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Locust is an easy-to-use, distributed, user load testing tool. It is intended for load-testing web sites (or other systems) and figuring out how many concurrent users a system can handle. The behavior of each locust (or test user if you will) is defined by you and the swarming process is monitored from a web UI in real-time. This will help you battle test and identify bottlenecks in your code before letting real users in. WWW: https://locust.io/ Approved by: araujo (mentor), rene (mentor) Sponsored by: cleverbridge AG Differential Revision: https://reviews.freebsd.org/D18895
69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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This is an example of a locustfile that uses Locust's built in event hooks to
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track the sum of the content-length header in all successful HTTP responses
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"""
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from locust import HttpLocust, TaskSet, events, task, web
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class MyTaskSet(TaskSet):
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@task(2)
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def index(l):
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l.client.get("/")
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@task(1)
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def stats(l):
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l.client.get("/stats/requests")
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class WebsiteUser(HttpLocust):
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host = "http://127.0.0.1:8089"
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min_wait = 2000
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max_wait = 5000
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task_set = MyTaskSet
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"""
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We need somewhere to store the stats.
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On the master node stats will contain the aggregated sum of all content-lengths,
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while on the slave nodes this will be the sum of the content-lengths since the
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last stats report was sent to the master
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"""
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stats = {"content-length":0}
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def on_request_success(request_type, name, response_time, response_length):
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"""
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Event handler that get triggered on every successful request
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"""
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stats["content-length"] += response_length
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def on_report_to_master(client_id, data):
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"""
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This event is triggered on the slave instances every time a stats report is
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to be sent to the locust master. It will allow us to add our extra content-length
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data to the dict that is being sent, and then we clear the local stats in the slave.
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"""
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data["content-length"] = stats["content-length"]
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stats["content-length"] = 0
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def on_slave_report(client_id, data):
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"""
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This event is triggered on the master instance when a new stats report arrives
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from a slave. Here we just add the content-length to the master's aggregated
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stats dict.
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"""
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stats["content-length"] += data["content-length"]
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# Hook up the event listeners
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events.request_success += on_request_success
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events.report_to_master += on_report_to_master
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events.slave_report += on_slave_report
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@web.app.route("/content-length")
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def total_content_length():
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"""
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Add a route to the Locust web app, where we can see the total content-length
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"""
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return "Total content-length recieved: %i" % stats["content-length"]
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