On Thu, Jul 19, 2012 at 04:43:05PM +0200, Luigi Rizzo wrote: > hi, > while playing with various qemu versions i noticed that > qemu-devel now in FreeBSD ports (1.1.0) is slow as hell when > booting FreeBSD (take for instance the netmap image at > > http://info.iet.unipi.it/~luigi/netmap/20120608-netmap-picobsd-head-amd64.bin > > while 0.11.x and 1.1.1 and 1.0.1 seem to work well. > > I should mention that i had the same exact problem a few months > ago with a qemu version compiled on my Mac using macports, > which was fixed by manually building one myself from the sources > (the working Mac version reports version 1.0.91; unfortunately > i do not remember which version it was, but judging from the > macports history it could have been either 0.14.1 or 1.0) > so i do not think this is a specific problem with FreeBSD. > > Are you able to reproduce this problem ? Any idea on what could it be ?
Just for the archives: the problem was that the FreeBSD port, when compiling with CLANG, used --enable-tcg-interpreter which caused the slow code to be generated. I suppose the same problem existed in the macports version cheers luigi > cheers > luigi
