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(Updated Nov. 29, 2016, 4:15 p.m.) Review request for mesos, James Peach, Michael Park, and Neil Conway. Bugs: MESOS-6229 https://issues.apache.org/jira/browse/MESOS-6229 Repository: mesos Description (updated) ------- Add hardened flags for Mesos. Take compile flag macro at 391cb680171d3889965b1ead43d3a326c913bc25. The macro at 1a869696e4129279f7b99c3f9052717354b79a86 requires autoconf 2.64 which breaks on CentOS 6. Diffs ----- configure.ac 5380cbc m4/ax_check_compile_flag.m4 PRE-CREATION src/Makefile.am 85eda53 Diff: https://reviews.apache.org/r/52645/diff/ Testing ------- Compared the benchmarks with and without the flags being used. Also did a comparsion with the flags being used with and without optimizations and without the flags being used with and without optimizations. Overall the performance hit was very small with a 3-8% overhead (optimizations brings this down slightly). Most benchmarks were about 5% (or less) slower. Thanks, Aaron Wood