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src/linux/perf.cpp <https://reviews.apache.org/r/21443/#comment80439> const? src/linux/perf.cpp <https://reviews.apache.org/r/21443/#comment80444> i still think an empty string is a bit weird. you didn't want to use something like "__pids__" because a cgroup can have that name? Mesos conainerizer uses UUIDs so it shouldn't be a problem, but I guess EC can create arbitrary cgroup names? can a cgroup name be ""? either way, extract this into a constant (PIDS_KEY?). src/linux/perf.cpp <https://reviews.apache.org/r/21443/#comment80440> const? - Vinod Kone On June 12, 2014, 9:51 p.m., Ian Downes wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/21443/ > ----------------------------------------------------------- > > (Updated June 12, 2014, 9:51 p.m.) > > > Review request for mesos and Vinod Kone. > > > Bugs: MESOS-1278 > https://issues.apache.org/jira/browse/MESOS-1278 > > > Repository: mesos-git > > > Description > ------- > > Perf can be run against either a set of pids or a perf_event cgroup. > > I decided to parse the perf output into the protobuf directly, rather than > via JSON, because it was simpler to handle output like <not supported> and > <not counted>. Plus JSON's floating point numbers cannot fully represent > uint64. > > > Diffs > ----- > > src/Makefile.am 4a3f2e12643a1f02284587ebcbe9374f416b3d60 > src/linux/perf.hpp PRE-CREATION > src/linux/perf.cpp PRE-CREATION > src/tests/cgroups_tests.cpp 5f674cd678e67f10bfef4620d927bb5af7c93753 > src/tests/perf_tests.cpp PRE-CREATION > > Diff: https://reviews.apache.org/r/21443/diff/ > > > Testing > ------- > > Added tests for pids and cgroups. > > > Thanks, > > Ian Downes > >
