PingTimeout.fr: Hotspot JVM Options - The complete reference
samedi 12 mai 2012 Hotspot JVM Options - The complete reference Tweet Last week, I was looking for a complete list of the Java Hotspot JVM options. Problem : the information you may find on the web will mostly be related to -Xmx or -XX:MaxPermSize, and this is typically what I was not looking for :). I found the Oracle Hotspot page where about 90 options are described, but I was not happy with it
GitHub - davidar/lljvm: Low Level Java Virtual Machine
LLJVM provides a set of tools and libraries for running comparatively low level languages (such as C) on the JVM. The C to JVM bytecode compilation provided by LLJVM involves several steps. Source code is first compiled to LLVM intermediate representation (IR) by a frontend such as llvm-gcc or clang. LLVM IR is then translated to Jasmin assembly code, linked against other Java classes, and then as
Java GC, HotSpot's CMS promotion buffers
Recently, I have unfairly blamed promotion local allocation buffers (PLAB) for fragmentation of old space using concurrent mark sweep garbage collector. I was very wrong. In this article, I'm going to explain how PLABs really work with all details. PLAB stand for promotion local allocation buffer. PLABs are used during young collection. Young collection in CMS (and all other garbage collectors in
IBMã®WASã¯JVMã‚„GCã‚’ã©ã®ã‚ˆã†ã«æ‰±ã£ã¦ã„ã‚‹ã®ã‹ï¼Ÿ
IBMã®WASã¯JVMã‚„GCã‚’ã©ã®ã‚ˆã†ã«æ‰±ã£ã¦ã„ã‚‹ã®ã‹ï¼Ÿï¼šWebSphereサーãƒãƒ»ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°å…¥é–€ï¼ˆ3）（1/4 ページ） 本連載ã¯ã€Javaアプリケーション・サーãƒã®1ã¤ã§ã‚ã‚‹ã€IBM WebSphere Application Server（以下ã€WAS）ã«ã¤ã„ã¦ã®ãƒ‘フォーマンス・ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã«é–¢ã™ã‚‹å…¥é–€è¨˜äº‹ã§ã™ã€‚ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã¨ã„ã£ã¦ã‚‚ã€å®Ÿæ–½ã™ã‚‹ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã«ã‚ˆã£ã¦ã€ãã®æ–¹æ³•ã¯ç•°ãªã‚Šã¾ã™ãŒã€æœ¬é€£è¼‰ã¯WASã‚’å‰æã¨ã—ã€ã‹ã¤80ï¼…ã®ã‚±ãƒ¼ã‚¹ã‚’ã‚«ãƒãƒ¼ã™ã‚‹ã“ã¨ã‚’目標ã¨ã—ã¾ã™ï¼ˆç·¨é›†éƒ¨æ³¨ï¼šWASã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã‹ã‚‰å¦ã³ãŸã„èªè€…ã¯ã€ã€Œãƒãƒ¼ã‚¸ãƒ§ãƒ³åˆ¥ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ—マニュアル一覧ã€ã®WebSphere Application Serverã‚’å‚ç…§ã—ã¦ãã ã•ã„） å‰å›žã¯ã€WASパフォーマンス・ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®ä¸»è¦é …ç›®ã«ã¤ã„ã¦ç°¡å˜ãªèª¬æ˜Žã‚’ã—ã€ãƒ‘フォーマンス・ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®ä¸»è¦é …ç›®ã®1ã¤ã§ã‚る「トランスãƒãƒ¼ãƒˆãƒ»ãƒãƒ£ãƒãƒ«ãƒ»
Java HotSpot Garbage Collection
Introduction The Garbage-First (G1) garbage collector is fully supported in Oracle JDK 7 update 4 and later releases. The G1 collector is a server-style garbage collector, targeted for multi-processor machines with large memories. It meets garbage collection (GC) pause time goals with high probability, while achieving high throughput. Whole-heap operations, such as global marking, are performed co
Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning
1. Introduction The Javaâ„¢ Platform, Standard Edition (Java SEâ„¢) is used for a wide variety of applications, from small applets on desktops to web services on large servers. In support of this diverse range of deployments, the Java HotSpotâ„¢ virtual machine implementation (Java HotSpotâ„¢ VM) provides multiple garbage collectors, each designed to satisfy different requirements. This is an important pa
サービス終了ã®ãŠçŸ¥ã‚‰ã› - NAVER ã¾ã¨ã‚
サービス終了ã®ãŠçŸ¥ã‚‰ã› NAVERã¾ã¨ã‚ã¯2020å¹´9月30日をもã¡ã¾ã—ã¦ã‚µãƒ¼ãƒ“ス終了ã„ãŸã—ã¾ã—ãŸã€‚ ç´„11å¹´é–“ã€NAVERã¾ã¨ã‚ã‚’ã”利用・ã”愛顧ã„ãŸã ãèª ã«ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸã€‚
HBase HUG Presentation: Avoiding Full GCs with MemStore-Local Allocation Buffers
HBase HUG Presentation: Avoiding Full GCs with MemStore-Local Allocation Buffers Todd Lipcon presents a solution to avoid full garbage collections (GCs) in HBase by using MemStore-Local Allocation Buffers (MSLABs). The document outlines that write operations in HBase can cause fragmentation in the old generation heap, leading to long GC pauses. MSLABs address this by allocating each MemStore's dat
jvisualvmを使ã£ãŸCPUプãƒãƒ•ã‚¡ã‚¤ãƒªãƒ³ã‚° - Javaã§ç”»åƒãƒ“ューアを開発ã—ã¦ã¿ã‚‹æ—¥è¨˜
ã“ã“最近ã¯æ©Ÿèƒ½è¿½åŠ ã®é€²æ—ã—ã‹æ›¸ã„ã¦ã„ãªã‹ã£ãŸã®ã§ã€ä»Šå›žã¯ã€æŠ€è¡“çš„ãªã“ã¨ã‚‚å°‘ã—書ã„ã¦ã¿ãŸã„。ã¨ã„ã†ã“ã¨ã§ã€jvisualvmを利用ã—ãŸCPUプãƒãƒ•ã‚¡ã‚¤ãƒªãƒ³ã‚°ã®æ–¹æ³•ã‚’紹介ã—よã†ã€‚ jvisualvmã¨ã¯ã€JDKã«æ¨™æº–ã§ä»˜å±žã™ã‚‹ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ©ã *1。JavaVMã®ãƒ¡ãƒ¢ãƒªä½¿ç”¨é‡ã‚„ã€ã‚¹ãƒ¬ãƒƒãƒ‰ã®å‹•ä½œçŠ¶æ³ãªã©ã€åŸºæœ¬çš„ãªæƒ…å ±ã‚’ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã§å–å¾—ã€è¡¨ç¤ºã—ã¦ãれる。ã•ã£ããã€èµ·å‹•ã—ã¦ã¿ã‚‹ã€‚ jvisualvmã®èµ·å‹• 一番åˆã‚ã«ã€æ¸¬å®šå¯¾è±¡ã®Javaプãƒã‚°ãƒ©ãƒ ã‚’èµ·å‹•ã—ã¦ãŠã“ã†ã€‚起動を確èªã—ãŸã‚‰ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‚ˆã‚Šã€ã€Œjvisualvmã€ã¨æ‰“ã¡è¾¼ã‚€ã€‚ã™ã‚‹ã¨ã€jvisualvmãŒèµ·å‹•ã—ã¦ã€æ¬¡ã®ç”»é¢ãŒè¡¨ç¤ºã•ã‚Œã‚‹ã€‚ å·¦å´ã«ã¯ã€èµ·å‹•ä¸ã®JVMã®ä¸€è¦§ãŒè¡¨ç¤ºã•ã‚Œã‚‹ã€‚ã“ã“ã§ã¯ã€jvisualvm自身ã®vmã€é–‹ç™ºã«åˆ©ç”¨ã—ã¦ã„ã‚‹IDEã§ã‚ã‚‹NetBeans6.1ã€ãã—ã¦é–‹ç™ºä¸ã®ç”»åƒãƒ“ューアjgbãŒã‚ã‚‹ã“ã¨ãŒåˆ†ã‹ã‚‹ã€‚ã•ã£ããã€é–‹ç™ºä¸ã®ç”»
1
ランã‚ング
ランã‚ング
ランã‚ング
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
Java コードã‹ã‚‰ Java ヒープã¾ã§
Garbage Collection Bootcamp 1.0
https://developer.oracle.com/java/technologies/javase/gc-tuning-6.html
https://blogs.oracle.com/jonthecollector/what-the-hecks-a-concurrent-mode
Engineering – Foursquare – Medium
{{#tags}}- {{label}}
{{/tags}}