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[documentation] Update benchmarks after latest changes

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Ciprian Dorin Craciun 2019-08-13 10:54:41 +03:00
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@ -557,10 +557,12 @@ Summary
Bottom line (**even on my 6 years old laptop**):
* under normal conditions (16 concurrent connections), you get around 72k requests / second, at about 0.4ms latency for 99% of the requests;
* under stress conditions (512 concurrent connections), you get around 74k requests / second, at about 15ms latency for 99% of the requests;
* **under extreme conditions (2048 concurrent connections), you get around 74k requests / second, at about 500ms latency for 99% of the requests (meanwhile the average is 50ms);**
* (the timeout errors are due to the fact that ``wrk`` is configured to timeout after only 1 second of waiting;)
* under normal conditions (16 concurrent connections), you get around 111k requests / second, at about 0.25ms latency for 99% of the requests;
* under light stress conditions (128 concurrent connections), you get around 118k requests / second, at about 2.5ms latency for 99% of the requests;
* under medium stress conditions (512 concurrent connections), you get around 106k requests / second, at about 10ms latency for 99% of the requests (meanwhile the average is 4.5ms);
* **under high stress conditions (2048 concurrent connections), you get around 100k requests / second, at about 400ms latency for 99% of the requests (meanwhile the average is 45ms);**
* under extreme stress conditions (16384 concurrent connections) (i.e. someone tries to DDOS the server), you get around 53k requests / second, at about 2.8s latency for 99% of the requests (meanwhile the average is 200ms);
* (the timeout errors are due to the fact that ``wrk`` is configured to timeout after only 1 second of waiting while connecting or receiving the full response;)
* (the read errors are due to the fact that the server closes a keep-alive connection after serving 256k requests;)
* **the raw performance is comparable with NGinx_** (only 20% few requests / second for this "synthetic" benchmark); however for a "real" scenario (i.e. thousand of small files accessed in a random pattern) I think they are on-par; (not to mention how simple it is to configure and deploy ``kawipiko`` as compared to NGinx;)
@ -580,58 +582,111 @@ Results values
Please note that the values under *Thread Stats* are reported per thread.
Therefore it is best to look at the first two values, i.e. *Requests/sec*.
* 16 connections / 2 server threads / 4 wrk threads: ::
* 16 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 71935.39
Transfer/sec: 29.02MB
Requests/sec: 111720.73
Transfer/sec: 18.01MB
Running 30s test @ http://127.0.0.1:8080/
4 threads and 16 connections
2 threads and 16 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 220.12us 96.77us 1.98ms 64.61%
Req/Sec 18.08k 234.07 18.71k 82.06%
Latency 139.36us 60.27us 1.88ms 64.91%
Req/Sec 56.14k 713.04 57.60k 91.36%
Latency Distribution
50% 223.00us
75% 295.00us
90% 342.00us
99% 397.00us
2165220 requests in 30.10s, 0.85GB read
50% 143.00us
75% 184.00us
90% 212.00us
99% 261.00us
3362742 requests in 30.10s, 541.98MB read
* 512 connections / 2 server threads / 4 wrk threads: ::
* 128 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 74050.48
Transfer/sec: 29.87MB
Requests/sec: 118811.41
Transfer/sec: 19.15MB
Running 30s test @ http://127.0.0.1:8080/
4 threads and 512 connections
2 threads and 128 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 6.86ms 6.06ms 219.10ms 54.85%
Req/Sec 18.64k 1.62k 36.19k 91.42%
Latency 1.03ms 705.69us 19.53ms 63.54%
Req/Sec 59.71k 1.69k 61.70k 96.67%
Latency Distribution
50% 7.25ms
75% 12.54ms
90% 13.56ms
99% 14.84ms
2225585 requests in 30.05s, 0.88GB read
Socket errors: connect 0, read 89, write 0, timeout 0
50% 0.99ms
75% 1.58ms
90% 1.89ms
99% 2.42ms
3564527 requests in 30.00s, 574.50MB read
* 2048 connections / 2 server threads / 4 wrk threads: ::
* 512 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 74714.23
Transfer/sec: 30.14MB
Requests/sec: 106698.89
