The SOUND_CARD_PCI_ID can be obtained like so: # setpci -v -s $SOUND_CARD_PCI_ID latency_timer= ff You may also want to maximize the PCI latency timer of the PCI sound card and raise the latency timer of all other PCI peripherals (default is 64). etc/sysctl.d/90-max_user_nf fs.inotify.max_user_watches = 600000

This again can be done on the fly with sysctl fs.inotify.max_user_watches=600000 or in a dedicated configuration file: 600000, that inotify keeps track of for your user, can help with applications, that require many file handles (such as DAWs). Increasing the maximum watches on files (defaults to 524288) to e.g.This can be done on the fly with sysctl vm.swappiness=10 (see sysctl(8)) or setup permanently, using a configuration file (see sysctl.d(5)) such as: 10 will make the system wait much longer before trying to swap to disk (see wikipedia:Paging#Swappiness). Reducing swappiness (aka swap frequency, set to 60 by default) to e.g.# echo 2048 > /proc/sys/dev/hpet/max-user-freq # echo 2048 > /sys/class/rtc/rtc0/max_user_freq Increasing the highest requested RTC interrupt frequency (default is 64 Hz) by running the following at boot:.Add noatime to fstab (see Improving performance#Mount options).Using the threadirqs kernel parameter (consult for reference) - enforced by default by the realtime kernel patchset.by installing realtime-privileges and adding your user to the realtime group). Setting the CPU frequency scaling governor to performance.You may want to consider the following often seen system optimizations: Only if you require a setup with lower latency and greater stability, start considering optimizations!

Try a standard setup with the vanilla Arch Linux kernel first.

While for some systems and setups a higher level of optimization is necessary, for most users this will not be the case. Note: The quality of information on best practices and system configuration vary a great deal (and are outdated or sometimes even contradictory in many locations).

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