Enable Linux AppImage builds for Profile Guided Optimization (PGO). (#1173)

* Enable Linux AppImage builds for Profile Guided Optimization (PGO). * Fix typo. * Fix another typo. * oops, need to install pulseaudio. * Need to set PYTHONPATH. * Make sure dbus is installed. * Don't strip symbols (debugging). * Some fixes that should hopefully reverse performance regression. * Enable temporal-profile. * Use lld for linking instead. * Add PR #1173 to changelog. * Enable PGO for macOS DMG builds. * Don't use LLVM Clang. * Revert macOS PGO changes. * Use -O3 for AppImages. * Have CMake add PGO flags. * Enable PGO again on macOS. * Fix typos. * Force Apple ld. * Make absolutely sure we're using Apple ar and ranlib. * Use Release for DMG build. * Enable verbose build output for debugging. * Force /usr to be first in PATH. * Force LLD linker. * Oops, need CMAKE_LINKER_TYPE instead. * Use same Clang as in lint. * Override ar path. * AppleClang on macOS 26 supports PGO. * Need to install Homebrew LLVM for profdata. * Try deferring LLVM 19 install until time to run profgen. * LLVM without LTO. * Adapt use of libtool from LLVM. * Try forcing libtool usage in Codec2 too. * Disable verbose build. * Explicitly pass CMAKE_AR and CMAKE_RANLIB into dependent projects. * Fix typo. * Use LLVM 20 instead of 21. * Ensure all macOS dependencies use -O3 and 11.0 min. * Cache Python generation during macOS build. * Fix typos. * Revert previous changes. * Make sure FreeDV Reporter window is visible during PGO data collection. * Fix waterfall rendering issue with multiple plots displayed at once. * Disable PGO on macOS except for official releases. * Revert logging previously committed. * Linux: test -O3 only, no PGO. * UdpHandler: fix crash when unable to resolve DNS. * Revert "Linux: test -O3 only, no PGO." This reverts commit 26da306b48. * Revert "Disable PGO on macOS except for official releases." This reverts commit a7cc6852db. * Allow DMG generation to run during lint. * Ensure debug symbols are enabled even for Release builds. * Linux: allow AppImages to build during lint. * Add documentation for building with PGO. * macOS: Try performing non-universal instrumented build to improve CI performance. * Enable LTO for macOS DMG build. * Revert "Enable LTO for macOS DMG build." This reverts commit 6e54a1c39d. * Another attempt at enabling LTO for macOS. * Revert "Another attempt at enabling LTO for macOS." This reverts commit 60080db6b2. * Upgrade MinGW LLVM to 20251216. * Experiment: collect profiling data for legacy modes as well. * Disable PGO on macOS due to long build times. * No difference in CPU usage when profiling legacy modes, so just profile RADE. * Forgot to change utmode back to RADEV1.
2026-01-28 13:00:49 -08:00 · 2026-01-28 13:00:49 -08:00 · 89a406b717
parent 7fd61178df
commit 89a406b717
19 changed files with 524 additions and 41 deletions
--- a/.github/workflows/cmake-linux.yml
+++ b/.github/workflows/cmake-linux.yml
@ -55,7 +55,7 @@ jobs:
        run-clang-tidy-22 -p .

  build-appimage:
-    needs: lint
+    #needs: lint
    env:
      FREEDV_LINUX_CODE_SIGNING_KEY_ID: ${{ secrets.FREEDV_LINUX_CODE_SIGNING_KEY_ID }}

@ -78,7 +78,15 @@ jobs:
        wget https://apt.llvm.org/llvm.sh
        chmod +x llvm.sh
        sudo ./llvm.sh 22 all
-
+        
+    - name: Install rtkit for RT threading
+      shell: bash
+      run: |
+           sudo apt-get update
+           sudo apt-get install dbus-x11 rtkit libdbus-1-dev polkitd
+           sudo sed -i 's/no/yes/g' /usr/share/polkit-1/actions/org.freedesktop.RealtimeKit1.policy 
+           sudo systemctl restart polkit
+           
    - name: Install required packages
      shell: bash
      run: |
@ -86,7 +94,11 @@ jobs:
           sudo apt install software-properties-common -y
           sudo add-apt-repository ppa:deadsnakes/ppa -y
           sudo apt update
-           sudo apt-get install libpulse-dev sox git libasound2-dev libao-dev libgsm1-dev xvfb pipewire pulseaudio-utils pipewire-pulse wireplumber metacity at-spi2-core libdbus-1-dev libgtk-3-dev python3.14 python3.14-dev python3.14-venv libebur128-dev
+           sudo apt-get install libpulse-dev sox git libasound2-dev libao-dev libgsm1-dev xvfb pulseaudio pulseaudio-utils metacity at-spi2-core libdbus-1-dev libgtk-3-dev python3.14 python3.14-dev python3.14-venv libebur128-dev
+           mkdir -p ~/.config/pulse
+           echo "default-sample-rate = 48000" >~/.config/pulse/daemon.conf
+           sudo sed 's/load-module module-suspend-on-idle/#load-module module-suspend-on-idle/' /etc/pulse/default.pa -i
+           systemctl --user --now enable pulseaudio.service pulseaudio.socket

    - name: Install Python required modules
      shell: bash
@ -101,13 +113,43 @@ jobs:
      if: ${{ matrix.target == 'freedv-flex' }}
      uses: docker/setup-buildx-action@v3

-    - name: Build freedv-gui using PulseAudio
+    - name: Build instrumented freedv-gui 
      shell: bash
      working-directory: ${{github.workspace}}
      if: ${{ matrix.target == 'all' }}
      run: |
          . ./rade-venv/bin/activate
-          CC=clang-22 CXX=clang++-22 ENABLE_LTO=1 STATIC_LIBGCC=1 ./build_linux.sh 
+          BUILD_TYPE=Release CC=clang-22 CXX=clang++-22 PGO_INSTRUMENT=1 ENABLE_LTO=1 STATIC_LIBGCC=1 ./build_linux.sh 
+
+    - name: Generate optimization profile
+      shell: bash
+      working-directory: ${{github.workspace}}
+      if: ${{ matrix.target == 'all' }}
+      run: |
+          sudo systemctl enable rtkit-daemon
+          sudo systemctl start rtkit-daemon
+          Xvfb :99 -screen 0 1920x1080x16 &
+          sleep 5
+          export DISPLAY=:99.0
+          export XDG_RUNTIME_DIR=/run/user/$(id -u)
+          mkdir -p $XDG_RUNTIME_DIR
+          chmod 700 $XDG_RUNTIME_DIR
+          eval "$(dbus-launch --sh-syntax --exit-with-x11)"
+          metacity --sm-disable --replace &
+          sleep 5
+          . ./rade-venv/bin/activate
+          cd build_linux
+          LLVM_PROFILE_FILE="code-%p.profraw" PYTHONPATH=$(pwd)/rade_src ../test/generate_pgo_profiles.sh 2>&1
+          llvm-profdata-22 merge -output ${{ github.workspace }}/code.profdata code-*.profraw
+
+    - name: Build PGO optimized freedv-gui 
+      shell: bash
+      working-directory: ${{github.workspace}}
+      if: ${{ matrix.target == 'all' }}
+      run: |
+          . ./rade-venv/bin/activate
+          rm -rf build_linux
+          BUILD_TYPE=Release CC=clang-22 CXX=clang++-22 PGO_USE_PROFILE=${{github.workspace}}/code.profdata ENABLE_LTO=1 STATIC_LIBGCC=1 ./build_linux.sh 

