Wp rocket and memcached?

I have multiple WordPress websites, all of which utilize WP Rocket. Upon installing an additional Memcached plugin, I noticed a slight improvement in website loading speeds. How can I accurately calculate the loading speed differences both before and after the installation of Memcached? Furthermore, what method should I employ to ascertain whether Memcached is genuinely enhancing the loading speed of my websites?

To accurately calculate the loading speed differences before and after installing Memcached for your WordPress websites, follow these steps:

1. Web Hosting Logs:
   Check your web hosting's access logs for server response times. Compare the average server response times before and after Memcached installation.
   • Example: Access logs typically record entries like this:
     
     Code:

     [timestamp] "GET /page-url" 200 1234 "referer" "user-agent"

     You can extract response times (e.g., 1234 ms) from these logs.
   • Steps:
     • Download access logs from your web hosting control panel or server.
     • Parse the logs using a tool like AWK or a log analyzer.
     • Calculate the average response time before Memcached by adding up all response times and dividing by the number of requests.
     • After Memcached installation, repeat the process and compare the average response time.
2. WordPress Performance Plugins:
   Utilize WordPress performance plugins like Query Monitor or New Relic to monitor various performance metrics, including database queries and page load times. These plugins can provide insights into the impact of Memcached.
   • Example: Using Query Monitor, you can see a breakdown of performance like slow database queries, PHP execution times, and page load times.
   • Steps:
     • Install and activate the Query Monitor plugin from the WordPress plugin repository.
     • Access the plugin's dashboard from the WordPress admin panel.
     • Analyze the metrics, focusing on areas like database query times and page load times.
     • Repeat these steps after Memcached implementation to identify any improvements.
3. Page Caching Metrics:
   Analyze WP Rocket's built-in caching metrics. Monitor the cache hit rate and response times both before and after Memcached to see if there's a significant improvement.
   • Example: WP Rocket provides cache statistics within its dashboard, showing cache hit rates and response times.
   • Steps:
     • Access the WP Rocket dashboard in your WordPress admin panel.
     • Look for cache statistics or performance metrics.
     • Monitor the cache hit rate (higher is better) and response times (lower is better).
     • Compare these metrics before and after enabling Memcached.
4. A/B Testing:
   If possible, perform A/B testing with and without Memcached for a more controlled comparison.
   • Example: Create two versions of a webpage – one with Memcached enabled and one without. Use a tool like Google Optimize to split traffic evenly between both versions.
   • Steps:
     • Choose a webpage to test and clone it to create two identical versions.
     • In Google Optimize or another A/B testing tool, set up a test with two variants, one with Memcached and one without.
     • Split incoming traffic evenly between the variants.
     • Monitor page load times, user engagement, and other relevant metrics to determine which version performs better.
5. Monitoring Tools:
   Use server monitoring tools like New Relic, Datadog, or server-specific utilities to track server resource usage before and after Memcached implementation.
   • Example: Using New Relic, you can track CPU utilization, memory usage, and other server resources.
   • Steps:
     • Install and configure New Relic on your server or use the hosting provider's integration.
     • Monitor resource usage metrics before and after Memcached implementation.
     • Look for changes in CPU, memory, and disk usage to ensure Memcached isn't causing resource spikes.

Try these steps, you can collect data and assess the actual impact of Memcached on your WordPress websites' performance, helping you make informed decisions about its effectiveness.

Hope it helps!

To accurately calculate the loading speed differences before and after the installation of Memcached, you can use a website speed testing tool such as Pingdom or GTmetrix. These tools will measure the time it takes for your website to load completely, from when a user clicks on a link to when they see the fully rendered page.

Mihai B. said:

I have multiple WordPress websites, all of which utilize WP Rocket. Upon installing an additional Memcached plugin, I noticed a slight improvement in website loading speeds. How can I accurately calculate the loading speed differences both before and after the installation of Memcached? Furthermore, what method should I employ to ascertain whether Memcached is genuinely enhancing the loading speed of my websites?

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To accurately assess the impact of Memcached on your multiple WordPress websites' loading speeds, you can follow a structured testing process. Start by establishing a baseline measurement of your websites' loading speed using reliable tools like Google PageSpeed Insights or GTmetrix. Note down crucial metrics such as page load time, page size, and the number of requests. After installing the Memcached plugin and ensuring proper configuration, clear any existing caches from other plugins like WP Rocket. This ensures that your initial tests reflect the true impact of Memcached. Then, conduct comparative speed tests before and after enabling Memcached. Run these tests multiple times to obtain an average result and a comprehensive view of the performance changes. Pay particular attention to metrics like page load time, page size, and request counts. However, don't rely solely on a one-time measurement. Monitoring the performance over an extended period is crucial, as Memcached may take some time to optimize and cache data effectively. Observe loading speeds consistently over a week or more to identify any sustained improvements. In addition to traditional speed metrics, consider using Google Analytics to track real user data. Analyze metrics such as bounce rate and average session duration to gauge improvements in user engagement, which is often linked to faster loading times. Lastly, keep an eye on server resource usage, especially if you're on a shared hosting plan. Memcached can be resource-intensive, so ensure that it isn't negatively impacting your server's performance. This data-driven approach will provide you with a comprehensive understanding of how Memcached is influencing your websites' loading speeds and whether it's delivering the desired improvements.