best analysis tools

Follow the Spring Developer Tools Source Analysis: Second, class path monitoring, then see the previous mentioned how these classes are configured, how to start. Spring-boot-devtools uses the automatic configuration of Spring boot, and we first focus on the parts of the auto-restart in the local development environment. In the localdevtoolsautoconfiguration mainly contains the Livereload and restart of the

Next Spring Developer Tools Source Analysis: Second, class path monitoring, then look at the previous mentioned how these classes are configured, how to start. Spring-boot-devtools uses the automatic configuration of Spring boot, we first focus on the automatic restart in the local development environment. In the localdevtoolsautoconfiguration mainly includes the livereload and the reset configuration, the

, so all network addresses currently use slashes as delimiters.Windows uses a slash as a parameter identifier for a DOS command prompt, and in order to avoid confusion, a backslash is used as the path delimiter. Currently, the file browser on the Windows system uses a backslash as the path delimiter.Conclusion:1. The browser address bar URL using a slash;2. Use a backslash on the Windows file browser;3. The path that appears in the HTML URL () property must use a slash when the path specified is

the TIME_WAIT state. When there are too many concurrent requests, there will be a lot of time_wait that can not be disconnected in time, which will consume a lot of port resources and server resources.　　　　　Netstat-an|awk '/tcp/{print $6} ' |sort|uniq-c5 established5 LISTEN2048 time_waitVim/etc/sysctl.conf#开启重用, allowing connections to the TIME_WAIT state to be re-used for new TCP connectionsNet.ipv4.tcp_tw_reuse = 1#开启TCP连接中TIME_WAIT连接的快速回收Net.ipv4.tcp_tw_recycle = 1#控制同时保持TIME_WAIT套接字的最大数量Net.

As a Java program, master some of the performance analysis tools to locate and troubleshoot the system bottlenecks, this article only records some of their own use of some of the commands, follow-up will continue to add.First, the SAR commandSAR (System activity Reporter report) is one of the most comprehensive system performance analysis

The core and most essential function of the so-called report tool is its tabulation capability, that is, whether it can generate various report tools that it needs without writing code. However, when examining report tools, users tend to focus on peripheral factors such as print output, rendering scheme, and management and scheduling, while ignoring the most essential tabulation capabilities of report

[Email protected] ~]# Vim/etc/yum.repos.d/ntop.repo[NTOP]Name=ntop Packagesbaseurl=http://packages.ntop.org/centos-stable/$releasever/$basearch/Enabled=1Gpgcheck=1Gpgkey=http://packages.ntop.org/centos-stable/rpm-gpg-key-deri[Ntop-noarch]Name=ntop Packagesbaseurl=http://packages.ntop.org/centos-stable/$releasever/noarch/Enabled=1Gpgcheck=1Gpgkey=http://packages.ntop.org/centos-stable/rpm-gpg-key-deri2. Install the Yum extension source[Email protected] ~]# RPM-UVH epel-release-6-8.noarch.rpm3, In

performs the removed function. Internal call Jquery.dequeue to implement. Jquery.dequeue source code is as follows Special attention in the Jquery.dequeue is the processing of the FX animation queue Dequeue:function (Elem, type) { type = Type | | "FX"; var queue = Jquery.queue (Elem, type), startlength = queue.length, fn = Queue.shift (),//Remove the first function in the queue hooks = JQ Uery._queuehooks (Elem, type), next = function () { jquery.dequeue (elem

Detailed explanation of PHP debugging and performance analysis tools Xdebug and php debugging xdebug During program development, the most commonly used debugging method is to print statements using echo, print_r (), var_dump (), and printf. The execution efficiency of PHP scripts, usually the script execution time. The efficiency of Database SQL is usually the database Query time, but this does not really l

Recently, because of system problems, memory analysis tools have been reviewed (for Eclipse) Through the dump file, and then use the Memory Analysis tool on eclipse (it's easy to install online) Memory Leak lookup Idea one: Open "Details" under Leak Suspects->problem suspect N. After you open this page, there are several things: 1, the reference cumulative relati