    - name: Build target
      shell: bash
@ -408,7 +450,7 @@ jobs:
           sudo apt install software-properties-common -y
           sudo add-apt-repository ppa:deadsnakes/ppa -y
           sudo apt update
-           sudo apt-get install libpulse-dev libspeexdsp-dev libsamplerate0-dev sox git portaudio19-dev libhamlib-dev libasound2-dev libao-dev libgsm1-dev libsndfile-dev xvfb pipewire pulseaudio-utils pipewire-pulse wireplumber metacity at-spi2-core libebur128-dev python3.14 python3.14-dev python3.14-venv
+           sudo apt-get install libpulse-dev libspeexdsp-dev libsamplerate0-dev sox git portaudio19-dev libhamlib-dev libasound2-dev libao-dev libgsm1-dev libsndfile-dev xvfb pulseaudio-utils metacity at-spi2-core libebur128-dev python3.14 python3.14-dev python3.14-venv

    - name: Install version-specific packages
      if: ${{ matrix.os == 'ubuntu-22.04' || matrix.os == 'ubuntu-22.04-arm' }}
--- a/.github/workflows/cmake-macos.yml
+++ b/.github/workflows/cmake-macos.yml
@ -126,7 +126,7 @@ jobs:
    runs-on: macos-latest
    env:
      MACOS_NOTARYTOOL_PROFILE_NAME: "FreeDVCodeSigning"
-    needs: ['lint']
+    #needs: ['lint']

    steps:
    - uses: actions/checkout@v4
@ -138,7 +138,7 @@ jobs:

    - name: Install needed packages
      run: |
-        brew install automake libtool numpy sox 
+        brew install automake libtool numpy sox llvm@20 lld@20  # note: LLVM 21 introduces incompatibilities - see https://github.com/Homebrew/homebrew-core/issues/235411
        brew uninstall git # workaround, forces use of Apple git

    - name: Initialize code signing infrastructure
@ -161,17 +161,57 @@ jobs:
        security find-identity -v macos-build.keychain
        xcrun notarytool store-credentials --apple-id "${{ env.MACOS_CODE_SIGNING_USERNAME }}" --password "${{ env.MACOS_CODE_SIGNING_PASSWORD }}" --team-id "${{ vars.FREEDV_MACOS_CODE_SIGNING_TEAM_ID }}" ${{ env.MACOS_NOTARYTOOL_PROFILE_NAME }}

-    - name: Build universal freedv-gui (unsigned)
+    - name: Install VB-Cable
+      shell: bash
+      working-directory: ${{github.workspace}}
+      run: |
+          brew install vb-cable
+
+    - name: Install other virtual audio devices
+      shell: bash
+      working-directory: ${{github.workspace}}
+      run: ./build_macos_sound_drivers.sh
+
+    - name: Workaround macOS permission issues
+      run: |
+          sqlite3 $HOME/Library/Application\ Support/com.apple.TCC/TCC.db "BEGIN TRANSACTION; INSERT OR IGNORE INTO access VALUES ('kTCCServiceMicrophone','/usr/local/opt/runner/provisioner/provisioner',1,2,4,1,NULL,NULL,0,'UNUSED',NULL,0,1687786159,NULL,NULL,'UNUSED',1687786159); INSERT OR IGNORE INTO access VALUES ('kTCCServiceMicrophone','/opt/off/opt/runner/provisioner/provisioner',1,2,4,1,NULL,NULL,0,'UNUSED',NULL,0,1687786159,NULL,NULL,'UNUSED',1687786159); COMMIT;"
+
+    - name: Make sure resource hogs aren't running
+      shell: bash
+      run: |
+          sudo launchctl unload /System/Library/LaunchDaemons/com.apple.cloudd.plist
+          sudo mdutil -a -i off
+          sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist
+
+    #- name: Build instrumented freedv-gui
+    #  shell: bash
+    #  working-directory: ${{github.workspace}}
+    #  run: |
+    #      BUILD_TYPE=Release UT_ENABLE=0 BUILD_DEPS=1 PGO_INSTRUMENT=1 CC=$(brew --prefix llvm@20)/bin/clang CXX=$(brew --prefix llvm@20)/bin/clang++ OBJCXX=$(brew --prefix llvm@20)/bin/clang ./build_osx.sh
+
+    #- name: Generate optimization profile
+    #  shell: bash
+    #  working-directory: ${{github.workspace}}
+    #  run: |
+    #      cd build_osx
+    #      LLVM_PROFILE_FILE="code-%p.profraw" FREEDV_COMPUTER_TO_RADIO_DEVICE="VB-Cable" FREEDV_RADIO_TO_COMPUTER_DEVICE="VB-Cable" FREEDV_COMPUTER_TO_SPEAKER_DEVICE="BlackHole1 2ch" FREEDV_MICROPHONE_TO_COMPUTER_DEVICE="BlackHole2 2ch" ../test/generate_pgo_profiles.sh 2>&1
+    #      $(brew --prefix llvm@20)/bin/llvm-profdata merge -output ${{ github.workspace }}/code.profdata code-*.profraw
+
+    - name: Build freedv-gui (unsigned)
      if: ${{ vars.FREEDV_MACOS_CODE_SIGNING_TEAM_ID == '' }}
      shell: bash
      working-directory: ${{github.workspace}}
-      run: UT_ENABLE=0 UNIV_BUILD=1 BUILD_DEPS=1 ENABLE_LTO=1 ./build_osx.sh 
+      run: |
+          rm -rf build_osx
+          BUILD_TYPE=Release UT_ENABLE=0 UNIV_BUILD=1 BUILD_DEPS=1 ./build_osx.sh 

-    - name: Build universal freedv-gui (signed)
+    - name: Build freedv-gui (signed)
      if: ${{ vars.FREEDV_MACOS_CODE_SIGNING_TEAM_ID != '' }}
      shell: bash
      working-directory: ${{github.workspace}}
-      run: UT_ENABLE=0 UNIV_BUILD=1 BUILD_DEPS=1 ENABLE_LTO=1 CODESIGN_IDENTITY=${{ vars.FREEDV_MACOS_CODE_SIGNING_TEAM_ID }} CODESIGN_KEYCHAIN_PROFILE=${{ env.MACOS_NOTARYTOOL_PROFILE_NAME }} ./build_osx.sh
+      run: |
+          rm -rf build_osx
+          BUILD_TYPE=Release UT_ENABLE=0 UNIV_BUILD=1 BUILD_DEPS=1 CODESIGN_IDENTITY=${{ vars.FREEDV_MACOS_CODE_SIGNING_TEAM_ID }} CODESIGN_KEYCHAIN_PROFILE=${{ env.MACOS_NOTARYTOOL_PROFILE_NAME }} ./build_osx.sh

