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Moved My Community To A (Managed) VPS - Need Optimization Advise

Discussion in 'Server Configuration and Hosting' started by Divvens, Apr 16, 2015.

  1. Divvens

    Divvens Well-Known Member

    Only yesterday we moved our community onto a VPS server as it had outgrown shared and premium (semi-shared?) hosting. This is my first time and its a managed server, so I don't need to worry about security and basic setup/configuration. But I would require some insight into how to better the performance and optimize it for my board. I know optimization is a lengthy process after reviewing data over time, thus I am not currently jumping straight into it and will let the forum be as-is until after our first wave of high traffic has passed to see where we need to optimize.

    Please do note, that while giving suggestions or providing instructions be as specific as you can. I am new to this and would probably need the extra explanation until I get a hang of it.

    To begin, my Forum Statistics:
    Discussions: 7,157
    Messages: 418,347
    Members: 3,075

    We have 300~400 users online at any given time (users i.e including members, bots etc). During peak/high traffic time (three days every week, Thursday - Friday - Saturday) we have a minimum of 800~900 users online, with the highest being 1300. We average 9,000~10,000 visits a day with (currently) an average of 15/16gb bandwidth per day.

    VPS Specifications:
    Intel(R) Xeon(R) CPU E5-2650 v2 1 Core @ 2.60GHz
    20 GB SSD Disk Space
    600 GB Bandwidth
    1 GB Dedicated Ram
    1 GB Burstable Ram (VSwap)
    LiteSpeed enabled
    OS: CentOS 6 x86_64

    Currently only using the basic cache system mentioned in the XenForo Manual.

    So I'd like to hear your suggestions for what I should watch out for/be ready during high traffic, what to monitor etc. in order to get reports for optimizing the server better :)
  2. Divvens

    Divvens Well-Known Member

    Currently with 225 users online:
    Memory Usage 29% | 296.35 MB of 1 GB Used / 727.65 MB Free
    VSwap Usage 28% | 289.66 MB of 1 GB Used / 734.34 MB Free
  3. RoldanLT

    RoldanLT Well-Known Member

    Basically Implement all the caching available for XenForo.
    • Memcached / LibMemcached
    • Use PHP 5.6 with Zend Opcache

    Plus use Nginx.
  4. Sheratan

    Sheratan Well-Known Member


    First thing to do is check firewall setup with iptables -L

    Next, you can try ro run mysqltuner.

    If you use stock mysql, percona or mariadb is good replacement.

    And what is your php version?

    Sorry for not being spesific. Im on mobile.
  5. Sheratan

    Sheratan Well-Known Member

    He already use litespeed...
  6. Divvens

    Divvens Well-Known Member

    It is with c-panel and WHM :) Also uses SolusVM for VPS Management.

    Php version is: 5.4.39

    I'll check up on what is mysqltuner :D

    How would I do this (or check if its already done?) You can take your time to answer once you are on your system :)
  7. Sheratan

    Sheratan Well-Known Member

    Ah a cpanel. Then for a someone who still learn to manage a server is great.

    You can grab mysqltuner from here: https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl

    Just do this from ssh:
    wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl
    chmod +x mysqltuner.pl
    perl mysqltuner.pl

    Because it's a managed server, you can give the results to your host provider.

    PHP 5.4.39 is good. If you had plenty of RAM, you can try to install php cache like xcache. If you choose to install xcache, setup it's cache. I will tell you after you install it (if you want to use it :D)

    For firewall, I would recommend to use config server firewall. Your host probably know about this. If you internet connection using dedicated IP, you can try whitelisting your IP.
    Divvens likes this.
  8. Divvens

    Divvens Well-Known Member

    My host installed Memcache, and I installed [bd] Cache add-on (since for @Slavik's LiteSpeed add-on I required to purchase a different LS license).

    The server seems to be doing pretty well, DEDICATED RAM usage is under 400 MB at any given time, Burst Ram is around 300 MB and below. The only problem I am facing is with CPU at times, the loads go high and the site gets a tad bit sluggish (not very slow but at the same time not as fast as usual).

    Is there anything specific to be done with XenForo or MYSQL or any other aspect to increase optimization and reduce CPU loads?

    I started a ticket with my host, and this is the response:
    So yea even I'd like to know what I could optimize better before jumping the gun and spending more $$$
  9. Divvens

    Divvens Well-Known Member

    I seem to have not really configured Memcache earlier, and with the assistance of my host I've set it up properly and started the back-end cache as per the manuals of XenForo.

    Will monitor server loads and see if there is improvements :D

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