ALL meanings of hot spot
hot spot
H h - noun Technical meaning of hot spot 1. (primarily used by C/Unix programmers, but spreading) It is received wisdom that in most programs, less than 10% of the code eats 90% of the execution time; if one were to graph instruction visits versus code addresses, one would typically see a few huge spikes amidst a lot of low-level noise. Such spikes are called "hot spots" and are good candidates for heavy optimisation or hand-hacking. The term is especially used of tight loops and recursions in the code's central algorithm, as opposed to (say) initial set-up costs or large but infrequent I/O operations. See tune, bum, hand-hacking. 2. The active location of a cursor on a bit-map display. "Put the mouse's hot spot on the "ON" widget and click the left button." 3. A screen region that is sensitive to mouse clicks, which trigger some action. Hypertext help screens are an example, in which a hot spot exists in the vicinity of any word for which additional material is available. 4. In a massively parallel computer with shared memory, the one location that all 10,000 processors are trying to read or write at once (perhaps because they are all doing a busy-wait on the same lock). 5. More generally, any place in a hardware design that turns into a performance bottleneck due to resource contention. 6. wireless hotspot. 1
- countable noun hot spot You can refer to an exciting place where there is a lot of activity or entertainment as a hot spot. 0
- countable noun hot spot You can refer to an area where there is fighting or serious political trouble as a hot spot. 0
- noun hot spot an area of potential violence or political unrest 0
- noun hot spot a lively nightclub or other place of entertainment 0
- noun hot spot an area of great activity of a specific type 0
- noun hot spot any local area of high temperature in a part of an engine, etc 0
- noun hot spot part of the inlet manifold of a paraffin engine that is heated by exhaust gases to vaporize the fuel 0
- noun hot spot a place where wireless internet, esp broadband, services are provided to users of portable computers through a wireless local area network, such as in an airport, railway station, or library 0
- noun hot spot a small area on the surface of or within a body with an exceptionally high concentration of radioactivity or of some chemical or mineral considered harmful 0
- noun hot spot a similar area that generates an abnormal amount of heat, as revealed by thermography 0
- noun hot spot a part of a chromosome that has a tendency for mutation or recombination 0
- noun hot spot an area of actual or potential trouble or violence 0
- noun hot spot a lively, popular place for entertainment or socializing 0
- noun hot spot any place regarded as a center for a specified activity or interest 0
- noun hot spot an area of especially intense heat or radiation 0
- noun hot spot a building, business, or locality where wireless access to the Internet is provided or is available 0