    - name: Package executable
      working-directory: ${{github.workspace}}/build_osx
--- a/.github/workflows/cmake-windows.yml
+++ b/.github/workflows/cmake-windows.yml
@ -61,15 +61,15 @@ jobs:
      shell: bash
      working-directory: ${{github.workspace}}
      run: |
-        wget https://github.com/mstorsjo/llvm-mingw/releases/download/20250430/llvm-mingw-20250430-ucrt-ubuntu-22.04-x86_64.tar.xz
-        tar xvf llvm-mingw-20250430-ucrt-ubuntu-22.04-x86_64.tar.xz
+        wget https://github.com/mstorsjo/llvm-mingw/releases/download/20251216/llvm-mingw-20251216-ucrt-ubuntu-22.04-x86_64.tar.xz
+        tar xvf llvm-mingw-20251216-ucrt-ubuntu-22.04-x86_64.tar.xz

    - name: Configure freedv-gui
      shell: bash
      working-directory: ${{github.workspace}}
      run: |
        export WINEPREFIX=`pwd`/wine-env
-        export PATH=${{github.workspace}}/llvm-mingw-20250430-ucrt-ubuntu-22.04-x86_64/bin:$PATH
+        export PATH=${{github.workspace}}/llvm-mingw-20251216-ucrt-ubuntu-22.04-x86_64/bin:$PATH
        mkdir build_windows
        cd build_windows
        cmake -DENABLE_LTO=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=${{github.workspace}}/cross-compile/freedv-mingw-llvm-x86_64.cmake -DPython3_ROOT_DIR=$WINEPREFIX/drive_c/Program\ Files/Python314 ..
@ -78,7 +78,7 @@ jobs:
      shell: bash
      working-directory: ${{github.workspace}}/build_windows
      run: |
-        export PATH=${{github.workspace}}/llvm-mingw-20250430-ucrt-ubuntu-22.04-x86_64/bin:$PATH
+        export PATH=${{github.workspace}}/llvm-mingw-20251216-ucrt-ubuntu-22.04-x86_64/bin:$PATH
        make -j$(nproc) package

    - name: Calculate installer filename
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -44,7 +44,7 @@ else(APPLE)
        HOMEPAGE_URL ${PROJECT_HOMEPAGE_URL}
        LANGUAGES C CXX
    )
-endif(APPLE)    
+endif(APPLE)

 if(NOT DEFINED LINUX)
    string(FIND ${CMAKE_SYSTEM_NAME} "Linux" LINUX_LOC)
@ -109,10 +109,11 @@ include(cmake/CheckGit.cmake)
 CheckGitSetup()

 # Set default build flags.
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -g")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -g")
 if(APPLE)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+    set(CMAKE_OBJCXX_FLAGS "${CMAKE_OBJCXX_FLAGS} -g")
 endif(APPLE)

 set(CMAKE_CXX_STANDARD 17)
@ -154,6 +155,10 @@ set(STATIC_LIBGCC FALSE CACHE BOOL
 endif (LINUX)
 set(ENABLE_LTO FALSE CACHE BOOL
    "Enable Link Time Optimization (LTO)")
+set(PGO_INSTRUMENT CACHE BOOL
+    "Instrument for Profile Guided Optimization (PGO) (Clang only)")
+set(PGO_USE_PROFILE CACHE STRING
+    "Use profile data generated by PGO_INSTRUMENT to optimize binary (Clang only)")

 if(ENABLE_LTO)
 include(CheckIPOSupported)
@ -163,6 +168,18 @@ set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
 endif(result)
 endif(ENABLE_LTO)

