Enable TSX for intel 4th - 9th gen for RPCS3 (Linux):
=======================================================
TSX Entention can help imporve stablilty and preformance of the RPCS3 (PS3 Emulator) if using a intel processor from 4th through 9th gen.
TSX Has been disabled on linux and windows in recent years since it is a massive security volunability (diffacult to expolit, but critical if sucessfull) and is removed from newer 10th, 11th gen processors.
You can renable it through grub, keep in mind that it can be very dangours to the scurity of your computer, so it is overall not recomended.

1.sudo nano /etc/default/grub
2. GRUB_CMDLINE_LINUX="tsx=on tsx_async_abort=off"
3. sudo update-grub
4. sudo reboot

If grub fails to update with changes (which it offten does,) you can manaully input the "tsx=on tsx_async_abort=off" into the /boot/grub/grub.cfg file
Mind you that you will lose these changes evry time update-grub is runed, such as updating the kernel or using grub customizer.

tsx=on - Enable Intel's TSX (Transactional Synchronization Extensions) support.
tsx_async_abort=off - Disable TAA (TSX Async Abort) mitigation.

Update (July 13th, 2021): It was a bad Idea to turn on tsx. It broke the PS3 that was working before (such as Miku F1 & 2) with no other feture showing issues. Such as much more severe audio shuttering with canging many other fetures and casing games to have signifacant glitches. After doing research on TSX, which was created by chipzella in 2013 to help siginicantly imporve multi-threaded performance related to memory. When intel started using it in 2014, Intel and its users noticed major problems with stability with tsx and did not have much performance increase at all. With security vulunbilitys by the end of the 2010s, intel has now completely abandoned tsx as of 2021, wich makes sense, since it has no benifit (performance incerases where very overexsagerated by chipzella) but massive issues to stibility and security for x86 chips using it.
---------------------------------------------------------------------------------------------------
Sources:
https://itsfoss.com/update-grub/
https://ostechnix.com/how-to-make-linux-system-to-run-faster-on-intel-cpus/
https://www.zdnet.com/article/windows-linux-get-options-to-disable-intel-tsx-to-prevent-zombieload-v2-attacks/
https://www.theregister.com/2021/06/29/intel_tsx_disabled/

Date: July 6th, 2021