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海量数据相似度计算之simhash和海明距离 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... out .println(" 耗费时间： " + (t2 - t1) + " ms ");
耗费时间： 4266 ms
大跌眼镜，居然计算耗费4秒。假设我们一天需要比较100w次，光是比较100w次的数据是否重复就需要4s，就算4s一个文档，单线程一分钟才处理15个文档，一个小时才900...
What is RPC framework and Apache Thrift?
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answered Dec 18 '13 at 17:34
JensGJensG
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Intermittent log4net RollingFileAppender locked file issue
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Try adding
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
to your <appender /> element. There is some performance impact because this means that log4net will lock the file, write to it, and unlock it for each write operation (as ...
Is there a difference between using a dict literal and a dict constructor?
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answered Jul 7 '11 at 12:43
John La RooyJohn La Rooy
249k4646 gold badges326326 silver badges469469 bronze badges
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What Makes a Method Thread-safe? What are the rules?
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4 Answers
4
Active
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Difference between objectForKey and valueForKey?
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404
objectForKey: is an NSDictionary method. An NSDictionary is a collection class similar to an N...
ipython reads wrong python version
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148
Okay quick fix:
which python
gives you /usr/bin/python, right? Do
which ipython
and I be...
Get value from hidden field using jQuery
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SarfrazSarfraz
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The 'json' native gem requires installed build tools
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54
I believe those installers make changes to the path. Did you try closing and re-opening the CMD...
What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
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1402
The ~ selector is in fact the General sibling combinator (renamed to Subsequent-sibling combin...