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Measure What You Impact, Not What You Influence

CSS Wizardry

A thing I see developers do time and time again is make performance-facing changes to their sites and apps, but mistakes in how they measure them often lead to incorrect conclusions about the effectiveness of that work. Problems When Measuring Performance. For example, continuing our task to reduce CSS size: performance.

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How to use Server Timing to get backend transparency from your CDN

Speed Curve

That performance golden rule still holds true today. Looking at the industry benchmarks for US retailers , four well-known sites have backend times that are approaching – or well beyond – that threshold. Charlie Vazac introduced server timing in a Performance Calendar post circa 2018.

Servers 57
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20X Faster Backup Preparation With Percona XtraBackup 8.0.33-28!

Percona

When a new node joins the cluster, SST is performed to receive the data from DONOR to the JOINER. Percona XtraBackup performs crash recovery on the files to make a consistent, usable database again. This search tuple (key) is used to find the record to perform the undo operation. JOINER must prepare the backup before using it.

Cache 89
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Impact of Querying Table Information From information_schema

Percona

A lot of useful information can be retrieved from this schema, for example, table metadata and foreign key relations, but trying to query I_S can induce performance degradation if your server is under heavy load, as shown in the following example test. performance degradation. That is (46320 – 38472) * 100 / 46320 = 16.9%

Cache 106
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Why is Wordpress Slow?

KeyCDN

Unoptimized content could also be one of the reasons why your WordPress website is not performing as per your expectations. But if you have not optimized your WordPress properly, your WordPress will definitely be slower than your expectations. However, unoptimized WordPress plugins can drastically drag down your website's performance.

Cache 52
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Average Page Load Times for 2020 – Are you faster?

MachMetrics

With another year winding down, it’s time for us to take stock of how our site performance compares to the average page load times for 2020. As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is. seconds on mobile.

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Synthetic Monitoring vs. RUM

Rigor

Reading time 4 min It’s important for both technical and business teams to understand the different web performance monitoring options that are available as well as their various use cases and the benefits of each. Understanding Web Performance Monitoring Methodologies. AB Test the Performance Impact of Third Parties.