Date: Thu, 10 Aug 95 23:53 CDT From: steve@simon.chi.il.us (Steven E. Piette) To: bugs@freebsd.org, mrcpu@cdsnet.net Subject: Re: Incredibly slow performance of 3c509 under 2.1.0-SNAP Message-ID: <m0sgm64-000NAvC@simon.chi.il.us>
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> From freefall.FreeBSD.org!owner-freebsd-bugs Thu Aug 10 23:18:48 1995
> Sender: freefall.FreeBSD.org!owner-freebsd-bugs
> Date: Thu, 10 Aug 1995 13:53:39 -0700 (PDT)
> From: Jaye Mathisen <mrcpu@cdsnet.net>
> To: bugs@freebsd.org
> Subject: Incredibly slow performance of 3c509 under 2.1.0-SNAP
>
>
> Argh, this is a step in the wrong direction...
>
> Thanks to Justin I got my geometry problems squared away. Software
> re-installed fine, but the ethernet card on a good day with a tailwind is
> getting maybe a kilobyte or so per second.
>
>
> vmstat -i and vmstat don't show any unusual activity, and adjacent boxes
> running BSD/OS and the same cards/hardware zip along like crazy.
>
> It's especially noticeable when editing, as even with vi, it only draws
> about half the screen at a time, then a pause, then a draw, then a pause.
>
> I just finished ftp'ing a 600kilobyte file, and it took 400 seconds at a
> grand total of 1.5Kbps.
>
> The transfer is extremely slow in both directions, both gets and puts.
>
> This would explain why it took something like 12 hours to install via
> FTP, I thought it was wcarchive, but it doesn't look like it.
>
> Let's see, fresh SNAP install, on a P5-90/PCI (triton), 3c509, I think
> a Cirrus PCI video, and a 2940 SCSI, with 4 Conner drives on it.
>
> I have run BSD/OS on this config, modulo a BusLogic rather than Adaptec,
> and it hauls butt.
>
> (I should also mention that modulo networking, everything from the
> console screams).
>
> #dmesg output:
> FreeBSD 2.1.0-950726-SNAP #0: Thu Aug 10 11:53:38 PDT 1995
> 1 3C5x9 board(s) on ISA found at 0x300
> ep0 at 0x300-0x30f irq 10 on isa
> ep0: aui/utp[*UTP*] address 00:20:af:a1:56:9c irq 10
^^^^^^
> Probing for devices on the pci0 bus:
> configuration mode 1 allows 32 devices.
> chip0 <CPU-PCI bridge> rev 1 on pci0:0
> chip1 <PCI-ISA bridge> rev 2 on pci0:7
> vga0 <VGA-compatible display device> rev 72 int a irq 10 on pci0:8
^^^^^
> ahc0 <Adaptec 2940 SCSI host adapter> rev 0 int a irq 11 on pci0:11
>
>
> Any ideas desparately appreciated, I don't want to go back.
>
IRQ problems maybe?
Steve
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