Jonathan Nieder wrote: > Michael Tokarev wrote: >> So, the problem is that with this kernel commit: >> >> commit 7972995b0c346de76fe260ce0fd6bcc8ffab724a >> Author: Gleb Natapov <g...@redhat.com> >> Date: Thu Mar 18 15:20:24 2010 +0200 >> >> KVM: x86 emulator: Move string pio emulation into emulator.c >[...] >> which went into mainline with 2.6.35, there has been >> quite some changes in PIO emulation handling in kvm >> which resulted in correct but slow (as opposed by >> fast but incorrect) emulation. This slowed down >> guests that use PIO to access disks. [...] > That means "wishlist", and probably not worth tracking unless we want > to document it somewhere or someone is interested in working on it, > right?
On second thought, a regression's a regression --- going from usable but subtly buggy to unusable is not progress. :) Maybe it would be possible to introduce some kind of parameter to get back the speed at the cost of correctness again? Just musing. Sorry for the noise; I'll leave this to the experts. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110719091309.ga24...@elie.gateway.2wire.net
