Simple web performance reporter with scheduling and ElasticSearch support. Sweter uses phantomas under the hood
and reports timeToFirstByte, domInteractive and domComplete timings.
npm install -g sweter
$ sweter --help
Usage
sweter <url> [options]
Example
sweter allegro.pl --runs 1067
Options
--runs number of tests to be performed
--timeout timeout for single test run, defaults to 30s
--reporter console (default), elastic, stats or json
--schedule schedule in cron format "* * * * * *"
--daemonize daemonize a process
Elastic options
--elastic-host elastic host
--elastic-index elastic index
By default Sweter outputs data to console
$ sweter google.com
Sat, 04 Apr 2015 10:40:01 GMT
timeToFirstByte: 139
domInteractive: 293
domComplete: 664
$ sweter google.com --reporter stats
{
"date":"2015-07-29T12:54:20.403Z",
"timeToFirstByte": { "median":0.25 },
"domInteractive": { "median":0.7 },
"domComplete": { "median":1.79 }
}
$ sweter google.com --reporter json
{"timeToFirstByte":329,"domInteractive":610,"domComplete":1557}
Sweter can feed Elastic instance
$ sweter google.com \
--reporter elastic \
--elastic-host localhost \
--elastic-index sweter
$ curl https://localhost:9200/sweter/_search
{
"_index": "sweter",
"_type": "object",
"_id": "AUyLZuLrG92aw_Xb4w3P",
"_score": 1,
"_source": {
"timestamp": 1428267917998,
"metrics": {
"timeToFirstByte": 365,
"domInteractive": 764,
"domComplete": 3890
}
}
}
You can write your own reporter if you want. See https://github.com/msn0/sweter-custom-reporter as an example and use it this way
$ sweter google.com --reporter sweter-custom-reporter
So, assuming your node module name is foo then
$ sweter google.com --reporter foo
If foo requires some additional params then pass them this way
$ sweter google.com \
--reporter foo \
--foo-param1 "my param" \
--foo-param2 777
Measure google.com performance every day at 1:00AM and send data to ElasticSearch:
$ sweter google.com \
--runs 1067 \
--reporter elastic \
--elastic-host localhost \
--elastic-index google \
--schedule "0 0 1 * * *" \
--daemonize
Measure google.com performance every four hours and log median to file:
$ sweter google.com \
--runs 600 \
--reporter stats \
--schedule "0 0 */4 * * *" >> report
$ DEBUG=* sweter google.com
Apache-2.0 © Michał Jezierski