Matias Ezequiel Vara Larsen MatiasVara

You require to install docker and KVM before to run these commands:

docker pull torokernel/toro-kernel-dev-debian-10
docker run --privileged --rm -it torokernel/toro-kernel-dev-debian-10
cd examples/MPI
make
../CloudIt.sh MpiReduce

This is the procedure to push an image to a repository that the user has the right to access, e.g., organization.

docker login
docker pull torokernel/toro-kernel-dev-debian-10
docker build --no-cache -t torokernel/toro-kernel-dev-debian-10 .
docker push torokernel/toro-kernel-dev-debian-10

Introduction

This gist aims at building Linux from source-code and deploying it as HVM guest in Xen by using xl.

Building Linux

We use v5.10.17 tag (13b6016). We first build .config by issuing:

make localmodconfig

To enable debug symbols, you can set:

CONFIG_DEBUG_INFO_NONE=y

	for i in 1000 200 120 50 20 10 2;
	do
	paplay --latency-ms=$i 44100_s16_2chan_file.wav &
	PID=$!
	sleep 1
	echo "Latency $i 44100 server:"
	sudo perf stat -p `pidof pipewire-uninstalled` --timeout 5000
	echo "latency $i 44100 client:"
	sudo perf stat -p $PID --timeout 5000
	kill -9 $PID

	import asyncio
	from qemu.qmp import QMPClient
	import argparse
	from subprocess import call
	import os

	async def main():
	parser = argparse.ArgumentParser(description='Pin QEMU vCPUs to physical CPUs')
	parser.add_argument('-s', '--server', type=str, required=True, help='QMP server path or address:port')
	parser.add_argument('cpu', type=int, nargs='+', help='Physical CPUs IDs')

	// share ownership across multiple threads
	// https://doc.rust-lang.org/book/ch16-03-shared-state.html
	//
	use std::thread;
	use std::sync::{Arc,RwLock};

	struct User {
	index: u32,
	}

	use std::time::Duration;
	use async_std::task;
	use std::{thread, time};

	// this is something that will take some time
	// to execute so we execute it as an async function
	// to not block the main thread. This function must not block
	async fn do_sleep(val: u32) {
	task::sleep(Duration::from_secs(3)).await;
	println!("hello, world! {}", val);

	(qemu) info virtio
	/machine/peripheral-anon/device[2]/virtio-backend [virtio-blk]
	/machine/peripheral-anon/device[1]/virtio-backend [virtio-sound]
	/machine/peripheral-anon/device[0]/virtio-backend [virtio-net]
	(qemu) info virtio-queue-element /machine/peripheral-anon/device[1]/virtio-backend 2
	/machine/peripheral-anon/device[1]/virtio-backend:
	device_name: virtio-sound
	index: 12
	desc:
	descs:

	syntax on
	filetype plugin indent on
	command Cleanit %s/\s\+$//e
	" show existing tab with 4 spaces width
	set tabstop=4
	" when indenting with '>', use 4 spaces width
	set shiftwidth=4
	autocmd BufWritePre *.pas %s/\s\+$//e
	" On pressing tab, insert 4 spaces
	set expandtab

	#!/bin/sh
	mount -t proc none /proc
	mount -t sysfs none /sys
	echo -e "\nBoot took $(cut -d' ' -f1 /proc/uptime) seconds\n"
	setsid cttyhack sh
	exec /bin/sh