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Hot spot - Dictionary Definition and Overview |
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Hot spot : (noun)
1: a place of political unrest and potential violence; "the
United States cannot police all of the world's hot
spots" [syn: hotspot]
2: a point of intense heat or radiation [syn: hotspot]
3: a lively entertainment spot [syn: hotspot]
Based on WordNet 2.0
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Hot spot :
C/{Unix">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.
[{Jargon File]
(1995-02-16)
Based on the Online Dictionary of Computing [Computer_Dictionary]:
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Hot spot : n. 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 optimization 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 gestures, which trigger some action. World
Wide Web pages now provide the canonical examples; WWW browsers
present hypertext links as hot spots which, when clicked on, point the
browser at another document (these are specifically called hotlinks).
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.
Based on the Online Dictionary of Computing [Computer_Dictionary]:
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Example Usage of spot |
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JimDeuce: Went to the bar b Q spot with ma homegirl now I'm back at my westside hideout...time flys |
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Powla: Chilling out after a spot of DIY'ing :) |
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lucefiasco07: @s_martella weekdays my housee is da safe spot weekends i cannt help ya.. |
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