java:gc

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--- java:gc [2018/03/14 08:44]
kwon37xi
+++ java:gc [2022/03/03 10:11] (현재)
kwon37xi
@@ 줄 1: / 줄 1: @@
 ====== Java Garbage Collection ======
   * [[java:g1gc|G1 GC]]
+  * **GC 옵션은 어떤 상황에서든 명시적으로 지정하는게 좋다.**
+    * 메모리가 ''1792mb'' 이하이면 Serial GC로 기본 지정된다. 이는 심각한 성능저하를 일으킨다.
+    * https://twitter.com/brunoborges/status/1499114848516329472?s=20&t=MA20XuqUuG50dnOvqXIXqw
+===== 공식문서 =====
+  * [[https://docs.oracle.com/en/java/javase/11/gctuning/introduction-garbage-collection-tuning.html|Java 11 GC Tuning]]
+  * [[https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/|Java 8 GC Tuning]]
+===== 참조 =====
+  * [[https://johngrib.github.io/wiki/java-gc-tuning/|Java GC 튜닝 - 기계인간 John Grib]]
   * [[http://www.oracle.com/technetwork/java/javase/gc-tuning-6-140523.html|Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning]]
   * [[http://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/index.html|Java 8 GC Tuning]]
@@ 줄 18: / 줄 30: @@
   * [[http://www.poalsoft.com/blog/?p=34|JVM Tuning – Garbage Collection]]
   * [[http://gceasy.io/|GC Easy]] Web GC Log Analyzer
+  * [[https://d2.naver.com/helloworld/37111|Garbage Collection 튜닝]]
+  * [[https://www.baeldung.com/java-verbose-gc|Verbose Garbage Collection in Java | Baeldung]]
+  * [[https://www.javacodegeeks.com/2017/11/minimize-java-memory-usage-right-garbage-collector.html|Minimize Java Memory Usage with the Right Garbage Collector]]
+  * [[https://jelastic.com/blog/java-ram-usage-in-containers-top-5-tips-not-to-lose-your-memory/|Java RAM Usage in Containers: 5 Tips Not to Lose Memory]]
+  * [[https://jelastic.com/blog/stop-overpaying-for-java-cloud-hosting-resources/|5 Steps to Stop Overpaying for Java Cloud Hosting Resources]]
 ===== GC Log=====
@@ 줄 36: / 줄 53: @@
   * ''-XX:+HeapDumpOnOutOfMemoryError''
   * ''-XX:HeapDumpPath=<path>''
+    * ''-XX:-TraceClassUnloading -XX:-TraceClassLoading'' : class loading/unloading 로깅
   * [[https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPJMETER|HPJMeter]] ''verbose:gc''결과 분석
     * gc 로그에 ''PrintGCDateStamps'' 이 옵션으로 인한 날짜 정보가 있으면 날짜 관련 부분을 지워야한다.
@@ 줄 43: / 줄 61: @@
   * [[http://fasterj.com/tools/gcloganalysers.shtml|Garbage Collector Log Analysers]]
   * [[https://dzone.com/articles/understanding-g1-gc-log-format|Understanding G1 GC Log Format]]
+  * [[https://github.com/microsoft/gctoolkit|microsoft/gctoolkit: Tool for parsing GC logs]]
 ===== GC Log Rotate - Java 6 u34 이상, Java 7 =====
   * [[http://jyates.github.io/2012/11/05/rolling-java-gc-logs.html|Rolling Java GC Logs]]
@@ 줄 53: / 줄 74: @@
  -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=128K
 </code>
+===== Microsoft GC Toolkit =====
+  * [[https://devblogs.microsoft.com/java/introducing-microsoft-gctoolkit/|Introducing Microsoft GCToolkit | Java at Microsoft]]

java/gc.1520986449.txt.gz · 마지막으로 수정됨: 2018/03/14 08:44 저자 kwon37xi