28.08.2019 1:46, Eugene Grosbein wrote: > 28.08.2019 1:03, Andrey V. Elsukov wrote: > >> As you can see, when ipfw produces high load, interrupt column is more >> than system. > > Interrupt numbers higher than others generally mean that traffic is processed > without netisr queueing mostly. > That is expected for plain routing. I'm not sure if this would be same in > case of bridging. > > Victor, do you have some non-default tuning in your /boot/loader.conf or > /etc/sysctl.conf? > If yes, could you show them? If not, you should try something like this. For > loader.conf: > > hw.igb.rxd=4096 > hw.igb.txd=4096 > net.isr.bindthreads=1 > net.isr.defaultqlimit=4096 > #substitute total number of CPU cores in the system here > net.isr.maxthreads=4 > # EOF
Also, you should monitor interrupt numbers shown by "systat -vm 3" for igb* devices at hours of most load. If they approach 8000 limit but not exceed it, you may be suffering from this and should raise the limit with /boot/loader.conf: hw.igb.max_interrupt_rate=32000 _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
