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Kubernetes in the wild report 2023

Dynatrace

Java, Go, and Node.js Accordingly, the remaining 27% of clusters are self-managed by the customer on cloud virtual machines. In comparison, on-premises clusters have more and larger nodes: on average, 9 nodes with 32 to 64 GB of memory. Java, Go, and Node.js Java Virtual Machine (JVM)-based languages are predominant.

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The Speed of Time

Brendan Gregg

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Maybe Java is calling it more often for some reason.

Speed 126
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Azure Well-Architected Framework: What it is and how to tame it with AI and automation

Dynatrace

Getting precise root cause analysis when dealing with several layers of virtualization in a containerized world. In comparison, the Dynatrace platform reliably takes that burden off human operators by utilizing its causation-based AI engine, Davis. Analyzing user experience to ensure uniform performance after migration.

Azure 181
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cppfront: Spring update

Sutter's Mill

This update covers Acknowledgments, and highlights of what’s new in the compiler and language since last time, including: simple, mathematically safe, and efficient chained comparisons named break and continue “simple and safe” starts with. In today’s C++, this kind of comparison silently compiles but is a bug.

C++ 97
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Dynatrace SaaS release notes version 1.231

Dynatrace

Sometimes the Python virtual machine crashes. Log queries using comparison operators like `<` and `>` are now correctly rejected as unsupported. (APM-329649). Symptoms : No data is provided for affected metrics on dashboards, alerts, and custom device pages populated by the affected extension metrics. APM-334052). APM-333006).

Lambda 186
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The Speed of Time

Brendan Gregg

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Maybe Java is calling it more often for some reason.

Speed 52
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HammerDB for Managers

HammerDB

An important concept was to simulate database users called Virtual Users in parallel (rather than concurrently) to accurately simulate a real database workload with multiple users running from separate systems. The workload also outputted the data from the Virtual Users by simulating individual terminals. Derived Workloads.