On 2/18/26 11:55, Warner Losh wrote:
The branch main has been updated by imp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=8e593a1f143203cace2e14bd6629a8ebdf9b47dc
commit 8e593a1f143203cace2e14bd6629a8ebdf9b47dc
Author: Warner Losh <[email protected]>
AuthorDate: 2026-02-10 14:59:58 +0000
Commit: Warner Losh <[email protected]>
CommitDate: 2026-02-18 16:39:28 +0000
fortune: fix netstat tip
netstati <mumble> 8 reports in bytes per second (averaged over 8
seconds) rather than bits per second because it reports the total
in bits over the 8 seconds...
Sponsored by: Netflix
Eh, I originally thought this too, but the original hint is right. netstat
doesn't report a per-second average, just the delta, so when using '8' it
is showing the number of bytes sent/received in the 8 second interval which
effectively multiplies the per-second rate by 8, so if it is a constant
rate you get the bits-per-second as the output.
Relevant code from sidewaysintpr() in if.c:
fill_iftot(new);
xo_open_instance("stats");
show_stat("lu", 10, "received-packets",
new->ift_ip - old->ift_ip, 1, 1);
show_stat("lu", 5, "received-errors",
new->ift_ie - old->ift_ie, 1, 1);
show_stat("lu", 5, "dropped-packets",
new->ift_id - old->ift_id, 1, 1);
show_stat("lu", 10, "received-bytes",
new->ift_ib - old->ift_ib, 1, 0);
show_stat("lu", 10, "sent-packets",
new->ift_op - old->ift_op, 1, 1);
show_stat("lu", 5, "send-errors",
new->ift_oe - old->ift_oe, 1, 1);
show_stat("lu", 10, "sent-bytes",
new->ift_ob - old->ift_ob, 1, 0);
show_stat("NRSlu", 5, "collisions",
new->ift_co - old->ift_co, 1, 1);
if (dflag)
show_stat("LSlu", 5, "dropped-packets",
new->ift_od - old->ift_od, 1, 1);
xo_close_instance("stats");
xo_emit("\n");
xo_flush();
(Note no scaling, just 'new - old')
--
John Baldwin
