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  1. #1
    SitePoint Member
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    Lightbulb Concurrent users calculation

    Hi guys,

    I needed some help in calculating how many concurrent users and connections my website can handle before it is finally launched and I invest money in bandwidth and hardware..

    (Site will be hosted in-house)

    Homepage size: Around 9KB
    Website will have user registration kind of thing, adding comments, viewing articles and so on.. so a lot of read and writes to the MYSQL database
    WAN connections Dual WAN (2Mbps each) so totals 4Mbps

    I am expecting roughly around 70,000 to 80,000 hits every day initially.

    Will this kind of internet connection be able to handle this traffic?
    How can I calculate the maximum concurrent user connections I can have on my website?

    Regards,

  2. #2
    SitePoint Addict talence's Avatar
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    4Mbps line should be enough for that amount of traffic, but it might perform a little slow. One more thing you should consider is the CPU and the Memory. What CPU are you using?
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  3. #3
    SitePoint Member
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    2 mysql servers -
    mySQL server is DL380 G3
    Memory 3GB
    CPU Dual core Intel Xeon 2.8 GHz
    master - slave replication configuration

    2 webservers -
    Memory 3 GB each
    Load balanced configuration

  4. #4
    SitePoint Zealot
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    I would suggest to do some load testing before deploying your website into production. There is number of tools (commercial and free) to generate traffic - I used Siege some time ago, and it worked well for me.

    This is probably the only way to asses what kind of traffic (how many concurrent users) your environment can handle.

  5. #5
    SitePoint Member
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    Hi mate,
    I will do so ..

    However, I would like to know is 4Mbps enough speed for handling 70,000 to 80,000 hits every day..

    Regards,

  6. #6
    SitePoint Wizard SiberForum's Avatar
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    Quote Originally Posted by ifanatic View Post
    Hi mate,
    I will do so ..

    However, I would like to know is 4Mbps enough speed for handling 70,000 to 80,000 hits every day..

    Regards,
    If there smoothly line for the visits without any peaks I suppose that would be enough If there are some peaks - depends. If you have constant pipe line all peaks might be lost


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