Finally I was able to distribute interrupts among 4 processors and get the desired scalability with MTU size 1500!
FYI, only these two setting changes needed (no other tunables made any difference) 1) change BIOS settings for the NIC to distribute interrupts 2) round robin interrupt distribution set pcplusmp:apic_intr_policy=1 With these setting I see each NIC is interrupting a specific CPU and "interrupt threads" are getting scheduled in that CPU...all the CPUs are equally loaded! thanks to all for providing useful pointers/info/suggestions, som. -- This message posted from opensolaris.org _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
