| slovo | definícia |
hot spot
(encz) | hot spot,horké místo Zdeněk Brož |
hot spot
(encz) | hot spot,žhavé místo Zdeněk Brož |
hot spot
(wn) | hot spot
n 1: a place of political unrest and potential violence; "the
United States cannot police all of the world's hot spots"
[syn: hot spot, hotspot]
2: a point of relatively intense heat or radiation [syn: {hot
spot}, hotspot]
3: a lively entertainment spot [syn: hot spot, hotspot] |
hot spot
(foldoc) | 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.
[Jargon File]
(1995-02-16)
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hot spot
(jargon) | 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}, 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.
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| | podobné slovo | definícia |
hot spots
(encz) | hot spots,horké body [eko.] RNDr. Pavel Piskač |
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