Data encryption at rest is a must-have for any modern Internet company. Many companies, however, don't encrypt their disks, because they fear the potential performance penalty caused by encryption overhead. Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how w
Live-patching security vulnerabilities inside the Linux kernel with eBPF Linux Security Module2022-06-29 Linux Security Modules (LSM) is a hook-based framework for implementing security policies and Mandatory Access Control in the Linux kernel. Until recently users looking to implement a security policy had just two options. Configure an existing LSM module such as AppArmor or SELinux, or write a
Transparent memory offloading: more memory at a fraction of the cost and power Transparent memory offloading (TMO) is Metaâs data center solution for offering more memory at a fraction of the cost and power of existing technologies In production since 2021, TMO saves 20 percent to 32 percent of memory per server across millions of servers in our data center fleet We are witnessing massive growth i
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The Linux Kernel documentation¶ This is the top level of the kernelâs documentation tree. Kernel documentation, like the kernel itself, is very much a work in progress; that is especially true as we work to integrate our many scattered documents into a coherent whole. Please note that improvements to the documentation are welcome; join the linux-doc list at vger.kernel.org if you want to help out.
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