David,
I suspect your doors arrangement is a losing proposition. A doors call is
cheap relative to many IPC methods, but expensive relative to the TLB miss
you are trying to avoid. A doors call costs a handful of microseconds or more.
A TLB miss takes approx 30 cycles for a TSB hit when the TT
Wow, thanks for the fast feedback, guys. Sorry about the insufficient detail...
I've work with Sun stuff for so long I keep forgetting about the AMD stuff.
The hardware this stuff runs on is mostly USIII and IIIi, basically
Netra/Sunfire 1280 and 440 boxes. The app is currently 32 bits. We're p