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A TIB (Type Information Block) in Jikes included in an object header. ... the local variable array at index n. The. objectref is pushed on to the stack. In ...

Major java features ... t1 = new java.lang.Object. return t1 ... Cache performance in JVM. What missed: Java Memory Management, Jikes specific optimization. ...

Identifying Candidates (1/2) T q = new T() T.field = p or p = T.field ... against Jikes RVM on how many candidates found/replaced and how long it takes ...

Sergiy Kyrylkov, University of New Mexico. Darko Stefanovic, University ... int beg = VM.objectAsAddress(instructions); private static int obsoleteMethodCount; ...

mc.addInstruction(mi); Porting Baseline Compiler. New methods in VM_Assembler ... Pure 64-bit implementation of 'magic' in baseline-compiler-like style ...

Michael Hind. 1. MRTE'03, March 23, 2003. Using Jikes RVM to Understand the ... Michael Hind. Manager, Dynamic Optimization Group. Joint work with ...

Implementation based on Jikes RVM. All analyses done in JIT* time ... In this study, we compare 4 algorithms: Connectivity Analysis (Pensieve) ...

Strata-SPARC. Binary ... level on JIT'ed code. x86 CISC architecture & Linux ... Strata-SPARC Instrumentation Probe Overhead. Jikes/x86 Instrumentation ...

Brian D. Carlstrom, Austen McDonald, Michael Carbin. Christos Kozyrakis, ... Transactional versions of Map, ... on Jikes RVM 2.4.2 CVS. GNU Classpath 0.19 ...

KJC/Kopi and IBM Jikes: open source full (-) java compilers and VM written in java/C ... Microsoft Rotor edu' C# compiler and .NET runtime written in C# (complex ...

Automatic Heap Sizing: Taking Real Memory into Account Ting Yang, Emery Berger, Matthew Hertz, Scott Kaplan , Eliot Moss Department of Computer Science ...

Aspectual Framework for Adaptive Garbage Collection ... Jess ... SPEC JVM98 Jess Results. Jess Garbage Collection Count. Jess Results. SPEC JVM98 Db Results ...

Feedback-directed systems provide information to a compiler regarding program behaviour ... [BDB99] Vasanth Bala, Evelyn Duesterwald, and Sanjeev Banerjia. ...

Mark-Compact Sweep Garbage Collection & Automatic Heap Resizing: A Valuable ... What combination of heap size and garbage collection will increase performance? ...

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Title: Class-Directed Memory Management Subject: garbage collection Author: Emery Berger Last modified by: Emery Berger Created Date: 2/24/2000 4:19:41 AM

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University of New Mexico. Computer Science. April 14, 2004. Overview ... Breadth is trivially optimized by putting all files in one module ...

Automatic Heap Sizing Ting ... overhead Good linear fit Modeling Cooperative GC ... Currently implementing VMM in Linux Useful for ...

Correcting the Dynamic Call Graph Using Control Flow Constraints Byeongcheol (BK) Lee Kevin Resnick Michael Bond Kathryn McKinley UT Austin

Dimension: An Instrumentation Tool for Virtual Execution Environments ... Easy-of-Use easy user model to write instrumentation specification ...

Andy Podgurski, David Leon, Patrick Francis, Wes Masri, Melinda Minch, Jiayang Sun, Bin Wang ... Tarantula [Jones, et al] Delta debugging [Hildebrand & Zeller] ...

Mis-expression of Eyeless cDNA caused extra eyes to form on wings, legs, and ... Limited pleiotropic and epistatic influence on other modules ...

Exploring Multi-Threaded Java Application Performance on Multicore Hardware Exploring Multi-Threaded Java Application Performance on Multicore Hardware

Changes to the implementation of an abstraction. ... Serialisation. P. II. P. II. 8. Current Progress. Proof of concept. Compliance at the application level ...

Reverse Engineering of Design Patterns from Java Source Code UC DAVIS Nija Shi shini@cs.ucdavis.edu Ron Olsson olsson@cs.ucdavis.edu Outline Design patterns vs ...

