -0500 (EST)
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		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