Linux-Hardware Digest #344, Volume #13 Wed, 2 Aug 00 18:13:11 EDT
Contents:
Re: slow PIII850MHz performance... (EKK)
Re: CD-RW - IDE or SCSI? ("Clifton T. Sharp Jr.")
Ultra 66 Support ("Niklas Krumm")
Newbie sound problem ("Steve Riskus")
Coppermine SLOW PERFORMANCE... (EKK)
RGB video card for Wintel (Lars Cedar)
Re: Arkeia Backup Software with an IDE streamer? (John Antrosiglio)
Re: CD-RW - IDE or SCSI? (Carlos)
deleted partition table (Sean)
Re: best distro for old machine ("Mark Langsdorf")
Re: Why is Athon 650 slower than P-II/400? !!!SOLVED!!! (James Knowles)
Re: Why is Athon 650 slower than P-II/400? (James Knowles)
Re: OkiPage 4w plus (Florian Forster)
Re: Coppermine SLOW PERFORMANCE... (Vincent Fox)
Re: Athalon Motherboards/ Linux Support (James Knowles)
Re: Coppermine SLOW PERFORMANCE... (Johan Kullstam)
Modem "Best 2400 L", winmodem or not? (Andreas Berglund)
REQ printers (alexisc)
Re: Coppermine SLOW PERFORMANCE... (EKK)
Re: Why is Athon 650 slower than P-II/400? !!!SOLVED!!! (Johan Kullstam)
Can Redhat 6.2 run on Umsdos filesystems(FAT32)?Answer to my E-mail PLEASE.
("Aleksandar Antok")
Re: CD-RW - IDE or SCSI? ([EMAIL PROTECTED])
Re: deleted partition table (Dances With Crows)
intel 740 AGP ("Lalo")
Re: deleted partition table ([EMAIL PROTECTED])
Re: Coppermine SLOW PERFORMANCE... (Vincent Fox)
Re: Why is Athon 650 slower than P-II/400? (David C.)
Re: Coppermine SLOW PERFORMANCE... (Kent Perrier)
----------------------------------------------------------------------------
From: EKK <[EMAIL PROTECTED]>
Subject: Re: slow PIII850MHz performance...
Date: Wed, 02 Aug 2000 04:52:23 -0700
EKK wrote:
>
> Hello,
>
> We recently bought a dual PIII machine with this motherboard
> and hard drive, CPU, etc.:
>
> TYAN TIGER 133 (VIA APOLLO PRO 133A) (Slot 1)
> (VT82C596B)
> WINBOND W83977ATF Super I/O CHIP
>
> IBM DTLA 307045 (45GB IDE UDMA66)
>
> 2 x PIII-850MHz
>
> 1GB RAM
>
> Redhat 6.1
>
> Now, this runs at 100Mhz, got PC100 memory.
> I run the same analysis code, compiled with g77,
> as a benchmark. I have two other machines:
>
> PII450MHz and PIII650MHz.
>
> The 650 is approx. 1.4 times faster than 450.
>
> BUT
>
> The 850 is approx. 1.1 times faster than 450.
>
> !!!!!!
>
> No matter what I do to the bios settings, I still
> get this problem.
>
> I compiled the kernel for SMP, and included the
> VT82***** IDE chipset option, since that's the
> chip on this motherboard.
>
> I cannot figure out why this is SOOO SLOW!!!!!!
>
> Anybody had a similar experience???? Is it the
> mboard?
>
> Thank you,
>
> AG
Curiously enough, 'top' reports 99.9% of CPU is being
used, which is unlike other sys. I have, with RH6.0,
which reports 49.9% PER CPU. (These are all dual
PIII systems.)
Perhaps top got fixed between RH6.0 and RH6.1???
Does anybody have an opinion on whether I should try
installing RH6.2 first? The kernel is the latest
version, so I would think RH6.1 is still OK (since
it works on all other machines.) (kernel 2.2.16)
AG
--
Alessandro Giachino, Software Engineer
EKK Inc.
