[Make-wifi-fast] iperf enhancements in 2.0.8

[Bob (Robert) McMahon]

Hi Toke,

I just committed -e, --enhancedreports information to the -h help text.     One can grep that output to see if the functionality is supported or not.  You'll need to pick up the latest from sourceforge.

[rmcmahon at rjm-sfast-utf:~/UTF/svn/unittest] $ /projects/hnd_sig_ext16/rmcmahon/Code/iperf/sourceforge/iperf2-code/src/iperf -h
Usage: iperf [-s|-c host] [options]
       iperf [-h|--help] [-v|--version]

Client/Server:
  -b, --bandwidth #[KMG | pps]  bandwidth to send at in bits/sec or packets per second
  -e, --enhancedreports    use enhanced reporting giving more tcp/udp and traffic information
  -f, --format    [kmKM]   format to report: Kbits, Mbits, KBytes, MBytes
...

Bob

-----Original Message-----
From: toke at toke.dk [mailto:toke at toke.dk] 
Sent: Wednesday, October 21, 2015 4:38 AM
To: Bob (Robert) McMahon
Cc: 'make-wifi-fast at lists.bufferbloat.net'
Subject: Re: [Make-wifi-fast] iperf enhancements in 2.0.8

"Bob (Robert) McMahon" <rmcmahon at broadcom.com> writes:

> One can get the millisecond timestamps in the CSV two ways
>
> 	1) use the -e option (for enhanced reporting)

> 	2) use a value of less than 0.5 seconds for -i which enables
> 	enhanced reports without requiring -e (previous iperf verisons
> 	don't support faster than 0.5 sec so it's assumed a user setting
> 	it faster will also want enhanced reports)

Awesome, thanks! I'll add support for this to Flent. Is there a way to detect whether or not iperf supports this extended timestamp format, other than looking at the actual output? E.g. a command line switch that will fail if the support is not there, something or grep for in a help output or the like?

-Toke