How to use cache manager for multiple users in Jmeter

Question

I want to performance test a web application. My scenario is to take the metrics for multiple users (say 10) with cache. So i have added HTTP cache manager, but cache work per individual users. Is there any way to cache the files once and use it for 'n' number of users in jmeter. Even i tried to put cache manager outside thread group but it dint work.

It should work like cache the files once and use the cache for all the threads in jmeter. Is there any workaround for this ?

score 0 · Answer 1 · answered Mar 19 '18 at 14:56

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Cache is per user/thread, see HTTP Cache Manager doc:

Each Virtual User thread has its own Cache

So you can execute with multiple users/threads as 10, just define Number of Threads in Thread Group and each will save different cache

answered Mar 19 '18 at 14:56

Ori Marko

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Is there any way to make it global and use it for all users ? – Jugi Mar 19 '18 at 14:57

UBIK LOAD PACK · Answer 2 · 2018-03-19T20:26:15.153

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Create 2 Thread Groups for your 2 groups of users:

Put a HTTP Cache Manager in the one that simulates users with cache
Don't put a HTTP Cache Manager in the one that simulates users without cache

Of course Http Cache Manager will only have effect in the second iteration of the Thread

Example:

edited Mar 19 '18 at 20:26

answered Mar 19 '18 at 19:45

UBIK LOAD PACK

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Only one user should execute without cache and all other users should use cache – Jugi Mar 19 '18 at 20:18
So do what i say, put 1 for first Thread Group and as much as you want for other one – UBIK LOAD PACK Mar 19 '18 at 20:19
It's behaving like every users are having their own cache. – Jugi Mar 19 '18 at 20:20
Thanks for the response @ubik. – Jugi Mar 20 '18 at 00:54

How to use cache manager for multiple users in Jmeter

2 Answers2