Genp Linux [top] (SIMPLE · 2024)

: If you’re curious, grab the LITMUS^RT kernel (which implements resource partitioning) or look into the PikeOS hypervisor’s Linux guest partitioning.

Here’s a simplified architecture:

In a traditional static partitioned system (common in ARINC 653-based avionics), each process or application gets a fixed block of memory. No sharing. No borrowing. This is safe but wasteful. genp linux

#include <genp.h> int main() // Create a partition with 2MB private + 1MB borrow limit genp_partition_t *part = genp_create(2 * 1024 * 1024, 1 * 1024 * 1024);

genp_free(part, private_buf); genp_destroy(part); : If you’re curious, grab the LITMUS^RT kernel

The kernel ensures that if genp_return() is not called within 100 ms, the global reclaim thread forcefully revokes the memory—even if it means invalidating the process’s mapping (handled via SIGSEGV recovery in safe designs). You might think: “Can’t cgroups limit memory and mlockall() lock pages?”

// Return borrowed memory early genp_return(borrowed); No borrowing

Have you used partitioned memory in a real-time Linux project? Let me know in the comments! About the author : A Linux kernel enthusiast focused on real-time and embedded systems. Find me on GitHub or Twitter.