sparse dsp optimization

Signed-off-by: Alexandr Guzhva <alexanderguzhva@gmail.com>

Author: lyang24

Makefile

@@ -64,12 +64,13 @@ endif
 # which requires std::partial_ordering from <compare> (a C++20 feature).
 CONAN_SETTINGS := -s compiler.libcxx=$(LIBCXX) -s build_type=$(BUILD_TYPE) -s compiler.cppstd=20 -s:b compiler.cppstd=20
 
-# DiskANN and liburing require libaio (Linux-only).
+# DiskANN is enabled for Linux builds.  CONAN_BASE_FLAGS already contains
+# --build=missing, which builds liburing when it is present in the graph and
+# lacks a binary package.  A separate --build=liburing pattern is unsafe with
+# Conan 1 because it is a hard error when a profile/option removes liburing
+# from the resolved graph.
 ifneq ($(UNAME_S),Darwin)
-    CONAN_SETTINGS += -o \&:with_diskann=True
-    ifndef WITH_GPU
-        CONAN_INSTALL_FLAGS += --build=liburing
-    endif
+    CONAN_FLAGS += -o with_diskann=True
 endif
 
 # GPU builds use cuVS.

benchmark/CMakeLists.txt

@@ -70,6 +70,14 @@ endif()
 benchmark_test(gen_hdf5_file hdf5/gen_hdf5_file.cpp)
 benchmark_test(gen_fbin_file hdf5/gen_fbin_file.cpp)
 
+# Sparse DSP benchmark (standalone, no HDF5/GTest required)
+add_executable(benchmark_sparse_dsp benchmark_sparse_dsp.cpp)
+target_link_libraries(benchmark_sparse_dsp knowhere)
+if(NOT APPLE)
+    target_link_libraries(benchmark_sparse_dsp atomic)
+endif()
+install(TARGETS benchmark_sparse_dsp DESTINATION unittest)
+
 # Sparse SIMD benchmark (x86_64 only, standalone, no HDF5 required)
 # Only build on x86_64/AMD64, skip on ARM/aarch64/arm64
 if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86_64|AMD64|amd64|X86_64)$")