On Sat, Aug 20, 2011 at 03:37:09PM -0700, Jan Kiszka wrote: > On 2011-08-20 13:51, Edgar E. Iglesias wrote: > > Lately, my TCG emulated machines have been running terribly slow. > > Like a factor 3 or 4 slower, hardly usable. > > > > I bisected it to this: > > > > commit d5ab9713d2d4037fd56b0adddd26c8d4dc11cf09 > > Author: Jan Kiszka <jan.kis...@siemens.com> > > Date: Tue Aug 2 16:10:21 2011 +0200 > > > > Avoid allocating TCG resources in non-TCG mode > > > > Do not allocate TCG-only resources like the translation buffer when > > running over KVM or XEN. Saves a "few" bytes in the qemu address space > > and is also conceptually cleaner. > > > > Signed-off-by: Jan Kiszka <jan.kis...@siemens.com> > > Signed-off-by: Anthony Liguori <aligu...@us.ibm.com> > > > > > > It turns out that the init of the tb cache is now moved to before ram_size > > gets it's default value. And because the default tb cache size, if no > > -tb-size option is given, is based on the ram_size it is now zero.. > > Yes, already stumbled over that regression myself. See > http://thread.gmane.org/gmane.comp.emulators.qemu/113547
OK, thanks. I've pushed your fix. Cheers
