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Ismael Augusto Noble ismaelnoble

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@mergwyn
mergwyn / zfsbench
Last active February 3, 2026 05:56
ZFS benchmarking using fio
#!/usr/bin/env bash
set -o errexit
echo $(date):Random read
fio --filename=test --sync=1 --rw=randread --bs=4k --numjobs=1 \
--iodepth=4 --group_reporting --name=test --filesize=10G --runtime=300 && rm test
echo $(date):Random write
fio --filename=test --sync=1 --rw=randwrite --bs=4k --numjobs=1 \
@aashish
aashish / insert_image_on_pdf.rb
Last active February 3, 2026 00:42
Insert image on a existing PDF having content with hexapdf gem
require 'hexapdf'
doc = HexaPDF::Document.open("/home/xxxx/Downloads/OoPdfFormExample.pdf")
page = doc.pages[0]
canvas = page.canvas(type: :overlay)
canvas.translate(0, 20) do
canvas.fill_color(0.3, 0.7, 0.7)
canvas.rectangle(50, 0, 80, 80, radius: 80)