Denis Denisov denji

## gigabyte-x470-gaming-7-sensors.sh
#!/bin/sh

# The chip info can be found via sensors-detect in lm_sensors
# Driver `to-be-written':
#  * ISA bus, address 0xa40
#    Chip `ITE IT8686E Super IO Sensors' (confidence: 9)

# Driver `it87':
#  * ISA bus, address 0xa60
#    Chip `ITE IT8792E Super IO Sensors' (confidence: 9)

## NUMA node problem.md

      
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                denji
                / NUMA node problem.md
            
            
              Created
              May 7, 2024 01:25
                — forked from zrruziev/NUMA node problem.md
            
              
                Fixing "successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero" problem
              
          
    What is NUMA (Non-Uniformed Memory Access)

Non-Uniform Memory Access (NUMA) is one of the computer memory design methods used in multiprocessor systems, and the time to access the memory varies depending on the relative position between the memory and the processor. In the NUMA architecture, when a processor accesses its local memory, it is faster than when it accesses the remote memory. Remote memory refers to memory that is connected to another processor, and local memory refers to memory that is connected to its own processor.
In other words, it is a technology to increase memory access efficiency while using multiple processors on one motherboard. When a specific processor runs out of memory, it monopolizes the bus by itself, so other processors have to play. , and designate 'access only here', and call it a NUMA node.
1. Check Nodes

lspci | grep -i nvidia
  
01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060 12GB] (rev a1)

  
## bash_strict_mode.md

      
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                denji
                / bash_strict_mode.md
            
            
              Created
              April 14, 2024 17:44
                — forked from mohanpedala/bash_strict_mode.md
            
              
                set -e, -u, -o, -x pipefail explanation
              
          
    Table of Contents


set -e, -u, -x, -o pipefail
set -e
set -x
set -u
set -o pipefail
Setting IFS
Original Reference

set -e, -u, -x, -o pipefail


## git-cheatsheet.md

      
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                denji
                / git-cheatsheet.md
            
            
              Last active
              December 1, 2023 00:50
                — forked from jeremypage/git-cheatsheet.md
            
              
                Git cheatsheet
              
          
    Git cheatsheet

Find all instances of text in all commits

git grep "text to look for" $(git rev-list --all)
List commit messages since given commit


## Major-Binary-Distributions-JDK-Vendors.md

      
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              July 21, 2023 22:35
            
              
                Major Binary Distributions JDK Vendors
              
          
    Pages


Which Version of JDK Should I Use? - whichjdk.com
JDK Distributions - sdkman.io/jdks
https://jdk.dev

Distributions


OpenJDK builds by Oracle (jdk.java.net)
Oracle Java SE Development Kit (JDK)


## readme.md

      
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                denji
                / readme.md
            
            
              Created
              June 4, 2023 20:35
                — forked from ShannonScott/readme.md
            
              
                [Moving efficiently in the CLI] Key-combination reference for movement in the shell. #tags: mac, linux, bash
              
          
    Moving efficiently in the CLI

Copied from: Moving efficiently in the CLI
Github: clementC/my_blog/content/figures/moving_cli.png


## Video Screen Capture with GStreamer.md

      
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                denji
                / Video Screen Capture with GStreamer.md
            
            
              Created
              June 4, 2023 20:34
                — forked from ShannonScott/Video Screen Capture with GStreamer.md
            
              
                [Video Screen Capture with GStreamer] Capture a Linux desktop window video with gsteramer. #tags: gstreamer, linux, xwindows, video
              
          
    Capture a video of a given X Window with gstreamer.
X Window ID

Get the target window ID with the following:

xwininfo

  
## nvenc-install.sh
#!/bin/bash
# =========================================================================
# Source: https://gist.github.com/lucaspar/27f5e108b80524b315be10b2a9049817
# =========================================================================
# This script will compile and install a static FFmpeg build with
#   support for NVENC in Ubuntu. Developed in Ubuntu 23.10,
#   with NVIDIA Drivers v535.129.03 and CUDA v12.2 with a GPU
#   with CUDA capability 8.6 (RTX 3080) (see ccap below).
# It assumes NVIDA drivers are installed and that you have a
#   CUDA-compatible GPU. You can check installed drivers with:

