Post #12981 99 Jan 14, 2026, 18:29 UTC How a 40-Line Fix Eliminated a 400x Performance Gaphttps://questdb.com/blog/jvm-current-thread-user-time/https://redd.it/1qcjd0w@programmingreddit QuestDB How a 40-Line Fix Eliminated a 400x Performance Gap | QuestDB How a 40-line OpenJDK fix swapped slow /proc parsing for a single clock_gettime syscall, closing a 400x thread CPU-time gap hidden for 20 years.