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spec/fixtures: stats: add simplified iperf test fixture
Extract a minimal JSON footprint of an iperf benchmark stat block containing start, a single sample interval, and end metrics. Signed-off-by: Philip Li <philip.li@intel.com>
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‎spec/fixtures/stats/iperf/1‎

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{
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"start": {
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"connected": [
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{
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"socket": 6,
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"local_host": "127.0.0.1",
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"local_port": 39820,
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"remote_host": "127.0.0.1",
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"remote_port": 5201
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}
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],
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"version": "iperf 3.20+",
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"system_info": "Linux ethanolxb491host 7.0.0-rc2 #1 SMP PREEMPT_DYNAMIC Mon Mar 9 09:58:05 UTC 2026 x86_64",
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"timestamp": {
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"time": "Tue, 07 Apr 2026 12:31:42 GMT",
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"timesecs": 1775565102,
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"timemillisecs": 1775565102555
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},
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"connecting_to": {
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"host": "127.0.0.1",
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"port": 5201
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},
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"cookie": "56vcairk4tpehrwhg2qsvy2b4krtat3g3sem",
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"tcp_mss_default": 32768,
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"target_bitrate": 0,
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"fq_rate": 0,
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"sock_bufsize": 0,
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"sndbuf_actual": 16384,
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"rcvbuf_actual": 131072,
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"test_start": {
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"protocol": "TCP",
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"num_streams": 1,
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"blksize": 131072,
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"omit": 0,
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"duration": 10,
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"bytes": 0,
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"blocks": 0,
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"reverse": 0,
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"tos": 0,
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"target_bitrate": 0,
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"bidir": 0,
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"fqrate": 0,
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"interval": 1,
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"gso": 0,
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"gro": 0
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}
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},
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"intervals": [
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{
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"streams": [
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{
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"socket": 6,
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"start": 0,
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"end": 1.000976,
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"seconds": 1.0009759664535522,
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"bytes": 3002728448,
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"bits_per_second": 23998405944.859089,
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"retransmits": 0,
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"snd_cwnd": 1047728,
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"snd_wnd": 674816,
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"rtt": 49,
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"rttvar": 10,
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"pmtu": 65535,
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"reorder": 0,
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"omitted": false,
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"sender": true
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}
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],
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"sum": {
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"start": 0,
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"end": 1.000976,
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"seconds": 1.0009759664535522,
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"bytes": 3002728448,
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"bits_per_second": 23998405944.859089,
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"retransmits": 0,
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"omitted": false,
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"sender": true
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}
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}
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],
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"end": {
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"streams": [
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{
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"sender": {
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"socket": 6,
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"start": 0,
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"end": 10.001274,
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"seconds": 10.001274,
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"bytes": 29439950848,
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"bits_per_second": 23548960540.8271,
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"retransmits": 0,
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"reorder": 0,
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"max_snd_cwnd": 1047728,
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"max_snd_wnd": 674816,
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"max_rtt": 65,
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"min_rtt": 40,
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"mean_rtt": 51,
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"sender": true
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},
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"receiver": {
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"socket": 6,
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"start": 0,
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"end": 10.001405,
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"seconds": 10.001274,
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"bytes": 29439950848,
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"bits_per_second": 23548652092.780964,
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"sender": true
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}
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}
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],
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"sum_sent": {
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"start": 0,
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"end": 10.001274,
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"seconds": 10.001274,
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"bytes": 29439950848,
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"bits_per_second": 23548960540.8271,
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"retransmits": 0,
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"sender": true
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},
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"sum_received": {
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"start": 0,
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"end": 10.001405,
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"seconds": 10.001405,
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"bytes": 29439950848,
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"bits_per_second": 23548652092.780964,
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"sender": true
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},
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"cpu_utilization_percent": {
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"host_total": 101.81275995134462,
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"host_user": 0.36397562112144322,
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"host_system": 101.44878433022318,
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"remote_total": 51.298736358678887,
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"remote_user": 0.87079686932267775,
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"remote_system": 50.4279494879424
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},
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"sender_tcp_congestion": "cubic",
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"receiver_tcp_congestion": "cubic"
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}
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}

‎spec/fixtures/stats/iperf/1.yaml‎

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tcp.sender.bps: 23548960540.8271
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tcp.receiver.bps: 23548652092.780964

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