Traditionally processes are identified globally via process identifiers (PIDs). Due to how pid allocation works the kernel is free to recycle PIDs once a process has been reaped. As such, PIDs do not allow another process to maintain a private, stable reference on a...
RCU has seen lots of changes in the last 2 years. Of note is the RCU flavor consolidation and tree RCU’s lock contention improvements. There have been also improvements with static checking, fixes to scheduler deadlocks and improvements to RCU-based linked lists....
Operating system distributors often face challenges that are somewhat different from that of upstream kernel developers. For instance, some kernel updates often need to stay at least binary compatible with modules that might be “out of tree” for some time. In that...
Suricata is a network threat detection engine using network packets capture to reconstruct the traffic till the application layer and find threats on the network using rules that define behavior to detect. This task is really CPU intensive and discarding non...
This talk will provide several examples of how Facebook engineers use BPF to scale the networking, prevent denial of service, secure containers, analyze performance. It’s suitable for BPF newbies and...
