大约有 3,285 项符合查询结果（耗时：0.0278秒） [XML]
Python - Create a list with initial capacity
...h a cheap operation in the loop and found preallocating is almost twice as fast.
– Keith
Aug 26 '15 at 15:09
15
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Why should I prefer single 'await Task.WhenAll' over multiple awaits?
...t's hitting a DB sitting on the same machine as the server, is going to be faster than the overhead of adding a few delegates to a message pump. That in-memory query is still almost certainly going to be quite a lot slower.
– Servy
Jan 30 '15 at 14:57
...
Alternative to google finance api [closed]
...,ESV,ETR,EOG,EQT,EFX,EQIX,EQR,ESS,EL,ES,EXC,EXPE,EXPD,ESRX,XOM,FFIV,FB,FDO,FAST,FDX,FIS,FITB,FSLR,FE,FISV,FLIR,FLS,FLR,FMC,FTI,F,FOSL,BEN,FCX,FTR,GME,GCI,GPS,GRMN,GD,GE,GGP,GIS,GM,GPC,GNW,GILD,GS,GT,GOOG,GWW,HAL,HBI,HOG,HAR,HRS,HIG,HAS,HCA,HCP,HCN,HP,HES,HPQ,HD,HON,HRL,HSP,HST,HCBK,HUM,HBAN,ITW,IR,T...
Bash tool to get nth line from a file
... For those wondering, this solution seems about 6 to 9 times faster than the sed -n 'NUMp' and sed 'NUM!d' solutions proposed below.
– Skippy le Grand Gourou
Feb 18 '14 at 16:48
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When to choose checked and unchecked exceptions
...
You're correct.
Unchecked exceptions are used to let the system fail fast which is a good thing. You should clearly state what is your method expecting in order to work properly. This way you can validate the input only once.
For instance:
/**
* @params operation - The operation to execute...
What Makes a Good Unit Test? [closed]
...ng names, No duplication, tests with good names, etc.
Good tests also run Fast. any test that takes over half a second to run.. needs to be worked upon. The longer the test suite takes for a run.. the less frequently it will be run. The more changes the dev will try to sneak between runs.. if anyth...
Rolling median algorithm in C
...mes k)}{O(n * k)} which is slower asymptotically, it is
considerably faster for small \eqn{k} or \eqn{n}.}
}
}
It would be nice to see this re-used in a more standalone fashion. Are you volunteering? I can help with some of the R bits.
Edit 1: Besides the link to the older version of Tru...
What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
...-reversed, before it is truncated to 48-bits in the actual RNG)
But it is fast! And to avoid unnecessary compare-and-set-loops, the loop body should be fast. This probably explains the usage of this specific MLCG, without addition, without xoring, just one multiplication.
And the mentioned paper p...
Why are joins bad when considering scalability?
...a number of scalability-friendly ways to take raw joins and make them much faster:
Join on a surrogate key (autonumer/identity column) rather than a natural key. This means smaller (and therefore faster) comparisons during the join operation
Indexes
Materialized/indexed views (think of this as a pr...
Load and execution sequence of a web page?
...sive is the parsing of the DOM/CSS. If you want your page to be processed faster then write efficient CSS by eliminating redundent instructions and consolidating CSS instructions into the fewest possible element referrences. Reducing the number of nodes in your DOM tree will also produce faster re...