Aragon Gouveia wrote: > | By Kyle Brantley<[email protected]> > Do you (or anyone) think there are any advantages to running 64 bit on > a device like this? Seems like a waste of memory to me...
The main cost is that increased memory footprint for the same workload. The cost of loading a 64bit value to/from memory is the same as a 32bit value and the cache lines are larger than a single value. If you are a Linux user then check out x32-abi http://sites.google.com/site/x32abi/home this would be ideal, keep the CPU in 64bit mode but the memory model is still 32bit and revise the ABI to be more efficient. This requires the entire user space to be rebuilt on top of gcc/binutils/kernel support. Maybe there are references on the information website pointing to a whole distribution built with it. Darryl _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
