How many threads can JMeter handle?

How many threads can JMeter handle?

JMeter allows you to run multiple processes in the same box, and it’s usually pretty reliable generating up to 200 threads per JMeter instance. If you need more than that, I’d recommend using multiple JMeter instances. A modern machine with some tweaking can easily generate 500 to 1000 threads.

How does JMeter calculate thread count?

To get the number of the current thread (out of 5 in your case) use ctx. getThreadNum() which will get the number of the thread. To get the total number of threads being used by jMeter you can use ctx. getThreadGroup().

What is thread count in performance testing?

The Thread Count parameter specifies the maximum number of simultaneous requests the server can handle. The default value is 5. When the server has reached the limit or request threads, it defers processing new requests until the number of active requests drops below the maximum amount.

How many threads we can run at a time?

In context of Operating System, only one thread can run at a time. Even your application has multiple threads, at a time one of the thread will be executing and rest will be waiting for their turn.

What is thread and ramp-up period in JMeter?

The ramp-up period tells JMeter how long to take to “ramp-up” to the full number of threads chosen. If 10 threads are used, and the ramp-up period is 100 seconds, then JMeter will take 100 seconds to get all 10 threads up and running. Each thread will start 10 (100/10) seconds after the previous thread was begun.

What is JMeter loop count?

Loop Count: You can set the number of iterations for each user in the group using Loop Count. For example, the above configurations with: Number of threads: 10, Ramp-Up period: 10 seconds and Loop Count: 1 means that JMeter will take 10 seconds to get all the 10 threads up and running.

How do you determine number of threads?

Ideally the total thread count for all the jobs should be the number of cores of the system, except on systems that support hyper-threading, in which it should be twice the number of cores. So if the system doesn’t have hyper-threading, there are 8 calculations running, each should run in one thread.

How many thread should I use?

General rule of thumb for threading an application: 1 thread per CPU Core. On a quad core PC that means 4. As was noted, the XBox 360 however has 3 cores but 2 hardware threads each, so 6 threads in this case.

Can JMeter handle more than one thread per test?

Considering only the JMeter resource consumption, if you find that the JMeter host can’t handle the number of threads you want the resolution is the same as for running out of memory: more of the resource, simpler test plan, less threads, or JMeter server.

How many threads are there in a Thread Group in Java?

Number of threads in thread group can be up to java.lang.Integer.MAX_VALUE which is 2,147,483,647 but in fact it depends on multiple factors: Follow recommendations from 9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure article to get the most of single JMeter instance.

What is the maximum number of users JMeter can handle?

up vote 4 down vote. ‘10000 users’ using jmeter is pretty tough on single machine considering given configuration, the maximum number of threads supported by jmeter will be 300 to 400 depending on your script, eventually jmeter will get stuck with ‘OutOfMemoryError’ and it will create a very large dump file.

How many seconds does it take for a thread to start?

Each thread will start 1 second (10 divided by 10) after the previous thread was begun. Here’s another example from the JMeter Thread Group user manual: If there are 30 threads and a ramp-up period of 120 seconds, then each successive thread will be delayed by 4 seconds.