netflow analysis

At the beginning, the author explains why modeling is required. Next, he describes four key structural analysis model tools, which are well-known.DFD(Dataflow digoal),ERD (entity relationship digoal),STD(State Transition Divisor),SC (structure chart) The following is a simple description. 1. DFD (dataflow digoal) DFD diagram is used to describe the data processing process. Includes: data stream, data storage, processing (functio

Label: style blog HTTP color ar use strong SP data2. Construct a network Dataset Feature set --- Right-click --- New --- network Dataset Enter the name of the network dataset and select the version of the network dataset. The default value is the highest; Select the element class used to generate the network dataset (other data can also be selected to facilitate the accuracy of subsequent analysis), and click Next; Model conversion. This is the def

Yesterday I wrote a simple chat about the simple memory partitioning of the Java Execution program, and today we'll talk about memory analysis of static variables and methods.The first feature of 1.static variables and methods memory analysisThe first attribute of the STATIIC variable and method is called by the class name, the static variable, and the class name. The static method is invoked in the form of a normal object only. But specifically why i

I. Activitymanagerservice (AMS) Start-up process analysisStart Activitymanagerservice in SystemserverIf you want to know Systemserver startup process can read this article: Android Source Code Analysis (vi) systemserver processFrameworks\base\services\java\com\android\server\systemserver.java // Activity Manager runs the show. Tracebeginandslog ("startactivitymanager"); = Msystemservicemanager.startservice ( activ

Label:This paper mainly explains MySQL performance bottleneck analysis, performance indicators, performance index information collection tools and methods, analysis of the use of tuning tools.The article has not been completed, the following is an outline.Performance bottlenecks:SlowPerformance Index:Frequency of VisitsNumber of concurrent connectionsCache Hit RatioIndex useSlow log opening and analysisQuer

Course Description:Python Data analysis Basics and Practices Python data analysis Practice Course Python Video tutorial----------------------Course Catalogue------------------------------├├├├├├├├; Baidu Network DiskPython Data analysis Basics and Practices Python data analysis Practice Course Python Video tutorial

Learn Java concurrency programming have to understand java.util.concurrent this package, this package has many of the concurrency tools we often use, such as: Reentrantlock, Countdownlatch, Cyclicbarrier, Semaphore and so on. The underlying implementations of these classes depend on the Abstractqueuedsynchronizer class, which shows the importance of this class. So in the Java Concurrency Series I first abstractqueuedsynchronizer this class to analyze, because this class is more important, and th

() objectSo what we call Defer.then returns as a child object, then how to defer = $ with the parent object var. Deferred () associated with theLet me see the source.DEFERREDTUPLE[1]Deferred is actually a reference to the root-level parent object, so nesting is deep, actually calling the parent object deferred[Done | fail | Progress EXECUTE addYou can see clearly that there are 2 different deferred objects with done fail progress that have different processing callbacks saved separately.Deferre

2.1 Fundamentals of Mathematics1. Mastering the concept of O (N)2. In any analysis that requires a large o representation, various simplifications are possible, and low-order items are usually automatically ignored and constants can be discarded2.2 Models1. Assumptions made about the simulator:1. The simulator does any simple work (addition, subtraction, assignment, comparison) that takes exactly one time unit2. The simulator has unlimited memory, no

SPRINGMVC Core distributor Dispatcherservlet Analysis [included source analysis] Directory Objective Dispatcherservlet initialization Process Dispatcherservlet processing the request process Summarize Resources ObjectiveSPRINGMVC is currently one of the mainstream web MVC frameworks.If a classmate is unfamiliar with it, then please refer to it's Getting started blog:http://www.