Dear Paul,
I still don't like the huge hit ipfw and lagg take :/
I think, you can't use fastforward with with lagg.
** I tried polling in UP mode and I got some VERY interesting results..
CPU is 44% idle (idle polling isn't on) but I'm getting errors! It's doing
530kpps with ipfw loaded, which without polling uses 100% cpu but now it says
my cpu is 44% idle? that makes no sense.. If it was idle why am I getting
errors? I only get errors when em taskq was eating 100% cpu..
Idle polling on/off makes no difference.
user_frac is set to 5 ..
what are your values:
kern.polling.reg_frac=
kern.polling.user_frac=
kern.polling.burst_max=
I use:
kern.polling.reg_frac=20
kern.polling.user_frac=20
kern.polling.burst_max=512
if you need more than 1000, you need to change the code:
src/sys/kern/kern_poll.c
#define MAX_POLL_BURST_MAX 1000
So my maximum without polling is close to 800kpps but if I push that it
starts locking me from doing things, or
how many kpps do you want to achieve?
HZ=2000 for this test (512/512 descriptors)
you mean:
hw.em.rxd=512
hw.em.txd=512
?
can you try with polling:
hw.em.rxd=4096
hw.em.txd=4096
Kind regards,
Ingo Flaschberger
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