Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-19 Thread Markus Wernig
On 06/17/2014 11:10 AM, Brad Smith wrote: >>> boot -c >>> disable mpbios > Because ACPI is in use which takes higher precedence over MP BIOS. You > have to disable acpimadt. THANKS GUYS!! This just "resolved" a blocker that had for 2 years prevented me from upgrading my OpenBSD kvm guests

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-18 Thread Kapetanakis Giannis
On 17/06/14 22:00, Christiano F. Haesbaert wrote: On 17 June 2014 20:47, Mikolaj Kucharski wrote: Do you guys think it's worth opening bug report with RedHat to get them look into this, or is the problem more on OpenBSD side? Ideally I would like to run unmodified OpenBSD kernel on my VMs. On

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Christiano F. Haesbaert
On 17 June 2014 20:47, Mikolaj Kucharski wrote: > Mike, > > On Tue, Jun 17, 2014 at 10:30:23AM -0700, Mike Larkin wrote: >> On Tue, Jun 17, 2014 at 05:10:51AM -0400, Brad Smith wrote: >> > Because ACPI is in use which takes higher precedence over MP BIOS. You >> > have to disable acpimadt. >> > >>

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Mike Larkin
On Tue, Jun 17, 2014 at 07:47:32PM +0100, Mikolaj Kucharski wrote: > Mike, > > On Tue, Jun 17, 2014 at 10:30:23AM -0700, Mike Larkin wrote: > > On Tue, Jun 17, 2014 at 05:10:51AM -0400, Brad Smith wrote: > > > Because ACPI is in use which takes higher precedence over MP BIOS. You > > > have to dis

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Mikolaj Kucharski
Mike, On Tue, Jun 17, 2014 at 10:30:23AM -0700, Mike Larkin wrote: > On Tue, Jun 17, 2014 at 05:10:51AM -0400, Brad Smith wrote: > > Because ACPI is in use which takes higher precedence over MP BIOS. You > > have to disable acpimadt. > > > > Randomly disabling parts of the kernel is likely to ca

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Mike Larkin
On Tue, Jun 17, 2014 at 05:10:51AM -0400, Brad Smith wrote: > On 17/06/14 4:56 AM, Mikolaj Kucharski wrote: > >On Mon, Jun 16, 2014 at 11:07:39PM +0100, Kevin Chadwick wrote: > >>previously on this list Mikolaj Kucharski contributed: > >> > >>>by disabling mpbios on > OpenBSD and falling back t

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Brad Smith
On 17/06/14 4:56 AM, Mikolaj Kucharski wrote: On Mon, Jun 16, 2014 at 11:07:39PM +0100, Kevin Chadwick wrote: previously on this list Mikolaj Kucharski contributed: by disabling mpbios on OpenBSD and falling back to the old pic controller, in this case you I cannot find how to enable 'the

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Gustav Fransson Nyvell
On 06/17/14 10:56, Mikolaj Kucharski wrote: On Mon, Jun 16, 2014 at 11:07:39PM +0100, Kevin Chadwick wrote: previously on this list Mikolaj Kucharski contributed: by disabling mpbios on OpenBSD and falling back to the old pic controller, in this case you I cannot find how to enable 'the o

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-17 Thread Mikolaj Kucharski
On Mon, Jun 16, 2014 at 11:07:39PM +0100, Kevin Chadwick wrote: > previously on this list Mikolaj Kucharski contributed: > > > by disabling mpbios on > > > OpenBSD and falling back to the old pic controller, in this case you > > > > > > > I cannot find how to enable 'the old pic controller' in

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-16 Thread Kevin Chadwick
previously on this list Mikolaj Kucharski contributed: > by disabling mpbios on > > OpenBSD and falling back to the old pic controller, in this case you > > > > I cannot find how to enable 'the old pic controller' in libvirt with > qemu-kvm. Do you know by any chance how to enable it? I believ

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-16 Thread Mikolaj Kucharski
On Mon, Jun 16, 2014 at 11:19:16AM +0200, Christiano F. Haesbaert wrote: > On 16 June 2014 04:19, Mikolaj Kucharski wrote: > > My main question is, do you experience similar slow I/O on OpenBSD i386 > > on your Qemu/KVM installations? > > > > Are you aware of any problem with OpenBSD i386 under Qe

Re: Very slow I/O under OpenBSD i386 on qemu-kvm from RHEL7rc

2014-06-16 Thread Christiano F. Haesbaert
On 16 June 2014 04:19, Mikolaj Kucharski wrote: > Hi, > > Please CC me in any replies as I'm not subscribed to misc emails. > > My main question is, do you experience similar slow I/O on OpenBSD i386 > on your Qemu/KVM installations? > > Are you aware of any problem with OpenBSD i386 under Qemu/KV