In a comment on my previous post Apache Sling JVM Performance, Gil Tene made an insightful comment about the potential possibility of performance impact from speed from the underlying environment or other tests. To accommodate for this possibility, I re-ran the tests inside a loop, randomizing order of the JVM execution for each iteration 25 times. […]
Apache Sling JVM Performance Comparison
With the recent proliferation of Java Virtual Machine (JVM) implementations, it’s difficult to know which implementation is the best for your use case. While proprietary vendors generally prefer Oracle Java, there are several open source options with different approaches and capabilities. Given how the implementations vary in some underlying technical specifics, the “correct” JVM implementation […]
Defer offscreen images in Sitecore
When chasing down performance problems on a website, you’ll often times hit an error around deferring offscreen images. This warning occurs when you have imagery “below the fold” (e.g., the area you must scroll to see) loading on your webpages. This problem is especially rampant in CMS systems where you’re never quite sure what the […]
Understanding Performance in Blockchain Systems
Blockchain is an example of distributed ledger systems and as such shares the same performance concerns as any other distributed system. In order to measure the performance of a distributed system with an acceptable degree of accuracy, it’s best to simplify as many of the variables under our control as possible. The size of the […]
Website Performance with the Adobe Experience Cloud
Performance is a critical concern for any web implementation. Users expect high performance, responsive web experiences and will abandon experiences that don’t deliver. Here are some things you need to consider to ensure Adobe solution performance: Scaling of Underlying Hardware Development Best Practices Author Instance Performance Publish Instance Performance Dispatcher Caching Percentage Website Performance […]
Improving Bulk User Creation in AEM 200x
Recently, we had a particularly challenging problem where an AEM website needed to support up to several hundred thousand logins within approximately a 2-hour window. To support this level of load, we couldn’t have user profiles get populated as the users logged in. Instead, the team created a job to populate the users and groups […]
Attack of the AEM Link Checker!!
Nearly every user of Adobe Experience Manager underestimates the AEM Link Checker. Most people think of the AEM Link Checker as that annoying feature that incorrectly strips links in AEM. But, it can do far more. Not only will the AEM Link Checker remove links and incorrectly flag links as broken, but it can also […]
What is the one word that will define success in 2019?
We turned the page on another year and over the next few weeks, organizations and individuals everywhere will be communicating their strategic priorities, goals, and objectives for 2019. This year, I would like to challenge you to identify the one word that describes the success you desire for 2019. Then, ensure that your strategic goals […]
Sitecore Symposium 2018: Measure, if you want to go faster
Sitecore performance is something I am passionate about. So “Measure, if you want to go faster” was a session I definitely didn’t want to miss at Sitecore Symposium. Here are my takeaways: Use Tools Many developer tools have pretty great performance measuring tools built right in. The first tool Jeremy Davis, the session speaker, suggested for measuring performance […]
Sitecore Symposium 2017: Sizing Sitecore Deployments on Azure
This session was lead by Ciaran McAuliffe from Sitecore. He talked about several things that impact your monthly Azure bill, how to make sure you are not over paying for services you don’t need, and getting enough server for a performant website. Here are my notes from the session: Data Center Pricing Not the same […]
Top 10 Most Reputable U.S. Banks
Reputation Institute, a research and advisory firm that focuses on tackling and analyzing the reputation of companies worldwide, released its annual ranking of the most reputable U.S. banks. According to the report (and a basic understanding of human nature!), a company’s reputation has an effect on: Customers buying your products and services Policymakers and regulators […]