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Make disabling of tso and gso bandwith dependant

This commit is contained in:
hk 2017-01-27 09:41:49 +01:00
parent d751745554
commit 6e4a6f639e
1 changed files with 13 additions and 4 deletions
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17
src/tc-gen.sh
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@ -181,6 +181,17 @@ get_mtu () {
cat /sys/class/net/${1}/mtu cat /sys/class/net/${1}/mtu
} }
get_tx_offloads () {
# Takes rate in mbit/s as parameter
local RATE=$1
if [[ ${RATE} -lt 40 ]]; then
echo "tso off gso off"
else
echo "tso on gso on"
fi
}
get_limit () { get_limit () {
# Takes rate in mbit/s as parameter # Takes rate in mbit/s as parameter
local RATE=$1 local RATE=$1
@ -227,10 +238,8 @@ print_config () {
} }
apply_egress_shaping () { apply_egress_shaping () {
# tso and probably gso on the outgoing interface makes the shaping # Disable tso and gso for lower bandwiths
# inaccurate in my tests. It is not unusable with these on but the CPU ${ETHTOOL} --offload ${IF_NAME} $(get_tx_offloads ${UP_RATE})
# hit is minimal in my tests and it makes the shaping much more accurate.
${ETHTOOL} --offload ${IF_NAME} tso off gso off
# Add root handle and set default leaf # Add root handle and set default leaf
${TC} qdisc add dev ${IF_NAME} root handle 1: htb default 99 ${TC} qdisc add dev ${IF_NAME} root handle 1: htb default 99