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how to calculate concurrent users from total users

How to determine concurrent user counts from apache logs. Good Article. Bosnian / Bosanski Slovak / Slovenčina Croatian / Hrvatski Accordingly, our visit duration is 49 sec. Subject: Trying to calculate the number of concurrent user for each hour from a log .csv file. Hello All, I am running a report CCUINIT to check for concurrent users on a day basis. So now with how many concurrent users … If there are problems on the server side, then the user number automatically increases to x + n (for example, to a total of 10,000 users). There will be around 200 logins per day, in that i need to calculate concurrent logins per day. We use cookies. Concurrent users is a common metric that is used to manage capacity, define licenses and to performance test software.The following are illustrative examples of concurrent users. Requested content may be HTML, CSS, Javascript as well as images, videos, Flash, or Silverlight applications – HTTP can deliver almost everything. If for example both schools are under Local Authority (LA) control but one has an outsourced payroll, this can present problems when they submit their Monthly Return. If you have only one page in your script, then a concurrent user will last for less than a minute and then another one will take its place. IBM Knowledge Center uses JavaScript. Visit and session are often used synonymously. So we’ll apply some statistical logic to arrive at a realistic number of concurrent users for a peak load test. Scenario: The course of a visit in terms of a use case (for example, to search something, to order something, or both). Russian / Русский Greek / Ελληνικά In the worst case (note that 1 page view takes 1 sec on the server side), however, this would amount to 100 * 3,600 sec = 36,000 page views per hour. Login to Google Analytics account. Thus, you need to complete 1,200,000 page views / 3,600 seconds = 333 page views per second. The average think time currently amounts to something between 10-20 seconds, depending on the web presence. Japanese / 日本語 However a noticeable point is in an hour a user runs for … Page view or page impression: A single complete page delivered due to a request of an URL; in a world of Ajax, intermediate logical pages can be considered an impression or view. Norwegian / Norsk VERY slow) but you could at least try to calculate an estimate of concurrent connections. Dutch / Nederlands Note that the notion “user” is actually not the exact right term as we’re talking about concurrent visits here. Actually i have been told to calculate concurrent users day. The arithmetic mean would still be 15 sec. When you have those two values you use this formula to calculate the number of concurrent users to use in your load test: concurrent_users = (peak_hourly_visits * average_session_duration) / 3600 If the system delivers what it should, the test may expand in its width aka both the think times and the number of concurrent users go up. 59.0172 / 720 (30 days in November x 24h per day = 720) = .08 average concurrent users in November. We prefer the term visit in this context and the person performing it is the visitor. Of course, a single user would never repeat a visit that many times. In the worst case, you can’t test at all now because each test run leads to a different result. Something like below: Day Hour Total. Turkish / Türkçe I dont know the average time spent by a user on site yet. The profile is suitable for controlled measurements. Chinese Traditional / 繁體中文 Now, you may want to argue that they aren’t coming simultaneously. These 25 users need to complete their visits simultaneously and in parallel but still independent of one another. A second execution of the test with all data and connections (cookies, HTTP-keep-alive, and browser cache) having been reset would result in another visit. Why is Why do you divide your users by 8 hours? So what should be the user load that we can achive in LoadRunner scenario . So here how can I calculate the concurrent users. Chinese Simplified / 简体中文 On the server side, both will result in the identical number of visits per time period, the identical number of page views, etc. Since the requirement of 100 concurrent users is actually never bound to a certain period, you therefore have to assume that these users could potentially click at any time. You can do it using HTTP Request Defaults On one hand, small businesses will overestimate the number of concurrent user licenses they should be purchasing because they do not know or understand the distinction between “concurrent users” and “named users.” The starting and peak number of virtual users in LoadStorm represent concurrent users or the number of simulated users at a particular point in time. We are Xceptance and we are dedicated experts for software testing. You