David Manouchehri Manouchehri

I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

	#!/usr/bin/env python3
	#
	# Simple Intel x520 EEPROM patcher
	# Modifies the EEPROM to unlock the card for non-intel branded SFP modules.
	#
	# Copyright 2020,2021,2022 Andreas Thienemann <[email protected]>
	#
	# Licensed under the GPLv3
	#
	# Based on research described at https://forums.servethehome.com/index.php?threads/patching-intel-x520-eeprom-to-unlock-all-sfp-transceivers.24634/

	unqualified-search-registries = ['docker.io']
	[[registry]]
	prefix = "docker.io"
	location = "registry-1.docker.io"

	[[registry.mirror]]
	location = "mirror.gcr.io"

	[[registry.mirror]]
	location = "registry.ipv6.docker.com"

	List of pre-defined events (to be used in -e):

	cpu-cycles OR cycles [Hardware event]

	alignment-faults [Software event]
	bpf-output [Software event]
	cgroup-switches [Software event]
	context-switches OR cs [Software event]
	cpu-clock [Software event]
	cpu-migrations OR migrations [Software event]

	[dave@dave-mac ~]$ sudo perf list

	List of pre-defined events (to be used in -e):

	alignment-faults [Software event]
	bpf-output [Software event]
	cgroup-switches [Software event]
	context-switches OR cs [Software event]
	cpu-clock [Software event]
	cpu-migrations OR migrations [Software event]

	[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x413fd0c1]
	[ 0.000000] Linux version 5.15.0-1013-gcp (buildd@bos02-arm64-029) (gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #18-Ubuntu SMP Sun Jul 3 05:04:03 UTC 2022 (Ubuntu 5.15.0-1013.18-gcp 5.15.39)
	[ 0.000000] efi: EFI v2.70 by EDK II
	[ 0.000000] efi: SMBIOS=0xffff0000 TPMFinalLog=0x4385e0000 ACPI 2.0=0x4385d0018 MEMATTR=0x43a366418 MOKvar=0x43a43a000 TPMEventLog=0x43815b018 RNG=0x43bfdee18 MEMRESERVE=0x4384fca18
	[ 0.000000] efi: seeding entropy pool
	[ 0.000000] random: fast init done
	[ 0.000000] secureboot: Secure boot disabled
	[ 0.000000] ACPI: Early table checksum verification disabled
	[ 0.000000] ACPI: RSDP 0x00000004385D0018 000024 (v02 Google)
	[ 0.000000] ACPI: XSDT 0x00000004385DFE98 000074 (v01 Google GOOGFACP 00000001 01000013)

	#! /usr/bin/env bash
	#
	# Run parallel commands and fail if any of them fails.
	#

	set -eu

	pids=()

	for x in 1 2 3; do