Performance Issues and Server Load Due to Customer Reviews for WooCommerce Plugi

  • Resolved gifiy

    (@gifiy)


    7 months, 3 weeks ago

    Dear Customer Reviews for WooCommerce Team,

    I am reaching out to address significant performance issues and server load attributed to your plugin on my website. Recently, I’ve encountered difficulties with page speed, coupled with error messages indicating website downtime, all of which appear to be linked to your plugin. Please review the details from Siteground-Support below:

    “

    The reported issue was due to a lack of RAM and a high load on the server.

    09:23:00 up 15 days, 8:38, 1 user, load average: 53.95, 47.19, 27.87

    The source of the issue was the significant amount of processes triggered by the website simultaneously:

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    22469 u10-ipt+ 20 0 274332 161728 25088 D 4.0 1.9 0:01.21 /usr/local/php74/bin/php admin-ajax.php
    22698 u10-ipt+ 20 0 162528 58240 24192 D 4.0 0.7 0:00.20 /usr/local/php74/bin/php admin-ajax.php
    22512 u8-fhvi+ 20 0 294884 183680 25536 D 3.0 2.2 0:01.11 /usr/local/php74/bin/php wp-cron.php
    22518 u8-fhvi+ 20 0 294884 184128 25984 D 3.0 2.2 0:01.06 /usr/local/php74/bin/php wp-cron.php
    22524 u8-fhvi+ 20 0 307372 191744 26880 D 3.0 2.3 0:01.09 /usr/local/php74/bin/php admin-ajax.php
    22525 u8-fhvi+ 20 0 296932 182336 27328 D 3.0 2.2 0:01.12 /usr/local/php74/bin/php index.php
    22634 u10-ipt+ 20 0 216108 101696 25984 D 3.0 1.2 0:00.65 /usr/local/php74/bin/php index.php
    22644 u10-ipt+ 20 0 199604 88256 24640 D 3.0 1.1 0:00.51 /usr/local/php74/bin/php index.php
    22699 u10-ipt+ 20 0 160480 60928 24192 D 3.0 0.7 0:00.17 /usr/local/php74/bin/php index.php
    22457 u8-fhvi+ 20 0 315428 203392 26880 D 2.0 2.4 0:01.44 /usr/local/php74/bin/php index.php
    22459 u8-fhvi+ 20 0 315428 202496 25536 D 2.0 2.4 0:01.39 /usr/local/php74/bin/php wp-cron.php
    22513 u8-fhvi+ 20 0 296932 182336 25088 D 2.0 2.2 0:01.08 /usr/local/php74/bin/php wp-cron.php
    22521 u8-fhvi+ 20 0 296932 183680 27328 D 2.0 2.2 0:01.03 /usr/local/php74/bin/php index.php
    22554 u8-fhvi+ 20 0 251748 134400 24640 D 2.0 1.6 0:00.77 /usr/local/php74/bin/php index.php
    22558 u8-fhvi+ 20 0 251680 137088 25984 D 2.0 1.6 0:00.80 /usr/local/php74/bin/php index.php
    22560 u8-fhvi+ 20 0 259716 142464 25984 D 2.0 1.7 0:00.80 /usr/local/php74/bin/php admin-ajax.php
    22576 u8-fhvi+ 20 0 251680 138880 25984 D 2.0 1.7 0:00.81 /usr/local/php74/bin/php wp-cron.php
    22626 u10-ipt+ 20 0 237256 118272 25984 D 2.0 1.4 0:00.68 /usr/local/php74/bin/php admin.php
    22633 u10-ipt+ 20 0 216108 102592 25536 D 2.0 1.2 0:00.67 /usr/local/php74/bin/php index.php
    22636 u10-ipt+ 20 0 199604 88704 25536 D 2.0 1.1 0:00.57 /usr/local/php74/bin/php index.php
    22643 u10-ipt+ 20 0 199604 88256 25536 D 2.0 1.1 0:00.48 /usr/local/php74/bin/php index.php
    22657 u8-fhvi+ 20 0 185120 73920 25088 D 2.0 0.9 0:00.48 /usr/local/php74/bin/php index.php
    22675 u10-ipt+ 20 0 185196 78848 25984 D 2.0 0.9 0:00.48 /usr/local/php74/bin/php index.php
    22679 u10-ipt+ 20 0 185208 78400 25088 D 2.0 0.9 0:00.44 /usr/local/php74/bin/php admin-ajax.php
    22687 u10-ipt+ 20 0 162528 57792 25088 D 2.0 0.7 0:00.29 /usr/local/php74/bin/php index.php
    22706 u8-fhvi+ 20 0 152288 54656 25536 D 2.0 0.7 0:00.11 /usr/local/php74/bin/php index.php
    22471 u10-ipt+ 20 0 259852 151424 25536 D 1.0 1.8 0:01.12 /usr/local/php74/bin/php index.php
    22493 u10-ipt+ 20 0 259852 149632 24640 D 1.0 1.8 0:01.09 /usr/local/php74/bin/php index.php
    22494 u10-ipt+ 20 0 259852 149632 25088 D 1.0 1.8 0:01.05 /usr/local/php74/bin/php index.php

    I managed to reduce the load and the website is now working properly.

