PERF_MEM_LVLNUM_L1 1111 include/uapi/linux/perf_event.h #define PERF_MEM_LVLNUM_L1	0x01 /* L1 */
PERF_MEM_LVLNUM_L1 1111 tools/include/uapi/linux/perf_event.h #define PERF_MEM_LVLNUM_L1	0x01 /* L1 */