0ac0098705
Summary: Under MacOS when running with make -j 8 check, the temporary directory generated was > 100 characters. This caused the tests to do nothing under MacOS. Most of them still reported success for doing nothing, but ReadaheadSize was expecting the test to run. By making the option name longer, the tests will no run successfully (and do something!) Pull Request resolved: https://github.com/facebook/rocksdb/pull/6846 Reviewed By: ajkr Differential Revision: D21576032 fbshipit-source-id: b089cde0d598137b572aa8527cc5459085252af7