Most of the commands @Timothy_Hall came up with for troubleshooting performance on regular gateways work as-is on SMB appliances.
One required modification as the Busybox version of netstat doesn't support the required option, but you can get the information another way.
I will admit that I'm not sure how useful these commands are on an SMB appliance given the limited tuning options on SMB appliances.
That said, I took a few minutes to figure it out and document it on the off chance it is.
These commands must be executed in expert mode.
Should work whether the appliance is locally or centrally managed.
fwaccel stat
fwaccel stat -s
grep -c ^processor /proc/cpuinfo
awk '/:/ { print($1,$5, $13) }' < /proc/net/dev
fw ctl affinity -l -r
fw ctl multik stat
cpstat os -f multi_cpu -o 1 -c 5
