Month: March 2025

Posted on by — Leave a comment

benchmark: disable CPU & RAM mitigations to speed up Linux gaming

i ran Monster Hunter Wilds benchmark 4k ultra with no frame gen, via steam store on Linux, on Xorg display server with “teafree” enabled, running the open-source amdgpu kernel driver:

68.51 FPS average | 23243 score ::: regular Linux Kernel
71.87 FPS average | 24526 score ::: Kernel boot options: mitigations=off init_on_alloc=0 init_on_free=0 randomize_kstack_offset=0

7900XTX GPU
3800X CPU

Linux 6.14.0 built using:
clang +full LTO, debian defaut kernel config as make oldconfig with some things already tweaked at build time such as changing timer frequency to 1000Hz, disabling non-essential debug stuf the kernel documentation says has “minimal runtime overhead”, etc, intel components, etc removed due to running on AMD.

mitigations=off,init_on_alloc=0,init_on_free=0, etc are optionally disabled at runtime as a benchmark (mitigations is something that is _always_ on, by default on every linux distro and default kernel. init_on_alloc/free are enabled by default varying by distro, some have either one or the other enabled, or both on)

this is a system-wide speed improvement, and reduces latency, speeds up the CPU and also the memory operations by sacrificing security operations. register zeroing is also a newer kernel CPU security option we can choose to enable/disable (security/speed)

it will be nice to test this with ntsync now it is mainlined into the kernel! ^-^: ttps://www.kernel.org/doc/html/v6.14-rc7/userspace-api/ntsync.html

besides other kernel memory & cpu options, another potential kernel-level improvement we can get is from AutoFDO when building the kernel using clang (though, i probably need to upgrade from my Zen 2 gen CPU for a start):
https://www.kernel.org/doc/html/next/dev-tools/autofdo.html

“AutoFDO (Auto-Feedback-Directed Optimization) is a type of profile-guided optimization (PGO) used to enhance the performance of binary executables. It gathers information about the frequency of execution of various code paths within a binary using hardware sampling. This data is then used to guide the compiler’s optimization decisions, resulting in a more efficient binary. AutoFDO is a powerful optimization technique, and data indicates that it can significantly improve kernel performance. It’s especially beneficial for workloads affected by front-end stalls.

For AutoFDO builds, unlike non-FDO builds, the user must supply a profile. Acquiring an AutoFDO profile can be done in several ways. AutoFDO profiles are created by converting hardware sampling using the “perf” tool. It is crucial that the workload used to create these perf files is representative; they must exhibit runtime characteristics similar to the workloads that are intended to be optimized. Failure to do so will result in the compiler optimizing for the wrong objective. […]

Posted on by — Leave a comment

Studying Correlation Between ESP (Psychic Phenomena) & Geomagnetic Activity (& Solar Activity)


Study 1: “NEW INSIGHTS INTO THE LINKS BETWEEN ESP AND GEOMAGNETIC ACTIVITY [in turn linked to Solar activity]”
The Parapsychological Association & The Society for Psychical Research Convention 2008

some summary:

“Local geomagnetic field-strength measurements taken at 1-second intervals during 99 trials, and at 5-second intervals during 244 trials, were converted by fast Fourier transform into power within five frequency bands.

Two patterns were observed: ESP was found to succeed only during periods of enhanced pulsation activity within the 0.2-0.5 Hz band, but ESP effect was absent during the most disturbed periods of activity in the 0.025-0.1 Hz band. “

https://archives.parapsych.org/bitstream/123456789/3/1/2008_PA_Convention_Proceedings.pdf#page=216

Rupert Sheldrake suggests a morphic field, but it seems that electromagnetic, geomagnetic, and other fields may be linked too, to the degree that more disturbed planetary field activity may cause “noise” and interrupt some forms of ESP (which then may become enhanced once the disturbed field has settled… i am trying to find the study which touches upon this finding of increased ESP _after_ the disturbed field has settled)

ExtraSensory Perception (ESP, Psi, Psychic Ability) is very real. It should be taken seriously.
If like myself, you have also personally experienced ESP such as precognitive dreams or remote sensing/clairvoyance, then it is no longer a belief, but we know it is real, we do not “believe” in it. it becomes knowledge. Thus there MUST be a mechanism, field, or function it is leveraging, and we should study to find this, and potentially leverage and exploit it so we can work with ESP more systematically and effectively.

Some of the research i have came across over the years range from the well-known USA CIA remote viewing studies, UK MoD remote viewing (appendix G, anyone?), Magick & Witchcraft, Findings that Rupert Sheldrake explores, etc… but what excited me the most was when i found studies which explore correlation between ESP and Geomagnetic and Solar activity. I’m trying to find the exact study i found many years ago, but above is one such study i just found, i should add and collate more as i find them.

If i recall correctly, what i learnt from the study i initially read years ago is that some forms of ESP are more frequent and enhanced During more active Geomagnetic periods (geomagnetic storms etc), but also that some ESP can actually be Dampened during the most active (geomagnetic storm) periods, followed by increased ESP when the highly unsettled field settles afterwards.

Also, the different types of ESP may be affected differently. Precognition (future time event sensing) for example, may be affected differently to clairvoyance/remote-sensing (current time remote event sensing), and the geomagnetic field may affect them differently.

I will also post briefly after this regarding some notable ESP experiences i’ve had myself, and how they may relate also to the Morphic field that Rupert Sheldrake suggests.