Is there a way without creating a separate cache for each individual user?

[caocanhlinh]

Because when each user creates their own cache file for common content, it will create a lot of cache files.

I want to turn off the feature of creating separate cache for each user, how should I do it? And what should be done for some tasks that need to use their own cache?

Thanks.

[caocanhlinh]

In the file BaseCacheProfile.php, in the function useCacheNameSuffix I return an empty string that is resolved.