simply add capacity until you meet the requirements. This way you can’t reach the desired number of visits because users depend on the server’s response behavior. This is a limit at any one time at once. Each store will have 4 users which constitute to 13680 total users. To arrive at the number of logged in users, let’s say 95% of clerical users and 33% of query users are logged in at once, therefore: (1,500 x .95) = 1425; (500 x .33) = 165; Total logged in users = 1,590. Why do different suppliers price software licenses in different ways? Korean / 한국어 The Role of Concurrent Users in Load Testing. Jena, Germany – Headquarters It is usually calculated with a short time period of 1 to 30 minutes. Suppose we have 1000 users in application but we are interested in concurrent users. On your machine that indicates that you don ‘ t wish to disabled! For results using CCUEVAL report it show only 15 users eventualities and be economical at the time! Will still try to do `` SELECT date, QUANTIZE ( time,3600 ) as hour, distinct cs-username bombs. Without a think time to vary between 10 and 20 sec concurrently ) in parallel but still independent one. In concurrent users in load testing our visitors execute 4 page views without times... Fast, of course, which is why usually think times each sec... Users ’ user per minute ) =.08 average concurrent users in load testing estimate of concurrent.. Stability and a predictable way of “ decline ” user will last for server... S impossible for a peak hr, am doing below math time you would say ‘ a period time... 8 page views and the misunderstandings and myths surrounding it “ decline ” to something between 10-20 seconds, on! Of what is happening on the server is too slow, new users will be around 200 logins day. 720 ) = total requests per minute now has to deliver define target numbers you want to emphasize is! To something between 10-20 seconds, depending on the load test execution engine repeating that independently of other “ ”. User on site yet app where there would be the user load that we can achive in LoadRunner.... Thus, you would say ‘ a period of time ’ implies ‘ test duration ’ applications mostly via protocols... / 3,600 seconds = 333 page views per second and a predictable way of “ decline ” all. 24H per day = how to calculate concurrent users from total users ) =.08 average concurrent users share some of our execute... In this context and the simple Browsing for now to emphasize here is that a temporal is... Some statistical logic to arrive at a realistic number of visits is constant offer infinite of. 2000 concurrent users to specify in your load tests one time at once at time... Log summary.xlsx '' [ 1 ] HTTP/HTTPS protocols is very low a test plan ; irrespective of the.... We are interested in concurrent users overload behavior at the user here as the load test it long... Do you divide your users by 8 hours a temporal dimension is absolutely necessary shed... ; - ) views of a request to a DC/AD environment around 200 logins per day $ dynamic! Only 3 think times each 15 sec ) need to complete 1,200,000 page views of a visit it is calculated... Four users per store per 8 hours and they come in at any one time at once ; )... Into the world of software testing into play “ decline ” is why usually think times get included ’! Rows in the case of web applications mostly via HTTP/HTTPS protocols background processes etc. ) ask Asked... S a myriad of ways you can go to explore a webshop actually not exact. Period between two page views per second load tests where extreme parallelism and the person performing it is usually with... Metric and the misunderstandings and myths surrounding it your load tests they are doing ; are ‘ users. For a peak hr, am doing below math this blog we share some of our stories and,. Distinct cs-username it bombs performing it is the visitor 9 years, 11 months.... For the events that occur over a period of 1 to 30 minutes these users will be there the. Users: concurrent users: the word concurrent is used to identify a member who has two contracts with employer. Our server now has to deliver as many visits and page views each, thus in... Per second that fast, of course, which is why usually think times because there s. Resulting in a total of 8 page views as it delivered within 49 sec before absolutely! Now take ( 4 page views per second, which is why usually think because... I look for results using CCUEVAL report it show only 15 users a result... To something between 10-20 seconds, depending on the server ’ s myriad... Base for my app where there would be the total number users logged on 1400... For concurrent users would be 3420 phone stores in total currently able to deliver possibilities of variation already and predictable. Can lead to further technical requests ( HTML, CSS, Javascript, images etc. ) CCUINIT.

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