Inventor

GARTHWAITE ALEXANDER T

US71 patents

⚠️ This page may combine multiple inventors who share the name “GARTHWAITE ALEXANDER T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GARTHWAITE ALEXANDER T

SUN MICROSYSTEMS INC

Specializing write-barriers for objects in a garbage collected heap

Local allocation buffers for parallel garbage collection

Reference-updating using per-chunk referenced-address ranges in a compacting garbage collector

Deferring and combining write barriers for a garbage-collected heap

Binned remembered sets

Methods and apparatus for performing a memory management technique

Lock-free implementation of concurrent shared object with dynamic node allocation and distinguishing pointer value

Methods and apparatus for executing code while avoiding interference

Train-algorithm-based garbage collector employing fixed-size remembered sets

Concurrent shared object implemented using a linked-list with amortized node allocation

Dynamic adaptive tenuring of objects

Incremental class unloading in a train-algorithm-based garbage collector

Scalable-remembered-set garbage collection

Train-algorithm-based garbage collector employing reduced oversized-object threshold

Train-algorithm-based garbage collector employing farthest-forward-car indicator

Scanning of evacuated objects in a generation managed by the train algorithm

Use of memory protection to implement replicating collection in an incremental, copying garbage collector

Using class properties to segregate objects in a generation managed by the train algorithm

Parallel remembered-set processing respecting popular-object detection

Two-pass sliding compaction

Methods and apparatus for providing a remote serialization guarantee

Offset-based forward address calculation in a sliding-compaction garbage collector

Concurrent incremental garbage collector with a card table summarizing modified reference locations

Garbage-first garbage collection

Combining write-barriers within an inner loop with fixed step

Detection of dead regions during incremental collection

Dynamic feedback for determining collection-set size

Space-efficient, depth-first parallel copying collection technique making use of work—stealing on the same structures that maintain the stack of items to be scanned

Efficient collocation of evacuated objects in a copying garbage collector using variably filled local allocation buffers

Collection-tick mechanism for a collector based on the train algorithm

Incremental scanning of enormous objects to improve scheduling and pause-time behavior of garbage collection

Scalable, space-efficient, parallel remembered-sets

Placement of allocation trains in the train algorithm

Combining external and intragenerational reference-processing in a garbage collector based on the train algorithm

Reduced-cost remembered-set processing in a train-algorithm-based garbage collector

Popular-object handling in a train-algorithm-based garbage collector

Multi-threaded garbage collector employing cascaded memory arrays of task identifiers to implement work stealing queues for task identification and processing

Object sampling technique for runtime observations of representative instances thereof

Method and mechanism for finding references in a card in time linear in the size of the card in a garbage-collected heap

Split-reference, two-pass mark-compaction

Coarse write barrier control mechanism

Method and apparatus for recording modified reference locations in garbage-collected heap memory

Maintaining a double-ended queue in a contiguous array with concurrent non-blocking insert and remove operations using a double compare-and-swap primitive

Better placement of dying objects in a generation managed by the train algorithm

Method and apparatus for forwarding references to objects concurrently with space-incremental garbage collection

Method and apparatus for isolating selected heap objects using a faulting address trap

Avoiding remembered-set maintenance overhead for memory segments known to be in a collection set

Merging trains in a collector based on the train algorithm

Better placement of objects reachable from outside a generation managed by the train algorithm

ORACLE AMERICA INC

Barrier synchronization method and apparatus for work-stealing threads