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--- projekte:sekwai:prepare [2025/07/12 10:00] – [venv] dominik
+++ projekte:sekwai:prepare [2025/07/28 04:46] (current) – [venv] dominik
@@ Line 1: / Line 1: @@
 ====== Vorbereitung Pi ======
-> **Hinweis** \\ Für Python Compilieren scheint es besser zu sein eher **32Bit als OS** zu verwenden. \\ Die 64Bit Variante hat sich  mehrfach und reproduzierbar einfach aufgehängt.
 ===== Pakete =====
   * Allgemeines Update & Tools
-    * ''sudo apt update && sudo apt upgrade -y && sudo apt install -y git git-lfs silversearcher-ag wavemon hexedit sudoku tcpdump iptraf mc htop dcfldd nano usbutils openvpn ranger tldr ncdu can-utils multitail fd-find lsof x11vnc terminator minicom cutecom joystick jstest-gtk i2c-tools speedtest-cli iotop fio ir-keytable curl inxi && mkdir -p ~/.local/share && tldr -u''
+    * ''sudo apt update && sudo apt upgrade -y && sudo apt install -y git git-lfs silversearcher-ag wavemon hexedit sudoku tcpdump iptraf mc htop dcfldd nano usbutils openvpn ranger tldr ncdu can-utils multitail fd-find lsof x11vnc terminator minicom cutecom joystick jstest-gtk i2c-tools speedtest-cli iotop fio ir-keytable curl inxi stress-ng && mkdir -p ~/.local/share && tldr -u''
   * Devtools installieren
-    * ''sudo apt install -y thonny cutecom sqlitebrowser build-essential pkg-config libusb-1.0-0-dev cmake make gcc python3-dev libhidapi-dev python3-virtualenv python3-tk lm-sensors mariadb-server mariadb-client libopenblas-dev linux-perf''
+    * ''sudo apt install -y thonny cutecom sqlitebrowser build-essential pkg-config libusb-1.0-0-dev cmake make gcc python3-dev libhidapi-dev python3-virtualenv python3-tk lm-sensors libopenblas-dev linux-perf''
   * Unnützen Kram deinstallieren
     * ''sudo apt autoremove -y modem* cups* pulse* avahi* triggerhappy*''
@@ Line 15: / Line 13: @@
   * One 4 All
-    * ''sudo apt update && sudo apt upgrade -y && sudo apt install -y git git-lfs silversearcher-ag wavemon hexedit sudoku tcpdump iptraf mc htop dcfldd nano usbutils openvpn ranger tldr ncdu can-utils multitail fd-find lsof x11vnc terminator minicom cutecom joystick jstest-gtk i2c-tools speedtest-cli iotop fio ir-keytable curl inxi thonny sqlitebrowser build-essential pkg-config libusb-1.0-0-dev cmake make gcc python3-dev libhidapi-dev python3-virtualenv python3-tk lm-sensors mariadb-server mariadb-client libopenblas-dev linux-perf blueman pi-bluetooth bluez bluez-tools zlib1g-dev libexpat1-dev libxml2-dev libxslt1-dev libzstd-dev libpq-dev libjpeg-dev libpng-dev libfreetype6-dev checkinstall libssl-dev libbz2-dev libffi-dev libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev liblzma-dev libgdbm-dev libdb5.3-dev uuid-dev tk-dev && sudo apt autoremove -y modem* cups* pulse* avahi* triggerhappy* && mkdir -p ~/.local/share && tldr -u''
+    * ''sudo apt update && sudo apt upgrade -y && sudo apt install -y git git-lfs silversearcher-ag wavemon hexedit sudoku tcpdump iptraf mc htop dcfldd nano usbutils ranger tldr ncdu can-utils multitail fd-find lsof minicom cutecom joystick i2c-tools speedtest-cli iotop fio ir-keytable curl inxi stress-ng build-essential pkg-config libusb-1.0-0-dev cmake make gcc python3-dev libhidapi-dev python3-virtualenv python3-tk lm-sensors libopenblas-dev linux-perf pi-bluetooth bluez bluez-tools zlib1g-dev libexpat1-dev libxml2-dev libxslt1-dev libzstd-dev libpq-dev libjpeg-dev libpng-dev libfreetype6-dev checkinstall libssl-dev libbz2-dev libffi-dev libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev liblzma-dev libgdbm-dev libdb5.3-dev uuid-dev tk-dev && sudo apt autoremove -y modem* cups* pulse* avahi* triggerhappy* && mkdir -p ~/.local/share && tldr -u''
 ===== config.txt =====
@@ Line 27: / Line 25: @@
     * ''arm_freq=1300''
     * ''over_voltage=4''
+===== cmdline.txt =====
+  * ''sudo nano /boot/firmware/cmdline.txt''
+  * ''isolcpus=2,3'' hinzufügen
+  * (!) Das darf nur eine Textzeile sein in der Konfig!
