Top Questions

1. Is clflush or clflushopt atomic when system crash？
   5 votes

   2 answers
2. On x86-64, is the “movnti” or "movntdq" instruction atomic when system crash?
   5 votes

   1 answers
3. Why “movnti” followed by an “sfence” guarantees persistent ordering？
   3 votes

   1 answers
4. Does B+-tree have any advantages for an in-memory database compared to Hash if no range query is needed?
   2 votes

   1 answers