performance-testing

问题 Preface This issue seems to only affect Chrome/V8, and may not be reproducible in Firefox or other browsers . In summary, the execution time of a function callback increases by an order of magnitude or more if the function is called with a new callback anywhere else. Simplified Proof-of-Concept The same callback logic is stored in two different variables. Calling test(callback1) arbitrarily many times works as expected, but once you call test(callback2) , the execution time of the test

问题 My Test structure in Jmeter Thread group (2 users) Http request Listener For each iteration same form_key values are getting in response which should not be. How to get unique form_key in response for each iteration Jmeter Test result screenshot 回答1: I cannot reproduce your issue using one of the online Magento demo instances, in particular this one: http://demo-acm-2.bird.eu/customer/account/login/ As you can see, each time form_key is different for each user for each iteration. If you're

问题 I need to run a performance test against an application based on Elastic Beanstalk located in AWS fronted by and ELB. I expect traffic to be around 25 Gbit/s As per AWS requirements, I am using another account (dedicated to tests) from my AWS organisation. The application is a production application in another account of my AWS organisation. My performance test will use the DNS entry of the production website, it will be executed by EC2 instances in subnet of a VPC that has an internet

问题 I need to run a performance test against an application based on Elastic Beanstalk located in AWS fronted by and ELB. I expect traffic to be around 25 Gbit/s As per AWS requirements, I am using another account (dedicated to tests) from my AWS organisation. The application is a production application in another account of my AWS organisation. My performance test will use the DNS entry of the production website, it will be executed by EC2 instances in subnet of a VPC that has an internet

问题 I need to run a performance test against an application based on Elastic Beanstalk located in AWS fronted by and ELB. I expect traffic to be around 25 Gbit/s As per AWS requirements, I am using another account (dedicated to tests) from my AWS organisation. The application is a production application in another account of my AWS organisation. My performance test will use the DNS entry of the production website, it will be executed by EC2 instances in subnet of a VPC that has an internet

问题 Is that possible to execute 10000 concurrent user in jmeter? If so how? What should be the ram-up time for this scenario?? 回答1: JMeter's limit of virtual users per Thread Group is very high, to be precise it's 2,147,483,647 The question is: do you have good enough hardware to simulate 10 000 users from a single machine. The process of checking it looks as follows: Make sure to follow JMeter Best Practices Set up monitoring of the CPU, RAM, Network, Swap, Disk usage on JMeter side, it can be

问题 I am working with cassandra databse and I am trying to get data from cassandra as shown below in my code. In the CassandraUtils constructor I initialize to cassandra cluster once and then I call GetAsync method to get data from cassandra. public class CassandraUtils { public CassandraUtils(string endpoints) { // connect to cassandra cluster here } /** * * Below method gets data from cassandra by making multiple async calls for each clientId. * */ public async Task<IList<Item>> GetAsync(IList

问题 I want to load / performance test a web application which uses angular 6+ as the frontend-framework. The application is quite big and uses lots of wizards / modals etc. I want to do some "real" e2e-frontend-tests (not just testing API-calls, but also js-rendering etc.) What are the current state-of-the-art approaches and tools to test applications like this? To clearify, i want to do some real e2e performance test like e.g. open a browser in headless mode, open a wizard and get the time it

问题 Environment: Apache-tomcat-7.0.53, CentOS release 6.6 (Final), Java 1.8, Mongo 2.6 Design of our App We have most of the calls handled with normal servlets(traditional synchronous ones). We do have a 2 asynchronous servlets(servlet 3.0) which delegate their work to ThreadPoolExecutors(threads named http-async-workers). Problem: We have a database heavy application, but it was performing quite well until 3500ccu. But when we ramped up the CCU to 7000CCU, to measure the scalability factor, we

问题 I would expect SSE to be faster than not using SSE. Do I need to add some additional compiler flags? Could it be that I am not seeing a speedup because this is integer code and not floating point? invocation/output $ make sum2 clang -O3 -msse -msse2 -msse3 -msse4.1 sum2.c ; ./a.out 123 n: 123 SSE Time taken: 0 seconds 124 milliseconds vector+vector:begin int: 1 5 127 0 vector+vector:end int: 0 64 66 68 NOSSE Time taken: 0 seconds 115 milliseconds vector+vector:begin int: 1 5 127 0 vector