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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...nt a, S[a]}'
一般情况下，系统的socket资源默认5000个。（非官方）
Windows Dos命令：netstat -an | find "端口号"
TCP协议中有TIME_WAIT这个状态主要有两个原因：
1。防止上一次连接中的包，迷路后重新出现，影响新连接（经过2MSL，上一...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
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性能如何
是否有一些执行耗时的操作，I/O，网络文件下载，文件解析等，是否可以进行优化？是否会影响到功能体验？使用异步线程执行会更好吗？
多线程相关
是否涉及到多线程，临界区访问是否正常？会引入多线程...
VM 磁盘空间扩容引起的一些问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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重新加载LUN60，LUN80 问题解决。
得出结论，
虽然VM官方声称可以在线扩展硬盘的容量，但建议谨慎操作，还是找个夜深人静的时候，把数据迁移后，再扩容，一切正常后，在把数据迁移回来。 VM 磁盘 空间扩容 问题
gdb: how to print the current line or find the current line number?
...I'm currently in a stack frame, taken from one of shared libraries, which apparently wasn't compiled to contain line information. Thanks, kumar.
– Boris Burkov
Jan 31 '13 at 6:06
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Multiple levels of 'collection.defaultdict' in Python
... Only problem is it won't pickle, meaning multiprocessing is unhappy about sending these back and forth.
– Noah
Mar 27 '12 at 16:49
19
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plupload图片上传插件的使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...时间点更容易地处理单个文件。具体信息可以访问Plupload官方网站：http://www.plupload.com/
plupload配置说明
Browse_button:触发浏览文件按钮标签的唯一id,,在flash、html5、和silverlight中能找到触发事件的源（我理解的，这个参数在队列...
What are all possible pos tags of NLTK?
...e like me, I had wrong expectations. I expected a lookup table/list/map, mapping the pos acronyms like RB to their meaning like adverb. (Here is an example; or see @Suzana's answer, which links the Penn Treebank Tag Set). But you're right, the builtin nltk.help.upenn_tagset('RB')is helpful, and ment...
How do you run a command for each line of a file?
...l targets listed in file, xargs is the indicated tool. But for some other applications, small amount of files, etc...
Read entire file as command line argument.
If your file is not too big and all files are well named (without spaces or other special chars like quotes), you could use shell comman...
Multiprocessing: How to use Pool.map on a function defined in a class?
...tions pool.map could accept. I wrote the following to circumvent this. It appears to work, even for recursive use of parmap.
from multiprocessing import Process, Pipe
from itertools import izip
def spawn(f):
def fun(pipe, x):
pipe.send(f(x))
pipe.close()
return fun
def parm...
10 条真心有趣的 Linux 命令 - 创意 - 清泛网 - 专注C/C++及内核技术
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5.asciiquarium
这个命令会将你的终端变成一个海洋馆。
下载term animator：
# wget http://search.cpan.org/CPAN/authors/id/K/KB/KBAUCOM/Term-Animation-2.4.tar.gz
安装并且配置这个包：
# tar -zxvf Term-Animation-2.4.tar.gz
# cd Term-Animation-2.4/
# perl Makefile...