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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...所中阅读。
TCP的RTT算法
从前面的TCP重传机制我们知道Timeout的设置对于重传非常重要。
设长了，重发就慢，丢了老半天才重发，没有效率，性能差；
设短了，会导致可能并没有丢就重发。于是重发的就快，会增加网络拥塞...
What do these words mean in Git: Repository, fork, branch, clone, track?
...k a project (take the source from someone's repository at certain point in time, and apply your own diverging changes to it), you would clone the remote repository to create a copy of it, then do your own work in your local repository and commit changes.
Within a repository you have branches, which...
Javascript equivalent of Python's zip function
...s above
(Do note that the ... syntax may have performance issues at this time, and possibly in the future, so if you use the second answer with variadic arguments, you may want to perf test it.)
Here's a oneliner:
function zip(arrays) {
return arrays[0].map(function(_,i){
return ar...
What is referential transparency?
... gave no lean amount of head ache to logicians and philosophers for a long time. Russell and Quine sorted them out saying that they are not actually "referential", i.e., it is a mistake to think that the above examples are used to refer to entities. The right way to understand "Edinburgh has been ...
Python extract pattern matches
Python 2.7.1
I am trying to use python regular expression to extract words inside of a pattern
9 Answers
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Pandas count(distinct) equivalent
...
Interestingly enough, very often len(unique()) is a few times (3x-15x) faster than nunique().
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Why can't Python find shared objects that are in directories in sys.path?
...module .so so that it automatically knows where to find the library at run time without having to have LD_LIBRARY_PATH set at run time.
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How to capitalize the first letter of word in a string using Java?
Example strings
25 Answers
25
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Lists: Count vs Count() [duplicate]
...od has some type check optimizations that can cause it to run also in O(1) time but will degrade to O(N) if the underlying collection is not one of the few types it knows about.
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SQL command to display history of queries
...essed or that they are unordered? And, does the log update it self in real time?
– Drubio
Feb 13 '19 at 11:48
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