SPONSORS:






User Tag List

Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Results 1 to 5 of 5
  1. #1
    Senior Member
    Join Date
    Jan 2001
    Location
    Pune, Maharastra, India
    Posts
    237
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Total Downloaded
    0

    What are the guidelines for Increasing the Load ( VUsers)

    Does any one have guidelines.

    How To Increase Load for running a scenario?

    Usually I start with 1 VUser then I run the same scenario for 5 VUsers, then 10, then 20, 30 .... moves on as per the requirements say client wanted to run a scenario for 100 Users.

    I am looking for the steps to increase the load

    Is 1, 5, 10, 20, 30, 50 ... is correct
    or
    Is 1, 10, 20, 30, 50, 75, 100 is correct

    Any guidelines - On what factor I should step or decide this

    Pl. provide

    Govind

    ------------------

  2. #2
    Junior Member
    Join Date
    Feb 2001
    Posts
    24
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Total Downloaded
    0

    Re: What are the guidelines for Increasing the Load ( VUsers)

    Hi,
    Typically, you are looking for a linear increase in response times vs number of concurrent users.

    Any non-linear increse in response time may indicate a bottleneck or scalability limit with your Application under test or its environment.

    So, you should step up 'linearly' during your test scenario. You can do this by increasing the load in the same test scenario by using the scheduler app in LoadRunner.

    Note: You should provide enough iterations so the initial users don't finish before the last group are running.

    By doing this during the same sceario you can set up to release an extra 10 users every x minutes or seconds until you hit your desired target.

    Hope this helps,
    David


    ------------------

  3. #3
    Senior Member
    Join Date
    Nov 2000
    Location
    pittsburgh,pa..usa
    Posts
    315
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Total Downloaded
    0

    Re: What are the guidelines for Increasing the Load ( VUsers)

    I agree with Dave except that I am not fond of iterations unless I am just loading down the server. I prefer to send X users per second vs. minutes to truly see performance results and where bottlenecks lie in the application and server setups.

    ------------------
    -- Mike --
    -- Mike --

  4. #4
    Moderator JakeBrake's Avatar
    Join Date
    Dec 2000
    Location
    St. Louis - Year 2025
    Posts
    15,609
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Total Downloaded
    0

    Re: What are the guidelines for Increasing the Load ( VUsers)

    I agree with Dave and Mike (Hi Mike!) - except:

    I like to have at least one test where there is enough data to iterate such that when at peak loading - you can sustain that peak load for at least 20 minutes in order to give servers enough time to thrash through firing up the required processes and/or threads as a result of the demands of your scenario. You want the system(s)-under-test to be stable.

    (Of course this all depends on what questions you are trying to answer with your test(s)).

    ------------------
    Jim Pensyl

  5. #5
    Junior Member
    Join Date
    Apr 2001
    Location
    UK
    Posts
    17
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Total Downloaded
    0

    Re: What are the guidelines for Increasing the Load ( VUsers)

    Jim is right, you need to do a stable test over and above stepping up users but 20 mins will probably only find disk q'ing problems and similar. I would do 3 hrs to look for memory leakage and database concurrency issues if this is a web app (as opposed to a web site).


    ------------------
    http://www.4qa.co.uk

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search Engine Optimisation provided by DragonByte SEO v2.0.40 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 10.00%
vBulletin Optimisation provided by vB Optimise v2.7.1 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBNominate (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Username Changing provided by Username Change (Free) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
BetaSoft Inc.
Digital Point modules: Sphinx-based search
All times are GMT -8. The time now is 10:49 AM.

Copyright BetaSoft Inc.