Boot a specific installed Ubuntu kernel using grub-reboot and grub-set-default.
This allows you to pick what kernel you want to boot on next reboot, or set the default, without having to know much about how grub works or editing config files.
Usage: boot-kernel [options] [kernel]
call grub-reboot or grub-set-default to boot the provided kernel.
| From 6cf513dc8c5ab758072d894f10a58fbb4a146bd6 Mon Sep 17 00:00:00 2001 | |
| From: Jon Nettleton <jon@solid-run.com> | |
| Date: Wed, 6 Oct 2021 09:16:35 -0400 | |
| Subject: [PATCH] Aarch64: Make memcpy more compatible with device memory | |
| For normal non-cacheable memory ACE supports 4x128 bit r/w WRAP | |
| transfers or 1x128 bit r/w INCR transfers. By re-ordering the | |
| stp's in memcpy / memmove we can accomodate this better without | |
| impacting the existing code. |
| # Kernel sysctl configuration file for Linux | |
| # | |
| # Version 1.14 - 2019-04-05 | |
| # Michiel Klaver - IT Professional | |
| # http://klaver.it/linux/ for the latest version - http://klaver.it/bsd/ for a BSD variant | |
| # | |
| # This file should be saved as /etc/sysctl.conf and can be activated using the command: | |
| # sysctl -e -p /etc/sysctl.conf | |
| # | |
| # For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and sysctl.conf(5) for more details. |
This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).
Matrix multiplication is a mathematical operation that defines the product of
| // concurrent-queue.h | |
| #ifndef CONCURRENT_QUEUE_H_ | |
| #define CONCURRENT_QUEUE_H_ | |
| #include <queue> | |
| #include <thread> | |
| #include <mutex> | |
| #include <condition_variable> | |
| template <typename T> |
| Go 1.10.3 vs 1.11beta3 | |
| Linux Firefly3399 4.4.138 #3 SMP Sat Jul 21 18:29:19 EST 2018 aarch64 GNU/Linux | |
| go test crypto/tls -bench BenchmarkThroughput | |
| benchmark old ns/op new ns/op delta | |
| BenchmarkThroughput/MaxPacket/1MB-6 215113025 30982856 -85.60% | |
| BenchmarkThroughput/MaxPacket/2MB-6 373540806 47685945 -87.23% | |
| BenchmarkThroughput/MaxPacket/4MB-6 662471229 64692820 -90.23% | |
| BenchmarkThroughput/MaxPacket/8MB-6 1297366168 121892691 -90.60% |
| # set the arch [IM] | |
| sudo dpkg --add-architecture i386 | |
| # add the repos [IM] | |
| sudo add-apt-repository -y ppa:wine/wine-builds | |
| sudo add-apt-repository -y ppa:ethanak/milena | |
| # update the deps [IM] | |
| sudo apt-get update | |
| sudo apt-get -y upgrade |
| #!/bin/bash | |
| # A simple script to build 64-bit and 32-bit Mesa and vkpipeline-db | |
| # on amd64 Debian testing, Debian unstable, and possibly some Ubuntu | |
| # with some tweaks. | |
| # | |
| # A situation with LLVM on Ubuntu was (is?) not perfect, so you are on your own. | |
| # | |
| # If you do not want to or can not use it, modify the script to install and use | |
| # other LLVM and update LLVMVERSION variable below. |
Sometimes you need to use API Keys to use things like the Speech API. And then you Google a bit and follow all the instructions. But the Chromium Project's API Keys page does a not-so-great of explaining how to do this, so I will.
Google API Keys are missing. Some functionality of Chromium will be disabled. Learn More.
| #!/bin/bash -x | |
| # make_arm64_rpi_kernel_debs.sh | |
| # Builds arm64 debian packages from the CURRENT rpi firmware repository kernel which is installed by: | |
| # sudo rpi-update | |
| # This runs on an arm64 host with arm64 compilation tools... | |
| # or with some sort of cross-compilation setup. | |
| # Debs are put in $workdir/build | |
| # | |
| # This will NOT work in Raspbian unless you have an arm64 compilation | |
| # environment setup. Appears to work on |