PERF_TXN_SYNC 252 include/uapi/linux/perf_event.h PERF_TXN_SYNC = (1 << 2), /* Instruction is related */ PERF_TXN_SYNC 252 tools/include/uapi/linux/perf_event.h PERF_TXN_SYNC = (1 << 2), /* Instruction is related */