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science, an input queue is a collection of processes in storage that are waiting to be brought into memory to run a program. Input queues are mainly used
Input_queue
CPU optimization unit
prefetching and it is served by using a prefetch input queue (PIQ). The pre-fetched instructions are stored in a queue. The fetching of opcodes well in advance
Prefetch_input_queue
Abstract data type
Input Input Output Output as a queue as a stack In computer science, a double-ended queue (abbreviated as deque — /dɛk/ DEK), is an abstract data type
Double-ended_queue
Means of interprocess communication in software engineering
message queues. Graphical user interfaces (GUIs) employ a message queue, also called an event queue or input queue, to pass graphical input actions,
Message_queue
Data structure maintained by job scheduler software containing jobs to run
In system software, a job queue (a.k.a. batch queue, input queue), is a data structure maintained by job scheduler software containing jobs to run. Users
Job_queue
Connection for Window PC computers
for the Tcl language to run on Windows NT/2K/XP/Vista US6223207B1 - Input/output completion port queue data structures and methods for using same v t e
Input/output_completion_port
Abstract data type
tail, or rear of the queue. The end of the queue where elements are removed is called the head or front of the queue. The name queue is an analogy to the
Queue_(abstract_data_type)
Type of queue model in queueing theory
In queueing theory, a discipline within the mathematical theory of probability, an M/M/1 queue represents the queue length in a system having a single
M/M/1_queue
Network technique addressing head-of-line blocking
each input port maintains a separate virtual queue for each output port. Therefore, congestion on an egress port will block only the virtual queue for
Virtual_output_queueing
Performance-limiting phenomenon in computer networks
phenomenon that occurs when a queue of packets is held up by the first packet in the queue. This occurs, for example, in input-buffered network switches,
Head-of-line_blocking
Additional storage that enables faster access to main storage
64 bytes from the L2 cache into the L1 cache. Caches with a prefetch input queue or more general anticipatory paging policy go further—they not only read
Cache_(computing)
Generalized abstraction of terminal use
character input. Applications programs reading from the terminal receive characters immediately, as soon as they are available in the input queue to be read
Seventh Edition Unix terminal interface
Seventh_Edition_Unix_terminal_interface
Computation model, equivalent to Turing machines
\subset \Gamma } is the finite set of the input alphabet; Γ {\displaystyle \,\Gamma } is the finite queue alphabet; $ ∈ Γ ∖ Σ {\displaystyle \,\$\in
Queue_automaton
Synchronous serial communication interface
that uses a data queue to transfer data across an SPI bus. It has a wrap-around mode allowing continuous transfers to and from the queue with only intermittent
Serial_Peripheral_Interface
Method for algorithm analysis in computer science
element): """Add an object to the end of the queue.""" self.input.append(element) # Append the element to the input list def dequeue(self): """Remove and return
Amortized_analysis
Algorithm to parse a syntax with infix notation to postfix notation
variables (strings), the input and the output. There is also a stack that holds operators not yet added to the output queue. To convert, the program reads
Shunting_yard_algorithm
Data structure for integer priorities
A bucket queue is a data structure that implements the priority queue abstract data type: it maintains a dynamic collection of elements with numerical
Bucket_queue
British technology researcher
their GSR 12000 router. His PhD thesis was on "Scheduling Cells in an Input-Queued Cell Switch", with advisor Professor Jean Walrand. He joined the faculty
Nick_McKeown
Method of improving instruction-level parallelism
the original instruction may already have been copied into a prefetch input queue and the modification will not take effect. Some processors such as the
Instruction_pipelining
Form of input/output processing
Asynchronous I/O is a form of input/output processing that allows a program to initiate an I/O operation and continue processing other tasks before the
Asynchronous_I/O
Programming paradigm
message-passing model is restricted to the simple fixed case of one infinite input queue per process (i.e. actor), to which any other process can send messages
Process-oriented_programming
Computing technique
Cache prefetching Instruction prefetch Speculative execution Prefetch input queue "Intel® 64 and IA-32 Architectures Optimization Reference Manual Volume
Prefetching
Solution to the reachability problem in distributed systems (computer science)
consumption. The basic models are the following: Single input queue: Each entity has a single FIFO queue where incoming messages are stored until they are consumed
Reachability_analysis
Topics referred to by the same term
SYSIN most commonly refers to: System input in OS/360 and successors OS/360 and successors § System job queue, SYSIN and SYSOUT Job Entry Subsystem 1
SYSIN
Method by which work is assigned
they will be placed in an expired queue. When the active queue is empty, the expired queue will become the active queue and vice versa. However, some enterprise
