Re: [PATCH 00/33] Swap over NFS -v14

2007-11-18 Thread Robin Humble
On Wed, Oct 31, 2007 at 01:56:53PM +0100, Peter Zijlstra wrote: >On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: >> Thoughts: >> 1) I absolutely agree that NFS is far more prominent and useful than any >> network block device, at the present time. >> >> 2) Nonetheless, swap over NFS is a

Re: [PATCH 00/33] Swap over NFS -v14

2007-11-18 Thread Robin Humble
apologies for being insanely late into this thread On Wed, Oct 31, 2007 at 01:56:53PM +0100, Peter Zijlstra wrote: On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: Thoughts: 1) I absolutely agree that NFS is far more prominent and useful than any network block device, at the present

Re: [PATCH 00/33] Swap over NFS -v14

2007-11-02 Thread Pavel Machek
Hi! > > 2) Nonetheless, swap over NFS is a pretty rare case. I view this work > > as interesting, but I really don't see a huge need, for swapping over > > NBD or swapping over NFS. I tend to think swapping to a remote resource > > starts to approach "migration" rather than merely swapping.

Re: [PATCH 00/33] Swap over NFS -v14

2007-11-02 Thread Pavel Machek
Hi! 2) Nonetheless, swap over NFS is a pretty rare case. I view this work as interesting, but I really don't see a huge need, for swapping over NBD or swapping over NFS. I tend to think swapping to a remote resource starts to approach migration rather than merely swapping. Yes, we

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Evgeniy Polyakov
Hi. On Wed, Oct 31, 2007 at 10:54:02AM -0400, Mike Snitzer ([EMAIL PROTECTED]) wrote: > > Trouble with that part is that we don't have any sane network block > > devices atm, NBD is utter crap, and iSCSI is too complex to be called > > sane. > > > > Maybe Evgeniy's Distributed storage thingy

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Mike Snitzer
On 10/31/07, Peter Zijlstra <[EMAIL PROTECTED]> wrote: > On Wed, 2007-10-31 at 08:50 +, Christoph Hellwig wrote: > > On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: > > > Don't be misled. Swapping over NFS is just a scarecrow for the > > > seemingly real impetus behind these

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Byron Stanoszek
On Wed, 31 Oct 2007, Nick Piggin wrote: On Wednesday 31 October 2007 15:37, David Miller wrote: From: Nick Piggin <[EMAIL PROTECTED]> Date: Wed, 31 Oct 2007 14:26:32 +1100 Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Gregory Haskins
Peter Zijlstra wrote: > > But please, people who want this (I'm sure some of you are reading) do > speak up. I'm just the motivated corporate drone implementing the > feature :-) FWIW, I could have used a "swap to network technology X" like system at my last job. We were building a large

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Arnaldo Carvalho de Melo
Em Wed, Oct 31, 2007 at 01:56:53PM +0100, Peter Zijlstra escreveu: > On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: > > Thoughts: > > > > 1) I absolutely agree that NFS is far more prominent and useful than any > > network block device, at the present time. > > > > > > 2) Nonetheless,

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: > Thoughts: > > 1) I absolutely agree that NFS is far more prominent and useful than any > network block device, at the present time. > > > 2) Nonetheless, swap over NFS is a pretty rare case. I view this work > as interesting, but I

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Jeff Garzik
Thoughts: 1) I absolutely agree that NFS is far more prominent and useful than any network block device, at the present time. 2) Nonetheless, swap over NFS is a pretty rare case. I view this work as interesting, but I really don't see a huge need, for swapping over NBD or swapping over

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 14:26 +1100, Nick Piggin wrote: > On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote: > > Hi, > > > > Another posting of the full swap over NFS series. > > Hi, > > Is it really worth all the added complexity of making swap > over NFS files work, given that you could

Re: NBD was Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 12:18 +0100, Pavel Machek wrote: > Hi! > > > > So please get the VM bits for swap over network blockdevices in first, > > > > Trouble with that part is that we don't have any sane network block > > devices atm, NBD is utter crap, and iSCSI is too complex to be called > >

NBD was Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Pavel Machek
Hi! > > So please get the VM bits for swap over network blockdevices in first, > > Trouble with that part is that we don't have any sane network block > devices atm, NBD is utter crap, and iSCSI is too complex to be called > sane. Hey, NBD was designed to be _simple_. And I think it works okay

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 08:50 +, Christoph Hellwig wrote: > On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: > > Don't be misled. Swapping over NFS is just a scarecrow for the > > seemingly real impetus behind these changes which is network storage > > stuff like iSCSI. > > So can

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Tue, 2007-10-30 at 21:37 -0700, David Miller wrote: > From: Nick Piggin <[EMAIL PROTECTED]> > Date: Wed, 31 Oct 2007 14:26:32 +1100 > > > Is it really worth all the added complexity of making swap > > over NFS files work, given that you could use a network block > > device instead? > > Don't

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Christoph Hellwig
On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: > Don't be misled. Swapping over NFS is just a scarecrow for the > seemingly real impetus behind these changes which is network storage > stuff like iSCSI. So can we please do swap over network storage only first? All these VM bits

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Christoph Hellwig
On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: Don't be misled. Swapping over NFS is just a scarecrow for the seemingly real impetus behind these changes which is network storage stuff like iSCSI. So can we please do swap over network storage only first? All these VM bits look

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Tue, 2007-10-30 at 21:37 -0700, David Miller wrote: From: Nick Piggin [EMAIL PROTECTED] Date: Wed, 31 Oct 2007 14:26:32 +1100 Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block device instead? Don't be misled.