2065 West Maple C309 tel. 248-624-9957
Walled Lake MI 48390 fax. 248-624-7158
_____________________________________________
http://www.ekkinc.com
------------------------------
From: "Clifton T. Sharp Jr." <[EMAIL PROTECTED]>
Subject: Re: CD-RW - IDE or SCSI?
Date: Wed, 02 Aug 2000 13:30:44 -0500
Phil Regier wrote:
> Would it be worth the extra expense to go the SCSI route,
> or would the IDE be sufficient?
I bought IDE, not knowing any better, and it was a BIIIIIIIIIIIG mistake.
--
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Cliff Sharp | Hate spam? Take the Boulder Pledge! |
| WA9PDM | http://www.zdnet.com/yil/content/mag/9612/ebert9612.html |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
------------------------------
From: "Niklas Krumm" <[EMAIL PROTECTED]>
Subject: Ultra 66 Support
Date: Wed, 2 Aug 2000 11:52:17 -0700
Hello,
I was wondering what the current state of support for Ultra/66 is for linux?
If I attach an ultra 66 HD to a motherboard that supports both U/66 and
U/33, does linux recognize this setup as Ultra 33? This would be nice
because then when kernal 2.4 comes out, (with U/66 support, hopefully) I can
upgrade and use the hard drive at full speed. Thanks,
Niklas Krumm
------------------------------
From: "Steve Riskus" <[EMAIL PROTECTED]>
Subject: Newbie sound problem
Date: Wed, 2 Aug 2000 14:55:36 -0400
Ive installed caldera open linux 2.2 on my computer and now im trying to
configure sound. My soundcard is a ensoniq soundscape vivo. My problem is I
do not know the cards I/O address. IRQ or DMA setting and i do not have
windows so I cant use device manager to find them out. Is there a way to
find these values by looking at the motherboard? If not where do I find
them. The manuals for the sound card and motherboard are no help at all.
thanks
Steve
------------------------------
From: EKK <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Coppermine SLOW PERFORMANCE...
Date: Wed, 02 Aug 2000 05:32:08 -0700
OK,
I HAVE SAID THIS BEFORE, BUT DIDN'T GET AS MUCH RESPONSE
AS I THOUGH I WOULD.
HAS ANYONE EXPERIENCED BELOW-EXPECTATIONS PERFORMANCE FROM
COPPERMINE PENTIUM III CHIPS?
MY NEW PIII850, PIII650 PERFORM ONLY MARGINALLY BETTER THAN
MY OLD PII450.
CACHE!!!!
IS THIS OR IS THIS NOT AN ISSUE?
SUPPOSEDLY THE NEW 256KB ON-DIE CACHE IS MORE EFFICIENT, BUT
PERHAPS ONLY FOR MUNDANE WINDOWS TASKS. IF I AM RUNNING A
MEMORY-INTENSIVE LARGE PROBLEM THAT IS MOSTLY FLOATING POINT
OPERATIONS, AM I BETTER OFF WITH THE LARGER CACHE.
IT SEEMS TO BE THE CASE WITH OTHER PROCESSORS, LIKE MIPS OR
ALPHA. FOR EXAMPLE THE ALPHA 667MHZ (DP264) HAS A FAT 4MB
CACHE AND IT IS TWICE AS FAST AS A PIII500(512KB CACHE).
ALSO, THE MIPS PROCESSORS FREQUENCY IS BELOW PENTIUM FREQ.
BUT THE LARGER CACHE USUALLY SEEMS TO MAKE UP IN OVERALL
SPEED.
NOW. I KNOW THE ALPHA IS THE FASTEST OUT THERE AND I AM
VERY HAPPY WITH IT, BUT I THOUGHT THAT A PIII850 WOULD AT
LEAST BE 1.5 TIMES FASTER THAN A PII450.
WHAT IS GOING ON?????
SHOULD I JUST RETURN THESE NEW PROCESSORS AND HUNT FOR AN
EXTINCT PIII600MHZ WITH THE OLD-STYLE 512KB CACHE????????
PERPLEXED,
AG
--
P.S.: PLEASE ALSO REFER TO MESSAGE WITH HEADER:
"slow PIII850MHz performance..."
THANK YOU MUCH.
Alessandro Giachino, Software Engineer
EKK Inc.
