I really envy myself, special extreme worship, if I pull the erhu like playing with the Linux network as freely as possible, I dare to ask for a one-month unpaid long vacation, to the park every day to pull the erhu ... It's a pity that I haven't
First, the basic conceptHashing Technology : Establish a definite correspondence between the record's storage location and its keywords F, so that each keyword key corresponds to a storage location F (key).F: hash function/hash function ;A hash
Using multi-zone nf conntrack to cache routing and socket to build high-performance processing, nfconntrackSome days ago, I completed an extension for nf_conntrack underlying infrastructure, and then wrote a test code:1. Route results for one data
Problem:
1.new date () Time of the system difference 8 hours
2.eclipse Console printing time differs from system by 8 hours
3.LOG4J log time differs from the system by 8 hours
The above question is actually the same problem.
Reason: The time zone
I. Basic CONCEPTS
Lookup (searching) is a data element (or record) in a lookup table that is equal to a given value, based on a given value.
Lookup table (search table): A collection of data elements (or records) of the same type
Keyword (key):
Original articleReprint please register source HTTP://BLOG.CSDN.NET/TOSTQ directory: http://blog.csdn.net/tostq/article/details/51245979Originally this section is to talk about the multi-core image grayscale conversion routines, but too much content,
Hash list, also called hash table, English name is Hashtable. is a sub-knowledge point in the "find" directory within the data structure. If the hash table does not conflict, the hash lookup is the most efficient of all the lookups we have described.
I am in the vendor's client software to view the time of each record is normal, but I directly in the background using SQLyog lookup, found that their query out of the time field is always 8 hours slower, ask what is the problem?
I use the
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