Scheduling_(computing)
Algorithm to search the nodes of a graph
moving on to the nodes at the next depth level. Extra memory, usually a queue, is needed to keep track of the child nodes that were encountered but not
Breadth-first_search
Computer terminal application programming interface
termios structure, optionally waiting for queued output to drain and flushing queued input cfgetispeed() query the input baud rate from the implementation-defined
POSIX_terminal_interface
Operating system for IBM S/360 and later mainframes
Reader procedure, the R/I creates a separate input job entry on the job queue for each job in the input stream. The R/I recognizes explicit DD *, implicit
OS/360_and_successors
Randomized algorithm
^ min-priority-queue supports: Count -> number of items in the priority queue Minimum -> minimum key of any item in the priority queue Extract-Min() ->
Reservoir_sampling
Computer memory management scheme
prediction using locality of reference); this is analogous to a prefetch input queue in a CPU. Swap prefetching will prefetch recently swapped-out pages if
Memory_paging
Scheduling algorithm for tasks or data flows
scheduler has n {\displaystyle n} input queues, q 1 , . . . , q n {\displaystyle q_{1},...,q_{n}} . To each queue q i {\displaystyle q_{i}} is associated
Weighted_round_robin
Technique to compress data
queue (by probability in increasing order so that the least likely item is in the head of the queue). While there is more than one node in the queues:
Huffman_coding
Algorithm for finding shortest paths
algorithm uses a min-priority queue data structure for selecting the shortest paths known so far. Before more advanced priority queue structures were discovered
Dijkstra's_algorithm
Computer keyboard shortcut that triggers a reboot or system security function
twice) OS/2 Ctrl+Esc Bring up the Window List (unblocking the synchronous input queue) Ctrl+Alt+Delete Perform a soft reboot Ctrl+Alt, NumLock (twice) Halt
Control-Alt-Delete
Operating system from IBM
classic subjects of comparison with other operating systems: Synchronous input queue (SIQ): if a GUI application was not servicing its window messages, the
OS/2
Mathematical model
In queueing theory, a discipline within the mathematical theory of probability, a fluid queue (fluid model, fluid flow model or stochastic fluid model)
Fluid_queue
Computer processing technique to boost memory performance
12/3 = 4 iterations prior to its usage to maintain timeliness. Prefetch input queue Link prefetching Prefetcher Cache control instruction Smith, Alan Jay
Cache_prefetching
Component of the z/OS operating system
product included tabular displays that showed the various JES2 queues on the SPOOL (input, output, held and active jobs) and the acronym was altered to
SDSF
Source code that alters its instructions to the hardware while executing
instead execute the code as it was before it was modified. See prefetch input queue (PIQ). PC processors must handle self-modifying code correctly for backwards
Self-modifying_code
Limiting the data rate on network controllers
and not respond to them. Sometimes they may be added to a queue to be processed once the input rate reaches an acceptable level, but at peak times the request
Rate_limiting
Hardware component that connects a computer to a network
interfaces to the host processors, support for multiple receive and transmit queues, partitioning into multiple logical interfaces, and on-controller network
Network_interface_controller
Operational mode of x86-compatible CPUs
in the CR0 register and a far jump must be made to clear the prefetch input queue. Also, on an IBM-compatible machine, in order to enable the CPU to access
Protected_mode
Estimate of time taken for running an algorithm
function of the size of the input. Since this function is generally difficult to compute exactly, and the running time for small inputs is usually not consequential
Time_complexity
Computer science data structure
queue can be implemented with a heap or a variety of other methods. K-way merge: A heap data structure is useful to merge many already-sorted input streams
Heap_(data_structure)
Graphical user interface
copying and pasting text. An important problem was that of the single input queue: a non-responsive application could block the processing of user-interface
Presentation_Manager
Mathematical model
In queueing theory, a discipline within the mathematical theory of probability, a bulk queue (sometimes batch queue) is a general queueing model where
Bulk_queue
Topics referred to by the same term
magazine Performance IQ, a sub-type of an intelligence test Prefetch input queue, pre-fetched computer instructions stored in a data structure Property
PIQ
Optimization for dynamical systems
dynamical systems. It gives an example application to optimal control in queueing networks. Lyapunov optimization refers to the use of a Lyapunov function
Lyapunov_optimization
Input/output performance measurement
Input/output operations per second (IOPS, pronounced eye-ops) is an input/output performance measurement used to characterize computer storage devices
IOPS
Network traffic shaping and policing algorithm
that the leaky bucket (as a queue) necessarily gives an output with a rigid rate, no matter how bursty the input. Fluid queue Generic cell rate algorithm
Leaky_bucket
Memory used temporarily in data transfers
another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as an analog-to-digital converter) or just before it is sent
