ebpf_exporter

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#include <vmlinux.h>
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#include <bpf/bpf_tracing.h>
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#include "maps.bpf.h"
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#define MAX_CPUS 512
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struct {
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    __uint(type, BPF_MAP_TYPE_HASH);
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    __uint(max_entries, MAX_CPUS);
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    __type(key, u32);
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    __type(value, u64);
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} llc_references_total SEC(".maps");
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struct {
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    __uint(type, BPF_MAP_TYPE_HASH);
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    __uint(max_entries, MAX_CPUS);
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    __type(key, u32);
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    __type(value, u64);
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} llc_misses_total SEC(".maps");
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static int trace_event(void *map, u32 cpu, u64 sample_period)
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{
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    increment_map(map, &cpu, sample_period);
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    return 0;
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}
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SEC("perf_event/type=0,config=3,frequency=1")
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int on_cache_miss(struct bpf_perf_event_data *ctx)
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{
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    return trace_event(&llc_misses_total, bpf_get_smp_processor_id(), ctx->sample_period);
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}
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SEC("perf_event/type=0,config=2,frequency=1")
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int on_cache_reference(struct bpf_perf_event_data *ctx)
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{
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    return trace_event(&llc_references_total, bpf_get_smp_processor_id(), ctx->sample_period);
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}
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char LICENSE[] SEC("license") = "GPL";
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