* Peter Xu (pet...@redhat.com) wrote: > The doc update is still missing under docs/, we may need that for a final > merge. > > Are you using this in production? How it performs in real life? What is > the major issue to solve for you? Is it "zero detect eats cpu too much", > or "migration too slow", or "we're doing experiment with the new hardwares, > and see how it goes if we apply it on top of migrations"? > > There're a lot of new code added for dsa just for this optimization on zero > page detection. We'd better understand the major benefits, and also > whether that's applicable to other part of qemu or migration-only. I > actually wonder if we're going to support enqcmd whether migration is the > best starting point (rather than other places where we emulate tons of > devices, and maybe some backends can speedup IOs with enqcmd in some > form?).. but it's more of a pure question.
The other thing that worries me here is that there's not much abstraction, I'm sure there's a whole bunch of offload cards that could do tricks like this; how do we avoid having this much extra code for each one? Dave > > Thanks, > > -- > Peter Xu > -- -----Open up your eyes, open up your mind, open up your code ------- / Dr. David Alan Gilbert | Running GNU/Linux | Happy \ \ dave @ treblig.org | | In Hex / \ _________________________|_____ http://www.treblig.org |_______/
