Inventor

MCKENNEY PAUL E

US136 patents

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

MCKENNEY PAUL E

IBM

Read-copy-update (RCU) operations with reduced memory barrier usage

Realtime-safe read copy update with lock-free readers

Efficient support of consistent cyclic search with read-copy-update

Adaptive reader-writer lock

Adapting RCU for real-time operating system usage

Efficiently boosting priority of read-copy update readers in a real-time data processing system

Realtime-safe read copy update with per-processor read/write locks

Realtime-safe read copy update with per-processor read/write locks

Realtime-safe read copy update with lock-free readers

Read-copy-update (RCU) operations with reduced memory barrier usage

Adapting RCU for real-time operating system usage

Software implementation of synchronous memory barriers

High speed methods for maintaining a summary of thread activity for multiprocessor computer systems

Apparatus and method for achieving reduced overhead mutual exclusion and maintaining coherency in a multiprocessor system utilizing execution history and thread monitoring

Optimizing grace period detection for preemptible read-copy update on uniprocessor systems

Read-copy update grace period detection without atomic instructions that gracefully handles large numbers of processors

Read-copy update method

Memory allocator for a multiprocessor computer system

Read-copy update grace period detection without atomic instructions that gracefully handles large numbers of processors

Efficient support of consistent cyclic search with read-copy-update

Adaptive reader-writer lock

Lingering locks with fairness control for multi-node computer systems

User specifiable allocation of memory for processes in a multiprocessor computer having a non-uniform memory architecture

Performance of RCU-based searches and updates of cyclic data structures

User-level read-copy update that does not require disabling preemption or signal handling

Read-copy-update (RCU) operations with reduced memory barrier usage

Utilizing hardware transactional approach to execute code after initially utilizing software locking by employing pseudo-transactions

Reader-writer lock for multiprocessor systems

Highly scalable tree-based trylock

Motivating lazy RCU callbacks under out-of-memory conditions

In-kernel SRCU implementation with reduced OS jitter

Optimizing preemptible read-copy update for low-power usage by avoiding unnecessary wakeups

High speed counters

Atomic renaming and moving of data files while permitting lock-free look-ups

Efficient support of consistent cyclic search with read-copy update and parallel updates

MCKENNEY PAUL E

Expedited module unloading for kernel modules that execute read-copy update callback processing code

Cluster-wide read-copy update system and method

Asynchronous grace-period primitives for user-space applications

Read-copy update implementation for non-cache-coherent systems

Resolving RCU-scheduler deadlocks

Energy efficient implementation of read-copy update for light workloads running on systems with many processors

Fast path for grace-period detection for read-copy update system

Effective management of blocked-tasks in preemptible read-copy update

Efficiently boosting priority of read-copy update readers while resolving races with exiting and unlocking processes

Making read-copy update free-running grace period counters safe against lengthy low power state sojourns

High performance real-time read-copy update

Optimized deletion and insertion for high-performance resizable RCU-protected hash tables

SEQUENT COMPUTER SYSTEMS INC

Apparatus and method for achieving reduced overhead mutual-exclusion and maintaining coherency in a multiprocessor system utilizing execution history and thread monitoring

Method for maintaining data coherency using thread activity summaries in a multicomputer system

Apparatus and method for achieving reduced overhead mutual exclusion and maintaining coherency in a multiprocessor system utilizing execution history and thread monitoring