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| author | d. johnson <fenris02@fedoraproject.org> | 2014-10-01 01:13:14 -0500 |
|---|---|---|
| committer | d. johnson <fenris02@fedoraproject.org> | 2014-10-01 01:13:14 -0500 |
| commit | a61a8ad5f2501614b667a23f1091b9734e0f9c48 (patch) | |
| tree | 99597f185d748d6548de51d7476bb66fc3ca37d7 /debloat.sh | |
| parent | f59794a19d23e6b1724d841185f89328ab81993b (diff) | |
| download | cleanup-a61a8ad5f2501614b667a23f1091b9734e0f9c48.tar.gz cleanup-a61a8ad5f2501614b667a23f1091b9734e0f9c48.tar.xz cleanup-a61a8ad5f2501614b667a23f1091b9734e0f9c48.zip | |
re-pull debloat files from https://github.com/dtaht/deBloat/tree/master/src
Diffstat (limited to 'debloat.sh')
| -rwxr-xr-x | debloat.sh | 21 |
1 files changed, 11 insertions, 10 deletions
@@ -1,18 +1,20 @@ #!/bin/bash -# debloat.sh - improves network latency by reducing excessive buffering +# debloat.sh - improves network latency by reducing excessive buffering # and offloads on common devices and enabling fq_codel. # Copyright 2012 M D Taht. Released into the public domain. -# This script is presently targetted to go into +# This script is presently targetted to go into # /etc/network/ifup.d on debian derived systems +[[ "$IFACE" == "lo" ]] && exit 0 + LL=1 # go for lowest latency ECN=1 # enable ECN BQLLIMIT100=3000 # at speeds below 100Mbit, 2 big packets is enough -BQLLIMIT10=1514 # at speeds below 10Mbit, 1 big packet is enough. +BQLLIMIT10=1514 # at speeds below 10Mbit, 1 big packet is enough. # Actually it would be nice to go to just one packet QDISC=fq_codel # There are multiple variants of fq_codel in testing -FQ_LIMIT="" # the default 10000 packet limit mucks with slow start at speeds +FQ_LIMIT="" # the default 10000 packet limit mucks with slow start at speeds # at 1Gbit and below. Somewhat arbitrary figures selected. [ -z "$IFACE" ] && echo error: $0 expects IFACE parameter in environment && exit 1 @@ -20,7 +22,7 @@ FQ_LIMIT="" # the default 10000 packet limit mucks with slow start at speeds [ -z `which tc` ] && echo error: tc is required && exit 1 # FIXME see if $QDISC is available. modprobe? -# BUGS - need to detect bridges. +# BUGS - need to detect bridges. # - Need filter to distribute across mq ethernet devices # - needs an "undebloat" script for ifdown to restore BQL autotuning @@ -55,7 +57,7 @@ et() { # to be voice, video, best effort and background wifi() { - tc qdisc add dev $IFACE handle 1 root mq + tc qdisc add dev $IFACE handle 1 root mq tc qdisc add dev $IFACE parent 1:1 $QDISC $FQ_OPTS noecn tc qdisc add dev $IFACE parent 1:2 $QDISC $FQ_OPTS tc qdisc add dev $IFACE parent 1:3 $QDISC $FQ_OPTS @@ -67,7 +69,7 @@ wifi() { mq() { local I=1 - tc qdisc add dev $IFACE handle 1 root mq + tc qdisc add dev $IFACE handle 1 root mq for i in $S/$IFACE/queues/tx-* do @@ -88,7 +90,7 @@ local SPEED=`cat $S/$IFACE/speed` 2> /dev/null if [ -n "$SPEED" ] then [ "$SPEED" = 4294967295 ] && echo "no ethernet speed selected. debloat estimate will be WRONG" - [ "$SPEED" -lt 1001 ] && FQ_LIMIT=1200 + [ "$SPEED" -lt 1001 ] && FQ_LIMIT="limit 1200" if [ "$SPEED" -lt 101 ] then [ $LL -eq 1 ] && et # for lowest latency disable offloads @@ -107,7 +109,7 @@ fix_queues() { local QUEUES=`ls -d $S/$IFACE/queues/tx-* | wc -l | awk '{print $1}'` if [ $QUEUES -gt 1 ] then - if [ -x $S/$IFACE/phy80211 ] + if [ -x $S/$IFACE/phy80211 ] then wifi else @@ -124,4 +126,3 @@ fix_speed fix_queues exit 0 - |