Transfer/sec: 17.20MB
Running 30s test @ http://127.0.0.1:8080/
4 threads and 2048 connections
2 threads and 512 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 52.45ms 87.02ms 997.26ms 88.24%
Req/Sec 18.84k 3.18k 35.31k 80.77%
Latency 4.73ms 3.89ms 39.32ms 39.74%
Req/Sec 53.71k 1.73k 69.18k 84.33%
Latency Distribution
50% 23.60ms
75% 34.86ms
90% 162.92ms
99% 435.41ms
2244296 requests in 30.04s, 0.88GB read
Socket errors: connect 0, read 106, write 0, timeout 51
50% 4.96ms
75% 8.63ms
90% 9.19ms
99% 10.30ms
3206540 requests in 30.05s, 516.80MB read
Socket errors: connect 0, read 105, write 0, timeout 0
* 2048 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 100296.65
Transfer/sec: 16.16MB
Running 30s test @ http://127.0.0.1:8080/
2 threads and 2048 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 45.42ms 85.14ms 987.70ms 88.62%
Req/Sec 50.61k 5.59k 70.14k 71.74%
Latency Distribution
50% 16.30ms
75% 28.44ms
90% 147.60ms
99% 417.40ms
3015868 requests in 30.07s, 486.07MB read
Socket errors: connect 0, read 128, write 0, timeout 86
* 4096 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 95628.34
Transfer/sec: 15.41MB
Running 30s test @ http://127.0.0.1:8080/
2 threads and 4096 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 90.50ms 146.08ms 999.65ms 88.49%
Req/Sec 48.27k 6.09k 66.05k 76.34%
Latency Distribution
50% 23.31ms
75% 112.06ms
90% 249.41ms
99% 745.94ms
2871404 requests in 30.03s, 462.79MB read
Socket errors: connect 0, read 27, write 0, timeout 4449
* 16384 connections / 2 server threads / 2 wrk threads: ::
Requests/sec: 53548.52
Transfer/sec: 8.63MB
Running 30s test @ http://127.0.0.1:8080/
2 threads and 16384 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 206.21ms 513.75ms 6.00s 92.56%
Req/Sec 31.37k 5.68k 44.44k 76.13%
Latency Distribution
50% 35.38ms
75% 62.78ms
90% 551.33ms
99% 2.82s
1611294 requests in 30.09s, 259.69MB read
Socket errors: connect 0, read 115, write 0, timeout 2288
Results notes
@ -640,6 +695,8 @@ Results notes
* the machine was my personal laptop: 6 years old with an Intel Core i7 3667U (2 cores with 2 threads each);
* the ``kawipiko-server`` was started with ``--processes 1 --threads 2``; (i.e. 2 threads handling the requests;)
* the ``kawipiko-server`` was started with ``--archive-inmem``; (i.e. the CDB database file was preloaded into memory, thus no disk I/O;)
* the ``kawipiko-server`` was started with ``--security-headers-disable``; (because these headers are not set by default by other HTTP servers;)
* the ``kawipiko-server`` was started with ``--timeout-disable``; (because, due to a known Go issue, using ``net.Conn.SetDeadline`` has an impact of about 20% of the raw performance; thus the reported values above might be about 10%-15% smaller when used with timeouts;)
* the benchmarking tool was wrk_;
* both ``kawipiko-server`` and ``wrk`` tools were run on the same machine;
* both ``kawipiko-server`` and ``wrk`` tools were pinned on different physical cores;
@ -658,7 +715,7 @@ Comparisons
Comparisons with NGinx
......................
* NGinx 512 connections / 2 server workers / 4 wrk thread: ::
* NGinx 512 connections / 2 server workers / 2 wrk thread: ::
Requests/sec: 97910.36
Transfer/sec: 24.56MB
@ -675,7 +732,7 @@ Comparisons with NGinx
99% 9.62ms
2944219 requests in 30.07s, 738.46MB read
* NGinx 2048 connections / 2 server workers / 4 wrk thread: ::
* NGinx 2048 connections / 2 server workers / 2 wrk thread: ::
Requests/sec: 93240.70
Transfer/sec: 23.39MB
@ -699,7 +756,7 @@ Comparisons with NGinx
Comparisons with others
.......................
* darkhttpd_ 512 connections / 1 server process / 4 wrk threads: ::
* darkhttpd_ 512 connections / 1 server process / 2 wrk threads: ::
Requests/sec: 38191.65
Transfer/sec: 8.74MB
@ -778,18 +835,18 @@ Load generators
wrk \
--threads 2 \
--connections 512 \
--timeout 6s \
--timeout 1s \
--duration 30s \
--latency \
http://127.0.0.1:8080/ \
#
* 4096 concurrent connections (handled by 4 threads): ::
* 4096 concurrent connections (handled by 2 threads): ::
wrk \
--threads 4 \
--threads 2 \
--connections 4096 \
--timeout 6s \
--timeout 1s \
--duration 30s \
--latency \
http://127.0.0.1:8080/ \