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(Updated Sept. 28, 2018, 11:09 p.m.) Review request for mesos, Gilbert Song, Greg Mann, and Vinod Kone. Bugs: MESOS-9279 https://issues.apache.org/jira/browse/MESOS-9279 Repository: mesos Description ------- Since the cgroup hierarchy results won't change, it does not make sense to compute it every time `usage` is called. It will get quite expensivie when the host mount table is big (e.g., MESOS-8418). This patch uses the static local variable to cache the result. Diffs ----- src/slave/containerizer/docker.cpp 277a1550e199097ebc3c47d0a6c0d258bac90da5 Diff: https://reviews.apache.org/r/68880/diff/1/ Testing ------- sudo make check Thanks, Jie Yu