Printing one data file with throughput multiple flows

[natale-p]

Actually, if I have 3 flows and want to plot their throughput, I need to run 3 times captcp, using each time a different -f parameter .

What about adding a range capability for the -f parameter ? The output .dat file will be something like

Time Throughput flow 1 Throughput flow 2
0.0 0.0 0.0
1.0 100.0 85.0
2.0 120.0 95.0

.....

Thank you

[hgn]

-f

Mhh, ok. But this needs some major rewriting of the code. Any patches?

[natale-p]

diff --git i/captcp.py w/captcp.py
index a63f71a..0644442 100755
--- i/captcp.py
+++ w/captcp.py
@@ -2699,10 +2699,14 @@ class ThroughputMod(Mod):

 def initialize(self):
     self.parse_local_options()

•    self.end_time = self.start_time = False
  

•    self.start_time = {}
  

•    self.end_time = {}
  

•    self.last_sample = {}
  

•    self.data = {}
  

•    self.output_row = {}
   self.total_data_len = 0
   self.time_clipping_delta = 0.0
  

•    self.first_packet_seen = None
  

•    self.first_packet_seen = []
   if not self.opts.stdio:
       # no need to check and generate Gnuplot
       # environment
  

  @@ -2791,11 +2795,29 @@ class ThroughputMod(Mod):
  (self.opts.unit, self.opts.samplelength))
  self.logger.warning("Use --per-second (-p) option if you want per-second average")

• def output_data(self, time, amount):

•    if self.opts.stdio:
  

•        sys.stdout.write("%5.1f  %10.1f\n" % (time, amount))
  

•    else:
  

•        self.throughput_file.write("%.5f %.8f\n" % (time, amount))
  

• def output_data(self, connection_id, time, amount):

•    if time not in self.output_row:
  

•        self.output_row[time] = {}
  

•    self.output_row[time][connection_id] = amount
  

•    if len(self.output_row[time]) == len(self.ids):
  

•        fmt = '{} '
  

•        for i in range(0, len(self.ids)):
  

•            fmt += '{} '
  

•        fmt += '\n'
  

•        values = (str(time),)
  

•        for c_id in range(1, len(self.ids)+1):
  

•            values = values + (str(self.output_row[time][c_id]),)
  

•        if self.opts.stdio:
  

•            sys.stdout.write(fmt.format(*values))
  

•        else:
  

•            self.throughput_file.write(fmt.format(*values))
  

•        del self.output_row[time]
  

Initial patch.

Problem: it breaks backward compatibility, and not works without -f .
Suggestions?

[hgn]

Mhh, I will think about this! Thank you