Data_buffer
Type of queue
the fork–join queue to be stable the input rate must be strictly less than sum of the service rates at the service nodes. Fork–join queues have been used
Fork–join_queue
Sweep line algorithm
event queue; therefore, the correct next event will always be present in the event queue. As a consequence, it correctly finds all crossings of input line
Bentley–Ottmann_algorithm
Natural language processing computer program
dictated in the script, to respond with non-directional questions to user inputs. As such, ELIZA was one of the first chatbots (originally "chatterbots")
ELIZA
Software fuzzer that employs genetic algorithms
collection of inputs to the target. Inputs are also known as test cases. The algorithm maintains a queue of inputs, which is initialized to the input corpus
American_Fuzzy_Lop_(software)
Discontinued operating system for Sperry UNIVAC Mainframe computers
either executing programs or queues of pending tasks. The following were the task types used by VS/9: Batch input queue Executing batch programs Active
VS/9
Electrical engineer
McKeown proved that it is possible to achieve 100% throughput in an input-queued switch. Dr. Mekkittikul is a co-recipient of IEEE Communications Society
Adisak_Mekkittikul
Operating system
Reader procedure, the R/I creates a separate input job entry on the job queue for each job in the input stream. The R/I recognizes explicit DD *, implicit
OS/VS2_(SVS)
Queueing theory tool
used in queuing theory. It is an area graph that depicts the quantity of work in a given state, showing arrivals, time in queue, quantity in queue, and departure
Cumulative_flow_diagram
Form of multitasking in computers
buffering and queueing. Nowadays, the most common use of spooling is printing: documents formatted for printing are stored in a queue at the speed of
Spooling
Lossless, but memory-consuming, data compression algorithm
algorithm that, given an input text, builds a straight-line program, i.e. a context-free grammar generating a single string: the input text. In order to perform
Re-Pair
Discontinued windowing system developed by Sun Microsystems
automatic events, input queues for devices such as mice and keyboards, and other functionality required for full interaction. The input handling system
NeWS
Data processing chain
processing elements connected in series, where the output of one element is the input of the next one. The elements of a pipeline are often executed in parallel
Pipeline_(computing)
Software organization of the Michigan Terminal System
pseudo devices include: *SOURCE* standard input (normally either a terminal or for batch jobs, the input queue); *SINK* standard output (normally a terminal
MTS_system_architecture
Software that manages computer hardware resources
input stream. The command-line syntax is alpha | bravo. alpha will write to the pipe when its computation is ready and then sleep in the wait queue.
Operating_system
Signal to a computer processor emitted by hardware or software
with a wired-OR interrupt circuit attached to a level-sensitive processor input. Such interrupts may be difficult to identify when a system misbehaves.
Interrupt
Arbiter for mass storage access in an operating system
Input/output (I/O) scheduling is the method that computer operating systems use to decide in which order I/O operations will be submitted to storage volumes
I/O_scheduling
Load measure in telecommunications
Erlang-C, which became foundational results in teletraffic engineering and queueing theory. His results, which are still used today, relate quality of service
Erlang_(unit)
Indian-American computer scientist and professor
a packet switch, output queuing (the gold standard) can be simulated using a fabric that is twice as fast as an input-queued switch. Goel along with Rajeev
Ashish_Goel
Variant of heap data structure
allocated to the input array to store the heap (i.e. the algorithm is done in-place). This implementation is also useful as a Priority queue. When a dynamic
Binary_heap
Invariant in graph theory
theory, the queue number of a graph is a graph invariant defined analogously to stack number (book thickness) using first-in first-out (queue) orderings
Queue_number
Computing paradigm to improve computational efficiency
to an instruction queue (also called instruction buffer or reservation stations). The instruction waits in the queue until its input operands are available
Out-of-order_execution
Computer science concept
"concurrently executing" processes will be waiting for execution. A ready queue or run queue is used in computer scheduling. Modern computers are capable of running
Process_state
Sorting algorithm
priority queue until the queue is full. Then the minimum element is pulled from the queue and written as part of the first run. The next input element
Tournament_sort
Study of abstract machines and automata
of input, it makes a transition (or jump) to another state, according to its transition function, which takes the previous state and current input symbol
Automata_theory
Shell command for scheduling periodic jobs
efficient data structure for the simulation event set", describing an event queue data structure for discrete event-driven simulation systems that demonstrated
Cron
Means by which a user interacts with and controls a machine
usability). This generally means that the operator needs to provide minimal input to achieve the desired output, and also that the machine minimizes undesired