Before the system background alarm too many, simple query the following reason, mainly is the data volume is large, the number of queries and database performance is low caused. At that time, a simple analysis of the database configuration and a few tables with slow log queries added a single-column index to a long-running table, and the effect was more obvious.14 National Day during the background interface of the public number call situation is as f

end, most parents have to be disappointed with the reality, with only a handful of so-called "winners" exceptions. They also sigh that children have been too bitter these years, not to enjoy the happiness and sunshine. Fourth place: Don't cherish your partner (57%) Drunk side know wine thick, love the party know heavy. Feelings, always have not know how to cherish, lost after the precious. Mankind can never invent two kinds of substances, one is indifferent water, and the second is regret medi

"51cto.com fast translation" to the data analysis, we will start from where? For most friends who are familiar with the graphics work environment, the spreadsheet tool is undoubtedly the first option. But command-line tools can also solve problems faster and more efficiently--and you need to learn a little bit more. Most of this type of tool freeze is strictly limited to Linux, and most can also run under U

Why are visitors to your site constantly leaving, or even some will never come back! This article describes the 14 free visitor behavior analysis tools that will help you: 1. Know your visitors ' needs 2. Enhance the user experience 3. Improve the usability of the website 4. Retain more repeat Customers 5. Increase the success rate of sales There is a big problem with Web design: If you want your sit

First I recommend this text to the picture app. Only Android version.Icon:Function:Text to picture, currently supports custom generated image size (default is phone width * adaptive height), support font size, color, background color, backgrounds, fonts, line spacing settings, as well as custom watermark. And the addition of two-dimensional code function and file import generation function, where two-dimensional code function for text generation QR code, using text to picture two-dimensional cod

) this.width=650; "title=" image (5) "border=" 0 "alt=" image (5) "width=" 763 "height=" 412 "src="/http Filesimg.111cn.net/2014/08/05/20140805141435996.png "style=" border:1px solid RGB (230,230,230); margin:0px auto; height:auto; "/>How to Use:Interactive reports that appear in terminal# Goaccess-f/data/wwwlogs/access_nginx.logTo generate an HTML report:# goaccess-f access.log-a > report.htmlTo generate a JSON report:# goaccess-f Access.log-a-d-o JSON > Report.jsonTo generate a CSV report:# go

Microsoft has an in-house tool,--pssdiag, that collects very much information, requiring only simple configuration and operation steps.: http://diagmanager.codeplex.comDefault installation path: C:\Program Files (x86) \microsoft\pssdiag1. In the interface to set up the information needed to collect, click Save, will pop up a dialog box, display/modify the generated Pssd.cab file storage location, if you do not store the default location, you can click to select a different path.2. Locate the Pss

1, NumpyInstallation: Pip Install NumPy[[email protected] work]#Cat numpy_test.py#!/usr/bin/env python#Coding:utf-8 from __future__ Importprint_function#import modules and add aliasesImportNumPy as NP#Create an arrayA = Np.array ([2,0,1,7])Print(a)Print(A[:3])Print(A.min ()) A.sort ()Print(a)#Create two-dimensional datab = Np.array ([[1,2,3],[4,5,6]])Print(b)Print(b*b) [[email protected] work]#python numpy_test.py[2 0 1 7][2 0 1]0[01 2 7][[1 2 3] [4 5 6]][[ 1 4 9] [16 25 36]]Simple to use Python

In Spring Developer Tools Source Analysis: First, the file directory monitoring design introduced Devtools provides file monitoring implementation, in the second part, we will use the first part provides the directory monitoring function, to achieve the development environment CLASSPATH The monitoring. second, class path monitoring First look at some of the class diagrams that may be involved in this sectio

__ Created Temp ________________________________________________________ Disk Table 45.90k 0.1/s table 1.67M 2.2/s size:512.0m File 0.0/s __ Threads __ ___________________________________________________________ Running 3 of 9 Cached%hit:99.74 Created 0.0/S Slow 0 0/s __ aborted ______________________________________________________ _______ Clients 187 0.0/s connects 12.89k 0.0/s __ Bytes ________________________________________ _______________________ Sent 5.83G 7.5k/s Received 370.77M 479.7/s