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Everything as Code

Dynatrace

At Dynatrace we believe that monitoring and performance should both be automated processes that can be treated as code without the need for any manual intervention. And, applying the “Everything as Code” principles can greatly help achieve that. Treating these different processes as code will ensure that best practices are followed.

Code 111
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Kubernetes And Kernel Panics

The Netflix TechBlog

Without a real return code, how can they know if it is safe to retry or not? These orphaned pods represent real pain for our users, even if they are a small percentage of the total pods in the system. Do you also enjoy really getting to the bottom of why things fail in your systems or think kernel panics are cool?

Hardware 228
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SQL Server 2017 Improved Resource Usage On Smaller Machines

SQL Server According to Bob

The changes made in SQL Server 2017 CU4 improve resource usage on smaller machines, such as a VM or Container used for testing and development. Studying the code I found that the ‘default max worker threads’ calculation did not take into account the RAM on the system. What Is A Small System?

Servers 40
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BPF Performance Tools: Linux System and Application Observability (book)

Brendan Gregg

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. A time where you can pose arbitrary questions of the system, and it can answer them.

Systems 111
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Life of a Netflix Partner Engineer?—?The case of extra 40 ms

The Netflix TechBlog

The mystery begins Towards the end of 2017, I was on a conference call to discuss an issue with the Netflix application on a new set top box. Next I started reading the Ninja source code. I wanted to find the precise code that delivers the audio data. aka “Lollipop”. I wanted to answer this question: where is the extra time?

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Solaris to Linux Migration 2017

Brendan Gregg

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

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Evolving Container Security With Linux User Namespaces

The Netflix TechBlog

By Fabio Kung , Sargun Dhillon , Andrew Spyker , Kyle , Rob Gulewich, Nabil Schear , Andrew Leung , Daniel Muino, and Manas Alekar As previously discussed on the Netflix Tech Blog, Titus is the Netflix container orchestration system. It runs a wide variety of workloads from various parts of the company?—?everything

Media 286