Jesper Dangaard Brouer f9419f7bd7 bpf: cpumap add tracepoints ... This adds two tracepoint to the cpumap. One for the enqueue side trace_xdp_cpumap_enqueue() and one for the kthread dequeue side trace_xdp_cpumap_kthread(). To mitigate the tracepoint overhead, these are invoked during the enqueue/dequeue bulking phases, thus amortizing the cost. The obvious use-cases are for debugging and monitoring. The non-intuitive use-case is using these as a feedback loop to know the system load. One can imagine auto-scaling by reducing, adding or activating more worker CPUs on demand. V4: tracepoint remove time_limit info, instead add sched info V8: intro struct bpf_cpu_map_entry members cpu+map_id in this patch Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-10-18 12:12:18 +01:00
..
events	bpf: cpumap add tracepoints	2017-10-18 12:12:18 +01:00
define_trace.h
perf.h	tracing: Use outer () on __get_str() definition	2016-07-15 15:50:58 -04:00
syscall.h
trace_events.h	tracing: define TRACE_DEFINE_SIZEOF() macro to map sizeof's to their values	2017-06-13 17:10:57 -04:00