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Record W2592247214

String deduplication during garbage collection in virtual machines

2016· article· en· W2592247214 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueComputer Science and Software Engineering · 2016
Typearticle
Languageen
FieldComputer Science
TopicDistributed systems and fault tolerance
Canadian institutionsIBM (Canada)University of New Brunswick
Fundersnot available
KeywordsGarbage collectionManual memory managementComputer scienceMemory leakGarbageHeap (data structure)CopyingMemory managementData deduplicationOperating systemJavaVirtual machineDatabaseVirtual memoryStorage managementPython (programming language)Programming language
DOInot available

Abstract

fetched live from OpenAlex

Memory management is a significant topic in virtual machine research. As allocation and deallocation of objects is performed automatically, garbage collection (GC) has become an important field of research. It aims to speed up and optimize the execution of applications developed in languages such as Java, C#, Python and others. Even though GC techniques have become more sophisticated, automatic memory management is not optimal. Garbage collection techniques, such as reference counting, mark-sweep, mark-compact, copying collection and generational garbage collection build the base of most automated memory management environments. Most GC policies include a stop-the-world phase that is used to detect live objects.The research presented in this paper aims to improve the automatic memory management and application execution by investigating an optimization of the memory layout. The goal of the approach described is to utilize the stop-the-world phase of the garbage collector in order to detect duplicate strings and to deduplicate them before copying them to a different region. The goal of this algorithm is to reduce memory duplication, as well as copying of memory, in order to decrease the heap size and therefore the number of garbage collections required to execute the client application.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.833
Threshold uncertainty score0.398

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.004
GPT teacher head0.191
Teacher spread0.186 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it