initial version (alpha)

system_files/usr/etc/systemd/system/disable-power-features.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=Disable Power Management Features
+After=sysinit.target
+
+[Service]
+Type=oneshot
+# Disable PCIe ASPM
+ExecStart=/bin/sh -c 'echo performance > /sys/module/pcie_aspm/parameters/policy || true'
+# Disable USB autosuspend
+ExecStart=/bin/sh -c 'for i in /sys/bus/usb/devices/*/power/autosuspend; do echo -1 > $i 2>/dev/null || true; done'
+# Disable SATA link power management
+ExecStart=/bin/sh -c 'for i in /sys/class/scsi_host/host*/link_power_management_policy; do echo max_performance > $i 2>/dev/null || true; done'
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target