how to make the concurrently issue happen more frequently?
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This is a general question. Suppose server has a concurrency issue. Client can send multiple requests at the same time to trigger the issue. Then how to make the issue happen more frequently?

1) Client need to be fast enough to send more request at the same time

2) Server need to be fast enough

Will they help recreate the issue? Or whether it is the other way around? Server need to be slow?