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Big-O for Eight Year Olds? [duplicate]

...ithout changing your architecture around (eg by moving things to overnight batch computations, or not doing things per-frame). It's ok if the input size increases a little bit, though; just watch out for multiples. O(n^2) "quadratic" - it's really only going to work up to a certain size of your inpu...
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?

...ors, Intel's "micro-ops fusion" that try to group instructions into larger batches of simultaneous work (kind of like the VLIW/Itanium titanic). There are even cache boundaries that could make the code run faster for god-knows-why if it's bigger (maybe the cache controller slots it more intelligentl...
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What are the big differences between TFVC (TFS Version Control) and Git for source control when usin

...rent Beta release doesn't have it yet, I expect it will drop with the next batch :). – jessehouwing May 6 '14 at 21:27 8 ...
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Why does Java switch on contiguous ints appear to run faster with added cases?

...9: 289; 100: 300; 110: 311; 120: 322; 130: 333; 140: 344; 150: 355; 160: 366; 170: 377; 180: 388; 190: 399; 200: 410; 210: 421; 220: 432; default: 443 } In the first case, with narrow ra...
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WiX tricks and tips

...see my answer on multiple versions of the same product). For example, this batch file automatically harvests RoboHelp output. @echo off robocopy ..\WebHelp "%TEMP%\WebHelpTemp\WebHelp" /E /NP /PURGE /XD .svn "%WIX%bin\heat" dir "%TEMP%\WebHelp" -nologo -sfrag -suid -ag -srd -dir WebHelp -out We...
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What does .SD stand for in data.table in R

...h among character/factor/numeric are common. We can use .SD and .SDcols to batch-convert groups of such columns. We notice that the following columns are stored as character in the Teams data set: # see ?Teams for explanation; these are various IDs # used to identify the multitude of teams from ...
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Memcached vs. Redis? [closed]

...king simple queries. 4 hours later I could POC more complex scenarios with batch inserts using Lua script and choosing the right (NIO) Java library to improve the performance. I cannot imagine anything more friendly and simple to use than Redis. – Moose on the Loose ...
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What is a “cache-friendly” code?

... of Data Oriented Design. The basic mantra is to Sort, Eliminate Branches, Batch, Eliminate virtual calls - all steps towards better locality. Since you tagged the question with C++, here's the obligatory typical C++ Bullshit. Tony Albrecht's Pitfalls of Object Oriented Programming is also a great ...
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Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升

...:返回连接过后的字符串。 示例:$(join aaa bbb , 111 222 333)返回值是“aaa111 bbb222 333”。 四、foreach 函数 foreach 函数和别的函数非常的不一样。因为这个函数是用来做循环用的,Makefile中的 foreach函数几乎是仿照于Unix标...
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Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升

...:返回连接过后的字符串。 示例:$(join aaa bbb , 111 222 333)返回值是“aaa111 bbb222 333”。 四、foreach 函数 foreach 函数和别的函数非常的不一样。因为这个函数是用来做循环用的,Makefile中的 foreach函数几乎是仿照于Unix标...