Re: OpenBSD and disk slowliness

2015-01-09 Thread Jorge Gabriel Lopez Paramount
Quoting Kent Fritz : Hopefully this is not too bad advice... I've found the performance with cache=none to be unacceptable as well. I'm using cache=writeback. Of course you'll get much better performance if you remove Linux/KVM. :) It might be the case for OpenBSD/i386, but in general cache

Re: OpenBSD and disk slowliness

2015-01-09 Thread Jorge Gabriel Lopez Paramount
Hi all, Just for the record, I do not think that OpenBSD/i386 behavior with virtual disks running on KVM is a bug. Virtio was designed specially for virtual machines and all modern Linux distros and other modern operating systems support it, therefore the only good reason for not using vi

Re: OpenBSD and disk slowliness

2015-01-09 Thread Mark Kettenis
The way OpenBSD/i386 uses the xAPIC interrupt controller gives KVM (and other virtualization software) a hard time. OpenBSD/amd64 does things in a KVM-friendlier way, and we're trying to make it even friendlier. Fixing the interrupt handling on OpenBSD/i386 isn't very high on my priority list. I

Re: OpenBSD and disk slowliness

2015-01-09 Thread Richard E. Thornton
I am using OpenBSD 5.6 in a VMware 64 bit VM as guest, Ubuntu 14.10 as host, and performance seems quite acceptable. How do you know that there are any bugs or issues which need to be addressed? On Fri, 9 Jan 2015, Kent Fritz wrote: > Hopefully this is not too bad advice... > > I've found th

Re: OpenBSD and disk slowliness

2015-01-09 Thread Kent Fritz
Hopefully this is not too bad advice... I've found the performance with cache=none to be unacceptable as well. I'm using cache=writeback. Of course you'll get much better performance if you remove Linux/KVM. :) On Thu, Jan 8, 2015 at 3:21 PM, Jorge Gabriel Lopez Paramount wrote: > Hi all, > >

Re: OpenBSD and disk slowliness

2015-01-09 Thread Mikolaj Kucharski
Martin, Theo, I would like to apologize you and other developers for spreading unhelpful advises which hurt the project. I truly regret that and I am very sorry. Regards, Mikolaj On Fri, Jan 09, 2015 at 02:34:36AM +0100, Martin Pieuchot wrote: > Dear Mikolaj, > > On 09/01/15(Fri) 00:30, Mikol

Re: OpenBSD and disk slowliness

2015-01-08 Thread Theo de Raadt
> This problem looks very similar as: > > https://marc.info/?l=openbsd-misc&m=140288534929223&w=2 > > On my i386 KVM after each upgrade I run this: > > #!/bin/sh > > for kernel in /bsd /bsd.mp > do > config -fe $kernel << EOF > find mpbios > disable mpbios > find mpbios > find acp

Re: OpenBSD and disk slowliness

2015-01-08 Thread Martin Pieuchot
Dear Mikolaj, On 09/01/15(Fri) 00:30, Mikolaj Kucharski wrote: > Hi, > > This problem looks very similar as: > > https://marc.info/?l=openbsd-misc&m=140288534929223&w=2 > > On my i386 KVM after each upgrade I run this: > > #!/bin/sh > > for kernel in /bsd /bsd.mp > do > config -

Re: OpenBSD and disk slowliness

2015-01-08 Thread Mikolaj Kucharski
Hi, This problem looks very similar as: https://marc.info/?l=openbsd-misc&m=140288534929223&w=2 On my i386 KVM after each upgrade I run this: #!/bin/sh for kernel in /bsd /bsd.mp do config -fe $kernel << EOF find mpbios disable mpbios find mpbios find acpimadt disable acpimadt

OpenBSD and disk slowliness

2015-01-08 Thread Jorge Gabriel Lopez Paramount
Hi all, A few months ago I tried to install OpenBSD 5.5 in a KVM virtual machine running Linux in an amd64 computer. First tried to install the i386 version since my Linux virtual machines are i686 and was painfully slow, so much that I almost decided to not use OpenBSD. Then I tried with