best analysis tools

, IostatIostat-C Display CPU usage-D Display disk usage-X device Specifies the name of the disk to be countedInterval specifying two time intervals for statistics650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/73/7E/wKioL1X_tseCxXaYAAIRyNcv88M628.jpg "title=" Iostat.png "alt=" Wkiol1x_tsecxxayaairyncv88m628.jpg "/>BLK_READ/S indicates the number of data blocks read per tableBLK_WRTN/S indicates the number of data blocks written per tableIf the BLK_WRTN/S value is large, it means that

Python comes with several performance Analysis modules: Profile, Cprofile, and Hotshot, all of which are basically the same way, nothing more than a pure Python or C-written module. This article describes cprofile.ExampleImport Time def func1 (): = 0 for in range (1000000): + = idef Func2 (): time.sleep (ten) func1 () Func2 ()Rundel. pyRun resultsResults analysisPerformed 6 functions, which cost a total of 10.138s, sorted by the na

Using the webbrowser control is really convenient to implement, but it is less flexible than sending packets in a direct group. For the Three Kingdoms web game, webbrowser can theoretically implement the desired function if it is used well (I only implement the automatic "referral" on the whole point ", The principle is the same ).You can use the packet capture tool to check which packages are available during the game.Some web games are flash interfaces, such as happy farm in the school. webbro

"]') model.xpath (' div[@class = "box box-2 box-4 mt17"])To match the target, which may be due to the fact that the XPath itself is designed with the exact match of the class name to determine the target, even more than one space:A label on the page is written like this: Model.xpath ('//a[@class = "DD"])Dead and Alive match not (at that time really is pretty confused forced), must be in the back with a space, but in the JS console a.dd This class selector can also be targeted to target, and Bea

-related system calls -e Trace=file//records only system calls involving file names -e Trace=desc//records only system calls involving file handles There are other, including process,ipc,signal and so on. A classic, through the Strace view a process of all relevant open files of the process, refer to the "Linux strace Command (detailed) txt" sina ebook can download If the development program does not have a powerful tool to accompany, then the development efficiency will be very low, even encoun

Before learning about lexical analysis, let's take a look at the definition of words: /// Note that for ease of calculation, all words are not marked as words, such as operators. Only keywords, variable names, and function names are marked as words. To better analyze the source code, a SourceCode class is created for lexical analysis: Public class SourceCode {// various markers public static char [] MultiL

IBMHeapanalyzer is a free graph analysis tool for JVM memory heap. It can effectively list heap memory usage and help analyze the causes of Java Memory leakage. After downloading and decompressing the package, there is a ha413.jar Running environment requirements: 1. UseJava 2 Platform, JDKRun IBM heapanalyzer 1.6 or more 2. Configure the environment variables. Run the following command: Example: /Usr/java60/bin/Java-xmx1000m-jar ha146.jar heapdump

"'".// If no tag exists or the tag is invalid, all tags are displayed.If ($ tag = "" | $ tag! = Addslashes ($ tag) {// If $ tag is empty or contains ', ", \, and other characters, execute$ Dlist = new taglist(tagtag,'tag.htm'); // create an instance of the taglist class and send $ tag to its constructor. In this case, $ tag may contain "'"}// If a tag exists, the document list is displayed.Else {$ Dlist = new taglist(tagtag,'taglist.htm ');} Code related to taglist: (./include/inc_taglist_view.

Recently engaged in the analysis of iOS crash log, summed up: The iphone development is going to be a non-stop version, followed by various versions of the crash log. If not properly managed, developers will soon be lost in the crash log and version of the ocean. As a background platform for the development of the moment for the sake of the client, the heart of the drunk. The Mac has a free gadget--dwarfdump that can easily detect the app and the co

Because PHP is an open language, it also leads to the lack of strong and authoritative support for the development environment. Here we will list some of the better compilation tools, hoping to help you develop PHP programs. From the beginning of Dreamweaver MX, DW began to support PHP + because PHP is an open language, which also led to the lack of strong and authoritative support for the development environment. Here we will list some of the better

From: http://blog.csdn.net/longxin007/article/details/1880477 PrefaceIf common programming doesn't need to know these things, if you want to precisely control the format of your object file or you want to view the content in the object to make some judgment, just now you can look at the following tools in idea: objdump, nm, ar. Of course, this article cannot explain in detail their usage and functions. If you think this article is not clear enough, yo

The source code analysis tool in linux-general Linux technology-Linux programming and kernel information. The following is a detailed description. Programming in linux often involves viewing where some things are defined. It is inconvenient to search through command lines. At least you need to use command lines, for example, commands such as grep and find still feel comfortable with graphic interface operations. In windows, there is a powerful source

Peid Analysis result: The files to be analyzed are compiled using Microsoft Visual C ++ 6.0. Software official home: http://www.peid.info/ Information Peid can analyze the shells, encryption, and compilers of most PE files. Currently, it can analyze 600 different signatures in PE files. Compared with other identifiers, peid is special here: 1. Superior user interface and simple operations. 2. The an