Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Subrata Modak]

On Wed, 2009-03-18 at 19:33 +0530, Subrata Modak wrote: 
> Thanks Serge.
> 
> On Wed, 2009-03-18 at 08:39 -0500, Serge E. Hallyn wrote:
> > Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > > Serge,
> > > 
> > > Did i talk to you regarding these tests in our OLS 2008 meeting ? I do
> > > not remember exactly, but, when i saw this posting, i thought may be
> > > there was some conversation.
> > 
> > I'm not sure.  However no patches are in -mm or linux-next yet.
> > 
> > I'm not yet certain what the test methodology will be.  Some for
> > instance feel that the best way to test c/r is to just run ltp
> > inside a container and continuously c/r it.  Of course, that
> > isn't very useful when c/r support is not yet sufficient to
> > accomplish that.  So at the moment we do have sets of programs
> > specifically written to be checkpointable.
> > 
> > For instance I have a program and script which continuously
> > runs, updates state, writes to a file, checkpoints, kills,
> > and restarts.  That sort of thing should make a nice testcase.
> > Oren maintains a git tree with checkpointable programs at
> > git://git.ncl.cs.columbia.edu/pub/git/user-cr.git .
> > 
> > So definately let's talk again after patches hit mainline.  I'll
> > whip up some testcases based on existing code.

Serge,

Do we have this in 2.6.30 ?

Regards--
Subrata

> 
> We would wait till it hits at least the -mm, from where you can start
> pushing some 2/3 tests.
> 
> Regards--
> Subrata
> 
> > 
> > -serge
> 
> 
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Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Serge E. Hallyn]

Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> On Wed, 2009-03-18 at 19:33 +0530, Subrata Modak wrote: 
> > Thanks Serge.
> > 
> > On Wed, 2009-03-18 at 08:39 -0500, Serge E. Hallyn wrote:
> > > Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > > > Serge,
> > > > 
> > > > Did i talk to you regarding these tests in our OLS 2008 meeting ? I do
> > > > not remember exactly, but, when i saw this posting, i thought may be
> > > > there was some conversation.
> > > 
> > > I'm not sure.  However no patches are in -mm or linux-next yet.
> > > 
> > > I'm not yet certain what the test methodology will be.  Some for
> > > instance feel that the best way to test c/r is to just run ltp
> > > inside a container and continuously c/r it.  Of course, that
> > > isn't very useful when c/r support is not yet sufficient to
> > > accomplish that.  So at the moment we do have sets of programs
> > > specifically written to be checkpointable.
> > > 
> > > For instance I have a program and script which continuously
> > > runs, updates state, writes to a file, checkpoints, kills,
> > > and restarts.  That sort of thing should make a nice testcase.
> > > Oren maintains a git tree with checkpointable programs at
> > > git://git.ncl.cs.columbia.edu/pub/git/user-cr.git .
> > > 
> > > So definately let's talk again after patches hit mainline.  I'll
> > > whip up some testcases based on existing code.
> 
> Serge,
> 
> Do we have this in 2.6.30 ?

Let me check!

Heh, just kidding.  Nope.

-serge

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Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Subrata Modak]

On Tue, 2009-06-23 at 10:02 -0500, Serge E. Hallyn wrote: 
> Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > On Wed, 2009-03-18 at 19:33 +0530, Subrata Modak wrote: 
> > > Thanks Serge.
> > > 
> > > On Wed, 2009-03-18 at 08:39 -0500, Serge E. Hallyn wrote:
> > > > Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > > > > Serge,
> > > > > 
> > > > > Did i talk to you regarding these tests in our OLS 2008 meeting ? I do
> > > > > not remember exactly, but, when i saw this posting, i thought may be
> > > > > there was some conversation.
> > > > 
> > > > I'm not sure.  However no patches are in -mm or linux-next yet.
> > > > 
> > > > I'm not yet certain what the test methodology will be.  Some for
> > > > instance feel that the best way to test c/r is to just run ltp
> > > > inside a container and continuously c/r it.  Of course, that
> > > > isn't very useful when c/r support is not yet sufficient to
> > > > accomplish that.  So at the moment we do have sets of programs
> > > > specifically written to be checkpointable.
> > > > 
> > > > For instance I have a program and script which continuously
> > > > runs, updates state, writes to a file, checkpoints, kills,
> > > > and restarts.  That sort of thing should make a nice testcase.
> > > > Oren maintains a git tree with checkpointable programs at
> > > > git://git.ncl.cs.columbia.edu/pub/git/user-cr.git .
> > > > 
> > > > So definately let's talk again after patches hit mainline.  I'll
> > > > whip up some testcases based on existing code.
> > 
> > Serge,
> > 
> > Do we have this in 2.6.30 ?
> 
> Let me check!
> 
> Heh, just kidding.  Nope.

So, i can expect LTP-mm patches from you in future ;-)

Regards--
Subrata

> 
> -serge


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Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Subrata Modak]

Serge,

On Thu, 2009-06-25 at 14:40 +0530, Subrata Modak wrote: 
> On Tue, 2009-06-23 at 10:02 -0500, Serge E. Hallyn wrote: 
> > Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > > On Wed, 2009-03-18 at 19:33 +0530, Subrata Modak wrote: 
> > > > Thanks Serge.
> > > > 
> > > > On Wed, 2009-03-18 at 08:39 -0500, Serge E. Hallyn wrote:
> > > > > Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> > > > > > Serge,
> > > > > > 
> > > > > > Did i talk to you regarding these tests in our OLS 2008 meeting ? I do
> > > > > > not remember exactly, but, when i saw this posting, i thought may be
> > > > > > there was some conversation.
> > > > > 
> > > > > I'm not sure.  However no patches are in -mm or linux-next yet.
> > > > > 
> > > > > I'm not yet certain what the test methodology will be.  Some for
> > > > > instance feel that the best way to test c/r is to just run ltp
> > > > > inside a container and continuously c/r it.  Of course, that
> > > > > isn't very useful when c/r support is not yet sufficient to
> > > > > accomplish that.  So at the moment we do have sets of programs
> > > > > specifically written to be checkpointable.
> > > > > 
> > > > > For instance I have a program and script which continuously
> > > > > runs, updates state, writes to a file, checkpoints, kills,
> > > > > and restarts.  That sort of thing should make a nice testcase.
> > > > > Oren maintains a git tree with checkpointable programs at
> > > > > git://git.ncl.cs.columbia.edu/pub/git/user-cr.git .
> > > > > 
> > > > > So definately let's talk again after patches hit mainline.  I'll
> > > > > whip up some testcases based on existing code.

Any good news for LTP here ?

Regards--
Subrata

> > > 
> > > Serge,
> > > 
> > > Do we have this in 2.6.30 ?
> > 
> > Let me check!
> > 
> > Heh, just kidding.  Nope.
> 
> So, i can expect LTP-mm patches from you in future ;-)
> 
> Regards--
> Subrata
> 
> > 
> > -serge
> 
> 
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Re: [LTP] [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Serge E. Hallyn]

Quoting Subrata Modak (subrata@linux.vnet.ibm.com):
> Serge,
> 
> On Thu, 2009-06-25 at 14:40 +0530, Subrata Modak wrote: 
> > > > > > So definately let's talk again after patches hit mainline.  I'll
> > > > > > whip up some testcases based on existing code.
> 
> Any good news for LTP here ?

Fraid not

-serge

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