 ===== SWAP erhöhen =====
@@ Line 53: / Line 56: @@
   * ''sudo apt autoremove -y modem* cups* pulse* avahi* triggerhappy*''
+===== Passwortlos anmelden =====
+  * Passwort vom User löschen \\ ''sudo passwd -d pi''
+  * ''sudo nano /etc/ssh/sshd_config''
+    * ''PermitEmptyPasswords yes'' einfügen
+  * ''sudo reboot''
+===== WLAN Probleme =====
+Es kommt beim Raspberry Pi Zero 2W öfter vor, dass das WLAN einfach aus geht.
+Scheinbar ein Problem mit dem Powermanagement ...
+  * **Powermanagement abschalten** \\ ''sudo iw dev wlan0 set power_save off''
+  * Permanagement permanent aus
+    * ''sudo nmcli con mod preconfigured wifi.powersave disable'' oder ...
+    * ''sudo crontab -e'' \\ ''@reboot /usr/sbin/iw wlan0 set power_save off > /home/<user>/power_save_log.txt 2>&1''
+  * Check \\ ''iwconfig'' -> Power Management:off
+  * Bring UP \\ ''sudo nmcli device connect wlan0'' \\ Falls das nicht funktioniert, versuchen Sie zunächst ''sudo ip link set wlan0 up''
 ===== Bluetooth =====
@@ Line 199: / Line 218: @@
   * Download von hier : https://www.python.org/downloads/source/
     * ''wget https://www.python.org/ftp/python/3.13.5/Python-3.13.5.tgz''
-    * ''wget https://www.python.org/ftp/python/3.14.0/Python-3.14.0b3.tgz''
+    * ''wget https://www.python.org/ftp/python/3.14.0/Python-3.14.0b4.tgz''
     * Wir nutzen hier 3.14 Beta wegen Fixes im GIL
     * https://dev.to/epam_india_python/python-313-the-gateway-to-high-performance-multithreading-without-gil-1dm7
-  * ''tar zxvf Python-3.13.5.tgz && cd Python-3.13.5'' \\ ''tar zxvf Python-3.14.0b3.tgz && cd Python-3.14.0b3''
+  * ''tar zxvf Python-3.13.5.tgz && tar zxvf Python-3.14.0b4.tgz''
+  * ''cd ~/build/Python-3.13.5'' \\ ''cd ~/build/Python-3.14.0b4''
   * Configuration mit und Ohne GIL
     * ''./configure %%--%%enable-optimizations %%--%%disable-gil''
@@ Line 231: / Line 251: @@
   * ''python -m venv %%--%%copies _envR''
   * ''source _envR/bin/activate''
-  * ''pip install spidev build psutil''
+  * ''python -m pip install %%--%%upgrade pip''
+  * ''pip install spidev build psutil fastapi "uvicorn[standard]" jinja2''
 ==== Rechte für Prozess Prio setzen ====
@@ Line 239: / Line 260: @@
   * ''sudo setcap cap_sys_nice+ep _envR/bin/python3'' \\ Es gibt da noch 2 weitere Varianten ... Die ggf. auch setzen!
   * ''sudo setcap cap_sys_nice+ep _envR/bin/python && sudo setcap cap_sys_nice+ep _envR/bin/python3 && sudo setcap cap_sys_nice+ep _envR/bin/python3.13''
+===== GIL =====
+run with ''PYTHON_GIL=0'' or ''-Xgil=0''
+  * ''PYTHON_GIL=1 python3.13''
+  * ''python3.13 -Xgil=1''
+<code python>
+(_envR) pi@Make-seKwaI:~/test $ python -Xgil=0
+Python 3.13.5 experimental free-threading build (main, Jul  9 2025, 07:28:07) [GCC 12.2.0] on linux
+Type "help", "copyright", "credits" or "license" for more information.
+>>> exit
+</code>