2065 West Maple C309 tel. 248-624-9957
Walled Lake MI 48390 fax. 248-624-7158
_____________________________________________
http://www.ekkinc.com
------------------------------
From: Lars Cedar <[EMAIL PROTECTED]>
Subject: RGB video card for Wintel
Date: Wed, 02 Aug 2000 15:14:52 -0400
Reply-To: [EMAIL PROTECTED]
Hi folks,
We have an old unix RBG trinitron that works on sun and Mac boxes, but
needs an rgb video card to work on an wintel platform. I called several
mail order houses, and even their techies can not find one for me in
their offerings.
I'm looking for recommendations an inexpensive but decent card that can
handle 1024 x 768 on a 20" rgb trinitron, that will run on a PC. I'm not
yet sure if the system this is destined for is pci or not.
For now, the system will run Windows, but probably Linux in the future,
so I'll settle for a card that doesn't yet have drivers for Linux.
Thanks!
Lars
[EMAIL PROTECTED] - please delet x before replying
------------------------------
From: John Antrosiglio <[EMAIL PROTECTED]>
Subject: Re: Arkeia Backup Software with an IDE streamer?
Date: Wed, 02 Aug 2000 19:46:40 GMT
Gene Heskett wrote:
> I don't see why not, Ronny. As long as your parport equ to mt, pt I
> think it is, can see it, then so should arkeia. Its running on my
> machine right now, but to /dev/st0 on a scsi card, and wasting half of
> each tape because it isn't using the hardware compression that is turned
> on, therefore only doing 4g a tape. That sucks a bit. But I may have
> missed a comfig option someplace too.
>
> Cheers, Gene
I'm using bru rather than arkeis, but this may apply to you. I had
the same problem with a exabyte 8505 and bru didn't know how to
turn on compression. I did some digging and it turns out under linux
you have to use the mt command to set the tape density. The 8505
used the value 140 to turn on hardware compression. Think I found this
in their reference manual. Bru also provides a hook so you can call
a startup command before it starts the backup. I created a two line
script with the following lines:
mt -f /dev/nst0 rewind
mt -f /dev/nst0 setdensity 140
and now bru is using the fill 14Gigs on the tape.
Maybe arkeia has such a hook, or you can start arkeia up from
within a script that sets up the tape drive before arkeia starts.
John
--
===============================================================================
John C. Antrosiglio Bell Laboratories
(732)949-3840 101 Crawford Corner Road
[EMAIL PROTECTED] Holmdel, New Jersey 07733-3030
------------------------------
From: [EMAIL PROTECTED] (Carlos)
Subject: Re: CD-RW - IDE or SCSI?
Date: 2 Aug 2000 14:55:44 -0500
In article <[EMAIL PROTECTED]>,
Clifton T. Sharp Jr. <[EMAIL PROTECTED]> wrote:
>Phil Regier wrote:
>> Would it be worth the extra expense to go the SCSI route,
>> or would the IDE be sufficient?
>
>I bought IDE, not knowing any better, and it was a BIIIIIIIIIIIG mistake.
Why? It took me about 30' to figure out how to set the devices and
options in the kernel to use ide-scsi emulation for the CDRW, but after
that I've used the IDE CDRW for almost a year with no problem.
Carlos
------------------------------
From: Sean <[EMAIL PROTECTED]>
Subject: deleted partition table
Date: Wed, 2 Aug 2000 13:51:01 -0700
Hello,
First off, I know, you should always remove back-up media from your compu=
ter.
However, not being too bright, I managed to delete the partition table u=
sing
the linux fdisk on a 1G Jazz drive that had a single dos partition on it.=
No
changes have been made since.
Is there any way to recover the data on that disk? My computer dual boot=
s
win98 and Suse 6.4 so any utilities for either OS would be helpful.
Thanks in advance.
Sean
------------------------------
From: "Mark Langsdorf" <[EMAIL PROTECTED]>
Subject: Re: best distro for old machine
Date: Wed, 2 Aug 2000 15:18:44 -0500
"Guillaume" <[EMAIL PROTECTED]> wrote in message
news:8m9aqu$p8b$[EMAIL PROTECTED]...
