elapsed_tb 133 tools/testing/selftests/powerpc/benchmarks/null_syscall.c unsigned long long elapsed_ns, elapsed_tb; elapsed_tb 147 tools/testing/selftests/powerpc/benchmarks/null_syscall.c elapsed_tb = tb_now - tb_start; elapsed_tb 150 tools/testing/selftests/powerpc/benchmarks/null_syscall.c (float)elapsed_tb * timebase_multiplier / NR_LOOPS);