KVStore: Reduce lock contention in RegionPersister::doPersist (ping…

…cap#8593) close pingcap#8583
ti-chi-bot · Dec 26, 2023 · 1bf4654 · 1bf4654
1 parent d158474
commit 1bf4654
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diff --git a/dbms/src/Storages/Transaction/RegionPersister.cpp b/dbms/src/Storages/Transaction/RegionPersister.cpp
@@ -106,8 +106,6 @@ void RegionPersister::doPersist(RegionCacheWriteElement & region_write_buffer, c
 {
     auto & [region_id, buffer, region_size, applied_index] = region_write_buffer;
 
-    std::lock_guard lock(mutex);
-
     if (page_reader)
     {
         auto entry = page_reader->getPageEntry(region_id);

diff --git a/dbms/src/Storages/Transaction/RegionPersister.h b/dbms/src/Storages/Transaction/RegionPersister.h
@@ -81,7 +81,6 @@ class RegionPersister final : private boost::noncopyable
 
     NamespaceId ns_id = KVSTORE_NAMESPACE_ID;
     const RegionManager & region_manager;
-    std::mutex mutex;
     LoggerPtr log;
 };
 } // namespace DB