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ss: update to bw print 

Display kilobit with the standard suffix.
Add comment to describe where data rate suffixes come from.
Add support for terrabit.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Stephen Hemminger 2020-05-05 10:18:58 -07:00
parent e133fa9c73
commit 8142c76232
1 changed files with 8 additions and 1 deletions
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9
misc/ss.c
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@ -2378,16 +2378,23 @@ static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
return 0; return 0;
} }
/*
* Display bandwidth in standard units
* See: https://en.wikipedia.org/wiki/Data-rate_units
* bw is in bits per second
*/
static char *sprint_bw(char *buf, double bw) static char *sprint_bw(char *buf, double bw)
{ {
if (numeric) if (numeric)
sprintf(buf, "%.0f", bw); sprintf(buf, "%.0f", bw);
else if (bw >= 1e12)
sprintf(buf, "%.3gT", bw / 1e12);
else if (bw >= 1e9) else if (bw >= 1e9)
sprintf(buf, "%.3gG", bw / 1e9); sprintf(buf, "%.3gG", bw / 1e9);
else if (bw >= 1e6) else if (bw >= 1e6)
sprintf(buf, "%.3gM", bw / 1e6); sprintf(buf, "%.3gM", bw / 1e6);
else if (bw >= 1e3) else if (bw >= 1e3)
sprintf(buf, "%.3gK", bw / 1e3); sprintf(buf, "%.3gk", bw / 1e3);
else else
sprintf(buf, "%g", bw); sprintf(buf, "%g", bw);