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Priority Inheritance
In real-time computing, priority inheritance is a method for eliminating unbounded priority inversion. Using this Computer programming, programming method, a process scheduling algorithm increases the priority of a process (A) to the maximum priority of any other process waiting for any resource (computer science), resource on which A has a Lock (computer science), resource lock (if it is higher than the original priority of A). The basic idea of the priority inheritance protocol is that when a job blocks one or more high-priority jobs, it ignores its original priority assignment and executes its critical section at an elevated priority level. After executing its critical section and releasing its locks, the process returns to its original priority level. Example Consider three jobs: Suppose that both H and L require some shared resource. If L acquires this shared resource (entering a critical section), and H subsequently requires it, H will block until L releases it (leaving its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Real-time Computing
Real-time computing (RTC) is the computer science term for Computer hardware, hardware and software systems subject to a "real-time constraint", for example from Event (synchronization primitive), event to Event (computing), system response. Real-time programs must guarantee response within specified time constraints, often referred to as "deadlines".Mordechai Ben-Ari, Ben-Ari, Mordechai; "Principles of Concurrent and Distributed Programming", ch. 16, Prentice Hall, 1990, , p. 164 The term "real-time" is also used in Computer simulation, simulation to mean that the simulation's clock runs at the same speed as a real clock. Real-time responses are often understood to be in the order of milliseconds, and sometimes microseconds. A system not specified as operating in real time cannot usually ''guarantee'' a response within any timeframe, although ''typical'' or ''expected'' response times may be given. Real-time processing ''fails'' if not completed within a specified deadline rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Priority Ceiling Protocol
In real-time computing, the priority ceiling protocol is a synchronization protocol for shared resources to avoid unbounded priority inversion and mutual deadlock due to wrong nesting of critical sections. In this protocol each resource is assigned a priority ceiling, which is a priority equal to the highest priority of any task which may lock the resource. The protocol works by temporarily raising the priorities of tasks in certain situations, thus it requires a scheduler that supports dynamic priority scheduling. ICPP versus OCPP There are two variants of the protocol: Original Ceiling Priority Protocol (OCPP) and Immediate Ceiling Priority Protocol (ICPP). The worst-case behaviour of the two ceiling schemes is identical from a scheduling view point. Both variants work by temporarily raising the priorities of tasks. In OCPP, a task X's priority is raised when a higher-priority task Y tries to acquire a resource that X has locked. The task's priority is then raised to the high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henrik Thane
Henrik is a male given name of Germanic origin, primarily used in Scandinavia, Finland, Estonia, Hungary and Slovenia. In Poland, the name is spelt Henryk but pronounced similarly. Equivalents in other languages are Henry (English), Heiki (Estonian), Heikki (Finnish), Henryk (Polish), Hendrik (Dutch and Estonian), Heinrich (German), Enrico (Italian), Henri (French), Enrique (Spanish) and Henrique (Portuguese). It means 'Ruler of the home' or 'Lord of the house'. Notable people named Henrik include: * Henrik, Prince Consort of Denmark (1934–2018) * Prince Henrik of Denmark (born 2009) * Henrik Agerbeck (born 1956), Danish footballer * Henrik Andersson (badminton) (born 1977), Swedish player * Henrik Bull (other), several people * Henrik Christiansen (other), several people * Henrik Dagård (born 1969), Swedish decathlete * Henrik Dam (1895–1976), Danish biochemist, physiologist and Nobel laureate * Henrik Dettmann (born 1958), Finnish basketball coach * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vincent J
Vincent (Latin: ''Vincentius'') is a masculine given name originating from the Roman name ''Vincentius'', which itself comes from the Latin verb ''vincere'', meaning "to conquer." People with the given name Artists *Vincent Apap (1909–2003), Maltese sculptor *Vincent van Gogh (1853–1890), Dutch Post-Impressionist painter * Vincent Munier (born 1976), French wildlife photographer Saints *Vincent of Saragossa (died 304), deacon and martyr, patron saint of Lisbon and Valencia * Vincent, Orontius, and Victor (died 305), martyrs who evangelized in the Pyrenees * Vincent of Digne (died 379), French bishop of Digne * Vincent of Lérins (died 445), Church father, Gallic author of early Christian writings * Vincent Madelgarius (died 677), Benedictine monk who established two monasteries in France *Vincent Ferrer (1350–1419), Valencian Dominican missionary and logician *Vincent de Paul (1581–1660), Catholic priest who served the poor *Vicente Liem de la Paz (Vincent Liem the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bilge E
