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大数据时代的数据化运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...下，我们在运营中看到可以获得有效数据的原始数据不是问题，去除无效和虚假的数据才是关键。
相信做发行的同行都知道，在实践中，会遇到通过某些渠道或者是CPS，或者是广告渠道，他们一定会有大量的虚假的数据在里面...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...用Makefile时，有一些我们会经常使用，而且使用频率非常高的东西，比如，我们编译C/C++的源程序为中间目标文件（Unix下是[.o] 文件，Windows下是[.obj]文件）。本章讲述的就是一些在Makefile中的“隐含的”，早先约定了的，不需要...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 算法
但是上面的这个算法在重传的时候会出有一个终极问题——你是用第一次发数据的时间和ack回来的时间做RTT样本值，还是用重传的时间和ACK回来的时间做RTT样本值？
这个问题无论你选那头都是按下葫芦起了瓢。 如下图所...
What is the difference between JDK and JRE?
...me .jars, configuration files, property files, fonts, translations, certs, etc. – all the "trimmings" of Java. The most important is modules, a file that contains the .class files of the Java standard library.
At a certain level, the Java standard library needs to call into native code. For this p...
Reading binary file and looping over each byte
...tically human readable text files (like plain text, code, markup, markdown etc... essentially anything ascii, utf, latin, etc... encoded) that you should open without the 'b' flag.
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What is the global interpreter lock (GIL) in CPython?
...s in Python are only good for blocking I/O; your app will never go above 1 CPU core of processor usage
– Ana Betts
Aug 18 '09 at 15:26
8
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Could not load file or assembly … An attempt was made to load a program with an incorrect format (Sy
...roject-->properties-->build - it was set for x86; setting it to "Any CPU" fixed this issue. I always thought that this setting was the same as the "platform target" dropdown in the configuration manager, but apparently it's not (in fact, the "platform target" in configuration manager doesn't ...
Unable to load DLL 'SQLite.Interop.dll'
...ve the exception. The DLL files were dumped in the appropriate Debug\x64 (etc) folders.
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What's a good rate limiting algorithm?
...ard_message();
allowance -= 1.0;
There are no datastructures, timers etc. in this solution and it works cleanly :) To see this, 'allowance' grows at speed 5/8 units per seconds at most, i.e. at most five units per eight seconds. Every message that is forwarded deducts one unit, so you can't se...
Catching an exception while using a Python 'with' statement
...nally:
f.close()
Used as follows:
with opened_w_error("/etc/passwd", "a") as (f, err):
if err:
print "IOError:", err
else:
f.write("guido::0:0::/:/bin/sh\n")
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