Operations | Monitoring | ITSM | DevOps | Cloud

Application Performance Monitoring (APM) tools are essential in software development landscape. As applications become more complex, ensuring they perform optimally has never been more critical. APM tools allow developers to monitor, diagnose, and optimize applications, ensuring a seamless user experience. In this article, we'll explore the top 10 APM tools available today, highlighting their features, pros, and cons to help you make an informed decision.

Whether an enterprise operates in technology, healthcare, financial services, or another business vertical, cybersecurity must remain top of mind. In addition to the numerous international cybersecurity regulations, like the NIST Cybersecurity Framework, GDPR, and other mandates, enterprises must also prioritize cybersecurity to mitigate downtime, protect sensitive data, and uphold customer trust and brand reputation.

eBPF is a powerful technology used by many observability solutions, including Coroot. While web-based observability tools like Coroot are invaluable, there’s a specific class of eBPF tools that often go overlooked (besides Brendan Gregg of course): eBPF Linux Command Line Tools. These tools are essential for diving deep into complex performance issues. But first – why would you need those at all if you have convenient observability focused web applications?

In this blog post we will look at runqlat and runqslower commands. They are available in both BCC and bpftrace tool collections. One of the core functions of Linux operating system is to schedule processes across available CPUs. When service gets a request, Linux typically will need to schedule the process, processing that request to run on one of CPUs. This might be very quick process if idle CPU is available or it can take significant time, if all CPUs are currently busy running different processes.

In this blog post we will look at gethostlatency command. It is available in both BCC and bpftrace tool collections. Most applications and services use hostnames, rather than IP addresses to communicate with other services. This means before connection to the service can be established, another request needs to be made – to DNS (Domain Name System). As such its performance and availability impacts performance of virtually all services in your environment, yet it is often ignored.