bridge vs macvlan performance (was: some veth related issues)

2009-08-04 Thread Or Gerlitz
Ben Greear wrote: > Well, it seems we could and should fix veth to work, but it will have > to do equivalent work of copying an skb most likely, so either way > you'll probably get a big performance hit. Using the same pktgen script (i.e with clone=0) I see that a veth-->bridge-->veth configura

Re: [PATCH 1/1] virtio_serial: A char device for simple guest <-> host communication

2009-08-04 Thread Amit Shah
On (Wed) Aug 05 2009 [09:33:40], Rusty Russell wrote: > On Tue, 28 Jul 2009 03:34:33 am Amit Shah wrote: > > We expose multiple char devices ("ports") for simple communication > > between the host userspace and guest. > > Hi Amit, > >OK, seems like it's time for some serious review. Below.

Re: [PATCH 1/1] virtio_serial: A char device for simple guest <-> host communication

2009-08-04 Thread Rusty Russell
On Tue, 28 Jul 2009 03:34:33 am Amit Shah wrote: > We expose multiple char devices ("ports") for simple communication > between the host userspace and guest. Hi Amit, OK, seems like it's time for some serious review. Below. > +config VIRTIO_SERIAL > + tristate "Virtio serial" > + sel

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Jeremy Fitzhardinge
On 08/04/09 10:33, Peter Zijlstra wrote: > On Tue, 2009-08-04 at 19:29 +0200, Martin Schwidefsky wrote: > > >>> So its going to split user time into user and guest. Does that really >>> make sense? For the host kernel it really is just another user process, >>> no? >>> >> The code (at lea

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Martin Schwidefsky
On Tue, 04 Aug 2009 19:33:14 +0200 Peter Zijlstra wrote: > On Tue, 2009-08-04 at 19:29 +0200, Martin Schwidefsky wrote: > > > > So its going to split user time into user and guest. Does that really > > > make sense? For the host kernel it really is just another user process, > > > no? > > > > T

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Peter Zijlstra
On Tue, 2009-08-04 at 19:29 +0200, Martin Schwidefsky wrote: > > So its going to split user time into user and guest. Does that really > > make sense? For the host kernel it really is just another user process, > > no? > > The code (at least in parts) is already upstream. Look at the > account_gu

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Martin Schwidefsky
On Tue, 04 Aug 2009 18:26:41 +0200 Peter Zijlstra wrote: > On Tue, 2009-08-04 at 17:07 +0200, Martin Schwidefsky wrote: > > On Tue, 04 Aug 2009 16:16:38 +0200 > > Peter Zijlstra wrote: > > > > > These patches never seem to have made it onto LKML?! > > > > > > On Mon, 2007-08-20 at 15:13 +0200,

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Peter Zijlstra
On Tue, 2009-08-04 at 17:07 +0200, Martin Schwidefsky wrote: > On Tue, 04 Aug 2009 16:16:38 +0200 > Peter Zijlstra wrote: > > > These patches never seem to have made it onto LKML?! > > > > On Mon, 2007-08-20 at 15:13 +0200, Laurent Vivier wrote: > > > The aim of these four patches is to introduc

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Martin Schwidefsky
On Tue, 04 Aug 2009 16:16:38 +0200 Peter Zijlstra wrote: > These patches never seem to have made it onto LKML?! > > On Mon, 2007-08-20 at 15:13 +0200, Laurent Vivier wrote: > > The aim of these four patches is to introduce Virtual Machine time > > accounting. > > > > _Ingo_, as these patches m

Re: [PATCH 0/4] Virtual Machine Time Accounting

2009-08-04 Thread Peter Zijlstra
These patches never seem to have made it onto LKML?! On Mon, 2007-08-20 at 15:13 +0200, Laurent Vivier wrote: > The aim of these four patches is to introduce Virtual Machine time accounting. > > _Ingo_, as these patches modify files of the scheduler, could you have a look > to > them, please ? >