+if(PGO_INSTRUMENT AND PGO_USE_PROFILE)
+    message(FATAL_ERROR "Cannot set both PGO_INSTRUMENT and PGO_USE_PROFILE.")
+elseif(PGO_INSTRUMENT)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-generate -ftemporal-profile")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-generate -ftemporal-profile")
+    set(CMAKE_OBJCXX_FLAGS "${CMAKE_OBJCXX_FLAGS} -fprofile-generate -ftemporal-profile")
+elseif(PGO_USE_PROFILE)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-profile-instr-unprofiled -fprofile-use=${PGO_USE_PROFILE}")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-profile-instr-unprofiled -fprofile-use=${PGO_USE_PROFILE}")
+    set(CMAKE_OBJCXX_FLAGS "${CMAKE_OBJCXX_FLAGS} -Wno-profile-instr-unprofiled -fprofile-use=${PGO_USE_PROFILE}")
+endif(PGO_INSTRUMENT AND PGO_USE_PROFILE)
+ 
 if(ENABLE_ASAN)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
--- a/README.md
+++ b/README.md
@ -176,3 +176,43 @@ cd build_osx
 make release
 ```

+## Building with Profile Guided Optimization (PGO)
+
+Profile Guided Optimization is an optimization strategy supported by the Clang compiler that uses profiling data
+to govern optimization decisions. This can significantly improve the runtime performance of many applications, especially
+with higher optimization levels. In testing with FreeDV, the AppImages are able to use up to 25% less CPU using a
+combination of `BUILD_TYPE=Release`, link-time optimization (LTO) and PGO. Currently this is supported for macOS and Linux 
+using the LLVM version of the Clang compiler (*not* the one Apple ships with Xcode).
+
+To build with PGO enabled:
+
+1. Perform an initial instrumented build using the `./build_linux.sh` (or `./build_osx.sh`) script, making sure to overide
+   the relevant environment variables to use the correct version of Clang. Example below with macOS and Homebrew:
+
+```
+$ BUILD_TYPE=Release UT_ENABLE=0 BUILD_DEPS=1 PGO_INSTRUMENT=1 CC=$(brew --prefix llvm@20)/bin/clang CXX=$(brew --prefix llvm@20)/bin/clang++ OBJCXX=$(brew --prefix llvm@20)/bin/clang ./build_osx.sh 
+```
+
+2. Execute FreeDV and use normally to obtain sufficient profiling data. An automated script is available to do this:
+
+```
+cd build_osx
+LLVM_PROFILE_FILE="code-%p.profraw" FREEDV_COMPUTER_TO_RADIO_DEVICE="VB-Cable" FREEDV_RADIO_TO_COMPUTER_DEVICE="VB-Cable" FREEDV_COMPUTER_TO_SPEAKER_DEVICE="BlackHole1 2ch" FREEDV_MICROPHONE_TO_COMPUTER_DEVICE="BlackHole2 2ch" ../test/generate_pgo_profiles.sh 2>&1
+$(brew --prefix llvm@20)/bin/llvm-profdata merge -output $(pwd)/../code.profdata code-*.profraw
+```
+
+(`FREEDV_COMPUTER_TO_RADIO_DEVICE`, `FREEDV_RADIO_TO_COMPUTER_DEVICE`, `FREEDV_COMPUTER_TO_SPEAKER_DEVICE` and `FREEDV_MICROPHONE_TO_COMPUTER_DEVICE` are optional on Linux,
+where PulseAudio/pipewire null sink(s) will be created if these are not provided).
+
+3. Perform a final build with the collected profiling data:
+
+```
+rm -rf build_osx
+BUILD_TYPE=Release UT_ENABLE=0 UNIV_BUILD=1 BUILD_DEPS=1 PGO_USE_PROFILE=$(pwd)/code.profdata CC=$(brew --prefix llvm@20)/bin/clang CXX=$(brew --prefix llvm@20)/bin/clang++ OBJCXX=$(brew --prefix llvm@20)/bin/clang  ./build_osx.sh
+```
+
+Limitations:
+
+1. The best results are obtained if having FreeDV build all required dependencies itself (`BUILD_DEPS=1`). The optimization process 
+   is unable to touch already-compiled dyanmic libraries, so performance gains will likely be less without this option.
+2. On that same note, this will not touch most of the RADE modem due to its use of Python. This may change in future releases.
--- a/USER_MANUAL.md
+++ b/USER_MANUAL.md
@ -933,6 +933,7 @@ LDPC | Low Density Parity Check Codes - a family of powerful FEC codes
 3. Build system:
    * Use Clang to build AppImages for better performance. (PR #1149)
    * Enable link-time optimization for AppImages, DMGs and Windows builds. (PR #1163)
+    * Enable profile-guided optimation for AppImages. (PR #1173)
 4. Other:
    * Remove 5.3665 MHz as a default frequency. (PR #1187)

--- a/appimage/make-appimage.sh
+++ b/appimage/make-appimage.sh
@ -24,6 +24,8 @@ APPDIR="$APPNAME.AppDir"
 BUILDDIR="../"
 MACH_ARCH=`uname -m`

+export NO_STRIP=1
+
 # Change to the directory where this script is located
 cd "$(dirname "$(realpath "$0")")"

--- a/build_linux.sh
+++ b/build_linux.sh
@ -16,6 +16,8 @@ WITH_TSAN=${WITH_TSAN:-0}
 WITH_UBSAN=${WITH_UBSAN:-0}
 STATIC_LIBGCC=${STATIC_LIBGCC:-0}
 ENABLE_LTO=${ENABLE_LTO:-0}
+PGO_INSTRUMENT=${PGO_INSTRUMENT:-0}
+PGO_USE_PROFILE=${PGO_USE_PROFILE:-}

 export FREEDVGUIDIR=${PWD}

@ -25,5 +27,5 @@ if [ -d .git ]; then
     git pull
 fi
 mkdir  -p build_linux && cd build_linux && rm -Rf *
-cmake -DENABLE_LTO=${ENABLE_LTO} -DSTATIC_LIBGCC=${STATIC_LIBGCC} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DUNITTEST=$UT_ENABLE ..
+cmake -DPGO_INSTRUMENT=${PGO_INSTRUMENT} -DPGO_USE_PROFILE=${PGO_USE_PROFILE} -DENABLE_LTO=${ENABLE_LTO} -DSTATIC_LIBGCC=${STATIC_LIBGCC} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DUNITTEST=$UT_ENABLE ..
 make -j$(nproc)
--- a/build_osx.sh
+++ b/build_osx.sh
@ -17,14 +17,16 @@ export WITH_RTSAN=${WITH_RTSAN:-0}
 export WITH_TSAN=${WITH_TSAN:-0}
 export WITH_UBSAN=${WITH_UBSAN:-0}
 export ENABLE_LTO=${ENABLE_LTO:-0}
+export PGO_INSTRUMENT=${PGO_INSTRUMENT:-0}
+export PGO_USE_PROFILE=${PGO_USE_PROFILE:-}

