chore: update docs/linux.md [20260514-2029]

docs/linux.md

@@ -325,6 +325,7 @@
 - [blog.flipkart.tech: The Art of System Debugging — Decoding CPU Utilization](https://blog.flipkart.tech/the-art-of-system-debugging-decoding-cpu-utilization-da75f09ef1ff)
 
 ## Linux processes
+  - [Controlling Process Resources with Linux Control Groups (cgroups)](https://labs.iximiuz.com/tutorials/controlling-process-resources-with-cgroups) - *(Related to kubernetes topic)*
 
 - [percona.com: How Much Memory Does the Process Really Take on Linux? 🌟](https://www.percona.com/blog/2020/09/11/how-much-memory-does-the-process-really-take-on-linux/)
 
@@ -337,6 +338,7 @@
 - [github.com/cyberus-technology/virtualbox-kvm: KVM Backend for VirtualBox 🌟](https://github.com/cyberus-technology/virtualbox-kvm) This repository contains a KVM backend for the open source virtualization tool VirtualBox. With this backend, Linux KVM is used as the underlying hypervisor.
 
 ## Linux and Kubernetes
+  - [CPU Limits in Kubernetes: Deep Dive into Pod Throttling and Kernel Interactions](https://www.linkedin.com/pulse/cpu-limits-kubernetes-why-your-pod-idle-still-deep-dive-lazarev-k3m7f?utm_source=share&utm_medium=member_android&utm_campaign=share_via) - *(Related to kubernetes-troubleshooting topic)*
 
 - [tldp.org: The Linux System Administrator's Guide 🌟](https://tldp.org/LDP/sag/html/index.html)
 - [How Linux PID namespaces work with containers 🌟](https://www.redhat.com/sysadmin/linux-pid-namespaces)
@@ -452,4 +454,4 @@
 
 <blockquote class="twitter-tweet"><p lang="en" dir="ltr">How to make rsync faster? <a href="https://t.co/bIdizhoNoS">pic.twitter.com/bIdizhoNoS</a></p>&mdash; Rakesh Jain (@devops_tech) <a href="https://twitter.com/devops_tech/status/1633732722329001985?ref_src=twsrc%5Etfw">March 9, 2023</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
 </center>
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