Have a 3.13.0-44-generic kernel only, so no fq_codel as module. And what about script structure (handlers, classids)? Is it correct? -----Original Message----- From: lartc-owner@xxxxxxxxxxxxxxx [mailto:lartc-owner@xxxxxxxxxxxxxxx] On Behalf Of Dave Taht Sent: Monday, January 26, 2015 12:48 AM To: Дмитрий Шикуть Cc: lartc@xxxxxxxxxxxxxxx Subject: Re: Qdisc HTB root overlimits and requeues give fq_codel a shot instead of sfq. see also the sqm-scripts. requeues means that you hit a limit and had to wait for the next scheduled round. On Sun, Jan 25, 2015 at 12:27 PM, Дмитрий Шикуть <dshykuts@xxxxxxxxxxxxxxxxxxx> wrote: > Hello! > > I created script for traffic shaping. After run, there are many > overlimits and requeues in tc stat for htb root discipline. Is this > normal or something going wrong? > > Here is script: > > #!/bin/sh > ### BEGIN INIT INFO > # Provides: trafficshaper > # Required-Start: $network $syslog > # Required-Stop: $network $syslog > # Should-Start: > # Should-Stop: > # Default-Start: 2 3 4 5 > # Default-Stop: 0 1 6 > # Short-Description: Start and stop trafficshaper # Description: > trafficshaper ### END INIT INFO > > PATH=/sbin:/bin:/usr/bin > > . /lib/init/vars.sh > . /lib/lsb/init-functions > > # Reads config file (will override defaults above) [ -r > /etc/default/trafficshaper ] && . /etc/default/trafficshaper > > # Devices calculation > devDL=$dev > devUL=ifb0 > > # Flush discuiplines for DL and UL devices delete_qdisc () { > tc qdisc del dev $devDL ingress 2>/dev/null > tc qdisc del dev $devUL root 2>/dev/null > tc qdisc del dev $devDL root 2>/dev/null } > > case "$1" in > start|"") > log_daemon_msg "Starting trafficshaper" "ok" > > # Global constants > divisor=2048 > quantum=1514 > perturb=10 > > reNum="\([0-9]*\)[a-zA-Z]*" > reStr="[0-9]*\([a-zA-Z]*\)" > > # Bandwidth calculation > bwPrivateDL=`expr \( $bwDL : $reNum \) / 2``expr $bwDL : $reStr` > bwPublicDL=$bwPrivateDL > > bwPrivateUL=`expr \( $bwUL : $reNum \) / 2``expr $bwUL : $reStr` > bwPublicUL=$bwPrivateUL > > # Delete discuiplines for DL and UL devices > delete_qdisc > > ifconfig $devUL txqueuelen 1000 2>/dev/null > ifconfig $devUL up 2>/dev/null > > # Add discuiplines for DL device > tc qdisc add dev $devDL root handle 1: htb default 12 > > # Add classes for DL device > tc class add dev $devDL parent 1: classid 1:1 htb rate $bwDL > ceil $bwDL quantum $quantum > tc class add dev $devDL parent 1:1 classid 1:11 htb prio 1 > rate $bwPrivateDL ceil $bwDL quantum $quantum > tc class add dev $devDL parent 1:1 classid 1:12 htb prio 2 > rate $bwPublicDL ceil $bwPublicDL quantum $quantum > > tc qdisc add dev $devDL parent 1:11 handle 11: sfq divisor > $divisor perturb $perturb > tc qdisc add dev $devDL parent 1:12 handle 12: sfq divisor > $divisor perturb $perturb > > tc filter add dev $devDL protocol all prio 1 parent 11: handle > 11 flow hash keys dst divisor $divisor baseclass 1:11 > tc filter add dev $devDL protocol all prio 2 parent 12: handle > 12 flow hash keys dst divisor $divisor baseclass 1:12 > > # Add filters for DL device > if [ -s $filePrivate ]; then > for ip in `grep -v "#" $filePrivate`; do > if [ `expr index $ip :` = 0 ]; then > tc filter add dev $devDL protocol all prio 1 parent 1: > u32 match ip dst $ip flowid 1:11 > else > echo $ip > tc filter add dev $devDL protocol all prio 1 parent 1: > u32 match ip6 dst $ip flowid 1:11 > fi > done > fi > > tc filter add dev $devDL protocol all prio 2 parent 1: u32 > match ip dst 0/0 flowid 1:12 > tc filter add dev $devDL protocol all prio 2 parent 1: u32 > match ip6 dst ::/0 flowid 1:12 > > # Add discuiplines for UL device > tc qdisc add dev $devUL root handle 2: htb default 22 > > # Add classes for UL device > tc class add dev $devUL parent 2: classid 2:2 