[911] in linux-scsi channel archive
Re: termination
daemon@ATHENA.MIT.EDU (Francisco J. Montilla)
Sun Nov 10 20:36:15 1996
Date: Sun, 10 Nov 1996 20:09:43 -0500 (EST)
From: "Francisco J. Montilla" <pacopepe@nova.es>
To: Russell Berry <rberry@albany.net>
Cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <327FC184.3ACFD4BF@albany.net>
On Tue, 5 Nov 1996, Russell Berry wrote:
[...]
> I leavith it alone...and it works. Do these numbers look okay???
>
> hdparm -t /dev/sda
>
> /dev/sda:
> Timing buffered disk reads: 16 MB in 0.67 seconds =23.88 MB/sec
That looks _very_ good... what it doesn't is mine:
/dev/sda:
Timing buffered disk reads: 16 MB in 7.47 seconds = 2.14 MB/sec
:-o Isn't that abnormal? I'm using that HD to master CD
images to later burn CDs with no problems, but those are a very poor
results...
My System is a iDX4-100 w/ 28 Mb RAM, 2 IDE HDs (on IDE 0),
NCR53c815 (same as 810, but with its own BIOS), Quantum FireBall 1.2 Gb
HD, well, these are the SCSI devices as recognised using the ncr53c8xx
driver:
-----------
ncr53c8xx : at PCI bus 0, device 11, function 0
ncr_attach: unit=0 chip=815 base=f0800000, io_port=6000, irq=11
ncr53c815-0: using memory mapped IO at virtual address 0x2027000
ncr53c815-0: initial value of SCNTL3 = 03, final = 13
ncr53c815-0: requesting shared irq 11 (dev_id=0xc08068)
ncr53c815-0: restart (scsi reset).
scsi0 : ncr53c8xx (rel 1.12c)
scsi : 1 host.
Vendor: QUANTUM Model: FIREBALL1280S Rev: 630G
Type: Direct-Access ANSI SCSI revision: 02
Vendor: TOSHIBA Model: CD-ROM XM-3701TA Rev: 0236
Type: CD-ROM ANSI SCSI revision: 02
Vendor: YAMAHA Model: CDR102 Rev: 1.01
Type: WORM ANSI SCSI revision: 02
--------------
and this when the HD is mounted:
--------------
ncr53c815-0-<target 0, lun 0>: FAST SCSI-2 100ns (10 Mb/sec) offset 8.
--------------
and that's what the 53c7,8xx driver says:
-------------
scsi-ncr53c7,8xx : at PCI bus 0, device 11, function 0
scsi-ncr53c7,8xx : NCR53c815 at memory 0xf0800000, io 0x6000, irq 11
scsi0 : burst length 2
scsi0 : NCR code relocated to 0xe20600 (virt 0x00e20600)
scsi0 : test 1 started
scsi0 : NCR53c{7,8}xx (rel 17)
scsi : 1 host.
scsi0 : target 0 accepting period 100ns offset 8 10.00MHz FAST SCSI-II
scsi0 : setting target 0 to period 100ns offset 8 10.00MHz FAST SCSI-II
Vendor: QUANTUM Model: FIREBALL1280S Rev: 630G
Type: Direct-Access ANSI SCSI revision: 02
scsi0 : target 2 accepting period 204ns offset 8 4.90MHz synchronous SCSI
scsi0 : setting target 2 to period 224ns offset 8 4.46MHz synchronous
SCSI
Vendor: TOSHIBA Model: CD-ROM XM-3701TA Rev: 0236
Type: CD-ROM ANSI SCSI revision: 02
scsi0 : target 4 rejected SDTR
scsi0 : setting target 4 to asynchronous SCSI
Vendor: YAMAHA Model: CDR102 Rev: 1.01
Type: WORM ANSI SCSI revision: 02
------------
and this when mounting the HD:
-------------
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2503872 [1222 MB] [1.2
GB]
sda: ANSI SCSI revision: 02 4.46MHz synchronous SCSI 2
scsi0 : target 0 accepting period 100ns offset 8 10.00MHz FAST SCSI-II
scsi0 : setting target 0 to period 100ns offset 8 10.00MHz FAST SCSI-II
-------------
Both gave me that similar poor results. I also have a sound card,
a Startech 2 serial/1 parallel fast port controller and a qic-80 Jumbo
350 streamer.
Please, _please_, any help or info to improve this will be so
appreciated.
I'm running 2.0.24, (libc 5.2.18) and all scsi related kernel
support is compiled as modules.
I think I've provided enough data, if more is needed, don't
hesitate to ask me for...
Thanks in advance.
*****---(*)---**********************************************---------->
Francisco J. Montilla Irc: pukka Seville
pacopepe@nova.es FiDO: 2:345/402.22 Spain
INSFLUG (LiNUX) Coordinator. www.insflug.nova.es / ftp.insflug.nova.es
