Locust is an open source load testing tool. Use Python code to define user behavior, or to simulate millions of users.Locust is a very simple to use, distributed, User load testing tool. Locust is primarily a load test for websites or other systems that can test how many use
greater the load weight. Max_fails : The default number of times to allow requests to fail is 1. when the maximum number of times is exceeded, the return Proxy_next_upstream module-defined errorFail_timeout:max_fails The time of the pause after the failure. Backup: When all other non- backup machines are down or busy, request the backup machine. So the pressure on this machine is the lightest.
Iii.TestRequest aaa.test.com, via nginx
Sometimes you need to have the same page open at the same time on the phone and the PC, one of the ways is to determine the different resolution to load different CSS
The small series summarizes several ways to load CSS separately:1. More complex use JS to judge the load of different CSS (pro-Test available)But th
service is started, you can see that the following processes are running through the ldquo;ps ndash;efrdquo; command:[Email protected] ~]# Ps-ef|grep nanny/usr/sbin/nanny-c-H 192.168.60.132-p 80-s get/http/1.0\r\n\r\n-x http-a 15-i//usr/sbin/nanny-c-H 192.168.60.144-p 80-s get/http/1.0\r\n\r\n-x http-a 15-i/Among them, nanny is the Pulse service daemon, used to monitor the operation State of the LVS service node, similar to the Ldirectord node monitoring function.Second,
The previous article has said, recently received the task of optimizing interface and SQL, contacted the druid, monitoring the SQL, and now start the interface of the stress test, here using Apache's own performance test tool--ab (not Anglababy OH)
First look at AB. Apache's AB command simulates multithreaded concurrent requests, tests server load pressures, and
Article Title: ApacheServer Load Capacity Test. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
It is also common that the server load is too large and the program efficiency is affected. We need to
The server load is too large to affect program efficiency is also very common, we need to test this. Here I take the current most common Apache server as an example.
The Apache server comes with a tool called AB (Apachebench), which is in the bin directory. Using this lightweight tool we can load test the server to see
The server load is too large to affect program efficiency is also very common, we need to test this. Here I take the current most common Apache server as an example.
The Apache server comes with a tool called AB (Apachebench), which is in the bin directory. Using this lightweight tool we can load test the server to se
the queue, but the next 2 doctors are in a free state.Load: Waiting classmate, due to waiting for more classmates, so load value is higherCPU usage: Only one doctor is working, so CPU utilization is 33.33%2, load low, high CPU utilization:Suppose there are as many doctors in the B-Ultrasound department as the eye, but each doctor's work is independent.The time to come to a new classmate is about checking o
Suppose you are going to publish an ASP program that is expected to be used by 1000 of users. You know clearly that your program can handle at least two concurrent users, because you and your partner can click on the ASP program all day without any problems. You are wondering whether two users can accurately reflect the compression capability of your program. Of course you can use standard test methods (publish your program and expect the best result
In our last article, we talked about the modeling method for the performance test load model when it landed, and here we start with the first and most commonly used method:Raw Data analysis methodBusiness scenario modeling is mainly about how users use the system, so it is the most effective and accurate method to analyze and model the original data used by the system, i.e. log. The so-called log refers to
Build an LVS load balancing test environment
There are many ways to achieve Server Load balancer: local tyrants directly F5, the best performance, the most expensive
If you have no money, you can use Apache. Nginx works on the fourth layer of the network. Although its performance is normal, it is flexible. For example, you can map port 80 to port 8080 of The Real
Because MySQLCluster implements automatic data synchronization and other functions, a layer of Amoeba serves only to share the load of the SQL layer, therefore, it is necessary for Amoeba based on the traditional single point MySQL service to help us do something. We will not repeat the environment building process. We will start two independent
Because MySQL Cluster itself implements automatic data synchronization and other functions, the installatio
into a war package, a war packet called Bbb.war, the war package into the WebApps of Tomcat, you can directly access Http://localhost/bbb.war can be accessed as a result650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M02/85/DF/wKioL1etN_nSHpJfAAAuegFCbBo965.png-wh_500x0-wm_3 -wmp_4-s_576943858.png "title=" qq picture 20160812104002.png "style=" Float:none; "alt=" Wkiol1etn_ Nshpjfaaauegfcbbo965.png-wh_50 "/>So: The above results need to refresh the page, if the session is not hit, the UU
1.AB tools are Apache's own tools to test server load capacityParameters for 2.ab Tools-V: Version-C: Concurrency number-N: Number of requests-T: Maximum number of seconds to test3. Example: Ab-c 100-n 100-t 10 requested destination addressAb-c 100-n 100-t http://127.0.0.1/index.phpThe test results are also at a glance and the throughput rate tested is:requests p
What is deferred loading?Lazy loading is also called load-on-demand, which means loading the master information first, and then loading the information when needed.Demand:Query the order information, when necessary to query the user informationImplementation method:Write two statement, one statement is to query the order information, one is to query the user information, but query the order Information statement to use the RESULTMAP tag for results ma
Web site pressure Load test tool: The Web version has died, had to send everyone stand-alone version of the preface:Recently the boss cash turnover out a little problem, wages for a long time did not send, so temporarily idle at home, wait for the boss to get money comeback news;QQ Group, occasionally sometimes people ask, the original distributed Web site load T
Everyone should have heard, Nodejs superior performance, concurrency is also very good, then we use Apache AB to the empty framework of node test, and then to some of the site test, or less certain reference meaning.The Apache AB Test tool is an analog multi-threaded concurrent request that has n multiple requests sent to the server at the same time, and also mak
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