chouxi 818c84e116 Store timestamp in deadlock detection (#4060)
Summary:
- Summary
    Add timestamp into the DeadlockInfo to store the timestamp when deadlock detected on the rocksdb side.

- Testplan:
    `make check -j64`
Closes https://github.com/facebook/rocksdb/pull/4060

Differential Revision: D8655380

Pulled By: chouxi

fbshipit-source-id: f58e1aa5e09eb1d1eed0a181d4e2304aaf01efe8
2018-06-27 12:27:58 -07:00
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