1. JVM
PROFILING
Michał Warecki
michal.warecki@gmail.com
michalwarecki.blogspot.com
Jakub Kubrynski
jkubrynski@gmail.com
www.kubrynski.com

2. WHO
WE
ARE?

3. WHY?

4. -
wprowadzenie
*nix tools
JDK tools
VisualVM
JMC
Disassembler + JIT
JProfiler
GC tuning

5. ANATOMY
------------------------------------------APPLICATION
SYSTEM LIBRARIES
SYSTEM CALLS
KERNEL
HARDWARE
BOTTOM-UP
JVM
TOP-DOWN
FRAMEWORKS

7. MEMORY MEMORIES
------------------------------------------EDEN
SURVIV. SURVIV.
FROM
TO
YOUNG GENERATION
HEAP
TENURED
PERM
GEN
CODE
CACHE
CALL
STACK
OLD
GEN
METHOD
AREA
NATIVE
AREA
NON-HEAP

8. t
u
yo
la
ct
je
b
o

9. GC
ROOTS

10. - shallow
- deep
- retained

11. SIZE MATTERS
------------------------------------------Obj 3
GC
root
Obj 4
Obj 1
Obj 2

12. -
NEW
RUNNABLE
BLOCKED
WAITING
TIMED_WAITING
TERMINATED