Memory Usage

  • 101Phil

    (@101phil)


    13 years, 11 months ago

    Hi All,

    Im have a VPS running the typical LAMP stack for WordPress. Im hosting about 20 WordPress sites.

    I have up until recently 1GB RAM, which I have double to 2GB after I saw that 70% of the memory was being used. So I doubled the RAM thinking I would get on top of it, what I noticed after a free -m command, is I have also doubled the usage.

    So Im now in the process of looking for the culprits on the site, Im thinking that it is either the WordPress plugins or my MYSQL config, though the sites arent too large.

    This is getting into new territory for me, so I would be really appreciative of any tips/techniques people have applied to track down memory usage.

    Also Im thinking that a Multi-site maybe the option, as I will only have one install of WordPress core and a standard set of plugins. Which I mostly have for the sites Im running though they each are currently seperate installs.

    Cheers,

    Phil

Viewing 5 replies - 1 through 5 (of 5 total)
  • Jarret

    (@jarretc)

    13 years, 11 months ago

    You probably want to read http://www.linuxatemyram.com/ as a good primer when it comes to how Linux uses it’s memory. Chances are you have more than enough but this issue is common when it comes to running your own VPS.

    Check that site out and if you figure out that you still need help with your memory come back and let me know. Depending on your setup, a caching plugin could help to reduce the load on the server along with a few other options.

    Thread Starter 101Phil

    (@101phil)

    13 years, 11 months ago

    Thank Jarret for the super fast reply.. I will do some homework and get back to you.

    Cheers,

    Thread Starter 101Phil

    (@101phil)

    13 years, 11 months ago

    Hey Jarret,

    I checked out the usage and after viewing the load times in Safari web inspector, I relised that the Firewall was blocking one of the plugins from performing the remote verification. That was causing an issue for this particular site.. Still seeing a 3.8 sec load time for a completely vanilla install, no plugins and the 2012 theme.

    What caching plugins do you recommend? I think its not going to be a bad idea to start optimising as much as I can..

    Thanks again for your link to the site.. It mad a lot more sence after reading it…

    Phil

    Jarret

    (@jarretc)

    13 years, 11 months ago

    http://wordpress.org/extend/plugins/w3-total-cache/
    http://wordpress.org/extend/plugins/wp-super-cache/

    Are both very popular caching plugins that you can use to help decrease the load time of your site. Although not a 100% guarantee they typically do help most of the time.

    If you want to get even more performance out of your VPS I would suggest looking into using caching like Varnish or Memcached. There are a ton of tutorials out there for squeezing the most out of a VPS server specifically with WordPress in mind.

    For an explanation on how one of the top WordPress specific hosts has their setup checkout – http://blog.page.ly/2012/02/building-page-ly-part4-page-ly-v3-scalable-and-fast-managed-wordpress-hosting/

    Thread Starter 101Phil

    (@101phil)

    13 years, 11 months ago

    Excellent thanks for that, I will start readiing..

    Was just on Twitter and read a tweet that they turned on SuperCache and site went from 1.85s with Total Cache to 0.65 with Super Cache..

    I will give both a go.. Thanks again for the info…

Viewing 5 replies - 1 through 5 (of 5 total)

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