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tc: pie: update man page

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Update man page to reflect the changes made in Linux.

Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Leslie Monis 2019-03-27 21:06:06 +05:30 committed by Stephen Hemminger
parent 492ec9558b
commit 519ace17f9
2 changed files with 19 additions and 22 deletions
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40
man/man8/tc-pie.8
View File

@ -60,10 +60,10 @@ limit on the queue size in packets. Incoming packets are dropped when this limit
is reached. Default is 1000 packets.
.SS target
is the expected queue delay. The default target delay is 20ms.
is the expected queue delay. The default target delay is 15ms.
.SS tupdate
is the frequency at which the system drop probability is calculated. The default is 30ms.
is the frequency at which the system drop probability is calculated. The default is 15ms.
.SS alpha
.SS beta
@ -91,29 +91,27 @@ is turned off.
.SH EXAMPLES
# tc qdisc add dev eth0 root pie
# tc -s qdisc show
qdisc pie 8034: dev eth0 root refcnt 2 limit 200p target 19000us tupdate 29000us alpha 2 beta 20
Sent 7443524 bytes 7204 pkt (dropped 900, overlimits 0 requeues 0)
backlog 38998b 37p requeues 0
prob 0.123384 delay 25000us avg_dq_rate 1464840
pkts_in 7241 overlimit 900 dropped 0 maxq 186 ecn_mark 0
qdisc pie 8036: dev eth0 root refcnt 2 limit 1000p target 15.0ms tupdate 16.0ms alpha 2 beta 20
Sent 31216108 bytes 20800 pkt (dropped 80, overlimits 0 requeues 0)
backlog 16654b 11p requeues 0
prob 0.006161 delay 15666us avg_dq_rate 1159667
pkts_in 20811 overlimit 0 dropped 80 maxq 50 ecn_mark 0
# tc qdisc add dev eth0 root pie limit 100 target 20ms tupdate 30ms ecn
# tc -s qdisc show
qdisc pie 8036: dev eth0 root refcnt 2 limit 200p target 19000 tupdate 29000 alpha 2 beta 20 ecn
Sent 2491922 bytes 2507 pkt (dropped 214, overlimits 0 requeues 0)
backlog 33728b 32p requeues 0
prob 0.102262 delay 24000us avg_dq_rate 1464840
pkts_in 2468 overlimit 214 dropped 0 maxq 192 ecn_mark 71
qdisc pie 8036: dev eth0 root refcnt 2 limit 100p target 20.0ms tupdate 32.0ms alpha 2 beta 20 ecn
Sent 6591724 bytes 4442 pkt (dropped 27, overlimits 0 requeues 0)
backlog 18168b 12p requeues 0
prob 0.008845 delay 11348us avg_dq_rate 1342773
pkts_in 4454 overlimit 0 dropped 27 maxq 65 ecn_mark 0
# tc qdisc add dev eth0 root pie limit 100 target 50ms tupdate 30ms bytemode
# tc -s qdisc show
qdisc pie 8036: dev eth0 root refcnt 2 limit 200p target 19000 tupdate 29000 alpha 2 beta 20 ecn
Sent 2491922 bytes 2507 pkt (dropped 214, overlimits 0 requeues 0)
backlog 33728b 32p requeues 0
prob 0.102262 delay 24000us avg_dq_rate 1464840
pkts_in 2468 overlimit 214 dropped 0 maxq 192 ecn_mark 71
qdisc pie 8036: dev eth0 root refcnt 2 limit 100p target 50.0ms tupdate 32.0ms alpha 2 beta 20 bytemode
Sent 1616274 bytes 1137 pkt (dropped 0, overlimits 0 requeues 0)
backlog 13626b 9p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 1146 overlimit 0 dropped 0 maxq 23 ecn_mark 0
.SH SEE ALSO
.BR tc (8),
@ -121,9 +119,7 @@ is turned off.
.BR tc-red (8)
.SH SOURCES
o IETF draft submission is at http://tools.ietf.org/html/draft-pan-tsvwg-pie-00
o IEEE Conference on High Performance Switching and Routing 2013 : "PIE: A
Lightweight Control Scheme to Address the Bufferbloat Problem"
o RFC 8033: https://tools.ietf.org/html/rfc8033
.SH AUTHORS
PIE was implemented by Vijay Subramanian and Mythili Prabhu, also the authors of

1
man/man8/tc.8
View File

@ -848,6 +848,7 @@ was written by Alexey N. Kuznetsov and added in Linux 2.2.
.BR tc-mqprio (8),
.BR tc-pfifo (8),
.BR tc-pfifo_fast (8),
.BR tc-pie (8),
.BR tc-red (8),
.BR tc-route (8),
.BR tc-sfb (8),