eal/arm64: optimize memcpy

[dpdk.git] / config / common_armv8a_linuxapp

diff --git a/config/common_armv8a_linuxapp b/config/common_armv8a_linuxapp
index 781c854..790e716 100644 (file)
--- a/config/common_armv8a_linuxapp
+++ b/config/common_armv8a_linuxapp
@@ -17,6 +17,18 @@ CONFIG_RTE_FORCE_INTRINSICS=y
 # to address minimum DMA alignment across all arm64 implementations.
 CONFIG_RTE_CACHE_LINE_SIZE=128
 
+# Accelarate rte_memcpy. Be sure to run unit test (memcpy_perf_autotest)
+# to determine the best threshold in code. Refer to notes in source file
+# (lib/librte_eal/common/include/arch/arm/rte_memcpy_64.h) for more info.
+CONFIG_RTE_ARCH_ARM64_MEMCPY=n
+#CONFIG_RTE_ARM64_MEMCPY_ALIGNED_THRESHOLD=2048
+#CONFIG_RTE_ARM64_MEMCPY_UNALIGNED_THRESHOLD=512
+# Leave below RTE_ARM64_MEMCPY_xxx options commented out, unless there're
+# strong reasons.
+#CONFIG_RTE_ARM64_MEMCPY_SKIP_GCC_VER_CHECK=n
+#CONFIG_RTE_ARM64_MEMCPY_ALIGN_MASK=0xF
+#CONFIG_RTE_ARM64_MEMCPY_STRICT_ALIGN=n
+
 CONFIG_RTE_LIBRTE_FM10K_PMD=n
 CONFIG_RTE_LIBRTE_SFC_EFX_PMD=n
 CONFIG_RTE_LIBRTE_AVP_PMD=n