microservice performance monitoring

large, you may need to add-j-xmx512m This parameter specifies the maximum heap memory, which is jhat-j-xmx512m-port9998/tmp/dump.dat. Then you can enter the host address in the browser: 9998 viewed:4. Jstat (JVM Statistical monitoring tool)Jstat [generaloption | outputoptions vmid[interval[s|ms] [count]]Vmid is the Java Virtual machine ID, which is generally the process ID on the Linux/unix system. Interval is the sampling time interval. Count is the

MySQL Key Performance Monitoring (QPS/TPS), qpstps Link: http://www.cnblogs.com/chenty/p/5191777.html During work, you may encounter various database performance tuning. In addition to viewing the execution duration of an SQL statement, you also need to have a better grasp of the overall processing capability of the system. QPS: Query per second, queries per s

the TCP data segment (TCP segments) transmitted per second. Reset: Indicates the number of times a TCP connection has transitioned from a established or close-wait state directly to a closed state. Attf: Represents the number of times a TCP connection transitions from a syn-sent or SYN-RCVD state directly to a closed state, plus the number of times a TCP connection transitions from SYN-RCVD state directly to listen state %retx: Represents the percentage of TCP data segment (TCP segm

)) 999 printf ("%d", i); 168}}Procedure trial Teaching Performance monitoring instructions, SQRT takes up the most time. P3 move the SQRT function outside the For loop,#include int i,bound; Bound =root (n); for (i =2;i 999 { if (n%i==0) 5288 return 0; 831 return 1; 168 }} Main () { int i, n; n=1000;

If the Java program consumes more resources and is unstable, it can use its own VISUALVM tool for monitoring and performance analysis, and can also generate snapshots for further analysis based on the application snapshot functionality it provides. The procedure is as follows:1. Execute the "JVISUALVM" command under the CMD console or Linux terminal of Windows to enter the Java VISUALVM Workbench. 2. Double

Xhprof is an open source PHP performance monitoring tool for Facebook that takes up little resources and can even be deployed in a production environment. It can be used in conjunction with Graphviz, can be visualized in the form of pictures to show Code execution time wget http://pecl.php.net/get/xhprof-0.9.2.tgzTar zxvf xhprof-0.9.2.TGZCD xhprof-0.9.2/extension//usr/bin/phpize./configure--with-php-config=

Tags: mysql, mariadbEvery day seems very busy, in fact, found themselves still very lazy, read a lot of books, not a good read. Recently, not so much work, decided to finish reading a few books, and continue to keep on updating. I hope I can persist in the end! The later content is all about MySQL management (performance tuning, high availability and monitoring), mariadb and MySQL, and your own experiments.

MySQL Management: Performance tuning, high availability and monitoring mini-bookmysql5.5.x Main Improvements1. Use InnoDB storage engine by default2. Make full use of CPU multi-core processing capability3, improve the number of brush write dirty pages and merge the number of inserts, improve I/O4, let Innodb_buffer_pool buffer pool of heat data to survive longer, pollution problems5, InnoDB Data recovery ti

executions, including user%, sys%, wait% and idle%;5, Cpu_summ: The occupancy of each CPU in the execution time, which contains user%, sys%, wait% and idle%;6, Diskbsize: the transmission block size of each hdisk in the execution time;7, Diskread: Average reading of each hdisk;8, Diskwrite: The average write situation of each hdisk;9, Diskxfer: Every hdisk I/O per second operation;10. Jfsfile: This sheet shows the percentage of space that is being used in each interval for each file system11, N

Tags: com disk HTTPS results technology share file Create systems PNG sys1 Linux performance monitoring-nmon1.1 Nmon downloadDownload path: http://nmon.sourceforge.net/pmwiki.php?n=Site.Download1.2 InstallationUbuntu:Installation: Apt-get Install NmonExecute: Nmon, enter Nmon interfaceInput C M D N T displays information such as CPU, memory, disk, network, process, and so on.1.3 Data acquisitionNomn Manual

performance counters for loadrunner monitoring today, I put up some of my counters and their threshold requirements, etc., which are for my Windows operating system, C/s structure of SQL Server database and Web platform. NET product test some of the counters; we can continue to add, On UNIX platform for Oracle database testing and Java EE Architecture and WebLogic aspects of the testing of friends, but als

template, the following accessoriesSecond, import the corresponding CPU, IO, hard disk and other performance monitoring template files, enter Perfmon in the run, click the Data Collector = "user-defined, such asRight-click, new Data Collector, select Import from Template, asClick Next, select System performance, click Browser, select the CPU information correspo

Reprinted from: https://www.lanhusoft.com/Article/125.htmlPreviously developed WebForm can open trace to track the page events, which for the performance of the diagnostic program is a great help, play a multiplier effect, today I will talk about using MVC development project debugging and performance monitoring. The EF framework automatically generates SQL state

main cache mode: Buffer Cache and Page cache. The former is for the disk block read and write, the latter for the file inode read and write. These caches can effectively shorten the time for I/O system calls (such as read,write,getdents). Remember that the memory is for use, not to take a look. Unlike windows, no matter how much of your real physical memory, he will have to take the hard disk swap files to read. This is why Windows often prompts for a lack of virtual space. You think, how borin

and sl.serial#=s.serial# and Opname like'rman%'and Opname not like'%aggregate%'and totalwork!=0and SofarIf I/O is not turned on Slaves,rman just use share pool.If I/O slaves is turned on for Rman backup (dbwr_io_slaves or backup_tape_io_slaves is set), the size of the large pool needs to be considered because Rman uses large pool.Oracle's official recommendation: Large_pool_size = Num_of_allocated_channels * (MB + (4 * size_of_tape_buffer))The media recovery for Rman turns on parallel recovery

Linux performance monitoring, testing, and optimization tools There are a lot of performance tools on the Linux platform, dazzled, long-term exploration and experience found that the best to use is those long-tested, simple gadgets. System Performance Expert Brendan D. Gregg updated his famous Linux

similarities with supermarket queues:r/s+w/s similar to the total number of people who have beenAverage Queue Length (AVGQU-SZ) is similar to the number of average queueing people in a unit timeAverage service time (SVCTM) is similar to the cashier's payment speedAverage wait time (await) is similar to the average wait time per personAverage I/O data (AVGRQ-SZ) is similar to the average number of things each person buysThe I/O operation rate (%util) is similar to the time scale at which a perso

There are a lot of performance tools on the Linux platform, a dazzling, long-term groping and experience finding the best thing to use is the proven, simple gadgets. Brendan D. Gregg, a system performance expert, updated his famous talk (Linux performance Tools) and slides on Linux in the recent LinuxCon NA 2014 conference.Compared with Brendan last year's talk,

many other diagnostic tools, you can see through what the database is doing, and even know the performance load of any time zone in the last 30 days and what the database is doing.Although there are excellent monitoring tools like "zabbix,pmm" in MySQL, they can only reflect some performance data curves of database history, for example, TPS is high, temporary ta

IntroductionThis article is the second article in the Java Performance Analysis tool series, the first article: Operating system Tools. In this article, you will learn more about Java applications and the JVM itself using built-in Java monitoring tools. There are many built-in tools in the JDK, including: Jcmd: Prints the class, thread, and virtual machine information for a Java process. Suitable f