> Hi,
> i have a 486 DX (33MHz) with 8Mo RAM 230Mo HD and two 3com 3c509b cards
in.
> I plane to configure it as a router (maybe firewalled), so i'm looking for
a
> the good linux (or BSD) distribution.
>
> I think the potential problem are:
> 3com 3c509b driver
> 203 Mo of HD
> my knowledge about linux is limited to Redhat like distribution...
>
> Does anyone have some advice?
Stay away from Caldera. It's great for new users on newer boxes,
but it's a pain to deal with for custom configurations.
I'd suggest RedHat or SuSE. SuSE gives you more stuff, but
configuration can be a bit more of a pain. Both of them should
work fine with your 3Com NIC.
-Mark Langsdorf
------------------------------
From: James Knowles <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Why is Athon 650 slower than P-II/400? !!!SOLVED!!!
Date: Wed, 02 Aug 2000 14:31:27 -0600
> > I still think the dual processor setup would be faster than a single
>
> Depends on what you're testing.
The only thing I dare generalize on is that an SMP system can handle a
heavy load from mupliple active processes better. For single-user
systems, there's generally no point.
--
People who reach their potential spend more time asking, "What am I
doing well?" rather than "What am I doing wrong?"
- John C. Maxewll
------------------------------
From: James Knowles <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Why is Athon 650 slower than P-II/400?
Date: Wed, 02 Aug 2000 14:32:36 -0600
> Since you were posting C sources, could you have posted it in a readable
> format?
Bugger! Upgrading the BIOS solved the problem, but just for giggles:
#include <stdio.h>
#include <stdlib.h>
#define MSIZE (96*1024*1024)
#define NITERS 16
int main(void)
{
int i,j;
char* c;
char* p;
c = (char*) malloc( MSIZE );
for( i=0; i<NITERS; i++ )
{
p = c;
for( j=0; j<MSIZE; j++ ) *p++ = 0;
}
free(c);
exit(0);
}
--
Do or do not, there is no try.
- Yoda
------------------------------
From: Florian Forster <[EMAIL PROTECTED]>
Subject: Re: OkiPage 4w plus
Date: Wed, 2 Aug 2000 22:30:58 +0200
Hi
>=20
> Well, IIRC there are a bunch of options for a2ps. Failing that, you
> can always make your own filter for any data type is doesn't do
> satisfactorily; there are plenty of filter programs out there. For
> images, look into imagemagick's "convert" or the netpbm suite (my
> personal favorite).
After about 3 weeks of trying I got it. As there's nothing in your databa=
se, I
mean no instruction, or in the Prinitg How-To I wanna write the Installat=
ion
guide.=20
Please contact me vie e-mail if you're interested.
I don't know how to publicate the article
Thx for your help
Flo
------------------------------
From: [EMAIL PROTECTED] (Vincent Fox)
Crossposted-To: comp.os.linux.setup
Subject: Re: Coppermine SLOW PERFORMANCE...
Date: 2 Aug 2000 20:32:05 GMT
In <[EMAIL PROTECTED]> EKK <[EMAIL PROTECTED]> writes:
>I HAVE SAID THIS BEFORE, BUT DIDN'T GET AS MUCH RESPONSE
>AS I THOUGH I WOULD.
SHOUTING IN ALL CAPS WON'T HELP.
>HAS ANYONE EXPERIENCED BELOW-EXPECTATIONS PERFORMANCE FROM
>COPPERMINE PENTIUM III CHIPS?
Could be, depends on whether the app will fit in the 256K cache.
Maybe you need a Xeon. Maybe you need a smarter compiler and/or
some hand-optimization of your code. Not enough data from you.
--
"Who needs horror movies when we have Microsoft"?
-- Christine Comaford, PC Week, 27/9/95
------------------------------
From: James Knowles <[EMAIL PROTECTED]>
Subject: Re: Athalon Motherboards/ Linux Support
Date: Wed, 02 Aug 2000 14:39:53 -0600
> 1. Does anyone have any experience with Athalon chips under Linux?
I've had a 650MHz Athlon for a few months now. I have a K7M motherboard.
