Re: Network performance 6.0 with netperf

2005-10-20 Thread Michael VInce
On Thu, Oct 20, 2005 at 04:26:31PM +0200, Brad Knowles wrote: At 10:49 PM +1000 2005-10-20, Michael VInce wrote: > The 4 ethernet ports on the Dell server are all built-in so I am assuming > they are on the best bus available. In my experience, the terms "Dell" and "best ava

Re: Network performance 6.0 with netperf

2005-10-20 Thread Robert Watson
On Thu, 20 Oct 2005, Michael VInce wrote: Are you by any chance using PCI NIC's? PCI Bus is limited to somewhere around 1 Gbit/s. So if you consider; Theoretical maxium = ( 1Gbps - pci_overhead ) The 4 ethernet ports on the Dell server are all built-in so I am assuming they are on the best

Re: Network performance 6.0 with netperf

2005-10-20 Thread Joao Barros
Hi, I work at an ISP with some 250 Dell machines. We started with Silver support on non critical machines and Gold support on the critical ones. When someone at Gold says: "Sorry, can't find your tag number..." We had several official apologies from Dell and upgraded all the machines to Platinum

Re: Network performance 6.0 with netperf

2005-10-20 Thread Brad Knowles
At 9:57 AM -0500 2005-10-20, Karl Denninger wrote: Other than that, I've been pretty happy with their stuff. Sure beats a lot of other "PC" vendors out there in terms of reliability, heat management, BIOS updates, etc. Have you tried Rackable or IronSystems? I've heard that they've been

Re: Network performance 6.0 with netperf

2005-10-20 Thread Karl Denninger
I think that's unfair. I have a couple of Dell machines and my biggest complaint with them has been their use of proprietary bolt patterns for their motherboards and similar tomfoolery, preventing you from migrating their hardware as your needs grow. This also guarantees that your $75 power suppl

Re: Network performance 6.0 with netperf

2005-10-20 Thread Brad Knowles
At 10:49 PM +1000 2005-10-20, Michael VInce wrote: The 4 ethernet ports on the Dell server are all built-in so I am assuming they are on the best bus available. In my experience, the terms "Dell" and "best available" very rarely go together. Dell has made a name for themselves by shippi

Re: Network performance 6.0 with netperf

2005-10-20 Thread Michael VInce
Sten Daniel Sørsdal wrote: Michael VInce wrote: I reinstalled the netperf to make sure its the latest. I have also decided to upgrade Server-C (the i386 5.4 box) to 6.0RC1 and noticed it gave a large improvement of network performance with a SMP kernel. As with the network setup ( A --- B

Re: Network performance 6.0 with netperf

2005-10-20 Thread Robert Watson
On Thu, 20 Oct 2005, Michael VInce wrote: Interestingly when testing from the gateway it self (B) direct to server (C) having 'net.isr.direct=1' slowed down performance to 583mbits/sec net.isr.direct works to improve performance in many cases because it (a) reduces latency, and (b) reduces C

Re: Network performance 6.0 with netperf

2005-10-20 Thread Michael VInce
Here is my probably final round of tests that I thought could possible be useful to others. I have enabled polling on the interfaces and discovered some of the master secret holy grail sysctls that really make this stuff work. I now get over 900mbits/sec router performance with polling. Havin

Re: Network performance 6.0 with netperf

2005-10-20 Thread Michael VInce
Here is my probably final round of tests that I thought could possible be useful to others. I have enabled polling on the interfaces and discovered some of the master secret holy grail sysctls that really make this stuff work. I now get over 900mbits/sec router performance with polling. Havin

Re: Network performance 6.0 with netperf

2005-10-19 Thread Sten Daniel Sørsdal
Michael VInce wrote: > I reinstalled the netperf to make sure its the latest. > > I have also decided to upgrade Server-C (the i386 5.4 box) to 6.0RC1 and > noticed it gave a large improvement of network performance with a SMP > kernel. > > As with the network setup ( A --- B --- C ) with serve

Re: Network performance 6.0 with netperf

2005-10-19 Thread Michael VInce
Robert Watson wrote: On Fri, 14 Oct 2005, Michael VInce wrote: I been doing some network benchmarking using netperf and just simple 'fetch' on a new network setup to make sure I am getting the most out of the router and servers, I thought I would post some results in case some one can help

Re: Network performance 6.0 with netperf

2005-10-14 Thread Robert Watson
On Fri, 14 Oct 2005, Michael VInce wrote: I been doing some network benchmarking using netperf and just simple 'fetch' on a new network setup to make sure I am getting the most out of the router and servers, I thought I would post some results in case some one can help me with my problems or

Network performance 6.0 with netperf

2005-10-14 Thread Michael VInce
Hey all, I been doing some network benchmarking using netperf and just simple 'fetch' on a new network setup to make sure I am getting the most out of the router and servers, I thought I would post some results in case some one can help me with my problems or if others are just interested to