latency
Let an agent explain latency as a concept across fields, relay its components and measurement from engineering references, describe how it is reduced, and distinguish latency from throughput, bandwidth, jitter and the medical and psychological senses of latency.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain latency as a concept across fields, relay its components and measurement from engineering references, describe how it is reduced, and distinguish latency from throughput, bandwidth, jitter and the medical and psychological senses of latency.
The time delay between a cause and its observable effect in a system, measured as a duration, including signal propagation delay in circuits and networks, network delay and lag in online systems, timing skew between signals that should arrive together, shutter lag in cameras between pressing the button and capturing the image, and turbo lag in engines between throttle input and boost; latency is distinguished from throughput and bandwidth and is critical in real-time and interactive systems.
What it is for: Not applicable; a performance quantity.
It can be explain the concept; relay components and measurement; describe reduction techniques; distinguish related terms.
Distinguishing features
Time delay
Cause to effect
Composed of stages
Field-specific forms
What it looks like
Not a visible object; a delay.
Physical character
light propagation in fibre: about 5 microseconds per km
typical broadband round trip: about 10-50 ms
human perceptible audio delay: about 10-20 ms
How it is recognised
Delay between cause and effect
Network delay, propagation delay, lag, skew, shutter lag, turbo lag
Throughput is amount per time; bandwidth is capacity; jitter is variation in latency
Related models
is a kind of - in registry terms
is a kind of - in registry terms, as a performance attribute
is contrasted with - amount per time
is bounded by - in propagation
In practice
Families and kinds
network latency and round-trip time
signal propagation delay in circuits
clock and signal skew
input and display lag in computing and gaming
shutter lag in cameras
turbo lag in engines
audio latency
Standards and regulation
ITU-T recommendations on network delay
Broadcast and telecom quality of service standards
No general regulation
Failure modes and hazards
Confusing latency with bandwidth
Ignoring jitter
Mixing medical and engineering senses
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.latency-time
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What latency is.
Science.
Definition
Definition.
Definition
Definition.
- What is latency, and how does it differ from throughput, bandwidth and jitter? definition
- Is the question about engineering latency, a specific form or a medical or psychological sense? boundary
Forms
Forms.
Forms
Forms.
- What are propagation delay, network delay, skew, shutter lag and turbo lag? definition
- Which entry fits the specific form? action
Measure Measurement.
Practice.
Components
Components.
Components
Components.
- What components make up end-to-end latency, from propagation and transmission to queuing and processing? measurement
- Which references are standard? provenance
Tools
Tools.
Tools
Tools.
- How is latency measured with ping, traceroute, oscilloscopes and profiling tools? action
- Which sources are cited? provenance
Reduce Reducing latency.
Practice.
Networks
Networks and computing.
Networks
Networks.
- How do edge computing, caching, protocol design and hardware reduce latency? provenance
- Which entry fits edge computing? action
Devices
Devices and engines.
Devices
Devices.
- How are shutter lag and turbo lag reduced in cameras and engines? provenance
- Which entry fits the specific device? action
Context Impact and other senses.
Context.
Impact
Impact.
Impact
Impact.
- Why does latency matter in gaming, trading, telemedicine and real-time control? provenance
- Which entry fits real-time computing? action
Senses
Other senses.
Senses
Senses.
- What are latency in medicine, virology and psychology? provenance
- Which entry fits latent period? action
What the second pass must settle
- Should network latency and shutter lag be separate entries?
- How should engineering references be linked?
- The registry entry has merged aliases from unrelated fields; should they be split off?