 # Prerequisite: build dylibbundler
 if [ ! -d macdylibbundler ]; then
    git clone https://github.com/tmiw/macdylibbundler.git
+    cd macdylibbundler && git checkout main && git pull
+    make -j$(sysctl -n hw.logicalcpu)
+    cd ..
 fi
-cd macdylibbundler && git checkout main && git pull
-make -j$(sysctl -n hw.logicalcpu)
-cd ..

 # Prerequisite: Python
 if [ ! -d Python.framework ]; then
@ -32,12 +34,12 @@ if [ ! -d Python.framework ]; then
    cd relocatable-python
    ./make_relocatable_python_framework.py --python-version 3.14.2 --os-version=11 --destination $PWD/../
    cd ..
-fi

-# Prerequisite: Python packages
-rm -rf pkg-tmp
-./generate-univ-pkgs.sh
-./Python.framework/Versions/Current/bin/pip3 install pkg-tmp/*.whl
+    # Prerequisite: Python packages
+    rm -rf pkg-tmp
+    ./generate-univ-pkgs.sh
+    ./Python.framework/Versions/Current/bin/pip3 install pkg-tmp/*.whl
+fi

 # Prerequisite: build hamlib
 cd $FREEDVGUIDIR
@ -48,9 +50,9 @@ if [ $BUILD_DEPS == 1 ]; then
    cd hamlib-code && git checkout 4.6.5 && git pull
    ./bootstrap 
    if [ $UNIV_BUILD == 1 ]; then
-        CFLAGS="-g -O2 -mmacosx-version-min=10.9 -arch x86_64 -arch arm64" CXXFLAGS="-g -O2 -mmacosx-version-min=10.9 -arch x86_64 -arch arm64" ./configure --enable-shared --prefix $HAMLIBDIR
+        CFLAGS="-g -O3 -mmacosx-version-min=11.0 -arch x86_64 -arch arm64" CXXFLAGS="-g -O3 -mmacosx-version-min=11.0 -arch x86_64 -arch arm64" ./configure --enable-shared --prefix $HAMLIBDIR
    else
-        CFLAGS="-g -O2 -mmacosx-version-min=10.9" CXXFLAGS="-g -O2 -mmacosx-version-min=10.9" ./configure --enable-shared --prefix $HAMLIBDIR
+        CFLAGS="-g -O3 -mmacosx-version-min=11.0" CXXFLAGS="-g -O3 -mmacosx-version-min=11.0" ./configure --enable-shared --prefix $HAMLIBDIR
    fi

    make -j$(sysctl -n hw.logicalcpu) 
@ -69,9 +71,9 @@ if [ "$CODESIGN_KEYCHAIN_PROFILE" != "" ]; then
 fi

 if [ $BUILD_DEPS == 1 ]; then 
-    cmake -DENABLE_LTO=${ENABLE_LTO} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DPython3_ROOT_DIR=$PWD/../Python.framework/Versions/3.14 -DBUILD_OSX_UNIVERSAL=${UNIV_BUILD} -DUNITTEST=$UT_ENABLE -DBOOTSTRAP_WXWIDGETS=1 -DUSE_STATIC_SPEEXDSP=1 -DUSE_STATIC_PORTAUDIO=1 -DUSE_STATIC_SAMPLERATE=1 -DUSE_STATIC_SNDFILE=1 -DHAMLIB_INCLUDE_DIR=${HAMLIBDIR}/include -DHAMLIB_LIBRARY=${HAMLIBDIR}/lib/libhamlib.dylib -DMACOS_CODESIGN_IDENTITY=${CODESIGN_IDENTITY} ${CODESIGN_KEYCHAIN_PROFILE_ARG} ..
+    cmake -DCMAKE_AR=/usr/bin/ar -DCMAKE_RANLIB=/usr/bin/ranlib -DPGO_INSTRUMENT=${PGO_INSTRUMENT} -DPGO_USE_PROFILE=${PGO_USE_PROFILE} -DENABLE_LTO=${ENABLE_LTO} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DPython3_ROOT_DIR=$PWD/../Python.framework/Versions/3.14 -DBUILD_OSX_UNIVERSAL=${UNIV_BUILD} -DUNITTEST=$UT_ENABLE -DBOOTSTRAP_WXWIDGETS=1 -DUSE_STATIC_SPEEXDSP=1 -DUSE_STATIC_PORTAUDIO=1 -DUSE_STATIC_SAMPLERATE=1 -DUSE_STATIC_SNDFILE=1 -DHAMLIB_INCLUDE_DIR=${HAMLIBDIR}/include -DHAMLIB_LIBRARY=${HAMLIBDIR}/lib/libhamlib.dylib -DMACOS_CODESIGN_IDENTITY=${CODESIGN_IDENTITY} ${CODESIGN_KEYCHAIN_PROFILE_ARG} ..
 else
-    cmake -DENABLE_LTO=${ENABLE_LTO} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DPython3_ROOT_DIR=$PWD/../Python.framework/Versions/3.14 -DBUILD_OSX_UNIVERSAL=${UNIV_BUILD} -DUNITTEST=$UT_ENABLE -DMACOS_CODESIGN_IDENTITY=${CODESIGN_IDENTITY} ${CODESIGN_KEYCHAIN_PROFILE_ARG} ..
+    cmake -DCMAKE_AR=/usr/bin/ar -DCMAKE_RANLIB=/usr/bin/ranlib -DPGO_INSTRUMENT=${PGO_INSTRUMENT} -DPGO_USE_PROFILE=${PGO_USE_PROFILE} -DENABLE_LTO=${ENABLE_LTO} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DENABLE_UBSAN=${WITH_UBSAN} -DENABLE_TSAN=${WITH_TSAN} -DENABLE_RTSAN=${WITH_RTSAN} -DENABLE_ASAN=${WITH_ASAN} -DUSE_NATIVE_AUDIO=$USE_NATIVE_AUDIO -DPython3_ROOT_DIR=$PWD/../Python.framework/Versions/3.14 -DBUILD_OSX_UNIVERSAL=${UNIV_BUILD} -DUNITTEST=$UT_ENABLE -DMACOS_CODESIGN_IDENTITY=${CODESIGN_IDENTITY} ${CODESIGN_KEYCHAIN_PROFILE_ARG} ..
 fi

 make -j$(sysctl -n hw.logicalcpu)
--- a/cmake/BuildCodec2.cmake
+++ b/cmake/BuildCodec2.cmake
@ -1,5 +1,9 @@
 set(CODEC2_CMAKE_ARGS -DUNITTEST=FALSE)

+if(APPLE)
+    set(CODEC2_CMAKE_ARGS ${CODEC2_CMAKE_ARGS} -DCMAKE_AR=${CMAKE_AR} -DCMAKE_RANLIB=${CMAKE_RANLIB})
+endif(APPLE)
+
 if(CMAKE_CROSSCOMPILING)
    set(CODEC2_CMAKE_ARGS ${CODEC2_CMAKE_ARGS} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE})
 endif()
--- a/cmake/BuildEbur128.cmake
+++ b/cmake/BuildEbur128.cmake
@ -3,6 +3,10 @@ set(EBUR128_VERSION "1.2.6")
 # Static libraries on some platforms need PIC
 set(EBUR128_CMAKE_ARGS -DWITH_STATIC_PIC=1 -DBUILD_SHARED_LIBS=0)

+if(APPLE)
+    set(EBUR128_CMAKE_ARGS ${EBUR128_CMAKE_ARGS} -DCMAKE_AR=${CMAKE_AR} -DCMAKE_RANLIB=${CMAKE_RANLIB})
+endif(APPLE)
+
 if(CMAKE_CROSSCOMPILING)
    set(EBUR128_CMAKE_ARGS ${EBUR128_CMAKE_ARGS} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE})
 endif()
--- a/cmake/BuildHamlib.cmake
+++ b/cmake/BuildHamlib.cmake
@ -1,13 +1,13 @@
 if(MINGW AND CMAKE_CROSSCOMPILING)
-    set(CONFIGURE_COMMAND ./configure --host=${HOST} --target=${HOST} --without-cxx-binding --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-libusb CFLAGS=-g\ -O2\ -fstack-protector CXXFLAGS=-g\ -O2\ -fstack-protector)
+    set(CONFIGURE_COMMAND ./configure --host=${HOST} --target=${HOST} --without-cxx-binding --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-libusb CFLAGS=-g\ -O3\ -fstack-protector CXXFLAGS=-g\ -O3\ -fstack-protector)
