How much can I increase net.inet.ip.ifq.maxlen ?
I'm now at 2048 and still seeing increase in net.inet.ip.ifq.drops. This
morning, it was at 21280 and now at 21328.
I've change the système for a temporary more powerfull one (core 2 quad
+ 2 dual 82571EB) while I'm commanding and building new server and now
the congestion have dropped from 3.9 to 0.8.
Something I must specify, I use bi-nat to save public ip address and
have thousand of bi-nat rule divided in some anchors.
Thanks
Michel
Le 2012-08-19 08:21, Stuart Henderson a écrit :
On 2012-08-14, Michel Blais <mic...@targointernet.com> wrote:
I maybe found something, congestion seem high when I check with pftcl -si.
I don't think it's hardware related since CPU is under 50% use.
I saw this tread where Henning suggest to raise net.inet.ip.ifq.maxlen
so I raided it to 512 instead of 256.
http://old.nabble.com/PF-congestion-question-td7088168.html
It's a old thread so I wanted to know if it's still a good idea to raise
this sysctl value.
If you are seeing increases in net.inet.ip.ifq.drops, then yes it
usually is a good idea to increase the queue length.
