Memory
Reading a GC Log Line by Line
One run, one quantity, three answers. The allocation rate everyone derives from the default GC log is ten per cent low, and the log says why if you ask it correctly.
Topic
gc
Articles on “gc”
Memory
G1 versus ZGC: What the Pause Numbers Hide
Sub-millisecond pauses are real, and they are not the whole cost. What the two collectors actually trade, and which numbers to compare instead.
Runtime
Escape Analysis and the Allocation That Never Happened
C2 can delete an object entirely by proving it never escapes. Here is when that works, when it silently stops, and how to measure the difference.