search for: 39062

OK, so I've spent a few days benchmarking. Turns out 80% of virtio_add_buf cases are uni-directional (including the always-performance-sensitive networking code), and that gets no performance penalty (though tests with real networking would be appreciated!). I'm not reposting all the "convert driver to virtio_add_outbuf()" patches: just the scsi one which I didn't have

OK, so I've spent a few days benchmarking. Turns out 80% of virtio_add_buf cases are uni-directional (including the always-performance-sensitive networking code), and that gets no performance penalty (though tests with real networking would be appreciated!). I'm not reposting all the "convert driver to virtio_add_outbuf()" patches: just the scsi one which I didn't have

...n <- 500000 > m <- 20 > > x <- matrix(ncol=m, nrow=n) > x <- matrix(NA, ncol=m, nrow=n) > x <- matrix(0, ncol=m, nrow=n) > x <- matrix(rep(NA, n*m), ncol=m, nrow=n) > x <- matrix(rep('0', n*m), ncol=m, nrow=n) Error: cannot allocate vector of size 39062 Kb > x <- matrix(rep(0, n*m), ncol=m, nrow=n) Error: cannot allocate vector of size 78125 Kb > x <- matrix(rep('0', n*m), ncol=m, nrow=n) Error: cannot allocate vector of size 39062 Kb > gc() used (Mb) gc trigger (Mb) Ncells 174208 4.7 350000 9.4 Vcells 1...

Add virtqueue_add_sgs which is more general than virtqueue_add_buf, which makes virtio-scsi and virtio-blk nicer, then add virtqueue_add_inbuf and virtqueue_add_outbuf which handle the more general case, and finally delete virtqueue_add_buf(). I'm hoping this will be the final post of the whole series, and it can move from my pending-rebases tree into virtio-next. Thanks! Rusty. Paolo

Add virtqueue_add_sgs which is more general than virtqueue_add_buf, which makes virtio-scsi and virtio-blk nicer, then add virtqueue_add_inbuf and virtqueue_add_outbuf which handle the more general case, and finally delete virtqueue_add_buf(). I'm hoping this will be the final post of the whole series, and it can move from my pending-rebases tree into virtio-next. Thanks! Rusty. Paolo

I spent hours the other night trying to re-map my Logitech USB wireless gamepad for playing games in Wine. I added registry keys all over the place with the cryptic X,Y,Z,Rx nonsense but nothing would seem to work. Does anyone know how to do this properly, or is it broken? I'm trying to map the right thumbstick for looking around and left stick for moving in Rune.