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Which is faster : if (bool) or if(int)?
...s this also apply to 64-bit processes, that __int64 is faster than int? Or CPU deals 32-bit integer with 32-bit instruction sets separately?
– Crend King
Apr 27 '11 at 21:22
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Why does string::compare return an int?
... modern hardware) an integer of the same size as the system bus and/or the cpu registers, what is called the machine word. Therefore int is usually passed along faster than smaller types, because it doesn't require alignment, masking and other operations.
The smaller types exist mainly to allow RAM...
How do I return multiple values from a function? [closed]
... a new one), creating the namedtuple class is relatively expensive in both CPU and memory, and all class definitions intrinsically involve cyclic references (so on CPython, you're waiting for a cyclic GC run for them to be released). It also makes it impossible to pickle the class (and therefore, im...
站长投放广告绝对不做的事:Google Adsense和百度联盟广告违规分析 - 更多技...
...告，这样的行为是被Google Adsense禁止的。
二、1、版权问题的网站博客禁止投放Google Adsense。主要是音乐MP3、视频、新闻组和图像结果等内容的网页上。例如电影类的网站、纯粹的新闻网站、纯粹的图片网站、引用第三方的视频...
.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo
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It makes 20K requests in less than 30 seconds and uses cpu heavily. The feature might be useful but it causes too much trouble even on an intel i7 cpu
– dvdmn
Dec 10 '14 at 20:55
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Queue.Queue vs. collections.deque
... try/except, you will end up with a busy loop eating up enormous amount of CPU just waiting for new data. This seems like a horribly inefficient approach compared to the blocking calls offered by Queue, which ensure that the thread waiting for data will go to sleep and not waste CPU time.
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Python 3.x rounding behavior
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I saw that. And my first reaction: Who is using a 16-bit CPU that is incapable of representing all permutations of "2.67x" ? Saying that fractions can't be expressed in float seems like a scapegoat here: no modern CPU is that inaccurate, in ANY langauge (except Python?)
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How to print the ld(linker) search path
...asic library search path, with names like sse2 corresponding to additional CPU capabilities.
These paths, with hwcap in the line, can contain additional libraries tailored for these CPU capabilities.
One final note: using -p instead of -v above searches the ld.so cache instead.
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In C/C++ what's the simplest way to reverse the order of bits in a byte?
... from there is obviously simple to implement. =)
For example (on a 32-bit CPU):
uint8_t b = byte_to_reverse;
b = ((b * 0x0802LU & 0x22110LU) | (b * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
If by “simple to implement” one means something that can be done without a reference in ...
Hashing a file in Python
...chunks the hash function finds ideal which makes it faster or at lest less CPU intensive to compute the hash function. So instead of disabling buffering and trying to emulate it yourself, you use Python buffering and control what you should be controlling: what the consumer of your data finds ideal,...