Documentation > Administration > Going to Production > Stream Testee

Stream Testee

Crossbar.io includes a testee (pseudo) transport, which just echo's back anything at a stream level (TCP or Unix domain socket).

This feature is for debugging, development and benchmarking purposes.

Here is an example configuration:

{
   "workers": [
      {
         "type": "router",
         "transports": [
            {
               "type": "stream.testee",
               "endpoint": {
                  "type": "tcp",
                  "port": 9000,
                  "backlog": 1024
               }
            }
         ]
      }
   ]
}

Now you can connect e.g. via telnet to the host on port 9000.

Configuration

option description
id ID of the transport within the running node (default: transport<N> where N is numbered automatically starting from 1)
type Type of transport - must be "stream.testee".
endpoint Listening endpoint for transport. See Transport Endpoints for configuration
debug Turn on debug logging for this transport instance (default: false).
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Results

These tests were performed on 2 boxes running FreeBSD 10.1 / x86-64:

[oberstet@brummer1 ~]$ sysctl -a | egrep -i 'hw.model|hw.ncpu|hw.physmem'
hw.model: Intel(R) Xeon(R) CPU E3-1240 v3 @ 3.40GHz
hw.ncpu: 8
hw.physmem: 34276188160

The boxes are networked via 10GbE.

Netperf

The following is a dump of performance results using netperf. Here are some numbers to compare the results with.

TCP_RR

Over 10GbE to netserver:

[oberstet@brummer2 ~]$ netperf -H 10.0.0.10 -t TCP_RR -l 60
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.0.0.10 () port 0 AF_INET : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.01    26851.95
32768  65536

Over 10GbE to Crossbar.io / PyPy 2.4:

[oberstet@brummer2 ~]$ netperf -N -H 10.0.0.10 -t TCP_RR -l 60 -- -P 9000
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 10.0.0.10 () port 9000 AF_INET : no control : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.03    20524.63
0      0

Over 10GbE to Crossbar.io / CPython 2.7.9:

[oberstet@brummer2 ~]$ netperf -N -H 10.0.0.10 -t TCP_RR -l 60 -- -P 9000
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 10.0.0.10 () port 9000 AF_INET : no control : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.01    13342.51
0      0

Over loopback to netserver:

[oberstet@brummer1 ~]$ netperf -H 127.0.0.1 -t TCP_RR -l 60
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.1 () port 0 AF_INET : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.02    114822.69
32768  65536

Over loopback to Crossbar.io / PyPy 2.4:

[oberstet@brummer1 ~]$ netperf -N -H 127.0.0.1 -t TCP_RR -l 60 -- -P 9000
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 127.0.0.1 () port 9000 AF_IN                                                                               ET : no control : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.02    63572.31
0      0

Over loopback to Crossbar.io / CPython 2.7.9:

[oberstet@brummer1 ~]$ netperf -N -H 127.0.0.1 -t TCP_RR -l 60 -- -P 9000
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 127.0.0.1 () port 9000 AF_INET :                                                                            no control : histogram : interval : dirty data : demo : first burst 0
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.00    25266.67
0      0

TCP_STREAM

Over 10GbE to netserver:

[oberstet@brummer2 ~]$ netperf -H 10.0.0.10 -t TCP_STREAM -l 60
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.0.0.10 () port 0 AF_INET : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 65536  32768  32768    60.00    9918.16

Over 10GbE to Crossbar.io / PyPy 2.4:

[oberstet@brummer2 ~]$ netperf -N -H 10.0.0.10 -t TCP_STREAM -l 60 -- -P 9000
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 10.0.0.10 () port 9000 AF_INET : no control : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

     0  32768  32768    60.00    1202.82

Over 10GbE to Crossbar.io / CPython 2.7.9:

[oberstet@brummer2 ~]$ netperf -N -H 10.0.0.10 -t TCP_STREAM -l 60 -- -P 9000
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 10.0.0.10 () port 9000 AF_INET : no control : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

     0  32768  32768    60.02    1368.46

Over loopback to netserver:

[oberstet@brummer1 ~]$ netperf -H 127.0.0.1 -t TCP_STREAM -l 60
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.1 () port 0 AF_INET : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 65536  32768  32768    60.01    46675.42

Over loopback to Crossbar.io / PyPy 2.4:

[oberstet@brummer1 ~]$ netperf -N -H 127.0.0.1 -t TCP_STREAM -l 10 -- -P 9000
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 127.0.0.1 () port 9000                                                                                    AF_INET : no control : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

     0  32768  32768    10.04    11420.84

Over loopback to Crossbar.io / CPython 2.7.9:

[oberstet@brummer1 ~]$ netperf -N -H 127.0.0.1 -t TCP_STREAM -l 10 -- -P 9000
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 9000 AF_INET to 127.0.0.1 () port 9000 AF_INET : no control : histogram : interval : dirty data : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

     0  32768  32768    10.02    10335.18

TCP_CRR

Over 10GbE to netserver:

[oberstet@brummer2 ~]$ netperf -H 10.0.0.10 -t TCP_CRR -l 60
TCP Connect/Request/Response TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.0.0.10 () port 0 AF_INET : histogram : interval : dirty data : demo
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.02    13206.10
32768  65536

Over loopback to netserver:

[oberstet@brummer1 ~]$ netperf -H 127.0.0.1 -t TCP_CRR -l 60
TCP Connect/Request/Response TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.1 () port 0 AF_INET : histogram : interval : dirty data : demo
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

32768  65536  1        1       60.04    45586.91
32768  65536

Accept Rate

These tests were performed on a notebook running Windows 7.

oberstet@THINKPAD-T410S /c/Temp
$ ./EchoServerTest.exe -server 127.0.0.1 -port 9000 -connections 60000 -connectionBatchSize 1000 -connectionBatchDelay 600 -hold -pause
Creating 60000 connections
1000 connections created
2000 connections created
...
59000 connections created
60000 connections created
All connections in progress
All connections complete in 47545ms
60000 established. 0 failed.
Press return to close connections

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