hi my hardeware are 2 pices of hp dl 145 g2 2gb ram and a intel based 1gb quad interfaces card 1 sata hd.
this work as firewall system with 5 carp interfaces with up to 15 ip. per box are 5 ethernet interfaces active. ( the system have 6 , the quad card and 2 on board ) is is possible the the hp box is not possible to do more than 2000 interupts per irq ? i have in my environment a trougthput per interface from 10 to 50Mbit. if interupts going over 1800 on one interface i get massiv slow downs and packet lost. the rise the net.inet.ip.ifq.maxlen to 1024 ( i saw before drops ) . to solve the problem as hot fix i did a trunk of 2 interfaces for this interfaces with highes interrupts load. top shows me close to 100% interrupts load but less then 1 overall load. vmstat -i interrupt total rate irq12/pciide1 62702 0 irq11/bge0 84232199 986 irq10/bge1 11944226 139 irq7/em0 129003925 1510 irq5/em1 59507109 696 irq11/em2 134192386 1571 irq11/em3 5185828 60 irq1/pckbc0 6 0 irq0/clock 8539373 99 irq8/rtc 10930625 128 Total 443598379 5194 it is possible that this hardware to small for this traffic or it is a problem from the design of the hp dl145 g2 ? holger
