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ci: add 20% jitter in test environment (#10504)

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To simulate the real-world more accurately, we add a 20% jitter to the
specified latency on the router containers.
This commit is contained in:
Thomas Eizinger
2025-10-02 05:27:05 +00:00
committed by GitHub
parent 881514edfc
commit 0d61cacb08
1 changed files with 3 additions and 2 deletions
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5
scripts/router/router.sh
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@@ -67,9 +67,10 @@ fi
# Add configurable latency if specified
if [ -n "${NETWORK_LATENCY_MS:-}" ]; then
LATENCY=$((NETWORK_LATENCY_MS / 2)) # Latency is only applied to outbound packets. To achieve the actual configured latency, we apply half of it to each interface.
JITTER=$((LATENCY / 5)) # Vary latency by 20%
tc qdisc add dev internet root netem delay "${LATENCY}ms"
tc qdisc add dev internal root netem delay "${LATENCY}ms"
tc qdisc add dev internet root netem delay "${LATENCY}ms" "${JITTER}ms"
tc qdisc add dev internal root netem delay "${LATENCY}ms" "${JITTER}ms"
fi
echo "-----------------------------------------------------------------------------------------------"