UPGRADE THE BIOS. I just upgraded the BIOS and WOW! That bugger flys! I
tend to hit the machine really hard through VMWare. Zero problems and
great performance.
I'm pretty excited about this machine.
> 3. I don't do a lot of gamin, but I do have an 8 Meg ATI RAGE Pro card.
Don't know of any; everything that I've heard is that the ATI cards work
great; I use a RAGE card (don't remember which) but don't give much
weight to that answer!
> 4. What optimizations should be used when compiling applications?
My rule of thumb is: Try both and see what kind of performance you get.
--
We base all our experiments on the capacity of mankind for
self-government.
- James Madison
------------------------------
From: Johan Kullstam <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Coppermine SLOW PERFORMANCE...
Date: 02 Aug 2000 16:27:13 -0400
EKK <[EMAIL PROTECTED]> writes:
> OK,
>
> I HAVE SAID THIS BEFORE, BUT DIDN'T GET AS MUCH RESPONSE
> AS I THOUGH I WOULD.
>
> HAS ANYONE EXPERIENCED BELOW-EXPECTATIONS PERFORMANCE FROM
> COPPERMINE PENTIUM III CHIPS?
> MY NEW PIII850, PIII650 PERFORM ONLY MARGINALLY BETTER THAN
> MY OLD PII450.
ok. what's marginally in numbers?
> CACHE!!!!
>
> IS THIS OR IS THIS NOT AN ISSUE?
perhaps.
> SUPPOSEDLY THE NEW 256KB ON-DIE CACHE IS MORE EFFICIENT, BUT
> PERHAPS ONLY FOR MUNDANE WINDOWS TASKS. IF I AM RUNNING A
> MEMORY-INTENSIVE LARGE PROBLEM THAT IS MOSTLY FLOATING POINT
> OPERATIONS, AM I BETTER OFF WITH THE LARGER CACHE.
> IT SEEMS TO BE THE CASE WITH OTHER PROCESSORS, LIKE MIPS OR
> ALPHA. FOR EXAMPLE THE ALPHA 667MHZ (DP264) HAS A FAT 4MB
> CACHE AND IT IS TWICE AS FAST AS A PIII500(512KB CACHE).
> ALSO, THE MIPS PROCESSORS FREQUENCY IS BELOW PENTIUM FREQ.
> BUT THE LARGER CACHE USUALLY SEEMS TO MAKE UP IN OVERALL
> SPEED.
it's not just the cache, but a mips or alpha have many more registers
than a pentium. while the pentium shuffles its registers around and
spills all over the place, the risc type cpus with many registers keep
on cranking. the ia32 arch just plain sucks.
alpha creams the pentium and athlon but unfortunately it costs so much
more.
btw the amd athlon and especially the athlon thunderbird beat intels
pentia in floating point at the same clock frequency. factor in the
lower cost of the athlon compared to a pentium of similar frequency.
the athlon has a huge floating point performance over price advatange
versus the pentium.
> NOW. I KNOW THE ALPHA IS THE FASTEST OUT THERE AND I AM
> VERY HAPPY WITH IT, BUT I THOUGHT THAT A PIII850 WOULD AT
> LEAST BE 1.5 TIMES FASTER THAN A PII450.
> WHAT IS GOING ON?????
is your memory 1.5 times faster?
is your front side bus 1.5 times faster?
is your hard disk 1.5 times faster?
what is your mobo chipset? BX chipsets are very efficient. i820 with
MTH is horrible. rambus may or may not be a bust compared to sdram.
find your bottleneck. what is your application like? does it process
large randomly accessed arrays or does it crunch on small data sets?
are you use a lot of disk action?
while cpu speeds have been growing by leaps and bounds, the rest of
the system hasn't been growing nearly as fast. if you are ram bound
and have pc100 sdram everywhere, you won't see any increase.
what benchmarks have you run? are they consistent with what you'd
expect? are these benchmarks consistent with your application
results?
> SHOULD I JUST RETURN THESE NEW PROCESSORS AND HUNT FOR AN
> EXTINCT PIII600MHZ WITH THE OLD-STYLE 512KB CACHE????????
that might make sense. it may also be futile.
