https://www.kerno.io/blog/programming-the-kernel-with-ebpf

"""In this issue, we’ll explore eBPF (Extended Berkeley Packet Filter), […] 

TLDR

    eBPF is a mechanism that makes the [#Linux] #kernel dynamically programmable without modifying the source code.
    eBPF is safe, fast, incredibly flexible, and extensible.
    eBPF has been running in production for over half a decade at internet scale on millions of servers.
    eBPF use cases range from observability, networking, security, tracing, and profiling.""" #LinuxKernel