    set(HAMLIB_PATCH_CMD patch -p1 < ${CMAKE_SOURCE_DIR}/cmake/hamlib-windows.patch)
 else(MINGW AND CMAKE_CROSSCOMPILING)
    set(HAMLIB_PATCH_CMD "")
 if(APPLE)
 if(BUILD_OSX_UNIVERSAL)
-    set(CONFIGURE_COMMAND ./configure --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-cxx-binding --without-libusb CFLAGS=-g\ -O2\ -mmacosx-version-min=10.9\ -arch\ x86_64\ -arch\ arm64 CXXFLAGS=-g\ -O2\ -mmacosx-version-min=10.9\ -arch\ x86_64\ -arch\ arm64)
+    set(CONFIGURE_COMMAND ./configure --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-cxx-binding --without-libusb CFLAGS=-g\ -O3\ -mmacosx-version-min=11.0\ -arch\ x86_64\ -arch\ arm64 CXXFLAGS=-g\ -O3\ -mmacosx-version-min=11.0\ -arch\ x86_64\ -arch\ arm64)
 else()
-    set(CONFIGURE_COMMAND ./configure --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-cxx-binding --without-libusb CFLAGS=-g\ -O2\ -mmacosx-version-min=10.9 CXXFLAGS=-g\ -O2\ -mmacosx-version-min=10.9)
+    set(CONFIGURE_COMMAND ./configure --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-cxx-binding --without-libusb CFLAGS=-g\ -O3\ -mmacosx-version-min=11.0 CXXFLAGS=-g\ -O3\ -mmacosx-version-min=11.0)
 endif(BUILD_OSX_UNIVERSAL)
 else()
    set(CONFIGURE_COMMAND ./configure --enable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist --without-cxx-binding --without-libusb CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER})
--- a/cmake/BuildLame.cmake
+++ b/cmake/BuildLame.cmake
@ -14,7 +14,7 @@ if(APPLE AND BUILD_OSX_UNIVERSAL)
 ExternalProject_Add(build_mp3lame_x86
    DOWNLOAD_EXTRACT_TIMESTAMP NO
    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=x86_64-apple-darwin --target=x86_64-apple-darwin CFLAGS=-arch\ x86_64\ -O2\ -mmacosx-version-min=10.11
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=x86_64-apple-darwin --target=x86_64-apple-darwin CFLAGS=-arch\ x86_64\ -O3\ -mmacosx-version-min=11.0
    BUILD_COMMAND $(MAKE) && $(MAKE) install
    INSTALL_COMMAND ""
    URL ${LAME_URL}
@ -23,7 +23,7 @@ ExternalProject_Add(build_mp3lame_x86
 ExternalProject_Add(build_mp3lame_arm
    DOWNLOAD_EXTRACT_TIMESTAMP NO
    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=aarch64-apple-darwin --target=aarch64-apple-darwin CFLAGS=-arch\ arm64\ -O2\ -mmacosx-version-min=10.11
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=aarch64-apple-darwin --target=aarch64-apple-darwin CFLAGS=-arch\ arm64\ -O3\ -mmacosx-version-min=11.0
    BUILD_COMMAND $(MAKE) && $(MAKE) install
    INSTALL_COMMAND ""
    URL ${LAME_URL}
--- a/cmake/BuildMpg123.cmake
+++ b/cmake/BuildMpg123.cmake
@ -14,7 +14,7 @@ if(APPLE AND BUILD_OSX_UNIVERSAL)
 ExternalProject_Add(build_mpg123_x86
    DOWNLOAD_EXTRACT_TIMESTAMP NO
    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=x86_64-apple-darwin --target=x86_64-apple-darwin CFLAGS=-arch\ x86_64\ -O2\ -mmacosx-version-min=10.11
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=x86_64-apple-darwin --target=x86_64-apple-darwin CFLAGS=-arch\ x86_64\ -O3\ -mmacosx-version-min=11.0
    BUILD_COMMAND $(MAKE) && $(MAKE) install
    INSTALL_COMMAND ""
    URL ${MPG123_URL}
@ -23,7 +23,7 @@ ExternalProject_Add(build_mpg123_x86
 ExternalProject_Add(build_mpg123_arm
    DOWNLOAD_EXTRACT_TIMESTAMP NO
    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=aarch64-apple-darwin --target=aarch64-apple-darwin CFLAGS=-arch\ arm64\ -O2\ -mmacosx-version-min=10.11
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=aarch64-apple-darwin --target=aarch64-apple-darwin CFLAGS=-arch\ arm64\ -O3\ -mmacosx-version-min=11.0
    BUILD_COMMAND $(MAKE) && $(MAKE) install
    INSTALL_COMMAND ""
    URL ${MPG123_URL}
--- a/cmake/BuildSndfile.cmake
+++ b/cmake/BuildSndfile.cmake
@ -7,6 +7,10 @@ if(CMAKE_CROSSCOMPILING)
    set(SNDFILE_CMAKE_ARGS ${SNDFILE_CMAKE_ARGS} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE})
 endif()

+if(APPLE)
+    set(SNDFILE_CMAKE_ARGS ${SNDFILE_CMAKE_ARGS} -DCMAKE_AR=${CMAKE_AR} -DCMAKE_RANLIB=${CMAKE_RANLIB})
+endif(APPLE)
+
 include(ExternalProject)
 ExternalProject_Add(sndfile
    URL https://github.com/libsndfile/libsndfile/archive/refs/tags/1.2.2.tar.gz
--- a/cmake/configure_speexdsp_osx.sh
+++ b/cmake/configure_speexdsp_osx.sh
@ -1,3 +1,3 @@
 #!/usr/bin/env bash

-CFLAGS="-g -O2 -mmacosx-version-min=10.9" ./configure --prefix=$1 --disable-examples
+CFLAGS="-g -O3 -mmacosx-version-min=11.0" ./configure --prefix=$1 --disable-examples
--- a/cmake/configure_speexdsp_osx_universal.sh
+++ b/cmake/configure_speexdsp_osx_universal.sh
@ -1,3 +1,3 @@
 #!/usr/bin/env bash

-CFLAGS="-g -O2 -arch arm64 -arch x86_64 -mmacosx-version-min=10.9" ./configure --prefix=$1 --disable-examples
+CFLAGS="-g -O3 -arch arm64 -arch x86_64 -mmacosx-version-min=11.0" ./configure --prefix=$1 --disable-examples
--- a/test/freedv-pgo.conf.tmpl
+++ b/test/freedv-pgo.conf.tmpl
@ -0,0 +1,192 @@
+FirstTimeUse=0
+ExperimentalFeatures=1
+[Audio]
+soundCard1SampleRate=-1
+soundCard2SampleRate=-1
+soundCard1InDeviceName=@FREEDV_RADIO_TO_COMPUTER_DEVICE@
+soundCard1InSampleRate=48000
+soundCard1OutDeviceName=@FREEDV_COMPUTER_TO_RADIO_DEVICE@
+soundCard1OutSampleRate=48000
+soundCard2InDeviceName=@FREEDV_MICROPHONE_TO_COMPUTER_DEVICE@
+soundCard2InSampleRate=48000
+soundCard2OutDeviceName=@FREEDV_COMPUTER_TO_SPEAKER_DEVICE@
+soundCard2OutSampleRate=48000
+SquelchActive=1
