Andrew Kryczka 9a83fd21e6 stagger first DumpMallocStats after opening DB (#7145)
Summary:
Previously when running `db_bench` with large value for `num_multi_dbs` and enabled `Options::dump_malloc_stats`, we would see most CPU spent in jemalloc locking. After this PR that no longer shows up at the top of the profile.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7145

Reviewed By: riversand963

Differential Revision: D22593031

Pulled By: ajkr

fbshipit-source-id: 3b3fc91f93249c6afee53f59f34c487c3fc5add6
2020-07-17 16:13:26 -07:00
..