Phetric is a library that allow you to send PHP application-level metrics to a catcher (such as MetricCatcher) that then makes them available in a fun and interesting way.
Licensed under the MIT licenses.
Copyright (c) 2013 AddThis
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If you are not using an autoloader, you need to include the Sender (which will pull in everything else):
require_once('phetric/Sender.php');Next up, you need to tell Phetric where it should send stats once it has them. When we init the sender, we need to say where we want our metrics, what port we want them sent to, and an optional string that will be prepended to all the stats. This is usefull for identifying the application that is sending the request.
Phetric_Sender::init( 'localhost', '1420', $prepend );Finally, we can send our metrics. Phetric implements Gauges, Counters, Meters, Histograms and Timers. When you create a new metric, you need to create it with a name and for everything other than timers, mark our value.
// Create a metric and mark some data
$gauge = Phetric_Gauge::create('label');
$gauge->mark(42414);Timers count in microseconds the time betweent when they are started and stopped.
// Create a Timer and call it
$blue = Phetric_Timer::create('blue');
$blue->start();
// Do something
// Stop our Timer
$blue->stop();Counters default to 1 if you don't specifify a number when you mark it
// One line example
Phetric_Counter::create('orange')->mark(123);A meter measures the rate of events over time (e.g., “requests per second”). In addition to the mean rate, meters also track 1-, 5-, and 15-minute moving averages.
Phetric_Meter::create('red')->mark(123);A histogram measures the statistical distribution of values. In addition to minimum, maximum, mean, etc., it also measures median, 75th, 90th, 95th, 98th, 99th, and 99.9th percentiles.
$yellow = Phetric_Histogram::create('yellow');
$yellow->mark(13);If you don't want run a local copy of MetricCatcher, this bash function will use netcat to listen on 1420 and output anything that arrives on UDP.
catcher(){
while true;
do
nc -w 1 -l -u 1420;
done;
}
Phetric was written by Aaron Jorbin aaron@jorb.in while at AddThis.
Phetric is available on packagist thanks to https://github.com/ammmze
Please reqport bugs or request new features at the GitHub page for Phetric: http://github.com/addthis/Phetric
When this was written, AddThis was hiring; even if the blame on this line is from long ago, they probably still are. Check out http://www.addthis.com/careers if you're intersted in doing webapps, working with Big Data, and like smart, fun coworkers. AddThis is based just outside of Washington, DC (Tysons Corner) and has offices in New York, Los Angeles, and beyond.