• Maysam Yabandeh's avatar
    WritePrepared Txn: Lock-free CommitMap · 09713a64
    Maysam Yabandeh authored
    We had two proposals for lock-free commit maps. This patch implements the latter one that was simpler. We can later experiment with both proposals.
    In this impl each entry is an std::atomic of uint64_t, which are accessed via memory_order_acquire/release. In x86_64 arch this is compiled to simple reads and writes from memory.
    Closes https://github.com/facebook/rocksdb/pull/2861
    Differential Revision: D5800724
    Pulled By: maysamyabandeh
    fbshipit-source-id: 41abae9a4a5df050a8eb696c43de11c2770afdda