Re: i386 Xen PV support still needed?

2017-08-07 Thread Michael Young
On Mon, 7 Aug 2017, Paolo Bonzini wrote: On 01/08/2017 23:38, Dominik 'Rathann' Mierzejewski wrote: On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: We still build a special glibc variant for Xen which avoids certain segment-relative accesses which are difficult to emulate with parav

Re: i386 Xen PV support still needed?

2017-08-07 Thread Paolo Bonzini
On 01/08/2017 23:38, Dominik 'Rathann' Mierzejewski wrote: > On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: >> We still build a special glibc variant for Xen which avoids certain >> segment-relative accesses which are difficult to emulate with >> paravirtualization.. >> >> Is this still

Re: i386 Xen PV support still needed?

2017-08-03 Thread Richard W.M. Jones
On Wed, Aug 02, 2017 at 10:00:08PM +0200, Dominik 'Rathann' Mierzejewski wrote: > Thanks for the web archive links. Unfortunately, they don't quantify the > penalty, either. I'd feel more confident if I knew what it was (e.g. > 10x slower or 1.1x slower?) What I recall is it depended heavily on th

Re: i386 Xen PV support still needed?

2017-08-02 Thread Dominik 'Rathann' Mierzejewski
On Wednesday, 02 August 2017 at 14:42, Richard W.M. Jones wrote: > On Tue, Aug 01, 2017 at 11:38:45PM +0200, Dominik 'Rathann' Mierzejewski > wrote: > > On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: > > > We still build a special glibc variant for Xen which avoids certain > > > segmen

Re: i386 Xen PV support still needed?

2017-08-02 Thread Richard W.M. Jones
On Tue, Aug 01, 2017 at 11:38:45PM +0200, Dominik 'Rathann' Mierzejewski wrote: > On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: > > We still build a special glibc variant for Xen which avoids certain > > segment-relative accesses which are difficult to emulate with > > paravirtualizati

Re: i386 Xen PV support still needed?

2017-08-01 Thread Stephen John Smoogen
On 1 August 2017 at 17:38, Dominik 'Rathann' Mierzejewski < domi...@greysector.net> wrote: > On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: > > We still build a special glibc variant for Xen which avoids certain > > segment-relative accesses which are difficult to emulate with > > para

Re: i386 Xen PV support still needed?

2017-08-01 Thread Dominik 'Rathann' Mierzejewski
On Tuesday, 01 August 2017 at 14:19, Florian Weimer wrote: > We still build a special glibc variant for Xen which avoids certain > segment-relative accesses which are difficult to emulate with > paravirtualization.. > > Is this still needed? Can we drop it? What is the performance difference bet

i386 Xen PV support still needed?

2017-08-01 Thread Florian Weimer
We still build a special glibc variant for Xen which avoids certain segment-relative accesses which are difficult to emulate with paravirtualization.. Is this still needed? Can we drop it? Thanks, Florian ___ devel mailing list -- devel@lists.fedorapro