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man: tc-htb.8: add missing class parameter quantum 

Add description for htb class parameter quantum.

Signed-off-by: Benjamin Lee <ben@b1c1l1.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
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Benjamin Lee 2020-04-08 22:12:14 -07:00 committed by Stephen Hemminger
parent d8d59421b6
commit 6ecd0198c0
1 changed files with 13 additions and 0 deletions
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man/man8/tc-htb.8
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@ -30,6 +30,8 @@ bytes
bytes
.B ] [ prio
priority
.B ] [ quantum
bytes
.B ]
.SH DESCRIPTION
@ -143,6 +145,17 @@ Amount of bytes that can be burst at 'infinite' speed, in other words, as fast
as the interface can transmit them. For perfect evening out, should be equal to at most one average
packet. Should be at least as high as the highest cburst of all children.
.TP
quantum bytes
Number of bytes to serve from this class before the scheduler moves to the next class.
Default value is
.B rate
divided by the qdisc
.B r2q
parameter. If specified,
.B r2q
is ignored.
.SH NOTES
Due to Unix timing constraints, the maximum ceil rate is not infinite and may in fact be quite low. On Intel,
there are 100 timer events per second, the maximum rate is that rate at which 'burst' bytes are sent each timer tick.