> PERPLEXED,
--
J o h a n K u l l s t a m
[[EMAIL PROTECTED]]
sysengr
------------------------------
From: Andreas Berglund <[EMAIL PROTECTED]>
Subject: Modem "Best 2400 L", winmodem or not?
Date: Wed, 02 Aug 2000 20:53:32 GMT
Hi!
Does anyone know if "Best 2400 L" is a winmodem or not?
If it is not, does anyone know of an on-line manual for such a beast?
regards
Andreas Berglund
--
.~.
/V\
// \\
/( )\
^^-^^
------------------------------
From: alexisc <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux
Subject: REQ printers
Date: Wed, 02 Aug 2000 21:51:41 +0000
Hello yet again folks,
Beein a beein of little funds, I have the printer that came free with my
'puter, an epson stylus color 300, and a canon bjc 1000 that I got
(before linux) so I wouldn't be stuck with those stupid colour plus
black in one cartridges for the epson, as I print mainly text. (BTW the
canon will take BC02 cartridges even though canon don't tell you that).
Now, I tell linux (RH6) that the printer is an epson color UP, cos the
300 isn't listed, and it either prints rubbish or not at all. The
epsonUtils program that checks the printer and runs tests on it works
fine, I can't get any output from the canon. Canon say there are no
plans for a linux driver for the bjc 1000.
Has anybody had any luck getting either of these printers to work under
linux? If so I would dearly like to hear from you!
Alexis
------------------------------
From: EKK <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Coppermine SLOW PERFORMANCE...
Date: Wed, 02 Aug 2000 07:42:22 -0700
Vincent Fox wrote:
>
> In <[EMAIL PROTECTED]> EKK <[EMAIL PROTECTED]> writes:
>
> >I HAVE SAID THIS BEFORE, BUT DIDN'T GET AS MUCH RESPONSE
> >AS I THOUGH I WOULD.
>
> SHOUTING IN ALL CAPS WON'T HELP.
>
> >HAS ANYONE EXPERIENCED BELOW-EXPECTATIONS PERFORMANCE FROM
> >COPPERMINE PENTIUM III CHIPS?
>
> Could be, depends on whether the app will fit in the 256K cache.
> Maybe you need a Xeon. Maybe you need a smarter compiler and/or
> some hand-optimization of your code. Not enough data from you.
>
> --
> "Who needs horror movies when we have Microsoft"?
> -- Christine Comaford, PC Week, 27/9/95
The app. definitely won't fit on the entire cache.
The app. takes up about 205MB RAM. Right?
It is finite element analysis code, so a large matrix and lots
of integration-type FLOATING POINT operations being performed.
>while cpu speeds have been growing by leaps and bounds, the rest of
>the system hasn't been growing nearly as fast. if you are ram bound
>and have pc100 sdram everywhere, you won't see any increase.
PC100 sdram is slowing EVERYTHING down??
I don't know about that. Similar systems (i.e. same mboard, memory,
hard drive) compare pretty linearly in performance increase, amongst
PIIs and 512KB-cache-PIIIs at least. So I have seen a linear increase
in performance when going from PPro200 to PII350 to PII450, but not
once I get into the PIIICoppermines.
AG
--
Alessandro Giachino, Software Engineer
EKK Inc.
2065 West Maple C309 tel. 248-624-9957
Walled Lake MI 48390 fax. 248-624-7158
_____________________________________________
http://www.ekkinc.com
------------------------------
From: Johan Kullstam <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Why is Athon 650 slower than P-II/400? !!!SOLVED!!!
Date: 02 Aug 2000 16:47:22 -0400
James Knowles <[EMAIL PROTECTED]> writes:
> > > I still think the dual processor setup would be faster than a single
> >
> > Depends on what you're testing.
>
> The only thing I dare generalize on is that an SMP system can handle a
> heavy load from mupliple active processes better. For single-user
> systems, there's generally no point.
it depends on the user. i run a lot of simulations and it is nice to
light up both cpus.
