Andre LaBranche dreness

A Shoutcast process (called sc_serv25, with PID 10213) is using way more CPU than expected for the workload - specifically, 100% of a CPU core. Let's investigate.

$ sudo strace -p 10213 -o ~/sc_serv25_strace.txt -f -t -tt -T
(control-c after a few seconds)

Looking at sc_serv25_strace.txt for weirdness, we notice thread 10221 is very hot. Here's an excerpt:

$ grep 10221 ~/sc_serv25_strace.txt
...
10221 1499065013.244010 poll([{fd=14, events=POLLIN}, {fd=75, events=POLLIN}], 2, 0) = 0 (Timeout) <0.000009>

	# This is needed because SimpleHTTPServer in the standard python distribution isn't good enough for my use case of
	# serving large mp4 files. Pretty much every request fails with a broken pipe.

	# Start with the 'babun' package to provide the cli environment, based on cygwin. Python is included.
	# http://babun.github.io

	# Install virtualenv
	pip install virtualenv

	# Create and activate virtualenv

	#!/bin/bash

	function sep { printf -- '-%.0s' {1..80}; echo ''; }

	sep ; echo "Identities" ; sep
	security find-identity

	echo ''

	sep ; echo "Keys" ; sep

	1) If applicable, list available formats for this asset.
	youtube-dl -F <url>

	... then get URL to m3u8 for selected format
	youtube-dl -f <format name> -g <url>

	2) Download all the segments in the m3u8. Now you have a bag of transport stream segments.
	The file names are probably increasing but not necessarily sequentially.
	You can do the download with youtube-dl (which automatically re-assembles the results),
	but it doesn't support parallel operation. You might find that parallelizing this download

	#!/usr/bin/python

	from __future__ import print_function
	from datetime import datetime

	'''
	Display the account records gathered by the sa(8) facility.
	from /usr/include/sys/acct.h
	or on macOS, /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/sys/acct.h

	#!python

	# To use this, you need Python 3 and also the pyobjc module.
	# pip install pyobjc

	import objc
	from Foundation import NSBundle, NSString
	import datetime
	import time
	import sys

	#!/usr/bin/python

	"""Usage: symfind BINARY_PATH SEARCH_STR

	symfind automates the usage of otool and nm to attempt to find out which
	binary a symbol is defined in that's used within BINARY_PATH's code.
	"""

	import subprocess, os.path, sys, getopt

	#!/usr/sbin/dtrace -s

	#pragma D option quiet
	#pragma D option switchrate=10hz

	/* pass the filename to watch for as the only cli argument */

	dtrace:::BEGIN
	{
	/* double dollar sign to stringify cli arg */

	#!/usr/bin/env python
	# -- coding: UTF-8 --
	"""
	Work in progress. For now, just show URLs to m3u8 files of match videos.
	To use, first do:
	pip install -r requirements.txt

	TODO: pre-season VODs were split out by game; season1 VODs contain all games in a match
	"""