User_interface
Topics referred to by the same term
(electronics)#Timing considerations The amount of time spent in a phone queue on hold (telephone) Hold Time (album), by M. Ward Holding time (disambiguation)
Hold_time
Mathematical model for understanding queueing systems
to approximate quite general input-output behaviours. A network of m interconnected queues is a G-network if each queue has one server, who serves at
G-network
Linux kernel interface for storage devices
called "queue rings", to track the submission and completion of I/O requests, respectively. For storage devices, these are called the submission queue (SQ)
Io_uring
Raw photo processing software
history queue and the user can revert any of the changes at any time. There is also the possibility of taking multiple snapshots of the history queue allowing
RawTherapee
to its own queue. To accept user input, and for other reasons, each thread with a window must continuously retrieve messages from its queue, and act on
Message loop in Microsoft Windows
Message_loop_in_Microsoft_Windows
Technique that abstracts logical registers from physical registers
register files, usually one at the inputs to each execution unit. Each operand of each instruction in an issue queue has a place for a value in one of
Register_renaming
Abstract data type
structures Queue Double-ended queue FIFO (computing and electronics) Operational memory stack (aka Automatic memory stack) By contrast, a queue operates
Stack_(abstract_data_type)
Computational task of sorting whole numbers
initialize the priority queue and then to perform n find and remove operations. For instance, using a binary heap as a priority queue in selection sort leads
Integer_sorting
Serial communications protocol
physical output is called a coil, and a single-bit physical input is called a discrete input or a contact. It was originally published in 1979 by Modicon
Modbus
Indian computer scientist (1947–2024)
Doug Ehlert, and Arvind, "Rate Guarantees and Overload Protection in Input-Queued Switches", IEEE Infocom, March 2004. Dan Rosenband and Arvind, "Modular
Arvind_(computer_scientist)
Term in distributed computing
queues. The set of start states (also known as initial states) is a non-empty subset of states. Multiple start states are allowed so that some input information
Input/output_automaton
Time a given technological system takes to respond to an input
as many requests are already in the queue and have to be serviced first.[original research?] With basic queueing theory math you can calculate how the
Response_time_(technology)
Queued Telecommunications Access Method (QTAM) is an IBM System/360 communications access method incorporating built-in queuing. QTAM was an alternative
Queued Telecommunications Access Method
Queued_Telecommunications_Access_Method
Parallel programming model
into queues, one queue for each name), and a reduce method, which performs a summary operation (such as counting the number of students in each queue, yielding
MapReduce
General-purpose functional programming language
'a queue val fromList : 'a list -> 'a queue val insert : 'a * 'a queue -> 'a queue val peek : 'a queue -> 'a val remove : 'a queue -> 'a * 'a queue end
Standard_ML
Agile-inspired framework for manufacturing and product development
experience." XM uses a prioritized product backlog as the primary work input queue,[jargon] where work is visualized in an open area generally on a single
EXtreme_Manufacturing
a double-ended priority queue (DEPQ) or double-ended heap or priority deque is a data structure similar to a priority queue or heap, but allows for efficient
Double-ended_priority_queue
Computer memory unit using cascaded flip-flops
to input, it would get exactly what was put in (10110000), but offset by four clock cycles. This arrangement is the hardware equivalent of a queue. Also
Shift_register
Indian mathematician (1934–2021)
Single-Server Bulk Queues, Journal of the Australian Math, Soc., Vol. 4(2), (1964), 244–263. On Single-Server Bulk Queueing Processes with Binomial Input, Operations
U._Narayan_Bhat
iostat (input/output statistics) is a computer system monitor tool used to collect and show operating system storage input and output statistics. It is
Iostat
Software library for the C++ programming language
hash_multiset and hash_multimap. There are also container adaptors queue, priority_queue, and stack, that are containers with specific interface, using other
Standard_Template_Library
Data type in computer science
double-ended queue double-ended priority queue Some collections are interpreted as a sort of function: given an input, the collection yields an output. Notable
Collection (abstract data type)
Collection_(abstract_data_type)
Computer program whose performance is heavily dependent on time spent waiting on I/O
a computation is determined principally by the period spent waiting for input/output operations to be completed, which can be juxtaposed with being CPU
I/O_bound
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INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
INPUT QUEUE
n.
A line of persons waiting anywhere.
v. t.
To fasten, as hair, in a queue.
n.
The tail; the end of a thing; especially, a tail-like twist of hair worn at the back of the head; a queue.
n.
A tail-like appendage of hair; a pigtail.
n.
A cue, or queue.
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