Andrea Righi 5da4602ad7 scx_rustland_core: use a BPF_MAP_TYPE_USER_RINGBUF to dispatch tasks ... Replace the BPF_MAP_TYPE_QUEUE with a BPF_MAP_TYPE_USER_RINGBUF to store the tasks dispatched from the user-space scheduler to the BPF component. This eliminates the need of the bpf() syscalls, significantly reducing the overhead of the user-space->kernel communication and delivering a notable performance boost in the overall system throughput. Based on experimental results, this change allows to reduces the scheduling overhead by approximately 30-35% when the system is overcommitted. This improvement has the potential to make user-space schedulers based on scx_rustland_core viable options for real production systems. Link: https://github.com/libbpf/libbpf-rs/pull/776 Signed-off-by: Andrea Righi <andrea.righi@canonical.com>		2024-05-08 22:16:53 +02:00
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intf.h	scx_rustland_core: use a separate field to store dispatch flags	2024-04-23 16:10:56 +02:00
main.bpf.c	scx_rustland_core: use a BPF_MAP_TYPE_USER_RINGBUF to dispatch tasks	2024-05-08 22:16:53 +02:00