DZone

AUGUST 29, 2021

Adding Instrumentation to Jest. Here at Sentry, we like to dogfood our product as much as possible. Sometimes, it results in unusual applications of our product and sometimes these unusual applications pay off in a meaningful way. In this blog post, we’ll examine one such case where we use the Sentry JavaScript SDK to instrument Jest (which runs our frontend test suite) and how we addressed the issues that we found.

Testing 330

Testing Performance Testing Metrics Systems 330

Brendan Gregg

AUGUST 29, 2021

These are rough notes. A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of performance tools to solve this including those that use eBPF and Ftrace. This is a rough post to share this old but good case study of using these tools, and to help justify their further development.

Cache 105

Cache C++ AWS Latency 105

DZone

AUGUST 29, 2021

Static code analysis allows you to identify and eliminate many defects at an early stage. Moreover, it's possible to detect dormant errors that don't show themselves when they appear. They can cause many problems in the future and it requires many hours of debugging to detect them. Let's look at an example of such a dormant error. To show the advantage of regular use of the PVS-Studio static analyzer, we regularly check the Blender project.

Code 235

Code C++ 235

Brendan Gregg

AUGUST 29, 2021

These are rough notes. A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of Linux performance tools to solve this including those that use eBPF and Ftrace. This is a rough post to share this old but good case study of using these tools, and to help justify their further development.

Cache 40

Cache C++ AWS Systems 40