/* graph RTT samples in milliseconds */
static void
graph_rtt_sample (tcptrace_context_t *context,
tcb * ptcb,
segment * pseg,
unsigned long etime_rtt)
{
char title[210];
tcptrace_runtime_options_t *options = context->options;
/* if the FILE is NULL, open file */
if (ptcb->rtt_plotter == NO_PLOTTER) {
char *name_from, *name_to;
if (ptcb == &ptcb->ptp->a2b) {
name_from = ptcb->ptp->a_endpoint;
name_to = ptcb->ptp->b_endpoint;
} else {
name_from = ptcb->ptp->b_endpoint;
name_to = ptcb->ptp->a_endpoint;
}
snprintf (title, sizeof (title), "%s_==>_%s (rtt samples)",
name_from, name_to);
ptcb->rtt_plotter =
new_plotter(context, ptcb, NULL, title, "time", "rtt (ms)",
RTT_GRAPH_FILE_EXTENSION);
plotter_perm_color (ptcb->rtt_plotter, "red");
if (options->graph_time_zero) {
/* set graph zero points */
plotter_nothing (ptcb->rtt_plotter, context->current_time);
}
ptcb->rtt_line = new_line (ptcb->rtt_plotter, "rtt", "red");
}
if (etime_rtt <= 1)
return;
extend_line(ptcb->rtt_line, context->current_time, (int) (etime_rtt / 1000));
}
static int
traffic_init_files(void)
{
static int created = 0;
if (created)
return;
created = 1;
/* open the output files */
if (doplot_packets)
plotter_packets =
new_plotter(NULL,
PLOTTER_PACKETS_FILENAME,
"packets per second over time by port",
"time","packets/second",
NULL);
if (doplot_bytes)
plotter_bytes =
new_plotter(NULL,
PLOTTER_BYTES_FILENAME,
"bytes per second over time by port",
"time","bytes/second",
NULL);
if (doplot_active)
plotter_active =
new_plotter(NULL,
PLOTTER_ACTIVE_FILENAME,
"active connections over time by port",
"time","active connections",
NULL);
if (doplot_idle)
plotter_idle =
new_plotter(NULL,
PLOTTER_IDLE_FILENAME,
"idle connections over time by port",
"time","idle connections",
NULL);
if (doplot_open)
plotter_open =
new_plotter(NULL,
PLOTTER_OPEN_FILENAME,
"open connections over time by port",
"time","open connections",
NULL);
if (doplot_i_open)
plotter_i_open =
new_plotter(NULL,
PLOTTER_I_OPEN_FILENAME,
"open connections over time by port - instantaneous",
"time","number of connections",
NULL);
if (doplot_openclose) {
plotter_openclose =
new_plotter(NULL,
PLOTTER_OPENCLOSE_FILENAME,
"connections opened and closed over time",
"time","number of connections",
NULL);
line_num_opens = new_line(plotter_openclose, "Number Opens", "green");
line_num_closes = new_line(plotter_openclose, "Number Closes", "red");
line_open_conns = new_line(plotter_openclose, "Total Open", "blue");
}
if (doplot_halfopen) {
plotter_halfopen =
new_plotter(NULL,
PLOTTER_HALFOPEN_FILENAME,
"half open connections over time",
"time","number of half open connections",
NULL);
line_num_halfopens = new_line(plotter_halfopen,
"Halfopen Conns", "green");
}
if (doplot_pureacks) {
plotter_pureacks =
new_plotter(NULL,
PLOTTER_PUREACKS_FILENAME,
"pure acks (no data) per second over time",
"time","pureacks/second",
NULL);
}
if (doplot_loss) {
plotter_loss =
new_plotter(NULL,
PLOTTER_LOSS_FILENAME,
"packet loss per second over time",
"time","events/second",
NULL);
line_dupacks = new_line(plotter_loss, "Triple Dupacks", "yellow");
line_rexmits = new_line(plotter_loss, "Retransmits", "blue");
}
if (doplot_rtt) {
plotter_rtt =
