Linux System Monitoring with eBPF

Linux System Monitoring with eBPF

The Linux kernel is an abundant component of modern IT systems. It provides the critical services of hardware abstraction and time-sharing to applications. The classical metrics for monitoring Linux are among the most well known metrics in monitoring: CPU utilization,...
Circonus On The Raspberry Pi

Circonus On The Raspberry Pi

There are a lot of interesting monitoring tasks, that can facilitated with a Raspberry Pi (e.g. here, there). Circonus does not officially support “Raspbian Linux on armv6/v7” as a deployment target, but given the steady interest in this topic, we took the...
Monitoring Queue Sizes

Monitoring Queue Sizes

At Circonus we are collecting a number of metric about block devices. An interesting one is the average length of the request queue, which is exposed by iostat[1]: aqu-sz The average queue length of the requests that were issued to the device. Note: In previous...