Subrata,
I will review the same and get back with the comments/suggestions.
Thanks & Regards,
Suzuki K P
Linux Technology Centre,
6D, EGL Business Park,
Bangalore - 560 071
Ph : +91-80-41776461
Mob. : +91-9886831625
Mobile : 1-414-455-4231
Subrata Modak
<[EMAIL PROTECTED]
et.ibm.com> To
Vijay Kumar
06/17/2008 08:11 <[EMAIL PROTECTED]>, Suzuki
വൈകു Kp/India/[EMAIL PROTECTED]
cc
ltp-list
Please respond to <[email protected]>, B
[EMAIL PROTECTED] N Poornima/India/[EMAIL PROTECTED],
Supriya
t.ibm.com Kannery/India/[EMAIL PROTECTED],
[EMAIL PROTECTED],
Sridhar Vinay/India/[EMAIL PROTECTED],
Anoop V
Chakkalakkal/India/[EMAIL PROTECTED]
Subject
Re: [LTP] Fwd: Re: Test Case
Design for move_pages()
Hi Suzuki,
Can you kindly review Vijay´s design and explore ways to collaborate on
this.
Regards--
Subrata
On Mon, 2008-06-16 at 15:30 +0530, Subrata Modak wrote:
> Hi Vijay,
>
> Suzuki is working on move_pages() as well.
>
> Hi Suzuki,
>
> Vijay is also working on this. Can you please share some thoughts on
> your development so far? I have forwarded the earlier mail discussion
> below.
>
> Regards--
> Subrata
>
> -------- Forwarded Message --------
> From: Subrata Modak <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> To: Vijay Kumar <[EMAIL PROTECTED]>
> Cc: supriyak <[EMAIL PROTECTED]>, Michael Kerrisk
> <[EMAIL PROTECTED]>, ltp-list
> <[email protected]>, Supriya Kannery <[EMAIL PROTECTED]>,
> Sharyathi Nagesh <[EMAIL PROTECTED]>, [EMAIL PROTECTED],
> Sridhar Vinay <[EMAIL PROTECTED]>
> Subject: Re: [LTP] Test Case Design for move_pages()
> Date: Sat, 14 Jun 2008 13:01:31 +0530
>
> On Sat, 2008-06-14 at 12:18 +0530, Vijay Kumar wrote:
> > Hi everyone,
> > here is the initial test case design for move_pages(). Please
> > do send in your review comments. Do let me know, if any other
> > test cases are required. The test cases are based on the man
> > page available at http://linux.die.net/man/2/move_pages
>
> Thank you very much for quickly posting your design. I would loop in few
> more people i know who are also trying to write some similar test cases
> on move_pages, for better understanding, and for the sake that both your
> ´s and their work can be mutually beneficial.
>
> Nagesh/Supriya,
>
> Can you please look in to this design aspects of Vijay. I would like to
> propose few things here:
>
> 1) Nagesh/Supriya, please provide review comments to Vijay on his
> design,
> 2) Vijay can go ahead in writing those tests that he has proposed. You
> can review his patches then,
> 3) You can propose what additional tests needs to be done. And you can
> write those additional tests.
>
> With this we can perhaps avoid duplication of effort. What do you say ?
>
> I also found a sample test case for move_pages() on the net:
>
https://gforge.inria.fr/plugins/scmsvn/viewcvs.php/trunk/marcel/examples/nouma/simple/test_move_pages.c?rev=18613&root=pm2&view=markup
,
>
> Regards--
> Subrata
>
> >
> > BTW, I am planning to do the testing using numa=fake, hope
> > that should suffice.
> >
> > Test 1: Test retrieval of NUMA node
> >
> > 1. Allocate pages in NUMA nodes A and B
> > 2. Use move_pages() to retrieve the NUMA node of the pages.
> > 3. Check if the NUMA nodes reported are correct.
> >
> > Test 2: Test movement of pages mapped by a process
> >
> > 1. Allocate pages in NUMA node A.
> > 2. Use move_pages() to move the pages to NUMA node B.
> > 3. Retrieve the NUMA nodes of the moved pages.
> > 4. Check if all pages are in node B.
> >
> > Test 3: Test movement of shared pages
> >
> > 1. Start the test case program as root.
> > 2. Allocate a shared memory in NUMA node A.
> > 3. Fork another process.
> > 4. Use move_pages() to move the pages to NUMA node B, with the
> > MPOL_MF_MOVE_ALL.
> > 5. Check if all pages are in node B.
> >
> > Test 4: Failure when page address is invalid
> >
> > 1. Pass an invalid pointer as one of the page addresses to
move_pages().
> > 2. Check if the corresponding status is set to -EFAULT.
> >
> > Test 5: Failure when page is mlocked
> >
> > 1. Pass a pointer to a mlocked page to move_pages().
> > 2. Check if the corresponding status is set to -EPERM.
> >
> > Test 6: Failure when shared page is moved without MPOL_MF_MOVE_ALL
> >
> > 1. Start test case program as root.
> > 2. Allocate a shared memory page.
> > 3. Fork another process.
> > 4. Pass a pointer to a shared page to move_pages(), without
> > the MPOL_MF_MOVE_ALL flag.
> > 5. Check if the corresponding status is set to -EACCES.
> >
> > Test 7: Failure when the NUMA node is invalid
> >
> > 1. Pass a non-existent NUMA node number to move_pages().
> > 2. Check if errno is set to ENODEV.
> >
> > Test 8: Failure when the PID is invalid
> >
> > 1. Pass a non-existent PID to move_pages().
> > 2. Check if errno is set to ESRCH.
> >
> > Test 9: Failure when the no. of pages is ULONG_MAX
> >
> > 1. Pass ULONG_MAX pages to move_pages().
> > 2. Check if errno is set to E2BIG.
> >
> > Test 10: Failure when all pages are in required NUMA node
> >
> > 1. Pass the actual NUMA node number for each page to move_pages().
> > 2. Check if errno is set to ENOENT.
> >
> > Test 11: Failure when flags is invalid
> >
> > 1. Pass invalid flags to move_pages().
> > 2. Check if errno is set to EINVAL.
> >
> > Test 12: Failure when trying move shared pages
> >
> > 1. Allocate a shared memory in NUMA node A.
> > 2. Fork another process.
> > 3. Use move_pages() to move the pages to NUMA node B, with the
> > MPOL_MF_MOVE_ALL.
> > 4. Check if errno is set to EPERM.
> >
> > TODO:
> >
> > * Test case for errno = EACCES.
> > * Test case for errno = EINVAL, due to page being in a kernel thread.
> > * Test case for status[] = ENOENT.
> > * Test case for status[] = EBUSY.
> >
> > Regards,
> > Vijay
> >
> >
> >
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