htb rate $bwUL > ceil $bwUL quantum $quantum > tc class add dev $devUL parent 2:2 classid 2:21 htb prio 1 > rate $bwPrivateUL ceil $bwUL quantum $quantum > tc class add dev $devUL parent 2:2 classid 2:22 htb prio 2 > rate $bwPublicUL ceil $bwPublicUL quantum $quantum > > tc qdisc add dev $devUL parent 2:21 handle 21: sfq divisor > $divisor perturb $perturb > tc qdisc add dev $devUL parent 2:22 handle 22: sfq divisor > $divisor perturb $perturb > > tc filter add dev $devUL protocol all prio 1 parent 21: handle > 21 flow hash keys src divisor $divisor baseclass 2:21 > tc filter add dev $devUL protocol all prio 2 parent 22: handle > 22 flow hash keys src divisor $divisor baseclass 2:22 > > # Add filters for UL device > if [ -s $filePrivate ]; then > for ip in `grep -v "#" $filePrivate`; do > if [ `expr index $ip :` = 0 ]; then > tc filter add dev $devUL protocol all prio 1 parent 2: > u32 match ip src $ip flowid 2:21 > else > tc filter add dev $devUL protocol all prio 1 parent 2: > u32 match ip6 src $ip flowid 2:21 > fi > done > fi > > tc filter add dev $devUL protocol all prio 2 parent 2: u32 > match ip src 0/0 flowid 2:22 > tc filter add dev $devUL protocol all prio 2 parent 2: u32 > match ip6 src ::/0 flowid 2:22 > > # Add mirred redirect discuiplines for UL device > tc qdisc add dev $devDL ingress > tc filter add dev $devDL parent ffff: protocol all u32 match > u32 0 0 action mirred egress redirect dev $devUL > > log_end_msg 0 > ;; > > stop) > log_daemon_msg "Stopping trafficshaper" "ok" > > # Delete discuiplines for DL and UL devices > delete_qdisc > > log_end_msg 0 > ;; > > restart|force-reload) > $0 stop > $0 start > ;; > > *) > echo "Usage: trafficshaper [start|stop|restart|force-reload]" >&2 > exit 3 > ;; > esac > > : > > And there is tc show output: > > # tc -s qdisc show dev eth0 > > qdisc htb 1: root refcnt 6 r2q 10 default 12 direct_packets_stat 5 > direct_qlen 1000 Sent 147698795 bytes 958679 pkt (dropped 0, > overlimits 43066 requeues 148) backlog 0b 0p requeues 148 qdisc sfq > 11: parent 1:11 limit 127p quantum 1514b depth 127 divisor 2048 > perturb 10sec Sent 81156975 bytes 527521 pkt (dropped 0, overlimits 0 > requeues 0) backlog 0b 0p requeues 0 qdisc sfq 12: parent 1:12 limit > 127p quantum 1514b depth 127 divisor 2048 perturb 10sec Sent 66541452 > bytes 431152 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p > requeues 0 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent > 2333918666 bytes 1999165 pkt (dropped 421, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > > # tc -s class show dev eth0 > > class htb 1:11 parent 1:1 leaf 11: prio 1 rate 30000Kbit ceil > 60000Kbit burst 1593b cburst 1590b Sent 82530637 bytes 547960 pkt > (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p > requeues 0 > lended: 521119 borrowed: 5867 giants: 0 > tokens: 6097 ctokens: 3048 > > class htb 1:1 root rate 60000Kbit ceil 60000Kbit burst 1590b cburst > 1590b Sent 150027823 bytes 987451 pkt (dropped 0, overlimits 0 > requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 > lended: 5867 borrowed: 0 giants: 0 > tokens: 3215 ctokens: 3215 > > class htb 1:12 parent 1:1 leaf 12: prio 2 rate 30000Kbit ceil > 30000Kbit burst 1593b cburst 1593b Sent 67497186 bytes 439491 pkt > (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p > requeues 0 > lended: 437399 borrowed: 0 giants: 0 > tokens: 6431 ctokens: 6431 > > Is my script correct or I'm something missing? > > Thank's. > > -- > To unsubscribe from this list: send the line "unsubscribe lartc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info > at http://vger.kernel.org/majordomo-info.html -- Dave Täht thttp://www.bufferbloat.net/projects/bloat/wiki/Upcoming_Talks -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
