Make wait_time default to zero (vote up/down for this ticket please :)

Today all Locust classes need to have a wait_time specified. I suggest we change that to make no wait time the default. I think having no wait time is what a reasonable user would expect, and it significantly lowers the bar for new locust users.

Please vote up or down (or add any arguments you may have).

This would change the simplest possible locust file from:

from locust import Locust
from locust.wait_time import constant
class MyLocust(Locust):
     wait_time = constant(0)
     ...

To:

from locust import Locust
class MyLocust(Locust):
     ...

[cyberw]

Thanks for your input!

1. In my mind a locust instance represents a single concurrent user. If I have a test case where I want to simulate ~100 concurrent users (maybe selected from a database/csv of 100.000 users) I would use 100 locusts, not 100.000. This very much represents “real users”, but having a sleep after each iteration is not “more real” (because the time between one user leaving and another user arriving is not typically something that is a key feature of the load/realism)

2. Having zero wait time is the standard in pretty much every other load test tool I have seen and I believe 99.9% of users would expect a zero sleep time between iterations if there isn’t one specified so I think readability does not suffer at all.

I dont expect to convince anyone but these are my main arguments 😃

[anuj-ssharma]

Sorry, but I’ll have to vote down for this, for a couple of reasons:

1. A locust class represents a real user and a real user would not ever have a 0 second wait time. By setting the default to 0 seconds we are moving a locust away from representing a real user.
2. If in a case the wait time is 0 seconds, then asking it to be written explicity would improve readability.

Just my 2 cents.