+SquelchLevel=-4
+fifoSize_ms=640
+transmitLevel=0
+snrSlow=0
+mode=257
+TxRxDelayMilliseconds=0
+[Filter]
+codec2LPCPostFilterGamma=50
+codec2LPCPostFilterBeta=20
+MicInBassFreqHz=100
+MicInBassGaindB=0
+MicInTrebleFreqHz=3000
+MicInTrebleGaindB=0
+MicInMidFreqHz=1500
+MicInMidGaindB=0
+MicInMidQ=100
+MicInVolInDB=0
+SpkOutBassFreqHz=100
+SpkOutBassGaindB=0
+SpkOutTrebleFreqHz=3000
+SpkOutTrebleGaindB=0
+SpkOutMidFreqHz=1500
+SpkOutMidGaindB=0
+SpkOutMidQ=100
+SpkOutVolInDB=0
+codec2LPCPostFilterEnable=1
+codec2LPCPostFilterBassBoost=1
+speexpp_enable=1
+700C_EQ=1
+[Filter/MicIn]
+EQEnable=0
+BassFreqHz=100
+BassGaindB=0
+TrebleFreqHz=3000
+TrebleGaindB=0
+MidFreqHz=1500
+MidGaindB=0
+MidQ=1
+VolInDB=0
+[Filter/SpkOut]
+EQEnable=0
+BassFreqHz=100
+BassGaindB=0
+TrebleFreqHz=3000
+TrebleGaindB=0
+MidFreqHz=1500
+MidGaindB=0
+MidQ=1
+VolInDB=0
+[Filter/codec2LPCPostFilter]
+Gamma=50
+Beta=20
+[Hamlib]
+UseForPTT=0
+EnableFreqModeChanges=0
+EnableFreqChangesOnly=0
+UseAnalogModes=0
+IcomCIVHex=0
+RigNameStr=Hamlib NET rigctl
+PttType=0
+SerialRate=0
+SerialPort=localhost:4575
+PttSerialPort=localhost:4575
+RigName=0
+[Rig]
+UseSerialPTT=0
+Port=
+UseRTS=1
+RTSPolarity=1
+UseDTR=0
+DTRPolarity=0
+UseSerialPTTInput=0
+PttInPort=
+CTSPolarity=0
+leftChannelVoxTone=0
+EnableSpacebarForPTT=1
+HalfDuplex=1
+MultipleRx=1
+SingleRxThread=1
+[PSKReporter]
+Enable=0
+Callsign=
+GridSquare=
+FrequencyHzStr=0
+[Data]
+CallSign=
+[Reporting]
+Enable=1
+Callsign=ZZ0ZZZ
+GridSquare=ZZ12ZZ
+FrequencyAsKHz=0
+FrequencyList=1.9970,3.6250,3.6430,3.6930,3.6970,3.8500,5.4035,5.3665,5.3685,7.1770,7.1970,14.2360,14.2400,18.1180,21.3130,24.9330,28.3300,28.7200,10489.6400
+ManualFrequencyReporting=1
+DirectionAsCardinal=0
+Frequency=14236000
+[Reporting/PSKReporter]
+Enable=0
+[Reporting/FreeDV]
+Enable=1
+Hostname=qso.freedv.org
+CurrentBandFilter=0
+UseMetricDistances=1
+BandFilterTracksFrequency=0
+ForceReceiveOnly=0
+StatusText=FreeDV Automated Test System - https://github.com/drowe67/freedv-gui
+RecentStatusTexts=
+TxRowBackgroundColor=#fc4500
+TxRowForegroundColor=#000000
+RxRowBackgroundColor=#379baf
+RxRowForegroundColor=#000000
+MsgRowBackgroundColor=#E58BE5
+MsgRowForegroundColor=#000000
+[Reporting/FreeDV/BandFilterTracking]
+TracksFreqBand=1
+TracksExactFreq=0
+[CallsignList]
+UseUTCTime=0
+[FreeDV2020]
+Allowed=0
+[MainFrame]
+left=0
+top=50
+width=800
+height=780
+rxNbookCtrl=0
+TabLayout=3fb6c00069659632006bc6da00000003=+1|3f62f8006965963700790cb800000004=+2|3f60e3006965964100b6e44400000005=+4|3f620e0069659660013d444300000007=+3|3f89f800696596640151d80e00000007=*0@layout2|name=dummy;caption=;state=2098174;dir=3;layer=0;row=0;pos=0;prop=100000;bestw=180;besth=180;minw=180;minh=180;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|name=3fb6c00069659632006bc6da00000003;caption=;state=2098172;dir=5;layer=1;row=0;pos=0;prop=100000;bestw=425;besth=321;minw=-1;minh=-1;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|name=3f62f8006965963700790cb800000004;caption=;state=2098172;dir=1;layer=1;row=0;pos=1;prop=100000;bestw=180;besth=180;minw=-1;minh=-1;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|name=3f60e3006965964100b6e44400000005;caption=;state=2098172;dir=1;layer=1;row=0;pos=0;prop=100000;bestw=180;besth=180;minw=-1;minh=-1;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|name=3f620e0069659660013d444300000007;caption=;state=2098172;dir=1;layer=0;row=1;pos=0;prop=100000;bestw=180;besth=180;minw=-1;minh=-1;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|name=3f89f800696596640151d80e00000007;caption=;state=2098172;dir=1;layer=0;row=1;pos=1;prop=100000;bestw=180;besth=180;minw=-1;minh=-1;maxw=-1;maxh=-1;floatx=-1;floaty=-1;floatw=-1;floath=-1|dock_size(1,1,0)=230|dock_size(1,0,1)=182|dock_size(5,1,0)=427|
+[Windows]
+[Windows/AudioConfig]
+left=26
+top=23
+width=918
+height=739
+[Windows/FreeDVReporter]
+left=800
+top=50
+width=512
+height=384
+visible=1
+currentSort=-1
+currentSortDirection=1
+reportingUserMsgColWidth=130
+[File]
+playFileToMicInPath=
+recFileFromRadioPath=
+recFileFromRadioSecs=60
+recFileFromModulatorPath=
+recFileFromModulatorSecs=60
+playFileFromRadioPath=
+[VoiceKeyer]
+WaveFilePath=/home/mooneer/Documents
+WaveFile=voicekeyer.wav
+RxPause=10
+Repeats=5
+[FreeDV700]
+txClip=1
+txBPF=1
+[Noise]
+noise_snr=2
+[Debug]
+console=0
+verbose=0
+APIverbose=0
+[Waterfall]
+Color=0
+[Stats]
+ResetTime=10
+[Plot]
+[Plot/Spectrum]
+CurrentAveraging=0
+[Monitor]
+VoiceKeyerAudio=0
+TransmitAudio=0
+VoiceKeyerAudioVol=0
+TransmitAudioVol=0
+[QuickRecord]
+SavePath=/home/mooneer/Documents
+[Modem]
+enableLegacyModes=1
--- a/test/generate_pgo_profiles.sh
+++ b/test/generate_pgo_profiles.sh
@ -0,0 +1,133 @@
+#!/bin/bash
+
+# Determine sox driver to use for recording/playback
+OPERATING_SYSTEM=`uname`
+if [ "$OPERATING_SYSTEM" == "Darwin" ]; then
+    SOX_DRIVER=coreaudio
+    FREEDV_BINARY=${FREEDV_BINARY:-src/FreeDV.app/Contents/MacOS/FreeDV}
+    PYTHON_BINARY=${PYTHON_BINARY:-src/FreeDV.app/Contents/Frameworks/Python.framework/Versions/Current/bin/python3}
+else
+    SOX_DRIVER=alsa
+    FREEDV_BINARY=${FREEDV_BINARY:-src/freedv}
+    PYTHON_BINARY=${PYTHON_BINARY:-python3}
+fi
+
+createVirtualAudioCable () {
+    CABLE_NAME=$1
+    pactl load-module module-null-sink sink_name=$CABLE_NAME sink_properties=device.description=$CABLE_NAME 
