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feat: added configurable num of threads for xnnpack to fix android performance #534

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Merged
mkopcins merged 7 commits into from
Aug 27, 2025
Merged

feat: added configurable num of threads for xnnpack to fix android performance #534

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ab7b503
added threadpool extension, partially fixed perf problems
Aug 20, 2025
6d7d336
Revert "fix: move LLMs back to Obj-C / Kotlin (#497)"
Aug 22, 2025
6c50f12
cleaned up jitpack and build for android, added dynamic threadpool se…
Aug 22, 2025
7f8c7f1
minor cleanup, changed the configurable threads to aarch64 only
Aug 25, 2025
9ee7c97
changed num_of_threads to num_of_performant_cores/2+1
Aug 25, 2025
b43a6e8
removed unnecesary binaries
Aug 27, 2025
925f3ad
review fixes
Aug 27, 2025
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148 changes: 74 additions & 74 deletions apps/llm/ios/Podfile.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -2153,9 +2153,9 @@ PODS:
- ReactCommon/turbomodule/core
- Yoga
- SocketRocket (0.7.1)
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- sqlite3/common (3.50.4)
- sqlite3 (3.50.1):
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Expand Down
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@chmjkb chmjkb Aug 26, 2025

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I'm wondering if we truly need this, the app works without this. And XCode won't let me run the app when this is specified.

</plist>
24 changes: 24 additions & 0 deletions packages/react-native-executorch/android/CMakeLists.txt
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Expand Up @@ -14,4 +14,28 @@ set(COMMON_CPP_DIR "${CMAKE_SOURCE_DIR}/../common")
set(LIBS_DIR "${CMAKE_SOURCE_DIR}/../third-party/android/libs")
set(INCLUDE_DIR "${CMAKE_SOURCE_DIR}/../third-party/include")

# FIXME: Below u can see miserable attempts of trying to link tokenizers-cpp
# directly into react-native-executorch instead of it being linked against ExecuTorch
# and then transitively to our library. Please go back to this when we bump ET runtime to the next version.
# The problem with directly linking tokenizers-cpp using a submodule is that we get unresolved symbols for
# some android logging libraries, which are referenced by sentencepiece.

# set(TOKENIZERS_CPP_DIR "${CMAKE_SOURCE_DIR}/../../../third-party/tokenizers-cpp")
# add_subdirectory("${TOKENIZERS_CPP_DIR}" tokenizers-cpp)

# # Link Android log library to sentencepiece targets
# if(TARGET sentencepiece-static)
# target_link_libraries(sentencepiece-static INTERFACE log)
# endif()
# if(TARGET sentencepiece_train-static)
# target_link_libraries(sentencepiece_train-static INTERFACE log)
# endif()

# # Link log library to sentencepiece executables
# foreach(exe spm_encode spm_decode spm_normalize spm_train spm_export_vocab)
# if(TARGET ${exe})
# target_link_libraries(${exe} log)
# endif()
# endforeach()

add_subdirectory("${ANDROID_CPP_DIR}")
1 change: 1 addition & 0 deletions packages/react-native-executorch/android/build.gradle
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Expand Up @@ -168,5 +168,6 @@ dependencies {
implementation 'com.facebook.fbjni:fbjni:0.6.0'
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation files('libs/classes.jar')
implementation 'org.opencv:opencv:4.10.0'
implementation("com.squareup.okhttp3:okhttp:4.9.2")
}
25 changes: 25 additions & 0 deletions packages/react-native-executorch/android/src/main/cpp/CMakeLists.txt
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Expand Up @@ -33,13 +33,37 @@ set(RN_VERSION_LINK_LIBRARIES
)

# Dependencies:

# ------- Executorch -------

add_library(executorch SHARED IMPORTED)

set_target_properties(executorch PROPERTIES
IMPORTED_LOCATION "${LIBS_DIR}/executorch/${ANDROID_ABI}/libexecutorch.so")


if(ANDROID_ABI STREQUAL "arm64-v8a")
target_compile_definitions(react-native-executorch PRIVATE ARCH_ARM64)

# ------- pthreadpool -------
add_library(pthreadpool SHARED IMPORTED)

set_target_properties(pthreadpool PROPERTIES
IMPORTED_LOCATION "${LIBS_DIR}/pthreadpool/${ANDROID_ABI}/libpthreadpool.so"
INTERFACE_INCLUDE_DIRECTORIES "${LIBS_DIR}/../../include/pthreadpool/")

# ------- cpuinfo -------
add_library(cpuinfo SHARED IMPORTED)

set_target_properties(cpuinfo PROPERTIES
IMPORTED_LOCATION "${LIBS_DIR}/cpuinfo/${ANDROID_ABI}/libcpuinfo.so"
INTERFACE_INCLUDE_DIRECTORIES "${LIBS_DIR}/../../include/cpuinfo/")
set(EXECUTORCH_LIBS
"pthreadpool"
"cpuinfo"
)
endif()

# ------- OpenCV -------

set(OPENCV_LIBS
Expand Down Expand Up @@ -70,4 +94,5 @@ target_link_libraries(
${OPENCV_LIBS}
${OPENCV_THIRD_PARTY_LIBS}
executorch
${EXECUTORCH_LIBS}
)
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