On Wed, Jan 08, 2014 at 07:41:58PM -0800, Michael Dalton wrote: > Sorry, forgot to mention - if we want to explore combining the buffer > address and truesize into a single void *, we could also exploit the > fact that our size ranges from aligned GOOD_PACKET_LEN to PAGE_SIZE, and > potentially encode fewer values for truesize (and require a smaller > alignment than 256). The prior e-mails discussion of 256 byte alignment > with 256 values is just one potential design point. > > Best, > > Mike
Good point. I think we should keep the option to make buffers bigger than 4K, so I think we should start with 256 alignment, then see if there are workloads that are improved by smaller alignment. Can you add wrapper inline functions to pack/unpack size and buffer pointer to/from void *? This way it will be easy to experiment with different alignments. _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
