Re: [Qemu-devel] [PATCH] icount: disable icount with multiprocessor guests

2013-09-27 Thread Paolo Bonzini
Il 25/09/2013 01:39, Peter Maydell ha scritto: > On 25 September 2013 00:52, Paolo Bonzini wrote: >> If -icount is enabled with multiprocessor guests, all CPUs increment >> the same counter, which then basically runs too fast by a factor of >> smp_cpus. This makes little sense and complicates fur

Re: [Qemu-devel] [PATCH] icount: disable icount with multiprocessor guests

2013-09-24 Thread Peter Maydell
On 25 September 2013 00:52, Paolo Bonzini wrote: > If -icount is enabled with multiprocessor guests, all CPUs increment > the same counter, which then basically runs too fast by a factor of > smp_cpus. This makes little sense and complicates further a feature > whose implementation is pretty obsc

[Qemu-devel] [PATCH] icount: disable icount with multiprocessor guests

2013-09-24 Thread Paolo Bonzini
If -icount is enabled with multiprocessor guests, all CPUs increment the same counter, which then basically runs too fast by a factor of smp_cpus. This makes little sense and complicates further a feature whose implementation is pretty obscure already. Signed-off-by: Paolo Bonzini --- cpus.c |