1PERF_EVENT_IOC_ENABLE _IO ('$', 0) 2PERF_EVENT_IOC_DISABLE _IO ('$', 1) 3PERF_EVENT_IOC_REFRESH _IO ('$', 2) 4PERF_EVENT_IOC_RESET _IO ('$', 3) 5PERF_EVENT_IOC_PERIOD _IOW('$', 4, uint64_t) 6PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5) 7PERF_EVENT_IOC_SET_FILTER _IOW('$', 6, char *) 8PERF_EVENT_IOC_ID _IOR('$', 7, uint64_t *) 9PERF_EVENT_IOC_SET_BPF _IOW('$', 8, uint32_t) 10PERF_EVENT_IOC_PAUSE_OUTPUT _IOW('$', 9, uint32_t) 11PERF_EVENT_IOC_QUERY_BPF _IOWR('$', 10, struct perf_event_query_bpf *) 12PERF_EVENT_IOC_MODIFY_ATTRIBUTES _IOW('$', 11, struct perf_event_attr *) 13