Cap on network speed in CURRENT?
luked at pobox.com
Tue Jun 1 19:46:18 PDT 2004
>> This is indeed a very slow host, by modern standards. It's a fussy old
>> Pentium 166MHz that I've put through hell for the last eight years or
>> I'm building a kernel with witness and invariants turned off. Building
>> a kernel usually takes overnight. I'll try it out tomorrow and see how
>> it goes. If those testing programs don't require X, I'll see about
>> installing one of them to help me figure out what's going on. The iperf
>> site looks like it's got some helpful information that I should read
> Also, try disabling SMP and possibly APIC support if it's a UP box.
> There's a measurable performance overhead to compiling with SMP support,
> since mutexes have to be compiled with locked instructions.
This is a dual processor box, but I gave up and took SMP and APIC out of
the kernel back in mid-April because the system would always panic on
startup if I had both multiprocessor support and a RAID array defined at
the same time.
I made a thread about it on freebsd-questions but got no responses, so in
complete bafflement I just turned off the multiprocessor support and
rebuilt everything. The RAID was more important to me.
I wouldn't be a bit surprised if that's a hardware problem. This old
motherboard has a lot of quirks and I think it's probably going to die the
next time I open the case.
Thanks for the tip though. I wouldn't have thought of that.
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