On Thu, 27 May 2010 05:20:35 am Michael S. Tsirkin wrote: > Here's a rewrite of the original patch with a new layout. > I haven't tested it yet so no idea how this performs, but > I think this addresses the cache bounce issue raised by Avi. > Posting for early flames/comments.
Sorry, not without some evidence that it'll actually reduce cacheline bouncing. I *think* it will, but it's not obvious: the host may keep looking at avail_idx as we're updating last_seen. Or does qemu always look at both together anyway? Can someone convince me this is a win? Rusty.
