大约有 4,900 项符合查询结果（耗时：0.0310秒） [XML]
JOIN queries vs multiple queries
...enchmark a server under load, however, in most cases, joins will take more CPU time vs PK queries, and often causes more network overhead as well.
– mindplay.dk
May 8 '15 at 19:06
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NumPy: function for simultaneous max() and min()
...ngle pass would be advantageous if the array exceed the size of the larger cpu caches.
– jtaylor
Mar 7 '14 at 13:58
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curl POST format for CURLOPT_POSTFIELDS
... edited Mar 10 '16 at 11:15
René Vogt
38.7k1313 gold badges6060 silver badges8181 bronze badges
answered Mar 10 '16 at 10:50
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
...d to log the start and completion of every HTTP request taking up disk and CPU time. It will become standard to log the start and completion of WebSockets data, but while the WebSockets connection doing duplex transfer there won't be any additional logging overhead (except by the application/service...
Abort Ajax requests using jQuery
...ted Jul 14 '18 at 22:53
Marcos Pérez Gude
19.5k33 gold badges3434 silver badges6161 bronze badges
answered Jan 15 '09 at 12:56
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How do you convert a JavaScript date to UTC?
...iply by 60 * 1000 just to be extra clear :))
– Timothée Boucher
Sep 13 '12 at 16:07
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Is there a generator version of `string.split()` in Python?
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This is because memory is slower than cpu and in this case, the list is loaded by chunks where as all the others are loaded element by element. On the same note, many academics will tell you linked lists are faster and have less complexity while your computer wil...
Convert a String In C++ To Upper Case
...ry/cache effects: data is hot in L1 cache the whole time, and we're purely CPU-bound.
boost::to_upper_copy<char*, std::string>(): 198.0s. Yes, Boost 1.58 on Ubuntu 15.10 is really this slow. I profiled and single-stepped the asm in a debugger, and it's really, really bad: there's a dynam...
What is the most efficient Java Collections library? [closed]
...rove didn't outperform the JDK collection classes in both memory usage and CPU time. If you are using objects though (and not primitive types), then I would agree with Alex, fretting over collection impl is not as big of a deal.
– Riyad Kalla
May 3 '11 at 13:...
Why do you not use C for your web apps?
... also made it possible to process more static content - with less powerful CPUs (ANSI C is not only about making dynamic contents fly).
By the way, G-WAN uses C scripts (no C compiler and linker needed) so the compiling/linking cycle/delay does not exist.
In the process of comparing G-WAN to .NET ...