Author Archives: Fred Moyer

Which block I/O scheduler is the best? We asked eBPF

Putting Linux kernel block I/O schedulers under the eBPF microscope eBPF tracing is a broad and deep subject, and can […]

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Faultd Update – Next Generation Alerting

Circonus will soon be releasing our next generation fault detection system, faultd (fault-dee). Faultd is an internal component of our […]

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How Safe is Your Home’s Air? The Internet of Things and Air Quality Monitoring during Wildfires

IoT-driven monitoring of Air Quality during the 2018 California Wildfires Over the past few weeks, the Camp Fire in Northern […]

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Introducing Circonus Stream Tags

Gain greater insight into system behavior in aggregate, across multiple dimensions. A “metric” is a measurement, or value, representing the […]

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The Problem with Percentiles – Aggregation brings Aggravation

Percentiles have become one of the primary service level indicators to represent real systems monitoring performance. When used correctly, they […]

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A Guide To Service Level Objectives, Part 2: It All Adds Up

A simple primer on the complicated statistical analysis behind setting your Service Level Objectives. This is the second in a […]

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A Guide To Service Level Objectives, Part 1: SLOs & You

Four steps to ensure that you hit your targets – and learn from your successes. This is the first in […]

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Air Quality Sensors and IoT Systems Monitoring

2017 was a bad year for fires in California. The Tubbs Fire in Sonoma County in October destroyed whole neighborhoods […]

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Comprehensive Container-Based Service Monitoring with Kubernetes and Istio

Operating containerized infrastructure brings with it a new set of challenges. You need to instrument your containers, evaluate your API […]

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Cassandra Query Observability with Libpcap and Protocol Observer

Opinions vary in recent online discussions regarding systems and software observability. Some state that observability is a replacement for monitoring. […]

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