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> > > 26,000KP/s is typical performance result with LVS
> > > when PCI is 33MHz. With 66MHz PCI you can achieve far more.
> >
> > Does the scipt show_traffic.sh measure speed in packet/sec or Kpacket/sec?
> > (It writes out packets/sec.)
>
> Packets, yes. Assume the above is 26KP/s
In this case I still do not understand how can the PCI bus be so
limitative?
I have 32 bit/33 MHz PCI bus on the X330 IBM server. As a rough
calculation, the speed of the PCI bus is 32000000 1/s * 32 bit = 976
Mbit/s. (I know that it is not the case for real loads, it is just a
really rough estimation!)
Let me calculate with 26000 packet/s on the director, 40 byte TCP packets,
it yields 26000 packet/s * 320 bits/packet=8 Mbit/s. 1/100th of the PCI
bus speed.
If I bombard one of the realservers with testlvs (1000 sources, 10**7
packets), I get 256859 packets/sec on the RS, that yields 77 Mbit/s, that
seems much more realistic to me on a 100 Mb/s NIC.
I'm still confused. :-(
Thank you,
Peter Stefan
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