talawahtech’s gists

talawahtech / tcp_httpd_demo.cc

Created February 23, 2022 03:40

Simple Seastar TCP server that return a hard-coded HTTP response

	#include <seastar/core/reactor.hh>
	#include <seastar/core/app-template.hh>
	#include <seastar/core/temporary_buffer.hh>
	#include <seastar/core/distributed.hh>

	using namespace seastar;

	static std::string str_json{"HTTP/1.1 200 OK\r\nServer: httpserver\r\nDate: Thu, 01 Jan 1970 00:00:00 GMT\r\nContent-Type: application/json\r\nContent-Length: 27\r\n\r\n{\"message\":\"Hello, World!\"}"};

	class tcp_server {

talawahtech / extreme-benchmark-environment.yaml

Last active March 12, 2025 14:25

CloudFormation template for "Extreme HTTP Performance Tuning" post: https://talawah.io/blog/extreme-http-performance-tuning-one-point-two-million/

	AWSTemplateFormatVersion: '2010-09-09'

	Description: Extreme Performance Tuning Benchmark Environment


	Parameters:
	AmiId:
	Type: AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>
	Default: '/aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-gp2'

talawahtech / txq.bt

Last active May 22, 2021 02:33

txq.bt - monitor the length of an AWS ENA device's transmit queue

	#include "txq.h"

	kprobe:ena_com_prepare_tx
	{
	// grab/cast the transmit queue param
	$io_sq = (struct ena_com_io_sq *) arg0;

	// logic copied from from ena_com_free_q_entries
	$queuelen = (uint16) $io_sq->tail - (uint16) $io_sq->next_to_comp;

talawahtech / libreactor-palette.map

Last active August 16, 2022 06:19

libreactor-palette.map - a custom FlameGraph palette.map that I use with my libreactor tests

	->rgb(185,185,185)
	SYSC_newfstat_[k]->rgb(228,177,17)
	SYSC_recvfrom_[k]->rgb(224,162,23)
	SYSC_sendto_[k]->rgb(224,162,23)
	SYSC_statx_[k]->rgb(250,26,51)
	[libreactor]->rgb(135,195,250)
	___slab_alloc_[k]->rgb(216,170,9)
	__acct_update_integrals_[k]->rgb(250,144,31)
	__accumulate_pelt_segments_[k]->rgb(216,107,43)
	__alloc_pages_nodemask_[k]->rgb(208,12,16)

talawahtech / netmonitor.sh

Last active February 21, 2025 18:41

netmonitor.sh - A simple bash script to calculate throughput and pps

	#!/bin/bash

	# Bash script to calculate throughput and packets/sec
	# Based on code from https://discuss.aerospike.com/t/benchmarking-throughput-and-packet-count-with-iperf3/2791

	if [ -z "$1" ]; then
	echo
	echo usage: $0 [network-interface]
	echo
	echo defaulting to eth0

talawahtech / docker-hub-api.sh

Last active January 16, 2022 14:15

Docker Hub - Create repo with automated build for TechEmpower benchmark

	#!/bin/sh
	export UNAME=""
	export UPASS=""
	export DOCKERHUB_NAMESPACE="techempower"
	export FRAMEWORK_LANG="C"
	export FRAMEWORK="libreactor"
	export GITHUB_ORG="TechEmpower"
	export GITHUB_REPO="FrameworkBenchmarks"

	#Authenticate

talawahtech / under-maintenance.yaml

Last active January 18, 2019 22:01

CloudFormation snippet for quickly putting a site behind a Load Balancer "under maintenance"

	Parameters:
	UnderMaintenance:
	Description: 'Returns a static "under maintenance" page and a 503 response code. ONLY WORKS WITH ALB'
	Type: String
	Default: 'NO'
	AllowedValues: ['YES', 'NO']

	Conditions:
	UnderMaintenance: !Equals [!Ref 'UnderMaintenance', 'YES']

talawahtech / promisified-https-request.js

Created April 24, 2018 17:03

Example Lambda function that wraps https.request in a promise so it can be used with async/await

	const https = require('https');

	exports.handler = async (event) => {
	const response = await asyncHttpRequest({ hostname: 'httpbin.org', path: '/ip' });
	return JSON.parse(response);
	};

	function asyncHttpRequest(params, postData) {
	return new Promise(function(resolve, reject) {
	const req = https.request(params, function(res) {

talawahtech / password-generator.yaml

Last active February 5, 2019 16:15

Generates a random password using SecretsManager.getRandomPassword() and stores it in the Parameter Store

	AWSTemplateFormatVersion: '2010-09-09'

	Description: 'Generates a random password and stores it in the SSM Parameter Store'

	Resources:
	PasswordGeneratorRole:
	Type: 'AWS::IAM::Role'
	Properties:
	Path: '/'
	ManagedPolicyArns: ['arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole']

talawahtech / keybase.md

Created March 22, 2018 17:56

I hereby claim:

To claim this, I am signing this object:

Marc Richards talawahtech