JikesRVM Dept of Computer & Information Sciences University of Delaware

peephole. 21. What's in a. Dynamic Compiler? 22. What's in a ... peephole. Still needs good core compiler - but more. 28. Raw Profile Data. Instrumented code ...

Yes: easy to distinguish in CRAMM (on separate list) Available Memory ... Experiments: Overhead w/o memory pressure. Dynamic memory pressure ...

Title: Calvin & Kathryn s Wonderful Group Author: CSCF Last modified by: Kathryn Mckinely Created Date: 9/27/2001 8:35:48 PM Document presentation format

Runtime overhead of collecting information from the CPU low ... Update at recompilation, GC. Identify 100% of instructions (PCs) ...

A design pattern offers guidelines on when, how, and why ... Star Office Calc, Writer. test programs. Leda, libg , socket, galib, groff, mec. SuperOffice CRM ...

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In most software projects, we don't have access to traits (features) ... Study SECO using simpler models, in anticipation of applying results to real code ...

An Adaptive, Region-based Allocator for Java Feng Qian, Laurie Hendren {fqian, hendren}@cs.mcgill.ca Sable Research Group School of Computer Science

inc/dec operations placed in buffer. Objects allocated with RC=1, dec enqueued ... cyclic garbage is in cycle buffer; collected unless race. Details in ECOOP' ...

Complexity of large object oriented programs. Decompose the ... Use overlap accuracy [Arnold & Grove '05] Overhead. 1st iteration includes call graph correction ...

Space- and Time-Efficient. Implementation of the Java. Object Model ... Object clone(); boolean equals(); void finalize(); Object. class. Class. hash. lock. VMLock ...

Probabilistic Calling Context Michael D. Bond Kathryn S. McKinley University of Texas at Austin

Chi-Leung Wong, Zehra Sura, Xing Fang, Kyungwoo Lee, Samuel P. Midkiff, Jaejin ... Experimental Settings (Machine) Intel (Dell PowerEdge 6600 SMP) ...

Garbage Collection Without Paging Matthew Hertz, Yi Feng, Emery Berger University of Massachusetts Amherst

Mismatch between AOP language and execution ... STATICS. All the methods. ALL. Method. Any instance(s) matching. Regexp for a name ... STATICS && CONTRUCTORS ...

A Real-Time Garbage Collector with Low Overhead and Consistent Utilization David F. Bacon, Perry Cheng, and V.T. Rajan IBM T.J. Watson Research Center

Configuration Item, Baseline, SCM Directory, Version, Revision Release. ... A change request leads to the creation of a new release. General change process ...

Erste Programme mit Java Grundelemente von Java Entwicklung von GUI-Anwendungen mit dem Java-Editor bungen Helmut Paulus Speyer, 08.05.09 Teil 1 Grundelemente von ...

Single heap pass, small space overhead. ... The first compactor that passes over the heap only once. Plus one pass over the mark-bits vector. ...

Process: 1. Identify critical behaviors that may not change ... Adaptive System. Future Work. Extend prototype system to include more program transformations ...

is laughing out loud ' how '!'); Example of a Shadow (1). A shadow in code is a very ... Fabian is laughing out loud nicely! Andreas says: 'Knock, knock ...

Michael Bond Kathryn McKinley The University of Texas at Austin

inheriting its caller's region. New regions are freed before exiting. Escaping Objects ... Requiring all such methods to inherit caller's region. Allocation Sites ...

Bell: Bit-Encoding Online Memory Leak Detection Michael D. Bond Kathryn S. McKinley University of Texas at Austin

1. Jeannie: Granting Java Native Interface Developers their Wishes ... Operating systems: Mac OS X, Linux, Cygwin. 15. Efficiency: JNI vs. Jeannie. 1. 16 ...

Motivation is peer recognition and personal satisfaction, not money. ... quick & dirty way to add new functionality, esp. if system is not well understood ...

Eql obj sharing, Const field elide, Bit-width reduction. Appel & Goncalves. Tech Report 93 ... Dom value field elide. Chen, Kandemir & Irwin. VEE 05. Dom value ...

jack.display(); // Jack looks like a chrysalis. 10/4/09. Marc Conrad University of Bedfordshire ... Shadow Chrysalis Shadow Caterpillar Shadow Butterfly ...