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From: Ollivier Robert <roberto@keltia.freenix.fr>
Message-Id: <199510081149.MAA20432@keltia.freenix.fr>
Subject: Re: VLB Disk Controllers
To: bde@zeta.org.au (Bruce Evans)
Date: Sun, 8 Oct 1995 12:49:58 +0100 (MET)
Cc: dennis@etinc.com, hackers@freebsd.org
In-Reply-To: <199510072115.HAA03150@godzilla.zeta.org.au> from "Bruce Evans" at Oct 8, 95 07:15:43 am
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It seems that Bruce Evans said:
> Buslogic BT44C on 486DX2/66 VLB (QUANTUM XP34301 (fast disk):
> output for disklatency /dev/rsd1:
> Command overhead is 3968 usec (time_4096 = 4295, time_8192 = 4622)
> transfer speed is 1.25286e+07 bytes/sec

Results for my EISA BT-747S and AHA-1740 controllers for perspective:

486DX-33 EISA/VLB, 32 MB

[[ BT-747S + Conner CFP-1080S fast disk ]]
Command overhead is 2157 usec (time_4096 = 2598, time_8192 = 3039)
transfer speed is 9.29262e+06 bytes/sec

[[ AHA-1740 + Seagate Hawk ST-31200N fast disk ]]
Command overhead is 2332 usec (time_4096 = 2806, time_8192 = 3280)
transfer speed is 8.6371e+06 bytes/sec

BTW, my last "make world" gave this:

Sat Oct  7 23:45:29 MET 1995
[...]
    34545.90 real     27665.41 user      4877.23 sys
Sun Oct  8 09:21:15 MET 1995

Without running X11. Not too bad for an "old" 486DX-33 :-)
-- 
Ollivier ROBERT    -=- The daemon is FREE! -=-    roberto@keltia.frmug.fr.net
   FreeBSD keltia.freenix.fr 2.2-CURRENT #1: Tue Oct  3 02:08:00 MET 1995