## nvidia.conf
# https://wiki.archlinux.org/title/NVIDIA/Tips_and_tricks
# https://forums.developer.nvidia.com/t/does-modprobe-d-nvidia-conf-nvreg-enablestreammemops-need-to-be-set-for-gpudirect-to-work/79511
# https://github.com/NVIDIA/open-gpu-kernel-modules/blob/main/src/nvidia/interface/nvrm_registry.h
# Requires nvidia.ko >= 510.40.3 loaded with PeerMappingOverride=1. https://docs.nvidia.com/nvshmem/install-guide/index.html
# https://wiki.gentoo.org/wiki/NVIDIA/nvidia-drivers/en
# https://github.com/ventureoo/nvidia-tweaks
# https://nvdam.widen.net/s/k8vrp9xkft/tech-overview-magnum-io-1790750-r5-web
# https://developer.download.nvidia.com/devzone/devcenter/cuda/docs/GPUDirect_Technology_Overview.pdf
# https://docs.nvidia.com/nvshmem/pdf/NVSHMEM-Installation-Guide.pdf

## disable-fb.sh
#!/usr/bin/env bash

# 1. Download and install the QEMU hook helper from here: https://github.com/PassthroughPOST/VFIO-Tools
# 2. Place this file in /etc/libvirt/hooks/qemu.d/NAME OF YOUR VM/prepare/begin/disable-fb.sh
# 3. Make disable-fb.sh executable.

VM_NAME="$1"
echo "libvirt-qemu disable-fb: Disabling efi-framebuffer to prepare to pass GPU to VM $VM_NAME" > /dev/kmsg 2>&1
echo "efi-framebuffer.0" > /sys/bus/platform/devices/efi-framebuffer.0/driver/unbind
	#!/bin/sh

	# The chip info can be found via sensors-detect in lm_sensors
	# Driver `to-be-written':
	# * ISA bus, address 0xa40
	# Chip `ITE IT8686E Super IO Sensors' (confidence: 9)

	# Driver `it87':
	# * ISA bus, address 0xa60
	# Chip `ITE IT8792E Super IO Sensors' (confidence: 9)
	#!/bin/bash
	# =========================================================================
	# Source: https://gist.github.com/lucaspar/27f5e108b80524b315be10b2a9049817
	# =========================================================================
	# This script will compile and install a static FFmpeg build with
	# support for NVENC in Ubuntu. Developed in Ubuntu 23.10,
	# with NVIDIA Drivers v535.129.03 and CUDA v12.2 with a GPU
	# with CUDA capability 8.6 (RTX 3080) (see ccap below).
	# It assumes NVIDA drivers are installed and that you have a
	# CUDA-compatible GPU. You can check installed drivers with:
	# https://wiki.archlinux.org/title/NVIDIA/Tips_and_tricks
	# https://forums.developer.nvidia.com/t/does-modprobe-d-nvidia-conf-nvreg-enablestreammemops-need-to-be-set-for-gpudirect-to-work/79511
	# https://github.com/NVIDIA/open-gpu-kernel-modules/blob/main/src/nvidia/interface/nvrm_registry.h
	# Requires nvidia.ko >= 510.40.3 loaded with PeerMappingOverride=1. https://docs.nvidia.com/nvshmem/install-guide/index.html
	# https://wiki.gentoo.org/wiki/NVIDIA/nvidia-drivers/en
	# https://github.com/ventureoo/nvidia-tweaks
	# https://nvdam.widen.net/s/k8vrp9xkft/tech-overview-magnum-io-1790750-r5-web
	# https://developer.download.nvidia.com/devzone/devcenter/cuda/docs/GPUDirect_Technology_Overview.pdf
	# https://docs.nvidia.com/nvshmem/pdf/NVSHMEM-Installation-Guide.pdf
	#!/usr/bin/env bash

	# 1. Download and install the QEMU hook helper from here: https://github.com/PassthroughPOST/VFIO-Tools
	# 2. Place this file in /etc/libvirt/hooks/qemu.d/NAME OF YOUR VM/prepare/begin/disable-fb.sh
	# 3. Make disable-fb.sh executable.

	VM_NAME="$1"
	echo "libvirt-qemu disable-fb: Disabling efi-framebuffer to prepare to pass GPU to VM $VM_NAME" > /dev/kmsg 2>&1
	echo "efi-framebuffer.0" > /sys/bus/platform/devices/efi-framebuffer.0/driver/unbind