Pocket load tester
Scale curl requests, cousin of ab, siege, hey.
Demo
Install
go install github.com/vearutop/plt@latest
$(go env GOPATH)/bin/plt --help
Or (with go1.15 or older)
go get -u github.com/vearutop/plt
$(go env GOPATH)/bin/plt --help
Or download binary from releases.
Usage
usage: plt [<flags>] <command> [<args> ...]
Pocket load tester pushes to the limit
Flags:
--help Show context-sensitive help (also try --help-long and --help-man).
--number=1000 Number of requests to run, 0 is infinite.
--concurrency=50 Number of requests to run concurrently.
--rate-limit=0 Rate limit, in requests per second, 0 disables limit (default).
--duration=1m Max duration of load testing, 0 is infinite.
--slow=1s Min duration of slow response.
--live-ui Show live ui with statistics.
Commands:
help [<command>...]
Show help.
curl [<flags>] [<url>]
Repetitive HTTP transfer
You can "copy as cURL" in your browser and then prepend that with plt to throw 1000 of such requests.
For even better performance you can use plt curl --fast that will employ awesome fasthttp
as transport. This mode lacks detailed breakdown of latencies, but can push request rate to the limit.
If the server is wrapped with Envoy proxy, upstream latency distribution will be collected from the values of X-Envoy-Upstream-Service-Time response header.
In --live-ui mode you can control concurrency and rate limits with arrow keys.
Example
plt --live-ui --duration=20s --rate-limit=60 curl -X GET "https://demo.phperf.ml/profile"plt --live-ui --duration=20s --rate-limit=60 curl -X GET "https://demo.phperf.ml/profile"
Host resolved: 130.61.99.204
Requests per second: 59.96
Total requests: 1201
Time spent: 20.029s
Request latency percentiles:
99%: 101.73ms
95%: 64.88ms
90%: 44.57ms
50%: 28.09ms
Request latency distribution in ms:
[ min max] cnt total% (1201 events)
[ 19.03 19.03] 1 0.08%
[ 22.52 23.76] 25 2.08% ..
[ 23.78 25.26] 111 9.24% .........
[ 25.26 26.58] 200 16.65% ................
[ 26.58 29.61] 449 37.39% .....................................
[ 29.61 39.94] 287 23.90% .......................
[ 40.54 40.54] 1 0.08%
[ 41.00 62.45] 60 5.00% ....
[ 62.77 110.91] 57 4.75% ....
[126.64 260.53] 10 0.83%
Requests with latency more than 1s: 0
Bytes read 2.3MB / 23.5MB/s
Bytes written 105.4KB / 57.6KB/s
DNS latency distribution in ms:
[ min max] cnt total% (16 events)
[0.44 0.44] 1 6.25% ......
[0.49 0.49] 1 6.25% ......
[0.50 0.50] 1 6.25% ......
[0.56 0.56] 1 6.25% ......
[0.61 0.61] 2 12.50% ............
[0.65 0.70] 3 18.75% ..................
[0.77 0.77] 1 6.25% ......
[0.88 0.88] 1 6.25% ......
[1.00 1.03] 3 18.75% ..................
[1.28 1.42] 2 12.50% ............
TLS handshake latency distribution in ms:
[ min max] cnt total% (16 events)
[ 64.95 64.95] 1 6.25% ......
[ 65.14 65.14] 1 6.25% ......
[ 66.98 66.98] 1 6.25% ......
[ 70.94 71.81] 3 18.75% ..................
[ 74.10 76.13] 2 12.50% ............
[ 80.20 82.91] 2 12.50% ............
[ 90.86 90.86] 1 6.25% ......
[127.14 127.72] 2 12.50% ............
[157.99 161.84] 2 12.50% ............
[179.98 179.98] 1 6.25% ......
Time to first resp byte (TTFB) distribution in ms:
[ min max] cnt total% (1201 events)
[ 18.97 18.97] 1 0.08%
[ 22.49 23.77] 27 2.25% ..
[ 23.78 24.96] 81 6.74% ......
[ 24.96 26.56] 236 19.65% ...................
[ 26.57 29.52] 441 36.72% ....................................
[ 29.54 29.54] 1 0.08%
[ 29.56 40.90] 288 23.98% .......................
[ 41.16 62.68] 60 5.00% ....
[ 63.02 110.87] 56 4.66% ....
[126.59 260.27] 10 0.83%
Connection latency distribution in ms:
[ min max] cnt total% (16 events)
[28.04 28.04] 1 6.25% ......
[28.13 28.13] 1 6.25% ......
[29.68 29.68] 1 6.25% ......
[30.01 30.41] 2 12.50% ............
[31.04 31.12] 2 12.50% ............
[32.22 32.44] 2 12.50% ............
[33.37 34.07] 3 18.75% ..................
[36.04 36.04] 1 6.25% ......
[40.09 40.09] 1 6.25% ......
[43.50 45.20] 2 12.50% ............
Responses by status code
[200] 1201
Response samples (first by status code):
[200]
Connection: keep-alive
Content-Length: 1733
Content-Type: application/json; charset=utf-8
Date: Thu, 08 Apr 2021 15:25:54 GMT
Server: nginx/1.14.0 (Ubuntu)
{"recent":[{"addr":{"id":"606f1f90dcdc3"},"edges":3715,"wt":"190.55ms","cpu":"179.03ms","io":"11.52ms","peakMem":"3.52M"},{"addr":{"id":"606f1faf1c5c3"},"edges":3715,"wt":"270.14ms","cpu":"185.62ms","io":"84.52ms","peakMem":"3.52M"},{"addr":{"id":"606f1fc261e9d"},"edges":575,"wt":"3.4s","cpu":"3.39s","io":"9.71ms","peakMem":"28.03M"},{"addr":{"id":"606f1fcd6f694"},"edges":3715,"wt":"153.58ms","cpu":"143.68ms","io":"9.9ms","peakMem":"3.52M"},{"addr":{"id":"606f1feba911d"},"edges":3715,"wt":"202.18ms","cpu":"191.82ms","io":"10.36ms","peakMem":"3.52M"},{"addr":{"id":"606f20052f7c1"},"edges":471,"wt":"679.08ms","cpu":"669.01ms","io":"10.07ms","peakMem":"6.18M"},{"addr":{"id":"606f2009de4cd"},"edges":3715,"wt":"175.34ms","cpu":"163.14ms","io":"12.2ms","peakMem":"3.52M"},{"addr":{"id":"606f2028185dd"},"edges":3715,"wt":"677.03ms","cpu":"320.84ms","io":"356.19ms","peakMem":"3.52M"},{"addr":{"id":"606f2046c16a2"},"edges":3715,"wt":"313.28ms","cpu":"292.38ms","io":"20.9ms","peakMem":"3.52M"},{"...