Xiaoyun Li d35cc1fe6a eal/x86: revert select optimized memcpy at run-time
Revert the patchset run-time Linking support including the following
3 commits:

Fixes: 84cc318424d4 ("eal/x86: select optimized memcpy at run-time")
Fixes: c7fbc80fe60f ("test: select memcpy alignment unit at run-time")
Fixes: 5f180ae32962 ("efd: move AVX2 lookup in its own compilation unit")

The patchset would cause perf drop in vhost/virtio loopback performance
test. Because the run-time dispatch must cost at least a function call
comparing to the compile-time dispatch. And the reference cpu cycles value
is small. And in the test, when using 128-256 bytes packet, it would cause
16%-20% perf drop with mergeble path. When using 256 bytes packet, it would
cause 13% perf drop with vector path.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
2017-11-07 01:16:03 +01:00

52 lines
2.0 KiB
Makefile

# BSD LICENSE
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include $(RTE_SDK)/mk/rte.vars.mk
# library name
LIB = librte_efd.a
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR)
LDLIBS += -lrte_eal -lrte_ring -lrte_hash
EXPORT_MAP := rte_efd_version.map
LIBABIVER := 1
# all source are stored in SRCS-y
SRCS-$(CONFIG_RTE_LIBRTE_EFD) := rte_efd.c
# install this header file
SYMLINK-$(CONFIG_RTE_LIBRTE_EFD)-include := rte_efd.h
include $(RTE_SDK)/mk/rte.lib.mk