[sldev] Alignment and optimizations

[Jason Giglio]

Dzonatas wrote:
> General data alignment is another way to reduce cache pollution, but we 
> are aways from that being worthwhile. I've turned on alignment and 
> optimizations for more recent processors. With the viewer completely 
> compiled that way, I've seen code run 2 to 3 times faster. However, that 
> would mean maintenance overhead for separate binaries for similar 
> processors, which I've learned has been discussed and passed on.

Would it?  How bad is the performance hit on a system it wasn't compiled 
for?  Is there a "best compromise" CPU that could be optimized for that 
has the least negative impact on other CPUs?

-Jason