Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread Stephan von Krawczynski
Hello all, let me shortly tell you my own experiences with virtual disk performance. In short: I stopped using image files of any kind. I switched to lvm partitions. The reason is that your virtual hosts will choke if you copy files to your physical host over the net or on the host itself. I tried

Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread Quentin Hartman
Thanks again for the input. I appreciate the suggestions and sharing your experiences. Yesterday I decided to start the whole process of benchmarking and proving what is going on over again from the beginning and discovered that the low-level benchmarks I was basing my assumptions on were wrong. T

Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread Dale R. Worley
> From: Stephan von Krawczynski > let me shortly tell you my own experiences with virtual disk performance. > In short: I stopped using image files of any kind. I switched to lvm > partitions. The reason is that your virtual hosts will choke if you copy files > to your physical host over the net

Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread Stephan von Krawczynski
On Fri, 30 May 2014 11:29:08 -0400 wor...@alum.mit.edu (Dale R. Worley) wrote: > > From: Stephan von Krawczynski > > > let me shortly tell you my own experiences with virtual disk performance. > > In short: I stopped using image files of any kind. I switched to lvm > > partitions. The reason is

Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread dw+qemu-discuss
On Fri, May 30, 2014 at 06:47:15PM +0200, Stephan von Krawczynski wrote: > > I'm no expert on this, but it sounds to me like the file copy is using > > memory to cache disk blocks, swapping out the memory that is the > > emulated memory of the guests. It seems to me that the solution to > > that

Re: [Qemu-discuss] Disk Performance

2014-05-30 Thread Stephan von Krawczynski
On Fri, 30 May 2014 16:53:50 + dw+qemu-disc...@hmmz.org wrote: > On Fri, May 30, 2014 at 06:47:15PM +0200, Stephan von Krawczynski wrote: > > > > I'm no expert on this, but it sounds to me like the file copy is using > > > memory to cache disk blocks, swapping out the memory that is the > > >

Re: [Qemu-discuss] Configuring the VM's display

2014-05-30 Thread Dale R. Worley
> From: wor...@alum.mit.edu (Dale R. Worley) > > (I'm just getting started with Qemu.) I'd like to be able to > configure the resolution of the VM's display so that Qemu doesn't try > to put up an X window that is bigger than the host's display. I can't > find any description of how to set the d