First Commit

usr/bin/pci-latency

@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+# This script is designed to improve the performance and reduce audio latency
+# for sound cards by setting the PCI latency timer to an optimal value of 80
+# cycles. It also resets the default value of the latency timer for other PCI
+# devices, which can help prevent devices with high default latency timers from
+# causing gaps in sound.
+
+# Check if the script is run with root privileges
+if [ "$(id -u)" -ne 0 ]; then
+  echo "Error: This script must be run with root privileges." >&2
+  exit 1
+fi
+
+# Reset the latency timer for all PCI devices
+setpci -v -s '*:*' latency_timer=20
+setpci -v -s '0:0' latency_timer=0
+
+# Set latency timer for all sound cards
+setpci -v -d "*:*:04xx" latency_timer=80