The bilge of a ship or boat is the part of the hull that would rest on the ground if the vessel were unsupported by water. The "turn of the bilge" is the transition from the bottom of a hull to the sides of a hull. Internally, the bilges (usually used in the plural in this context) is the lowest compartment on a ship or seaplane, on either side of the keel and (in a traditional wooden vessel) between the floors. The first known use of the word is from 1513. Bilge water The word is sometimes also used to describe the water that collects in this area. Water that does not drain off the side of the deck or through a hole in the hull, which it would typically do via a scupper, instead drains down into the ship into the bilge. This water may be from rough seas, rain, leaks in the hull or stuffing box, or other interior spillage. The collected water must be pumped out to prevent the bilge from becoming too full and threatening to sink the ship. Bilge water can be found aboard al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ken Sakamura
, as of April 2017, is a Japanese professor and dean of the Faculty of Information Networking for Innovation and Design at Toyo University, Japan. He is a former professor in information science at the University of Tokyo (through March 2017). He is the creator of the real-time operating system (RTOS) architecture TRON. In 2001, he shared the Takeda Award for Social/Economic Well-Being with Richard Stallman and Linus Torvalds. Career As of 2006, Sakamura leads the ubiquitous networking laboratory (UNL), located in Gotanda, Tokyo, and the T-Engine forum for consumer electronics. The joint goal of Sakamura's ubiquitous networking specification and the T-Engine forum, is to enable any everyday device to broadcast and receive information. It is essentially a TRON variant, paired with a competing standard to radio-frequency identification (RFID). Since the foundation of the T-Engine forum, Sakamura has been working on opening Japanese technology to the world. His prior brainchild, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroaki Takada
Hiroaki is a masculine Japanese given name. It can be written in many ways. In the following lists, the kanji in parentheses are the individual's way of writing the name Hiroaki. Written forms Forms in kanji can include * , , , , , , , , , , , , , , , , , , , , , , , , , or ) People with the name *, Japanese admiral *, Japanese businessman *, Japanese volleyball player *, Japanese hammer thrower *, Japanese diplomat *, Japanese anime director and screenwriter *, Japanese serial killer *, Japanese prince *, Japanese judoka *, Japanese footballer *, Japanese voice actor *, Japanese racing driver *, Japanese modern pentathlete *, Japanese footballer *, Japanese scientist *, Japanese footballer *, Japanese snowboarder *, Japanese baseball player *, Japanese footballer and manager *, Japanese virologist *, Japanese voice actor *Hiroaki Morino , known by his pseudonym as , is a Japanese ceramist known for his elegant and bold forms that serve both as standalone pieces and function ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Fay Wolfe
The name Victor or Viktor may refer to: * Victor (name), including a list of people with the given name, mononym, or surname Arts and entertainment Film * ''Victor'' (1951 film), a French drama film * ''Victor'' (1993 film), a French short film * ''Victor'' (2008 film), a TV film about Canadian swimmer Victor Davis * ''Victor'' (2009 film), a French comedy * ''Victor'', a 2017 film about Victor Torres by Brandon Dickerson * ''Viktor'' (2014 film), a Franco/Russian film * ''Viktor'' (2024 film), a documentary of a deaf person's perspective during Russian invasion of Ukraine Music * ''Victor'' (Alex Lifeson album), a 1996 album by Alex Lifeson * ''Victor'' (Vic Mensa album), 2023 album by Vic Mensa * "Victor", a song from the 1979 album ''Eat to the Beat'' by Blondie Businesses * Victor Talking Machine Company, early 20th century American recording company, forerunner of RCA Records * Victor Company of Japan, usually known as JVC, a Japanese electronics corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steven Wohlever
Stephen or Steven is an English first name. It is particularly significant to Christians, as it belonged to Saint Stephen ( ), an early disciple and deacon who, according to the Book of Acts, was stoned to death; he is widely regarded as the first martyr (or "protomartyr") of the Christian Church. The name, in both the forms Stephen and Steven, is often shortened to Steve or Stevie. In English, the female version of the name is Stephanie. Many surnames are derived from the first name, including Stephens, Stevens, Stephenson, and Stevenson, all of which mean "Stephen's (son)". In modern times the name has sometimes been given with intentionally non-standard spelling, such as Stevan or Stevon. A common variant of the name used in English is Stephan ( ); related names that have found some currency or significance in English include Stefan (pronounced or in English), Esteban (often pronounced ), and the Shakespearean Stephano ( ). Origins The name "Stephen" (and its comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Yodaiken
The name Victor or Viktor may refer to: * Victor (name), including a list of people with the given name, mononym, or surname Arts and entertainment Film * ''Victor'' (1951 film), a French drama film * ''Victor'' (1993 film), a French short film * ''Victor'' (2008 film), a TV film about Canadian swimmer Victor Davis * ''Victor'' (2009 film), a French comedy * ''Victor'', a 2017 film about Victor Torres by Brandon Dickerson * ''Viktor'' (2014 film), a Franco/Russian film * ''Viktor'' (2024 film), a documentary of a deaf person's perspective during Russian invasion of Ukraine Music * ''Victor'' (Alex Lifeson album), a 1996 album by Alex Lifeson * ''Victor'' (Vic Mensa album), 2023 album by Vic Mensa * "Victor", a song from the 1979 album ''Eat to the Beat'' by Blondie Businesses * Victor Talking Machine Company, early 20th century American recording company, forerunner of RCA Records * Victor Company of Japan, usually known as JVC, a Japanese electronics corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