--
J o h a n K u l l s t a m
[[EMAIL PROTECTED]]
sysengr
------------------------------
From: "Aleksandar Antok" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,alt.linux,comp.os.linux
Subject: Can Redhat 6.2 run on Umsdos filesystems(FAT32)?Answer to my E-mail PLEASE.
Date: Tue, 1 Aug 2000 21:17:25 +0200
Can Redhat 6.2 run on Umsdos filesystems(FAT32)?
My hard-drive crashed when I maked Ext2 partition, so this time I want to go
much easier way by installing Redhat 6.2 on FAT32 partition.
Please answer to [EMAIL PROTECTED], not to newsgroup.
Thank You.
------------------------------
Subject: Re: CD-RW - IDE or SCSI?
From: [EMAIL PROTECTED]
Date: Wed, 02 Aug 2000 21:23:03 GMT
[EMAIL PROTECTED] (Carlos) writes:
> Why? It took me about 30' to figure out how to set the devices and
> options in the kernel to use ide-scsi emulation for the CDRW, but after
> that I've used the IDE CDRW for almost a year with no problem.
How much other stuff can you do while burning a CD?
--
Eric McCoy ([EMAIL PROTECTED])
"corsair, n. A politician of the seas."
- Ambrose Bierce, The Devil's Dictionary
------------------------------
From: [EMAIL PROTECTED] (Dances With Crows)
Subject: Re: deleted partition table
Date: 2 Aug 2000 21:24:47 GMT
Reply-To: [EMAIL PROTECTED]
On Wed, 2 Aug 2000 13:51:01 -0700, Sean wrote:
>First off, I know, you should always remove back-up media from your computer.
>However, not being too bright, I managed to delete the partition table using
>the linux fdisk on a 1G Jazz drive that had a single dos partition on it. No
>changes have been made since.
>Is there any way to recover the data on that disk? My computer dual boots
>win98 and Suse 6.4 so any utilities for either OS would be helpful.
If it had a single DOS partition that covered the entire disk, it'll be
extremely easy to fix. "fdisk /dev/sdX" where X is the spot the JAZ
drive lives on, and create a single partition of type FAT16 that covers
the entire disk. I don't recall offhand if Jaz disks are supposed to
have all their data on partition 1 or partition 4, so just go with
whatever you normally mount the Jaz disk under in Linux.
There's also a utility called "fixpart" available on
http://freshmeat.net/ that might help you out.
--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / Tyranny is always better organized
http://www.brainbench.com / than freedom.
=============================/ ==Charles Peguy
------------------------------
From: "Lalo" <[EMAIL PROTECTED]>
Subject: intel 740 AGP
Date: Wed, 02 Aug 2000 21:25:28 GMT
Does anyone have any linux driver info for Intel 740 AGP
thanks!
Lalo
[EMAIL PROTECTED]
------------------------------
Subject: Re: deleted partition table
From: [EMAIL PROTECTED]
Date: Wed, 02 Aug 2000 21:28:49 GMT
Your margins are incorrect, and your reader seems to be insering `='
instead of newlines. I have not bothered to fix this below.
Sean <[EMAIL PROTECTED]> writes:
> However, not being too bright, I managed to delete the partition
> table u= sing the linux fdisk on a 1G Jazz drive that had a single
> dos partition on it.= No changes have been made since.
> Is there any way to recover the data on that disk? My computer dual
> boot= s win98 and Suse 6.4 so any utilities for either OS would be
> helpful.
If you recreate the partition table with the exact same parameters it
had previously, it will be as if nothing ever happened. The best way
to do this is to recreate the partition using the tool you did before,
as DOS and Linux fdisk have different ideas about where partitions
should begin and end.
Note, however, that both Linux and Windows will happily, and without
warnings of any kind, mount FAT partitions that extend past the end of
the physical disk, and certainly past the end of the partition size as
specified in the boot record. You _must not_ write to the partition
until you are _certain_ that you have the table right.
--
Eric McCoy ([EMAIL PROTECTED])
"And what happens? The guy goes and proves himself beyond all doubt
to be just another cookie stamped out of the Dough of Idiocy with the
Cookie-Cutter of Self-Righteousness." - Mike Kozlowski
------------------------------
From: [EMAIL PROTECTED] (Vincent Fox)
Crossposted-To: comp.os.linux.setup
Subject: Re: Coppermine SLOW PERFORMANCE...
