Re: TCP Reassembly Issues

2011-11-24 Thread kerbzo
Hi, I 'm experiencing a similar issue but I don't know if mine could be considered normal behaviour: even if net.inet.tcp.reass.curesegments is set to 1680 and does not icrease, the output of vmstat -z shows a high tcpreass fail value that I don't remember in previous (8-STABLE) builds: ITEM

Re: TCP Reassembly Issues

2011-11-24 Thread Ivan Voras
On 24.11.2011. 8:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD 9.0-RC2 r227852 where the net.inet.tcp.reass.curesegments value is constantly increasing (and not descreasing when there is nominal traffic with the box). It is causing tcp slowdowns as described

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 10:33 AM, Ivan Voras ivo...@freebsd.org wrote: On 24.11.2011. 8:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD 9.0-RC2 r227852 where the net.inet.tcp.reass.curesegments value is constantly increasing (and not descreasing when there

Re: TCP Reassembly Issues

2011-11-24 Thread Raul
El 24/11/2011 17:07, kerbzo escribió: I 'm experiencing a similar issue but I don't know if mine could be considered normal behaviour: even if net.inet.tcp.reass.curesegments is set to 1680 and does not icrease, the output of vmstat -z shows a high tcpreass fail value that I don't remember in

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 1:20 PM, Raul r...@turing.b2n.org wrote: El 24/11/2011 17:07, kerbzo escribió: I 'm experiencing a similar issue but I don't know if mine could be considered normal behaviour: even if net.inet.tcp.reass.curesegments is set to 1680 and does not icrease, the output of

Re: TCP Reassembly Issues

2011-11-24 Thread Stefan Bethke
Am 24.11.2011 um 21:30 schrieb Kris Bauer: On Thu, Nov 24, 2011 at 1:20 PM, Raul r...@turing.b2n.org wrote: I am seeing the same sorts of things in netstat vmstat: # netstat -s -p tcp |grep mem 742935 discarded due to memory problems # vmstat -z |grep tcpreass tcpreass: 40, 16464,

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 4:06 PM, Stefan Bethke s...@lassitu.de wrote: Am 24.11.2011 um 21:30 schrieb Kris Bauer: On Thu, Nov 24, 2011 at 1:20 PM, Raul r...@turing.b2n.org wrote: I am seeing the same sorts of things in netstat vmstat: # netstat -s -p tcp |grep mem 742935 discarded

Re: TCP Reassembly Issues

2011-11-24 Thread Adrian Chadd
Have you tried disabling the tcp offload features of your NIC? Adrian ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 5:35 PM, Adrian Chadd adr...@freebsd.org wrote: Have you tried disabling the tcp offload features of your NIC? Adrian ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To

Re: TCP Reassembly Issues

2011-11-24 Thread Jeremy Chadwick
On Thu, Nov 24, 2011 at 07:13:39PM -0600, Kris Bauer wrote: On Thu, Nov 24, 2011 at 5:35 PM, Adrian Chadd adr...@freebsd.org wrote: Have you tried disabling the tcp offload features of your NIC? Adrian To test this, I added net.inet.tcp.tso=0 to sysctl.conf and restarted the box;

Re: TCP Reassembly Issues

2011-11-24 Thread Lawrence Stewart
On 11/24/11 18:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD 9.0-RC2 r227852 where the net.inet.tcp.reass.curesegments value is constantly increasing (and not descreasing when there is nominal traffic with the box). It is causing tcp slowdowns as described with

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 8:00 PM, Jeremy Chadwick free...@jdc.parodius.comwrote: On Thu, Nov 24, 2011 at 07:13:39PM -0600, Kris Bauer wrote: On Thu, Nov 24, 2011 at 5:35 PM, Adrian Chadd adr...@freebsd.org wrote: Have you tried disabling the tcp offload features of your NIC?

Re: TCP Reassembly Issues

2011-11-24 Thread Lawrence Stewart
On 11/25/11 14:19, Kris Bauer wrote: On Thu, Nov 24, 2011 at 8:00 PM, Jeremy Chadwick free...@jdc.parodius.comwrote: On Thu, Nov 24, 2011 at 07:13:39PM -0600, Kris Bauer wrote: On Thu, Nov 24, 2011 at 5:35 PM, Adrian Chaddadr...@freebsd.org wrote: Have you tried disabling the tcp offload

Re: TCP Reassembly Issues

2011-11-24 Thread Kris Bauer
On Thu, Nov 24, 2011 at 10:20 PM, Lawrence Stewart lstew...@freebsd.orgwrote: On 11/25/11 14:19, Kris Bauer wrote: On Thu, Nov 24, 2011 at 8:00 PM, Jeremy Chadwick free...@jdc.parodius.comwrote: On Thu, Nov 24, 2011 at 07:13:39PM -0600, Kris Bauer wrote: On Thu, Nov 24, 2011 at 5:35 PM,

Re: TCP Reassembly Issues

2011-11-24 Thread Raul
El 25/11/2011 0:35, Adrian Chadd escribió: Have you tried disabling the tcp offload features of your NIC? In my case, there is no tcp on the ethernet interface. It is pppoe (mpd / netgraph) so no fancy hardware acceleration there. [...] %ifconfig ng0 | head -n1 ng0: