#!/bin/bash

source functions

# Title.
export title="Case Study: copying sparse images"

# History.
remember 'qemu-img create -f qcow2 src.qcow2 100m'
remember 'for i in $(seq 0 2 99); do qemu-io -f qcow2' \
	 '-c "w ${i}m 1m" src.qcow2; done >/dev/null'
remember 'cat ./convert'
remember './convert zeromode=none'

pushd $talkdir/fastzero.d >/dev/null
echo "Based on https://www.redhat.com/archives/libguestfs/2019-August/msg00322.html"
echo
terminal
popd >/dev/null