1.14

Add -L to simulate the application level latency

-L      enable the receive side to sleep in a random integer(one of 1, 2, 3), to simulate application level latency

An example

$ ttcp -r -L
ttcp-r: buflen=1048576, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 127.0.0.1:46482
ttcp-r: worker 107133 start
ttcp-r: worker 107133, force delay 3 s
ttcp-r: worker 107133, force delay 2 s
ttcp-r: worker 107133, force delay 1 s
ttcp-r: worker 107133, stats of 127.0.0.1:46482
        1048576 bytes in 6.01 real seconds = 0.17 MB/sec +++
        1048576 bytes in 0.00 CPU seconds = 935.45 MB/cpu sec
        4 I/O calls, msec/call = 1538.36, calls/sec = 0.67
        0.0user 0.0sys 0:06real 0% 0i+0d 832maxrss 0+222pf 4+0csw
        buffer address 0x7f993ba3c000

Note that the transfer rate is 0.17 MB/sec, is a quite low receive rate

1.13-3

What's new

• re-construct bancs with 3 handler and 2 init, which handler are hold by sub-threads,
• add -d to control the debug info
• add -l to control lazy load, init wait lazy * 10 seconds after handler started
• add a ISO8583 message generator, via -t

How to run?

~]# bancs 
Usage: bancs -e [-options] <host of BANCS> 
       bancs -b [-options] <host of CARD>
       bancs -c [-options] <host of BANCS>
       bancs -t [-options]
Common options:
        -d      enable debug logging
        -l ##   the length of lay time of Init wait Listener (default 8 seconds, which means once Listener init finished and 8 * 10 seconds later, the Init start)
        -p ##   port number to send to or listen at (default 8805/8806 9805)
Common options for -t:
        -m ##   specify the version of the ISO8583 standard, allowed value are 0-9
        -n ##   total number of message to generated
        -k ##   specify message kinds, different kinds means different length, 1 - 1562

1.13-2

What's new(compare with 1.13-1)

• re-construct bancs with 3 handler and 2 init, which handler are hold by sub-threads,
• add -d to control the debug info
• add -l to control lazy load, init wait lazy * 10 seconds after handler started
• add a ISO8583 message generator, via -t

How to run?

After installation the commands hints can help to run, eg:

~]# rpm -qa | grep ttcp
ttcp-1.13-2.x86_64

~]# bancs 
Usage: bancs -e [-options] <host of BANCS> 
       bancs -b [-options] <host of CARD>
       bancs -c [-options] <host of BANCS>
       bancs -t [-options]
Common options:
        -d      enable debug logging
        -l ##   the length of lay time of Init wait Listener (default 8 seconds, which means once Listener init finished and 8 * 10 seconds later, the Init start)
        -p ##   port number to send to or listen at (default 8805/8806 9805)
Common options for -t:
        -m ##   specify the version of the ISO8583 standard, allowed value are 0-9
        -n ##   total number of message to generated
        -k ##   specify message kinds, different kinds means different length, 1 - 1562

1.13

• Add core banking systems simulate projects

1.12

• add ttcp.conf
• add more options

1.1

• Ipv6 Support for chat and echoS
• add ttcp
• add iperf3

1.0

This release contains:

• tcp echo client server package
• tcp chat client server package