    I also updated the PHP configuration of the website to Ultrafast PHP to help improve the website performance as much as possible. This reduced the number of PHP processes and speed up their execution:

    https://eu.siteground.com/kb/ultrafast-php-enable/

    Additionally, as this issue is usually related to website optimization, I performed a speed test that indicates that the website is quite slow:

    https://gtmetrix.com/reports/raupen-kaufen.de/mlcaCqWN/

    If you check the “Waterfall” section you will notice that for the Home page alone, it takes over 200 HTTP requests for the HTML to be fully rendered.

    Combine files where possible, use sprites for images, and ensure that only necessary scripts and styles are loaded. Optimize images, minify CSS and JavaScript files, and use gzip compression to reduce the size of the files being served and check your theme and plugins for inefficient code or excessive AJAX calls.

    I also see that the website has over 130 scheduled crons:

    baseos | raupen-kaufen.de | [email protected]:~/www/raupen-kaufen.de/public_html$ wp cron event list | wc -l
    134

    Having 134 cron events scheduled in WordPress can significantly affect the speed of your website and the demand on server resources, especially if many of these events are scheduled to run frequently or at the same time.

    58 of all crons are identical and executed simultaneously:

    baseos | raupen-kaufen.de | [email protected]:~/www/raupen-kaufen.de/public_html$ wp cron event list | grep ivole_send_reminder | wc -l
    58

    For example:

    ivole_send_reminder 2024-04-07 19:17:04 9 hours 34 minutes Non-repeating
    ivole_send_reminder 2024-04-07 19:17:26 9 hours 34 minutes Non-repeating
    ivole_send_reminder 2024-04-07 19:18:07 9 hours 35 minutes Non-repeating
    ivole_send_reminder 2024-04-07 19:18:37 9 hours 35 minutes Non-repeating
    ivole_send_reminder 2024-04-07 19:20:14 9 hours 37 minutes Non-repeating
    ivole_send_reminder 2024-04-09 18:05:19 2 days 8 hours Non-repeating
    ivole_send_reminder 2024-04-12 09:01:34 4 days 23 hours Non-repeating
    ivole_send_reminder 2024-04-17 08:20:41 1 week 2 days Non-repeating
    ivole_send_reminder 2024-04-18 20:47:56 1 week 4 days Non-repeating
    ivole_send_reminder 2024-04-18 20:48:47 1 week 4 days Non-repeating
    ivole_send_reminder 2024-04-18 20:57:53 1 week 4 days Non-repeating

    This cron is related to the customer-reviews-woocommerce plugin but having 4-5 cron jobs doing the same task is not a good practice. You may want to contact the developers of the plugin so they can advise you further on this matter.

    Each cron event potentially triggers a PHP process when it runs. If multiple events are scheduled to run simultaneously or within a short timeframe, this can create a spike in CPU and memory usage, as the server works to execute all the tasks. If cron events take longer to complete than the interval between them, they can overlap, leading to multiple instances of the same task running at once. This can further increase server load and lead to performance degradation.

    This will help with reducing the speed of the website and the resources that it requires for all HTTP requests to be handled so you can prevent further issues with the performance of the website and the stability of the server.

    “

    Can you help optimize your plugin to increase our page speed?

    Best Regards,

    gifiy

    The page I need help with: [log in to see the link]

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Support pear8398

    (@pear8398)

    Hi,

    Thanks for using CusRev.

    If you don’t want to use the WordPress Cron to schedule the review reminders on your site, you can use the CR Cron to schedule the review reminders on our site cusrev.com. Please follow this solution: CR Cron

    Thread Starter gifiy

    (@gifiy)

    Hello pear,

    Is it necessary, as described, for me to select “Independently verified,” or can I also choose “No verification”?

    In my shop, the issue arises that nobody checks the box during checkout to indicate their consent to receive an email for review.

    What solutions do you suggest?

    Plugin Support pear8398

    (@pear8398)

    Hi,

    Is it necessary, as described, for me to select "Independently verified"?

    Yes, you need to select Independently verified to use the CR Cron. When using this option, we require explicit consent from your customers according to EU laws. So the consent checkbox on the checkout page is necessary.

    Plugin Support bagel1317

    (@bagel1317)

    We haven’t heard from you for more than two weeks. For this reason, I’ll assume that either you are not interested in this question/problem anymore or it has been resolved. If you still require any help, please start a new forum topic.

Viewing 4 replies - 1 through 4 (of 4 total)
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