Re: Network performance in a dual CPU system

2006-02-15 Thread Andre Oppermann
Luigi Rizzo wrote: > > On Wed, Feb 15, 2006 at 09:20:05PM +0100, Andre Oppermann wrote: > ... > > >From my profiling with the Agilent tester there seem to be two areas where > > the packet filters (ipfw in my test case) burn a lot of CPU per packet. > > That is a) setup of lots of packet variables

Re: Network performance in a dual CPU system

2006-02-15 Thread Luigi Rizzo
On Wed, Feb 15, 2006 at 09:20:05PM +0100, Andre Oppermann wrote: ... > >From my profiling with the Agilent tester there seem to be two areas where > the packet filters (ipfw in my test case) burn a lot of CPU per packet. > That is a) setup of lots of packet variables unconditionally at the entry >

Re: [FIX] dummynet breaks IP reassembly

2006-02-15 Thread Andre Oppermann
Ruslan Ermilov wrote: > > Hi Andre, > > If I'm not mistaken, *you* converted ipfw to use pfil(9). > During the conversion, the following bug was introduced. > > When forwarding fragmented packets through a dummynet pipe > (ip_input -> ip_forward -> ip_output -> pipe -> ip_output) > the last ip_o

Re: Network performance in a dual CPU system

2006-02-15 Thread Andre Oppermann
Max Laier wrote: > > On Friday 10 February 2006 20:54, Julian Elischer wrote: > > Marcos Bedinelli wrote: > > > Hello all, > > > > > > thanks for the replies. Most of you have suggested that I turn on > > > polling and give it a try. The machine is in production, hence I need > > > to schedule dow

Re: TCP Performance advice needed [long!]

2006-02-15 Thread Andre Oppermann
Ivan Voras wrote: > > Ragnar Lonn wrote: > > I don't know what tcp.inflight does but I know that this type of > > application > > protocol, that expects a reply before sending the next piece of data, will > > always be completely dependent upon roundtrip times for its throughput - > > the roundtri

Re: NFS file locking problem, rpc.lockd seems to be leaking ports?

2006-02-15 Thread Kris Kennaway
On Wed, Feb 15, 2006 at 10:15:03AM +0100, Palle Girgensohn wrote: > I have lived with this, planning an upgrade of the server to freebsd-6, > hoping it will fix it, but now I've upgraded one of the workstations to > freebsd-6, and nfs file locking does not work at all for this client. I Talk t

Re: bsnmpd (was: 64-bit SNMP counters for FreeBSD && graphing bandwidth usage)

2006-02-15 Thread Harti Brandt
On Wed, 15 Feb 2006, Gleb Smirnoff wrote: GS>On Tue, Feb 14, 2006 at 11:58:21AM +0100, Anders Nordby wrote: GS>A> Some things popping off my mind: GS> GS>- A SMUX interface, allowing a process to provide a MIB branch GS> available via bsnmpd. May be in future I will have time to GS> make a SNMP

Re: bsnmpd (was: 64-bit SNMP counters for FreeBSD && graphing bandwidth usage)

2006-02-15 Thread Gleb Smirnoff
On Tue, Feb 14, 2006 at 11:58:21AM +0100, Anders Nordby wrote: A> Some things popping off my mind: - A SMUX interface, allowing a process to provide a MIB branch available via bsnmpd. May be in future I will have time to make a SNMP branch in mpd, that will allow to manage a PPP access conce

NFS file locking problem, rpc.lockd seems to be leaking ports?

2006-02-15 Thread Palle Girgensohn
Hi! I'm having a problem with rpc.lockd Clients are mainly FreeBSD 5.4-stable, server is FreeBSD-4.11-RELEASE-p13. /home is nfs mounted via amd. rpc.statd and rpc.lockd is on for both clients and server Since we started using eclipse (which requires file locking to operate) we get problems w

Re: TCP Performance advice needed [long!]

2006-02-15 Thread Ragnar Lonn
Ivan Voras wrote: I understand this bottleneck, and know (at least in theory :) ) how it could be solved, but my problems are not directly related to that: - For small (but consistent in size) packet sizes, I get randomly varying round-trip times, and much lower packets-per-second ratio then