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 08:50 +, Christoph Hellwig wrote: On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: Don't be misled. Swapping over NFS is just a scarecrow for the seemingly real impetus behind these changes which is network storage stuff like iSCSI. So can we

NBD was Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Pavel Machek
Hi! So please get the VM bits for swap over network blockdevices in first, Trouble with that part is that we don't have any sane network block devices atm, NBD is utter crap, and iSCSI is too complex to be called sane. Hey, NBD was designed to be _simple_. And I think it works okay in

Re: NBD was Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 12:18 +0100, Pavel Machek wrote: Hi! So please get the VM bits for swap over network blockdevices in first, Trouble with that part is that we don't have any sane network block devices atm, NBD is utter crap, and iSCSI is too complex to be called sane. Hey,

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 14:26 +1100, Nick Piggin wrote: On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote: Hi, Another posting of the full swap over NFS series. Hi, Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Jeff Garzik
Thoughts: 1) I absolutely agree that NFS is far more prominent and useful than any network block device, at the present time. 2) Nonetheless, swap over NFS is a pretty rare case. I view this work as interesting, but I really don't see a huge need, for swapping over NBD or swapping over

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Peter Zijlstra
On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: Thoughts: 1) I absolutely agree that NFS is far more prominent and useful than any network block device, at the present time. 2) Nonetheless, swap over NFS is a pretty rare case. I view this work as interesting, but I really don't

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Arnaldo Carvalho de Melo
Em Wed, Oct 31, 2007 at 01:56:53PM +0100, Peter Zijlstra escreveu: On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote: Thoughts: 1) I absolutely agree that NFS is far more prominent and useful than any network block device, at the present time. 2) Nonetheless, swap over NFS is

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Gregory Haskins
Peter Zijlstra wrote: But please, people who want this (I'm sure some of you are reading) do speak up. I'm just the motivated corporate drone implementing the feature :-) FWIW, I could have used a swap to network technology X like system at my last job. We were building a large networking

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Mike Snitzer
On 10/31/07, Peter Zijlstra [EMAIL PROTECTED] wrote: On Wed, 2007-10-31 at 08:50 +, Christoph Hellwig wrote: On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote: Don't be misled. Swapping over NFS is just a scarecrow for the seemingly real impetus behind these changes which

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Byron Stanoszek
On Wed, 31 Oct 2007, Nick Piggin wrote: On Wednesday 31 October 2007 15:37, David Miller wrote: From: Nick Piggin [EMAIL PROTECTED] Date: Wed, 31 Oct 2007 14:26:32 +1100 Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-31 Thread Evgeniy Polyakov
Hi. On Wed, Oct 31, 2007 at 10:54:02AM -0400, Mike Snitzer ([EMAIL PROTECTED]) wrote: Trouble with that part is that we don't have any sane network block devices atm, NBD is utter crap, and iSCSI is too complex to be called sane. Maybe Evgeniy's Distributed storage thingy would work,

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Nick Piggin
On Wednesday 31 October 2007 15:37, David Miller wrote: > From: Nick Piggin <[EMAIL PROTECTED]> > Date: Wed, 31 Oct 2007 14:26:32 +1100 > > > Is it really worth all the added complexity of making swap > > over NFS files work, given that you could use a network block > > device instead? > > Don't

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread David Miller
From: Nick Piggin <[EMAIL PROTECTED]> Date: Wed, 31 Oct 2007 14:26:32 +1100 > Is it really worth all the added complexity of making swap > over NFS files work, given that you could use a network block > device instead? Don't be misled. Swapping over NFS is just a scarecrow for the seemingly

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Nick Piggin
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote: > Hi, > > Another posting of the full swap over NFS series. Hi, Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block device instead? Also, have you ensured that

[PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Peter Zijlstra
Hi, Another posting of the full swap over NFS series. [ I tried just posting the first part last time around, but that just gets more confusion by lack of a general picture ] [ patches against 2.6.23-mm1, also to be found online at:

[PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Peter Zijlstra
Hi, Another posting of the full swap over NFS series. [ I tried just posting the first part last time around, but that just gets more confusion by lack of a general picture ] [ patches against 2.6.23-mm1, also to be found online at:

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Nick Piggin
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote: Hi, Another posting of the full swap over NFS series. Hi, Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block device instead? Also, have you ensured that

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread David Miller
From: Nick Piggin [EMAIL PROTECTED] Date: Wed, 31 Oct 2007 14:26:32 +1100 Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block device instead? Don't be misled. Swapping over NFS is just a scarecrow for the seemingly real

Re: [PATCH 00/33] Swap over NFS -v14

2007-10-30 Thread Nick Piggin
On Wednesday 31 October 2007 15:37, David Miller wrote: From: Nick Piggin [EMAIL PROTECTED] Date: Wed, 31 Oct 2007 14:26:32 +1100 Is it really worth all the added complexity of making swap over NFS files work, given that you could use a network block device instead? Don't be misled.