On Tue, 2013-07-09 at 16:58 +0100, Sam Crawford wrote:
> Thanks very much! One quick kernel upgrade later (to add fq_codel
> support) and that has definitely helped. I'll run a larger set of
> tests and report back.
>
>
> One final question: I understand that this applies a 100Mbit aggregate
> shaper to the specified destination(s). I'd like to instead apply this
> shaper on a per-destination or per-flow basis, but without specifying
> each individual destination (i.e. so that 10x 100M clients could still
> saturate the 1G link). Do you know if this is possible?
If you are interested by a qdisc setup you could adapt the following to
your needs. It uses hashing so you could potentially have two flows
sharing a single bucket.
---------------------------------------------
#!/bin/bash
ETH=eth0
setup_htb() {
FROM=$1
TO=$2
RATE=$3
for i in $( seq $FROM $TO ); do
slot=$( printf %x $((i)) )
echo class add dev $ETH parent 8000: classid 8000:$slot htb rate ${RATE}
echo qdisc add dev $ETH parent 8000:$slot handle $slot: codel
done
}
tc qdisc del dev $ETH root 2>/dev/null
(
echo qdisc add dev $ETH root handle 8000: est 1sec 4sec htb r2q 100 default
10000
setup_htb 1 1024 100Mbit
echo filter add dev $ETH parent 8000: handle 2 pref 20 flow hash keys
src,dst,proto-src,proto-dst baseclass 8000:1 divisor 1024
) | tc -b
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