Date: Fri, 7 Apr 1995 23:49:14 +0200 (MET DST) From: Ollivier Robert <Ollivier.Robert@keltia.frmug.fr.net> To: rgrimes@gndrsh.aac.dev.com (Rodney W. Grimes) Cc: freebsd-current@FreeBSD.org (FreeBSD Current Users' list) Subject: Re: Label/slices : how to add a disk ? Message-ID: <199504072149.XAA04506@keltia.frmug.fr.net> In-Reply-To: <199504070923.CAA07043@gndrsh.aac.dev.com> from "Rodney W. Grimes" at Apr 7, 95 02:23:09 am
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It seems that Rodney W. Grimes said:
> How much memory is in this machine??? As a note to folks it really
20 MB. 2.1-not-so-current.
FreeBSD keltia 2.1.0-Development FreeBSD 2.1.0-Development #13: Sun Apr 2 21:38:04 MET DST 1995 roberto@keltia:/spare/usr/src/sys/compile/KELTIA i386
> This is on a 16MB machine, P54C-90, NCR810 controller iozone 2.01: The
> buffer cache become ineffective at 8MB transfer size, but still skewed
> the numbers some (~200K/sec).
I'm sorry for your P90 machine. This is a 486DX-33. It uses a BT-747S EISA
controller. The Conner 1080S gives me that with iozone 2.01 :
204 [18:15] root@keltia:/mnt# ~/Src/C/iozone_2.01/iozone 128 8192
IOZONE: Performance Test of Sequential File I/O -- V2.01 (10/21/94)
By Bill Norcott
Operating System: FreeBSD 2.1 - fsync
Send comments to: b_norcott@xway.com
IOZONE writes a 128 Megabyte sequential file consisting of
16384 records which are each 8192 bytes in length.
It then reads the file. It prints the bytes-per-second
rate at which the computer can read and write files.
Writing the 128 Megabyte file, 'iozone.tmp'...30.125000 seconds
Reading the file...30.554688 seconds
IOZONE performance measurements:
4455360 bytes/second for writing the file
4392704 bytes/second for reading the file
Even the 128 512 iozone result is amazing :
206 [18:22] root@keltia:/mnt# ~/Src/C/iozone_2.01/iozone 128 512
IOZONE: Performance Test of Sequential File I/O -- V2.01 (10/21/94)
By Bill Norcott
Operating System: FreeBSD 2.1 - fsync
Send comments to: b_norcott@xway.com
IOZONE writes a 128 Megabyte sequential file consisting of
262144 records which are each 512 bytes in length.
It then reads the file. It prints the bytes-per-second
rate at which the computer can read and write files.
Writing the 128 Megabyte file, 'iozone.tmp'...86.078125 seconds
Reading the file...48.976562 seconds
IOZONE performance measurements:
1559254 bytes/second for writing the file
2740448 bytes/second for reading the file
--
Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.frmug.fr.net
FreeBSD keltia 2.1.0-Development #13: Sun Apr 2 21:38:04 MET DST 1995
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