[uml-devel] Performance tests (was: Using UML in libguestfs)

2013-08-14 Thread Richard W.M. Jones
I performed some benchmarks against KVM: http://rwmj.wordpress.com/2013/08/14/performance-of-user-mode-linux-as-a-libguestfs-backend/#content Notes for those that don't want to read all that, there are at least two bugs I found: (1) fsync /dev/ubda (in the guest) is not honoured by the user-mod

Re: [uml-devel] Issues with a rather unusual configured NFS server

2013-08-14 Thread Toralf Förster
On 08/13/2013 11:53 PM, J. Bruce Fields wrote: > On Mon, Aug 12, 2013 at 04:36:40PM +0200, Jan Kara wrote: >> On Sun 11-08-13 11:48:49, Toralf Förster wrote: >>> so that the server either crashes (if it is a user mode linux image) or at >>> least its reboot functionality got broken >>> - if the NF

Re: [uml-devel] Issues with a rather unusual configured NFS server

2013-08-14 Thread J. Bruce Fields
On Mon, Aug 12, 2013 at 04:36:40PM +0200, Jan Kara wrote: > On Sun 11-08-13 11:48:49, Toralf Förster wrote: > > so that the server either crashes (if it is a user mode linux image) or at > > least its reboot functionality got broken > > - if the NFS server is hammered with scary NFS calls using a