Date: Wed, 8 May 1996 18:55:18 +0300 (EET DST) From: Sergey Stepanenko <sns@viaduk.net> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: questions@freebsd.org Subject: Re: 3Com Slow Performance Message-ID: <Pine.BSF.3.91.960508184742.2121B-100000@resolver.viaduk.net> In-Reply-To: <199605080629.PAA27407@genesis.atrad.adelaide.edu.au>
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On Wed, 8 May 1996, Michael Smith wrote:
> Date: Wed, 8 May 1996 15:59:53 +0930 (CST)
> From: Michael Smith <msmith@atrad.adelaide.edu.au>
> To: Sergey Stepanenko <sns@viaduk.net>
> Subject: Re: 3Com Slow Performance
>
> Sergey Stepanenko stands accused of saying:
> > >
> > > Seeing as the remainder of your configuration and the output of
> > > 'netstat -i' appear to be national secrets, we're no closer to helping
> > > you with a solution. 8(
> > sorry... here goes config and netstat -i
>
> It's a start. Comments below. Now how about what you're connecting
> _to_ ??
see below.
>
> > FreeBSD 2.2-960501-SNAP #0: Tue May 7 13:59:03 EET DST 1996
> > sns@dagobar.viaduk.net:/usr/src/sys/compile/DAGOBAR
> > Calibrating clock(s) relative to mc146818A clock ... failed, using default i8254 clock of 1193182 Hz
>
> This is bad. Bruce; does this tell us much/anything?
>
> > CLK_USE_I8254_CALIBRATION not specified - using default frequency
> > i586 clock: 0 Hz
> > CPU: Pentium (90.96-MHz 586-class CPU)
> > Origin = "GenuineIntel" Id = 0x525 Stepping=5
> > Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
> ...
> > vx0 <3Com 3c595 Fast EtherLink III PCI> rev 0 int a irq 10 on pci0:4
> > utp[*UTP*] address 00:a0:24:78:34:21
> > Warning! Defective early revision adapter!
>
> This is an Unhappy Message. I'm not sure whether the problems it refers
> to have been dealt with, or whether this may be a problem.
Well, it's SNAP 960501, latest current say nothing like this, instead it
says "failed to read eeprom" or something like that.
>
> > uid 8 on /var: file system full
>
> That's not too good either 8)
>
> > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
> > vx0 1500 <Link> 00.a0.24.78.34.21 507867 0 359669 2 1
> > vx0 1500 194.44.78/25 dagobar 507867 0 359669 2 1
>
> Ok, no transmit errors. What does the receiving side look like?
all network is "hubbed" by 3Com FMS II 24 Port hub with management module.
from its statistics there's nothing wrong with cabling/framing or anything.
port for this nic looks just fine.
it was slow since 2.1 stable and EISA 3Com 579 Ethernet.
and performance was always slow with these 2 nics - no more than 120k/sec.
sometimes as low as 30k.
also : this particular computer - neptune pci chipset with one 100Mhz
pentium (of two possible) with APIC disabled, EISA/PCI with award bios.
i'd say we've achieved up to 860k/sec on dos computers with ipx using
strictly 3com.
on the other hand another computer (tritonet pentium 90mhz with 3Com 509
series - ISA) works just fine.
WB
. .
Sergey Stepanenko - System/Network Administrator
Technical Director - Viaduk-Telecom, Inc
10 Sagaidachnogo St., 254070 Kiev, Ukraine
tel. +38 (044) 4168267 tel./fax +38 (044) 4625090
hostmaster@viaduk.net - sns@viaduk.net
. .
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