top 10 data analysis tools

(Figure 1) can help analyze any. NET supported code base, as well as HTTP requests, storage IO, and support for SQL Server, Oracle,mysql,mariadb,postgresql data access.Figure 1. Red Gate ANTS Performance analysis toolThe Ants memory analysis tool makes. NET memory analysis easier, and ants memory

the coding specifications, evaluate the code quality based on a certain quality model, and generate a system call relationship diagram; different from static testing tools, dynamic testing tools generally use plug-ins to insert some monitoring code into the executable file generated by the Code, used to count the data when the program is running. The biggest dif

Enable slow Log There are two ways to enable: 1, in MY.CNF through Log-slow-queries[=file_name] 2, when the mysqld process is started, specify the--log-slow-queries[=file_name] option Five common tools for comparisonMysqldumpslow, Mysqlsla, Myprofi, Mysql-explain-slow-log, Mysqllogfilter Mysqldumpslow, MySQL official provides a slow query log analysis tool. The output char

Based on the guarantee of data quality, the distribution and contribution of data are analyzed by drawing charts and calculating some statistics (Pareto analysis), distribution analysis can reveal the distribution characteristics and distribution types of data, and for quant

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

that can be used to analyze and tune performance, as the functionality of these tools is integrated into the performance manager.Performance managerOracle Performance Manager is a performance analysis and Tuning tool integrated in Oracle Enterprise Management Packs (Oracle Enterprise Management packs) for nodes, The resources and operating system performance of the database and HTTP server are analyzed and

Analysis of the 10 most common mistakes in PHP programming 10 Currently learning PHP a lot of friends, in peacetime daily program development project always encounter a variety of problems, this experience will introduce PHP development in the 10 most common problems, I hope to be able to help friends. Error 1:foreach

statistical problem with the Chinese search engine, # minor Chinese search engines 'Baidu /. com ', 'search /. sina /. com ', 'search /. sohu /. com ', the three search engines. Includes patches for major search engines and portal websites in China. (unpack the patches and overwrite the original program directory under the LIB/directory) The log statistics system plays an important role in site user behavior analysis, especially for keyword access st

I. PrefaceAt present, the speed of network development is very fast, and more people are learning the network. People with a little knowledge about the network know it.TCP/IPThe Protocol is the basis of the network and the language of the Internet.TCP/IPThe Protocol has no Internet today. At present, there are a lot of people who are known to be engaged in the Internet. Many people are connected to the network from a clamp and a tester. If they are just playing online, just know a few ping and o

Spatial probability assessment and analysis tools 1. Spatial probability assessment analysis descriptionHere, the space probability refers to a probability of a thing happening somewhere. If there is such a proposition:A total of May cases occurred in the City in February 200, of which 16 occurred in Residential Area A. Are there any exceptions?The exception desc

of human resources, automated testing is imperative. Here are my top 8 Java test tools and frameworks. 1. Arquillian Arquillian is a highly innovative and extensible test platform based on the JVM, allowing Java developers to easily create automated integration, functionality, and acceptance testing. Arquillian allows tests to be performed at run time. Can be used to manage the life cycle of single or multiple containers, bundling test cases, depe

I. Analysis Tools 1. CPU performance analysis tools: Vmstat PS SAR Time Strace Pstree Top2 and memory performance analysis tools: Vmstat Strace Top IPCS Ipcrm CAT/proc/meminfo CAT/proc/slabinfo CAT/proc // maps3 and I/O performan

integers in ascending order.Condition: a maximum of 1 MB of memory is available, but the disk space is sufficient. The running time must be less than 5 minutes, and 10 seconds is the best result. Analysis: let's solve this problem step by step,1. Merge and sort. You may want to merge and sort disk files, but the question requires that you only have 1 MB of memory space available. Therefore, this method can

underlying things affect the performance of the application in unexpected ways, such as the inability of some programs to take full advantage of the cache, resulting in degraded performance. such as unnecessary calls to excessive system calls, resulting in frequent kernel/user switching and so on. Here is just for the following content of this article to do some foreshadowing, about tuning there are many things, I do not know more than know, I hope we can learn together progress.The Performance

residual item e T. if u t or e T is in the form of the following figure (a)-(d), it means that u t exists autocorrelation, if the UT or et render graph (E), then the U t does not exist autocorrelation. dw=2, dw=0, perturbation completely negative correlation, dw=4, perturbation completely positive correlation. Whether the residual is normal distribution can be observed QQ map distribution. 6. Outlier values may result in deviations from the fitted curve. Statistics are generally used to identif

Compared with static code analysis, profiling is a dynamic analysis method for studying program behavior by collecting information during program running. The purpose is to locate the part of the program that needs to be optimized to improve the program running speed or memory usage efficiency. The following three methods are used to collect information when a program is running: Event method: for Java, y

contexts (suppressed:11 from 6)Segmentation faultFrom the test output of valgrind, these errors have been found out.2.Callgrindand Gprof similar analysis tools, but it to the operation of the program observation is more nuanced, can provide us with more information. Unlike gprof, it does not require additional special options when compiling source code, but it is recommended to add debugging options. Callg

Google administrator tool for website diagnosis, because of the need to diagnose the performance of websites in search engines and website exceptions, it is very important to analyze indexes, Link pointing and spider crawling. The Google administrator tool not only provides complete Google administrator tools For website diagnosis, the analysis of indexing, Link pointing, and spider crawling is very import

This article is basically translated from Facebook engineer's articleThe speed up your app also added some of its own content. The following topics will be introduced Systrace Traceview Memory Profiling Allocation Tracker GPU Profiling Hierarchy Viewer Overdraw Alpha Hardware acceleration Systrace Systrace functions can be found in the as DDMS, but not very stable, so this is only the command-line mode.In addition Systrace can only

of the page. This baseline allows you to know whether you have optimized the baseline and helps you weigh the pros and cons. In this article, we will use chrome Developer Tools. The Performance Analyzer (profiler) is part of the chrome developer tool. Click the tool menu under the wrench to open it. Firebug also has some performance evaluation tools, but webkit kernel browsers (chrome and safari) are the b