hi charles, thanks for the details. via draw.) this is on a 1.2Ghz core duo on ubuntu 8.04. it "didn't seem > too bad" > (ie, not unusable) but it probably isn't as responsive as under plan 9 > proper
yes, in cases like this, it is usable but the noticeable lag and the relatively slow updates make me feel uncomfortable, particularly since i try to use this kind of setup all the time, as opposed to sporadic use. also, i think the issue becomes more severe for higher bits-per-pixel and higher screen resolution, say 1920x1200. btw, i was always happy with the speed at which plan9 updates screen (as much as i like plan9 graphics interface itself). the screen updates are not too fast, not too slow. i used to feel too fast screen updates are not good for good experience (for development at least). i am also happy with the speed at which inferno draw runs on top of plan9 when plan9 runs natively. the cases where i see noticeable differences are like vmware-fusion/parallels, drawterm, remote plan9 terminal over network in which inferno is started, etc. > and if you're used to that you probably would notice the difference. > i can't easily run them side by side for direct comparison. > > inferno applications will be drawing via Inferno's /dev/draw, with a screen > implementation that ships updated rectangles to plan 9's using its 'y' and > 'v' operations. > the buffer size is determined by plan 9's iounit. > inferno (on Plan 9 and thus 9vx) can be set to use plan 9's /dev/draw > directly, so inferno applications will be bypassing emu's /dev/draw. > it's a proof-of-concept scheme (ie, too many limitations at the moment > for real use -- not because of draw but window management). i tried my > script > to run charon that way, under 9vx, and it was much, much worse than > under wm through inferno's own draw, so that's not an immediate fix. > it was really very bad. > (by the way, the only significant reason for inferno's current indirection > on plan 9 > is to ensure the same draw code is used and tested in all implementations.) > is this something that was introduced in vita nuova's release? from what i remember from inferno BU times, i think inferno used plan9's draw directly since there was (almost?) no difference at that time. thanks dharani
