> On April 8, 2015, 6:44 p.m., Ian Downes wrote:
> > src/tests/memory_test_helper.hpp, lines 69-70
> > <https://reviews.apache.org/r/32756/diff/1/?file=913065#file913065line69>
> >
> >     How does this tie into the timing loop above in the test? Do we know 
> > within what time the kernel will mark pages inactive?

see my comment above


> On April 8, 2015, 6:44 p.m., Ian Downes wrote:
> > src/tests/cgroups_tests.cpp, line 1357
> > <https://reviews.apache.org/r/32756/diff/1/?file=913064#file913064line1357>
> >
> >     Is it a problem of keeping up, or just that it's an asychronous process 
> > that periodically/as required marks pages?

Did more reading and experiments.

The kernel demotes the pages to inactive after some timeout time.

But I am writing these pages in a loop, which should be able to beat the 
timeout.

I get a constant stream of 15724544 bytes (14.996MB) printed out from the loop. 
The fact that the value doesn't change suggests it is not influenced by the 
timeout too.

I don't quite get where the fixed %0.02 error is from


- Chi


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On June 3, 2015, 11:01 p.m., Chi Zhang wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/32756/
> -----------------------------------------------------------
> 
> (Updated June 3, 2015, 11:01 p.m.)
> 
> 
> Review request for mesos, Ian Downes and Jie Yu.
> 
> 
> Bugs: mesos-2572
>     https://issues.apache.org/jira/browse/mesos-2572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Added a memory statistics test for active anonymous memory.
> 
> 
> Diffs
> -----
> 
>   src/tests/cgroups_tests.cpp 475f48a474eea708f98d8c0300862351a2d4379a 
>   src/tests/memory_test_helper.hpp 11712d7f378d9426f160d53b0387c698a28a4207 
>   src/tests/memory_test_helper.cpp 8093e66c45cacc4bf0295a3448c128a1aa7c751a 
> 
> Diff: https://reviews.apache.org/r/32756/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Chi Zhang
> 
>

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