Re: [PR] [improvement](memory) Storage page cache use LRU-K cache, K=2 [doris]

[via GitHub]

xinyiZzz commented on code in PR #45719:
URL: https://github.com/apache/doris/pull/45719#discussion_r1895725719


##########
be/src/olap/lru_cache.cpp:
##########
@@ -476,14 +545,15 @@ void LRUCache::erase(const CacheKey& key, uint32_t hash) {
         e = _table.remove(key, hash);
         if (e != nullptr) {
             last_ref = _unref(e);
-            if (last_ref) {

Review Comment:
   这里，等最后一个持有entry的 handle release 的时候
   
![image](https://github.com/user-attachments/assets/619e53e0-fd52-420d-a3bc-ef81b7c860e6)
   



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