qemu has an option `*qemu* -*cpu host` that will use the host cpu features*
2011/7/17 Kfir Lavi <lavi.k...@gmail.com> > > > On Sat, Jul 16, 2011 at 9:13 PM, Michael Orlitzky <mich...@orlitzky.com>wrote: > >> On 07/16/2011 09:54 AM, Kfir Lavi wrote: >> > Hi, >> > I'm creating a router based on Gentoo, that needs to run as a vm using >> > qemu. >> > The mother machine will be Core I7 4 cores. >> > What cpu and CFLAGS should I use to get the best performance out of this >> vm? >> > >> > Thanks, >> > Kfir >> >> CFLAGS="-march=native -O2 -pipe" enables everything safe these days. >> >> Hi, > I think -march=native is a problem, as it will compile for my cpu. > Qemu has different CPU, and i would like to compile my code to suit the vm > environment > as close as possible. > > Kfir >
