Alex Puschinsky alexpusch

## perf-alpine-ecs.md

      
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                alexpusch
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              November 30, 2022 16:51
            
              
                Install perf on Linux Alpine, on Amazon ECS
              
          
    Install perf on Linux Alpine, on Amazon ECS


add to /etc/apk/repositories http://dl-cdn.alpinelinux.org/alpine/edge/testing
apk add --update perf
add to task def privileged:true
add to task def command:[node, --perf-basic-prof, server.js]
do these steps to record kernel level profile - https://developers.redhat.com/blog/2017/09/11/profiling-nodejs-applications-with-linux-performance-tools/


## find_large_files.sh
find /home/ -type f -size +64M -exec ls -lh {} \;

## webrtc_example.js
class ManualSignaling {
  send(msg) {
    console.log(serializeMsg(msg));
  }

  receive(msgString) {
    const msg = deserializeMsg(msgString);

    if (msg.type === 'offer') this.onReceiveOffer(msg);
    if (msg.type === 'answer') this.onReceiveAnswer(msg);

## gist:dd26a740fe570760dd8e8b44342e8359
ulimit -n 40000
echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

## index.html
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="index.js"></script>
</head>

## PureComponent-pitfall-example.js
import React, { Component } from 'react';

class App extends Component {
  constructor(props) {
    super(props);

    this.state = {
      counter: { num: 1 }
    };
  }

## Clean up Azk docker env
# remove exited containers
adocker rm -f $(adocker ps -f status=exited -q | tr '\r\n' ' ')

# remove dangling images
adocker rmi $(adocker images -q -f dangling=true | tr '\r\n' ' ')

# remove dangling volumes
adocker volume ls -qf dangling=true | xargs  adocker volume rm

## azk start
azk status --text | tr -s ' ' | cut -d ' ' -f 2 | sed -n '1!p' | while read -r line ; do
  azk start $line
done

## CocoonJSAudioPlugin.js
/*
 * CocoonJSAudioPlugin
 * Visit http://createjs.com/ for documentation, updates and examples.
 *
 *
 * Copyright (c) 2012 gskinner.com, inc.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
	class ManualSignaling {
	send(msg) {
	console.log(serializeMsg(msg));
	}

	receive(msgString) {
	const msg = deserializeMsg(msgString);

	if (msg.type === 'offer') this.onReceiveOffer(msg);
	if (msg.type === 'answer') this.onReceiveAnswer(msg);
	ulimit -n 40000
	echo fs.inotify.max_user_watches=524288 \| sudo tee -a /etc/sysctl.conf && sudo sysctl -p
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<script src="index.js"></script>
	</head>
	import React, { Component } from 'react';

	class App extends Component {
	constructor(props) {
	super(props);

	this.state = {
	counter: { num: 1 }
	};
	}
	# remove exited containers
	adocker rm -f $(adocker ps -f status=exited -q \| tr '\r\n' ' ')

	# remove dangling images
	adocker rmi $(adocker images -q -f dangling=true \| tr '\r\n' ' ')

	# remove dangling volumes
	adocker volume ls -qf dangling=true \| xargs adocker volume rm
	azk status --text \| tr -s ' ' \| cut -d ' ' -f 2 \| sed -n '1!p' \| while read -r line ; do
	azk start $line
	done
	/*
	* CocoonJSAudioPlugin
	* Visit http://createjs.com/ for documentation, updates and examples.
	*
	*
	* Copyright (c) 2012 gskinner.com, inc.
	*
	* Permission is hereby granted, free of charge, to any person
	* obtaining a copy of this software and associated documentation
	* files (the "Software"), to deal in the Software without