Review Request 36605: Cleaned up 'perf' related tests to work on Ubuntu 14.04.

[Benjamin Hindman]

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Review request for mesos, Ian Downes and Timothy Chen.


Bugs: MESOS-3079
    https://issues.apache.org/jira/browse/MESOS-3079


Repository: mesos


Description
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See summary.


Diffs
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  src/tests/cgroups_tests.cpp ac431beb04598d257aa98bef52a991585fe7f1ab 
  src/tests/perf_tests.cpp 281eed0094faead67dc7f84df6407686aae88b01 

Diff: https://reviews.apache.org/r/36605/diff/


Testing
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make check


Thanks,

Benjamin Hindman