Reprinted as follows:
http://www.2cto.com/article/201611/569100.html
Scenes:
When you use Jmeter to test, you should find that,
(1) When the thread is started, the test request will be sent directly;--If you want to simulate a high concurrency test in an instant, you need to increase the number of threads, which consumes the performance of the test machine and often cannot support a large number of concurrency , it is impossible to control the instantaneous concurrency of each test;
(2) If the constant throughput timer is used, a long-term concurrent test can be simulated, but it still cannot meet the stable instantaneous high concurrency test;
solve:
1. Use the rendezvous point;
Function: Block threads until the specified number of threads is reached, and then release them together, which can instantly generate a lot of pressure.
Quoting the words of the insect master, "The platoon leader of the Red Army said: Wait a minute! After all comrades have been assembled, everyone will rush together again! This will put the greatest pressure on the enemy."
Steps
1. Add a rendezvous point, which is synchronized timer in Jmeter;
b. The number of threads in the last batch is not enough for the number of rendezvous points;