new_plotter(NULL,
PLOTTER_RTT_FILENAME,
"RTT over time",
"time","RTT (msecs)",
NULL);
line_rtt_min = new_line(plotter_rtt, "Min RTT", "green");
line_rtt_max = new_line(plotter_rtt, "Max RTT", "red");
line_rtt_avg = new_line(plotter_rtt, "Average RTT", "blue");
}
if (doplot_data) {
plotter_data =
new_plotter(NULL,
PLOTTER_DATA_FILENAME,
"Total Data Sent Over Time",
"time","total bytes",
NULL);
line_data_all = new_line(plotter_data, "All Data", "blue");
line_data_nonrexmit = new_line(plotter_data, "Non-Rexmitted Data", "red");
}
if (doplot_long) {
char title[100];
snprintf(title,sizeof(title),"connections still open after %d seconds\n",
longconn_duration);
plotter_long =
new_plotter(NULL,
PLOTTER_LONG_FILENAME,
title,
"time","number of connections",
NULL);
}
}
void
DoThru(
tcb *ptcb,
int nbytes)
{
double etime;
double thruput;
char *myname, *hisname;
/* init, if not already done */
if (ZERO_TIME(&ptcb->thru_firsttime)) {
char title[210];
ptcb->thru_firsttime = current_time;
ptcb->thru_lasttime = current_time;
ptcb->thru_pkts = 1;
ptcb->thru_bytes = nbytes;
/* bug fix from Michele Clark - UNC */
if (&ptcb->ptp->a2b == ptcb) {
myname = ptcb->ptp->a_endpoint;
hisname = ptcb->ptp->b_endpoint;
} else {
myname = ptcb->ptp->b_endpoint;
hisname = ptcb->ptp->a_endpoint;
}
/* create the plotter file */
snprintf(title,sizeof(title),"%s_==>_%s (throughput)",
myname, hisname);
ptcb->thru_plotter = new_plotter(ptcb,NULL,title,
"time","thruput (bytes/sec)",
THROUGHPUT_FILE_EXTENSION);
if (graph_time_zero) {
/* set graph zero points */
plotter_nothing(ptcb->thru_plotter, current_time);
}
/* create lines for average and instantaneous values */
ptcb->thru_avg_line =
new_line(ptcb->thru_plotter, "avg. tput", "blue");
ptcb->thru_inst_line =
new_line(ptcb->thru_plotter, "inst. tput", "red");
return;
}
/* if no data, then nothing to do */
if (nbytes == 0)
return;
/* see if we should output the stats yet */
if (ptcb->thru_pkts+1 >= thru_interval) {
/* compute stats for this interval */
etime = elapsed(ptcb->thru_firsttime,current_time);
if (etime == 0.0)
etime = 1000; /* ick, what if "no time" has passed?? */
thruput = (double) ptcb->thru_bytes / ((double) etime / 1000000.0);
/* instantaneous plot */
extend_line(ptcb->thru_inst_line,
current_time, (int) thruput);
/* compute stats for connection lifetime */
etime = elapsed(ptcb->ptp->first_time,current_time);
if (etime == 0.0)
etime = 1000; /* ick, what if "no time" has passed?? */
thruput = (double) ptcb->data_bytes / ((double) etime / 1000000.0);
/* long-term average */
extend_line(ptcb->thru_avg_line,
current_time, (int) thruput);
/* reset stats for this interval */
ptcb->thru_firsttime = current_time;
ptcb->thru_pkts = 0;
ptcb->thru_bytes = 0;
}
/* immediate value in yellow ticks */
if (plot_tput_instant) {
etime = elapsed(ptcb->thru_lasttime,current_time);
if (etime == 0.0)
etime = 1000; /* ick, what if "no time" has passed?? */
thruput = (double) nbytes / ((double) etime / 1000000.0);
plotter_temp_color(ptcb->thru_plotter,"yellow");
plotter_dot(ptcb->thru_plotter,
current_time, (int) thruput);
}
/* add in the latest packet */
ptcb->thru_lasttime = current_time;
++ptcb->thru_pkts;
ptcb->thru_bytes += nbytes;
}
