paleolimbot commented on code in PR #398:
URL: https://github.com/apache/arrow-nanoarrow/pull/398#discussion_r1525097591


##########
dev/benchmarks/CMakeLists.txt:
##########
@@ -0,0 +1,80 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+message(STATUS "Building using CMake version: ${CMAKE_VERSION}")
+cmake_minimum_required(VERSION 3.14)
+include(FetchContent)
+
+project(nanoarrow_benchmarks)
+
+if(NOT DEFINED CMAKE_C_STANDARD)
+  set(CMAKE_C_STANDARD 99)
+endif()
+
+if(NOT DEFINED CMAKE_CXX_STANDARD)
+  set(CMAKE_CXX_STANDARD 11)
+endif()
+
+option(NANOARROW_BENCHMARK_VERSION "nanoarrow version to benchmark" OFF)
+option(NANOARROW_BENCHMARK_SOURCE_DIR "path to a nanoarrow source checkout to 
benchmark"
+       OFF)
+
+# Avoids a warning about timestamps on downloaded files (prefer new policy
+# if available))
+if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.23")
+  cmake_policy(SET CMP0135 NEW)
+endif()
+
+# Use google/benchmark
+set(BENCHMARK_ENABLE_TESTING OFF)
+fetchcontent_declare(benchmark
+                     URL 
https://github.com/google/benchmark/archive/refs/tags/v1.8.3.zip
+                     URL_HASH 
SHA256=abfc22e33e3594d0edf8eaddaf4d84a2ffc491ad74b6a7edc6e7a608f690e691
+)
+fetchcontent_makeavailable(benchmark)
+
+if(NANOARROW_BENCHMARK_SOURCE_DIR)
+  fetchcontent_declare(nanoarrow SOURCE_DIR 
"${NANOARROW_BENCHMARK_SOURCE_DIR}")
+  fetchcontent_makeavailable(nanoarrow)
+elseif(NANOARROW_BENCHMARK_VERSION)
+  fetchcontent_declare(nanoarrow
+                       URL 
https://github.com/apache/arrow-nanoarrow/archive/refs/tags/apache-arrow-nanoarrow-${NANOARROW_BENCHMARK_VERSION}.zip
+  )
+  fetchcontent_makeavailable(nanoarrow)
+endif()
+
+# Check that at least one option was specified. This also lets the top-level
+# CMakeLists.txt use add_subdirectory() for slightly easier benchmark 
development.
+if(NOT TARGET nanoarrow)
+  message(FATAL_ERROR "nanoarrow target not found (missing 
-DNANOARROW_BENCHMARK_XXX option?)"
+  )
+endif()
+
+# Add + link tests
+add_executable(schema_benchmark c/schema_benchmark.cc)
+add_executable(array_benchmark c/array_benchmark.cc)
+
+target_link_libraries(schema_benchmark PRIVATE nanoarrow 
benchmark::benchmark_main)
+target_link_libraries(array_benchmark PRIVATE nanoarrow 
benchmark::benchmark_main)
+
+# This lets all benchmarks run via ctest -VV when this is the top-level project
+include(CTest)
+enable_testing()

Review Comment:
   The tests don't show up in VSCode unless I put it there 🤷 



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