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traffic-pacing-edt: tc_fq_pacer.sh adjust packet per flow_limit

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This was causing strange issues, where a TCP single flow could not
achieve the correct bandwidth.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
This commit is contained in:
Jesper Dangaard Brouer
2020-11-14 18:44:40 +01:00
parent 9f97d984cb
commit 1fb4483207
2 changed files with 8 additions and 1 deletions
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1
traffic-pacing-edt/edt_pacer02.c
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@@ -10,6 +10,7 @@ char _license[] SEC("license") = "GPL";
/* skb->len in bytes, thus easier to keep rate in bytes */
#define RATE_IN_BITS (1000 * 1000 * 1000ULL)
//#define RATE_IN_BITS (200 * 1000 * 1000ULL)
//#define RATE_IN_BITS (500 * 1000 * 1000ULL)
#define RATE_IN_BYTES (RATE_IN_BITS / 8)

8
traffic-pacing-edt/tc_fq_pacer.sh
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@@ -40,6 +40,12 @@ i=0
for dir in /sys/class/net/$DEV/queues/tx-*; do
# Details: cause-off-by-one, as tx-0 becomes handle 1:
((i++)) || true
tc qdisc add dev $DEV parent 7FFF:$i handle $i: fq
#tc qdisc add dev $DEV parent 7FFF:$i handle $i: fq
#
# The higher 'flow_limit' is needed for high-BW pacing
tc qdisc add dev $DEV parent 7FFF:$i handle $i: fq \
flow_limit 1000
#
# quantum $((1514*4)) initial_quantum $((1514*20))
# tc qdisc add dev $DEV parent 7FFF:$i handle $i: fq maxrate 930mbit
done