+}
+
+waitForCableUp () {
+    CABLE_NAME=$1
+    until (pactl list short sinks | grep -E "^[0-9]+\\s+${CABLE_NAME}\\s+" >/dev/null)
+    do
+        echo "Waiting for $CABLE_NAME to come up..."
+        sleep 1;
+    done
+}
+
+FREEDV_RADIO_TO_COMPUTER_DEVICE="${FREEDV_RADIO_TO_COMPUTER_DEVICE:-FreeDV_Radio_To_Computer}"
+FREEDV_COMPUTER_TO_SPEAKER_DEVICE="${FREEDV_COMPUTER_TO_SPEAKER_DEVICE:-FreeDV_Computer_To_Speaker}"
+FREEDV_MICROPHONE_TO_COMPUTER_DEVICE="${FREEDV_MICROPHONE_TO_COMPUTER_DEVICE:-FreeDV_Microphone_To_Computer}"
+FREEDV_COMPUTER_TO_RADIO_DEVICE="${FREEDV_COMPUTER_TO_RADIO_DEVICE:-FreeDV_Computer_To_Radio}"
+
+# Automated script to help find audio dropouts.
+# NOTE: this must be run from "build_*". Also assumes PulseAudio/pipewire or macOS Core Audio,
+# does not work in Windows.
+if [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    DRIVER_INDEX_FREEDV_RADIO_TO_COMPUTER=$(createVirtualAudioCable FreeDV_Radio_To_Computer)
+    waitForCableUp FreeDV_Radio_To_Computer
+    DRIVER_INDEX_FREEDV_COMPUTER_TO_SPEAKER=$(createVirtualAudioCable FreeDV_Computer_To_Speaker)
+    waitForCableUp FreeDV_Computer_To_Speaker
+    DRIVER_INDEX_FREEDV_MICROPHONE_TO_COMPUTER=$(createVirtualAudioCable FreeDV_Microphone_To_Computer)
+    waitForCableUp FreeDV_Microphone_To_Computer
+    DRIVER_INDEX_FREEDV_COMPUTER_TO_RADIO=$(createVirtualAudioCable FreeDV_Computer_To_Radio)
+    waitForCableUp FreeDV_Computer_To_Radio
+    DRIVER_INDEX_LOOPBACK=`pactl load-module module-loopback source="FreeDV_Computer_To_Radio.monitor" sink="FreeDV_Radio_To_Computer"`
+fi
+
+# Determine correct record device to retrieve TX data
+FREEDV_CONF_FILE=freedv-pgo.conf 
+
+PLAY_DEVICE="$FREEDV_RADIO_TO_COMPUTER_DEVICE"
+if [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    REC_DEVICE="$FREEDV_COMPUTER_TO_RADIO_DEVICE.monitor"
+else
+    REC_DEVICE="$FREEDV_COMPUTER_TO_RADIO_DEVICE"
+fi
+
+# Generate config file
+SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+if [ "$FREEDV_RADIO_TO_COMPUTER_DEVICE" == "FreeDV_Radio_To_Computer" ] && [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    sed "s/@FREEDV_RADIO_TO_COMPUTER_DEVICE@/$FREEDV_RADIO_TO_COMPUTER_DEVICE.monitor/g" $SCRIPTPATH/$FREEDV_CONF_FILE.tmpl > $(pwd)/$FREEDV_CONF_FILE
+else
+    sed "s/@FREEDV_RADIO_TO_COMPUTER_DEVICE@/$FREEDV_RADIO_TO_COMPUTER_DEVICE/g" $SCRIPTPATH/$FREEDV_CONF_FILE.tmpl > $(pwd)/$FREEDV_CONF_FILE
+fi
+
+sed "s/@FREEDV_COMPUTER_TO_RADIO_DEVICE@/$FREEDV_COMPUTER_TO_RADIO_DEVICE/g" $(pwd)/$FREEDV_CONF_FILE > $(pwd)/$FREEDV_CONF_FILE.tmp
+mv $(pwd)/$FREEDV_CONF_FILE.tmp $(pwd)/$FREEDV_CONF_FILE
+sed "s/@FREEDV_COMPUTER_TO_SPEAKER_DEVICE@/$FREEDV_COMPUTER_TO_SPEAKER_DEVICE/g" $(pwd)/$FREEDV_CONF_FILE > $(pwd)/$FREEDV_CONF_FILE.tmp
+mv $(pwd)/$FREEDV_CONF_FILE.tmp $(pwd)/$FREEDV_CONF_FILE
+
+if [ "$FREEDV_MICROPHONE_TO_COMPUTER_DEVICE" == "FreeDV_Microphone_To_Computer" ] && [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    sed "s/@FREEDV_MICROPHONE_TO_COMPUTER_DEVICE@/$FREEDV_MICROPHONE_TO_COMPUTER_DEVICE.monitor/g" $(pwd)/$FREEDV_CONF_FILE > $(pwd)/$FREEDV_CONF_FILE.tmp
+else
+    sed "s/@FREEDV_MICROPHONE_TO_COMPUTER_DEVICE@/$FREEDV_MICROPHONE_TO_COMPUTER_DEVICE/g" $(pwd)/$FREEDV_CONF_FILE > $(pwd)/$FREEDV_CONF_FILE.tmp
+fi
+mv $(pwd)/$FREEDV_CONF_FILE.tmp $(pwd)/$FREEDV_CONF_FILE
+
+# Resample test file to 48 kHz. Needed for CI environment to reduce CPU usage.
+if [ ! -d "$(pwd)/rade_src" ]; then
+    git clone -b main https://github.com/drowe67/radae.git rade_src
+fi
+sox $(pwd)/rade_src/wav/all.wav -r 48000 $(pwd)/tx_in.wav
+
+# Start recording
+if [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    parecord --channels=1 --file-format=wav --device "$REC_DEVICE" test.wav &
+else
+    sox --buffer 32768 -t $SOX_DRIVER "$REC_DEVICE" -c 1 -t wav test.wav >/dev/null 2>&1 &
+fi
+RECORD_PID=$!
+
+# Start FreeDV in test mode to record TX
+TX_ARGS="-txfile $(pwd)/tx_in.wav -txfeaturefile $(pwd)/txfeatures.f32 "
+$FREEDV_BINARY -f $(pwd)/$FREEDV_CONF_FILE -ut tx -utmode RADEV1 $TX_ARGS >tmp.log 2>&1 &
+
+FDV_PID=$!
+
+#if [ "$OPERATING_SYSTEM" != "Linux" ]; then
+#    xctrace record --template "Audio System Trace" --instrument "Time Profiler" --window 3m --output "instruments_trace_tx_${FDV_PID}.trace" --attach $FDV_PID
+#fi
+
+#sleep 30 
+#screencapture ../screenshot.png
+#wpctl status
+#pw-top -b -n 5
+wait $FDV_PID
+cat tmp.log
+
+# Stop recording, play back in RX mode
+kill $RECORD_PID
+#cp $(pwd)/gmon.out $(pwd)/gmon.out.tx
+
+$FREEDV_BINARY -f $(pwd)/$FREEDV_CONF_FILE -ut rx -utmode RADEV1 -rxfile $(pwd)/test.wav -rxfeaturefile $(pwd)/rxfeatures.f32 >tmp.log 2>&1 &
+FDV_PID=$!
+
+#if [ "$OPERATING_SYSTEM" != "Linux" ]; then
+#    xctrace record --template "Audio System Trace" --instrument "Time Profiler" --window 3m --output "instruments_trace_rx_${FDV_PID}.trace" --attach $FDV_PID
+#fi
+wait $FDV_PID
+FREEDV_EXIT_CODE=$?
+cat tmp.log
+
+# Clean up PulseAudio virtual devices
+if [ "$OPERATING_SYSTEM" == "Linux" ]; then
+    pactl unload-module $DRIVER_INDEX_LOOPBACK
+    pactl unload-module $DRIVER_INDEX_FREEDV_RADIO_TO_COMPUTER
+    pactl unload-module $DRIVER_INDEX_FREEDV_COMPUTER_TO_SPEAKER
+    pactl unload-module $DRIVER_INDEX_FREEDV_COMPUTER_TO_RADIO
+    pactl unload-module $DRIVER_INDEX_FREEDV_MICROPHONE_TO_COMPUTER
+fi
+
+exit $FREEDV_EXIT_CODE