Date: 2 Aug 2000 21:33:34 GMT
In <[EMAIL PROTECTED]> EKK <[EMAIL PROTECTED]> writes:
>> Could be, depends on whether the app will fit in the 256K cache.
>> Maybe you need a Xeon. Maybe you need a smarter compiler and/or
>> some hand-optimization of your code. Not enough data from you.
*snip*
>The app. definitely won't fit on the entire cache.
>The app. takes up about 205MB RAM. Right?
>It is finite element analysis code, so a large matrix and lots
>of integration-type FLOATING POINT operations being performed.
Let me explain. Most programs spend a lot of time in a small
amount of actual code. It doesn't matter how much data space
in total you are talking about, most programs can use a 256kb
or 512kb cache and run very well. You miss sometimes and then
you do some cache loading. But overall, cache is a win.
Ideally you would have cache = RAM. 2 problems though:
1) Too deuced expensive and complex to have giganto cache
2) Usually not neccessary. Let me give an example.
I had some CFD (Computational Fluid Dynamics) code that I ran on
a Celeron 366 overclocked to 550. It ran about 8% faster on a
Xeon 550 system but consider the cost diff this hardly seemed
a worthwhile improvement.
>>while cpu speeds have been growing by leaps and bounds, the rest of
>>the system hasn't been growing nearly as fast. if you are ram bound
>>and have pc100 sdram everywhere, you won't see any increase.
>PC100 sdram is slowing EVERYTHING down??
>I don't know about that. Similar systems (i.e. same mboard, memory,
>hard drive) compare pretty linearly in performance increase, amongst
>PIIs and 512KB-cache-PIIIs at least. So I have seen a linear increase
>in performance when going from PPro200 to PII350 to PII450, but not
>once I get into the PIIICoppermines.
You misunderstand. We don't know what is going on with your systems.
You don't give enough details about your hardware or your applications.
Lacking that, many will tend to assume this a system configuration issue.
It might be, it might not.
In my experience a PIII 650 at 866 really is about twice as
fast on for example a large Matlab run than my previous PII-450.
Same results when making big runs of Fluent, a commercial CFD
application. So I'd say the CPU can deliver in terms of running large
matrix calculations using fat apps like Matlab. What is up with your
particular situation no one can say without close scrutiny.
The CPU would be my last suspect.
--
"Who needs horror movies when we have Microsoft"?
-- Christine Comaford, PC Week, 27/9/95
------------------------------
From: [EMAIL PROTECTED] (David C.)
Crossposted-To: comp.os.linux.setup
Subject: Re: Why is Athon 650 slower than P-II/400?
Date: 02 Aug 2000 17:40:17 -0400
James Knowles <[EMAIL PROTECTED]> writes:
>>
>> Since you were posting C sources, could you have posted it in a readable
>> format?
>
> Bugger! Upgrading the BIOS solved the problem, but just for giggles:
>
> #include <stdio.h>
> #include <stdlib.h>
>
> #define MSIZE (96*1024*1024)
> #define NITERS 16
>
> int main(void)
> {
> int i,j;
> char* c;
> char* p;
>
> c = (char*) malloc( MSIZE );
>
> for( i=0; i<NITERS; i++ )
> {
> p = c;
> for( j=0; j<MSIZE; j++ ) *p++ = 0;
> }
>
> free(c);
>
> exit(0);
> }
Thanks.
-- david
------------------------------
From: Kent Perrier <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Coppermine SLOW PERFORMANCE...
Date: 02 Aug 2000 16:34:28 -0500
EKK <[EMAIL PROTECTED]> writes:
> OK,
>
> I HAVE SAID THIS BEFORE, BUT DIDN'T GET AS MUCH RESPONSE
> AS I THOUGH I WOULD.
<SNIP>
Now my ears hurt :)
Kent
--
They were killing machines. I wanted to be them so bad.
-- Jamie Zawinski
http://www.jwz.org/gruntle/grave.html
------------------------------
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