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Futex: History, Overview & Operations

In computing, a futex (short for "fast userspace mutex") is a kernel system call that programmers can use to implement basic locking, or as a building block for higher-level locking abstractions such as semaphores and POSIX mutexes or condition variables.

Language: English [EN]
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Futex topic overview

The analysis highlights History, Overview and Operations as prominent areas in the source structure around Futex.

Related topics
31
Source areas
3
Connected nodes
34
Extracted relationships
38
Concept neighborhoods
25
Bridge connections
34

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 15 topics
Overview · 15 topics
Operations · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Operations

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Futex connects Entity context

The extracted context around Futex shows recurring relationship patterns in the source. For example, Futex → Bert Hubert, Drepper, Fast Userlevel Locking, Franke, Fuss, Futexes, Linux, Linux Kernel Documentation, Matthew Kirkwood, Molnar, Ottawa Linux Symposium, PDF, Priority Inheritance Futexes, Red Hat, Robust Futexes, Rusty Russell, Tricky, Ulrich, Unofficial Futex Another extracted example is Futex → December, Futexes, However, Hubertus Franke, IBM Linux Technology Center, IBM Thomas, In, Ingo Molnár, Linus Torvalds, Linux, Matthew Kirkwood, Red Hat, Rusty Russell, Watson Research Center. Use these groups to spot repeated connection types before inspecting the individual relationships.

Futex

Top relations

related to External links · 19
Futex → Bert Hubert, Drepper, Fast Userlevel Locking, Franke, Fuss, Futexes, Linux, Linux Kernel Documentation, Matthew Kirkwood, Molnar, Ottawa Linux Symposium, PDF, Priority Inheritance Futexes, Red Hat, Robust Futexes, Rusty Russell, Tricky, Ulrich, Unofficial Futex
related to history · 14
Futex → December, Futexes, However, Hubertus Franke, IBM Linux Technology Center, IBM Thomas, In, Ingo Molnár, Linus Torvalds, Linux, Matthew Kirkwood, Red Hat, Rusty Russell, Watson Research Center
related to Operations · 3
Futex → Futexes, WAIT, WAITandWAKE

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

linux system operations kernel futexes wait userspace since atomic fast integer processes one wake use queue calls locking red hat

Futex relationships Subject–Predicate–Object triples

TTTA extracted 38 structured relationships around Futex. Examples in this analysis include semaphores → instance of → or as a building block for higher-level locking abstractions and Futex → related to External links → Franke. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
semaphoresinstance ofor as a building block for higher-level locking abstractions0.80text
POSIX mutexes or condition variables.A futex consists of a kernel-space wait queue that is attached to an atomic integer in userspaceinstance ofor as a building block for higher-level locking abstractions0.80text
Futexrelated to External linksFranke0.60section
Futexrelated to External linksRusty Russell0.60section
Futexrelated to External linksMatthew Kirkwood0.60section
Futexrelated to External linksFuss0.60section
Futexrelated to External linksFast Userlevel Locking0.60section
Futexrelated to External linksLinux0.60section
Futexrelated to External linksOttawa Linux Symposium0.60section
Futexrelated to External linksDrepper0.60section
Futexrelated to External linksUlrich0.60section
Futexrelated to External linksFutexes0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Futex bring nearby vocabulary together. In this analysis, examples include System, Kernel and Ingo. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Futex
    • System
    • Kernel
    • Ingo
    • Kirkwood
    • Linux
    • Matthew
    • Rusty
    • Atomic
    • Implemented
    • One
    • Userspace
    • Since
  • futex
    • System
    • Kernel
    • Ingo
    • Kirkwood
    • Linux
    • Matthew
    • Rusty
    • Atomic
    • Implemented
    • One
    • Userspace
    • Since
  • system calls
    • Processes
    • Threads
    • Operations
    • Integer
    • Queue
    • Use
    • Calls
    • System
    • Fast
    • One
    • Userspace
    • Wake
  • fuchsia operating system
    • Calls
    • Processes
    • Use
    • One
    • Userspace
    • Wake
    • Operations
    • Since
    • Posix
    • Programmers
    • Semaphores
    • Threads
  • atomic operations
    • Integer
    • Queue
    • Wait
    • One
    • Userspace
    • Calls
    • Processes
    • Kernel-space
    • Threads
    • Wake
    • Fast
    • System
  • linux kernel mainline
    • Linux
    • Implement
    • First
    • Futexes
    • Red
    • Since
    • System
    • Mutex
    • Posix
    • Programmers
    • Semaphores
    • Ingo
  • operations
    • Calls
    • Processes
    • Wake
    • Wait
    • System
    • Threads
    • Franke
    • Hubertus
    • Ibm
    • Queue
    • Use
    • One
  • computing
    • Mutex
    • Posix
    • Programmers
    • Semaphores
    • Basic
    • Call
    • Implement
    • Locking
    • Use
    • Fast
    • Userspace
    • Kernel

Connections between topic areas Semantic bridges

For Futex, one of the stronger structural bridges in this analysis connects Futex with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
FutexOverview · splits 19 ⟂ 16
FutexHistory · splits 19 ⟂ 16

Map overview Semantic statistics

Futex

Nodes35
Edges34
Triples38
Avg. degree1.94
Density0.057143
Components1

Source & methodology

TTTA analyzes the structure around Futex to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Overview & Operations, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Futex · EN edition · Analysis: TopicsToTalkAbout

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