doc: update bbdev guide

[dpdk.git] / doc / guides / prog_guide / writing_efficient_code.rst

diff --git a/doc/guides/prog_guide/writing_efficient_code.rst b/doc/guides/prog_guide/writing_efficient_code.rst
index 2639ef7..7baeaae 100644 (file)
--- a/doc/guides/prog_guide/writing_efficient_code.rst
+++ b/doc/guides/prog_guide/writing_efficient_code.rst
@@ -258,8 +258,7 @@ For instance:
 Setting the Target CPU Type
 ---------------------------
 
-The DPDK supports CPU microarchitecture-specific optimizations by means of CONFIG_RTE_MACHINE option
-in the DPDK configuration file.
+The DPDK supports CPU microarchitecture-specific optimizations by means of RTE_MACHINE option.
 The degree of optimization depends on the compiler's ability to optimize for a specific microarchitecture,
 therefore it is preferable to use the latest compiler versions whenever possible.
 
@@ -273,5 +272,3 @@ main() function and checks if the current machine is suitable for running the bi
 Along with compiler optimizations,
 a set of preprocessor defines are automatically added to the build process (regardless of the compiler version).
 These defines correspond to the instruction sets that the target CPU should be able to support.
-For example, a binary compiled for any SSE4.2-capable processor will have RTE_MACHINE_CPUFLAG_SSE4_2 defined,
-thus enabling compile-time code path selection for different platforms.