performancewordpresspagespeedyslowdowntime

Why is my wordpress website so slow and am I having so much downtime?


I have used Yslow and PageSpeed to find the cause, but I can't seem to figure out why my blog http://www.fotokringarnhem.nl sometimes loads blazing fast (cached files I guess), and other times takes about 10 seconds or longer to load.

I am on a shared server, but haven't had problems like this with other websites on shared servers.

I'm using cloudflare to speed up my blog to speed things up, but to no avail.

Am I missing something?

Pingdom reports of last 30 days (also see http://stats.pingdom.com/hseaskprwiaz):

Edit 1: from basicstate.com

diagnostics

+dns +connect -request -response

So I guess it fails on the requests. Options to narrower it down?

Edit 2:

I used P3 (Plugin Performance Profiler) to determine which plugins caused the most loadtime. Turns out that User Access Manager caused about 60% of load time, so I deleted it.

This did something, I now get way less time outs, but it still takes a long time for anything to popup on the screen.

I used the plugin SQL monitor and determined there are 82 queries being executed on request which takes about 10 seconds!!!!


Solution

  • Use the P3 plugin and use this article to further optimize your website: http://andbreak.com/articles/guide-speed-wordpress/

    when all else fails, try switching providers

    Edit

    Turns out that deleting all automatically saved backups of pages and post as well as the concepts was the key. This dramatically cuts my query time to the server. Now at lightning speeds! Here is the report from the last few days: uptime: 99,21% overall average: 3.322 ms

    There is a usefull plugin for WP to also limit the number of autosaves and concepts for posts and pages: Revision control Results weren't instant by the way. Took a day to take effect.

    Basicstate results (clearly showing the improvement when I deleted the revisions and concepts on the 11th of 12th (not sure which)).

    date          uptime       dns   connect   request      ttfb      ttlb
    2012-09-18     98.97     0.031     0.047     0.047     0.353     0.475
    2012-09-17    100.00     0.031     0.047     0.047     0.389     0.810
    2012-09-16    100.00     0.029     0.045     0.045     0.342     0.499
    2012-09-15     93.81     0.029     0.045     0.045     0.739     1.035
    2012-09-14     98.97     0.053     0.068     0.068     0.387     0.565
    2012-09-13    100.00     0.058     0.074     0.074     0.499     0.853
    2012-09-12     95.00     0.030     0.046     0.046     5.994     7.024
    2012-09-11     96.97     0.051     0.096     0.096     9.707     9.949
    2012-09-10     73.15     0.027     0.043     0.043     6.765     6.952
    2012-09-09     43.48     0.027     0.121     0.121     3.652     3.724
    2012-09-08     31.82     0.028     0.045     0.045     2.757     2.867
    2012-09-07     71.93     0.026     0.042     0.042     5.917     6.091
    2012-09-06     60.49     0.027     0.043     0.043     4.590     4.751