So how about any irq conflicts? tried netcat from this machine to another
and vice versa? duplexing/cabling problems?
----- Original Message -----
From: "Sally Janghos" <[EMAIL PROTECTED]>
To: "Aaron Seelye" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Friday, March 23, 2007 11:14 AM
Subject: Re: Where to troubleshoot Intel PRO/1000 performance problems?
Aaron,
Thanks for your reply. Here is some output from some dd's on the disk
that I'm reading/writing to.
dd if=/dev/zero of=testfile count=1000000;dd if=testfile of=/dev/null
1000000+0 records in
1000000+0 records out
512000000 bytes transferred in 27.951769 secs (18317267 bytes/sec)
1000000+0 records in
1000000+0 records out
512000000 bytes transferred in 16.864945 secs (30358830 bytes/sec)
dd if=/dev/zero of=testfile count=1000000 ; dd if=testfile of=/dev/null
1000000+0 records in
1000000+0 records out
512000000 bytes transferred in 28.492921 secs (17969376 bytes/sec)
1000000+0 records in
1000000+0 records out
512000000 bytes transferred in 16.605797 secs (30832607 bytes/sec)
Am I reading right, the max network transfer rate from this disk will be
between 143Mbit and 246Mbit/sec? Is there a way to determine if there is
an IRQ conflict? How do you find out what IRQ's are currently used by the
system?
Sally
Thu, Mar 22, 2007 at 04:31:16PM -0700, Aaron Seelye wrote:
If it's platform agnostic, I'd start looking for IRQ conflicts. It would
seems that your test all involve disk io, check that first and narrow
down
that it's a network or disk problem. You may have a bum raid card, irq
conflict on the network card, any number of things.
-Aaron
----- Original Message -----
From: "Sally Janghos" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, March 22, 2007 10:16 AM
Subject: Where to troubleshoot Intel PRO/1000 performance problems?
>I'm looking for some suggestions on where to start troubleshooting
>performance issues on a Intel PRO 1000 card.
>
>It's installed in a box with the following configuration:
>FreeBSD 6.1
>AMD Athlon(tm) XP 2100+ (1741.42-MHz 686-class CPU)
>Dell CERC SATA RAID 2
>
>The file transfer(ftp/smb/scp) speeds from/to this machine do not appear
>to go above 10Mb. The other machine
>doing the transfers has similar specs(same Ethernet Card) but is a
>Windows
>XP box. I've tried replacing the switch with
>a crossover cable between the machines and the same speed persists. Any
>suggestions on where to start and what tools
>should I use to do the benchmarks?
>
>Thanks,
> Sally
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