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Commit 8b9f44aa authored by Joanne Hugé's avatar Joanne Hugé
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Add long packet jitter measures

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measure-analysis/measure-report.md
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......@@ -55,14 +55,29 @@ Minimum | Maximum | Average
An UDP packet is periodically sent from one board to another using a real time thread. The receiving board calculates the intervals between the packets it receives, and sees how much it differs from the scheduled interval.
**Common test metadata:** Device: A20, Linux kernel version: 5.6, Task priority: 98, Interval: 1000us, Boot Parameters: isolcpus,rcu_nocbs,irqaffinity, ETF qdisc delta: None, Device and processor load: None, Test duration: 0h0, Speed (Mb/s): 1000, ETF offset: 500us, Packet route: E2E, qdisc: pfifo_fast, Client device: Shuttle
**Common test metadata:** Device: A20, Linux kernel version: 5.6, Task priority: 98, Boot Parameters: isolcpus,rcu_nocbs,irqaffinity, ETF qdisc delta: None, Device and processor load: None, Speed (Mb/s): 1000, ETF offset: 500us, Packet route: E2E, qdisc: pfifo_fast, Client device: Shuttle
Metadata | Minimum | Maximum | Average | Standard deviation | Lost packets
----------- | ----------------- | ----------------- | ----------------- | ------------------ | ------------
**XDP** | **Packet jitter** | **Packet jitter** | **Packet jitter** | **Packet jitter** |
yes (11582) | 0.0000us | 100.0000us | 59.4658us | 3.4778us | 0
no (10949) | 0.0000us | 239.0000us | 140.4619us | 3.0228us | 0
Metadata | Minimum | Maximum | Average | Standard deviation | Lost packets
------------------------ | ----------------- | ----------------- | ----------------- | ------------------ | ------------
**XDP, duration, i** | **Packet jitter** | **Packet jitter** | **Packet jitter** | **Packet jitter** |
yes, 0h0, 1000us (11582) | 0.0000us | 100.0000us | 59.4658us | 3.4778us | 0
no, 0h0, 1000us (10949) | 0.0000us | 239.0000us | 140.4619us | 3.0228us | 0
no, 15h1, 1000us (54075815) | 0.0000us | 550.0000us | 299.5232us | 7.1155us | 0
no, 15h0, 500us (108100303) | 0.0000us | 457.0000us | 246.4996us | 7.5832us | 0
![alt text](measures/graphs/packet_jitterPacket jitter.png "packet_jitter Graph")
### shuttle_a20_signal_jitter results
Two A20 boards are connected end to end with an ethernet cable to a shuttle. All devices are synchronized with PTP. The shuttle sends packets containing timestamps to the boards, and the boards emit a signal at the given timestamp. A logic analyzer measures the variation difference between the signals of the two boards.
**Common test metadata:** Device: A20, Linux kernel version: 5.6, Task priority: 98, Interval: 1000us, Boot Parameters: isolcpus,rcu_nocbs,irqaffinity, ETF qdisc delta: None, Device and processor load: None, Test duration: 0h20, Speed (Mb/s): 1000, ETF offset: 500us, Packet route: E2E, qdisc: pfifo_fast, Client device: A20, XDP: no
Minimum | Maximum | Average | Standard deviation | Lost packets
----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- | ------------
**Shuttle controlled A20 signal output jitter** | **Shuttle controlled A20 signal output jitter** | **Shuttle controlled A20 signal output jitter** | **Shuttle controlled A20 signal output jitter** |
0.0000us | 267.0000us | 7.7268us | 10.8222us | 0
![alt text](measures/graphs/shuttle_a20_signal_jitterShuttle controlled A20 signal output jitter.png "shuttle_a20_signal_jitter Graph")
measure-analysis/measures/measure_sets.json
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{"cyclictest_wake-up_latency": {"ids": [3, 5], "next_id": 6}, "shuttle_signal_jitter": {"ids": [0], "next_id": 1}, "packet_jitter": {"ids": [0, 1], "next_id": 2}}
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{"cyclictest_wake-up_latency": {"ids": [3, 5], "next_id": 6}, "shuttle_signal_jitter": {"ids": [0], "next_id": 1}, "packet_jitter": {"ids": [0, 1, 2, 3], "next_id": 4}, "shuttle_a20_signal_jitter": {"ids": [0], "next_id": 1}}
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measure-analysis/measures/packet_jitter2.json 0 → 100644
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{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["Packet jitter"], "units": ["us"], "middle": 0, "props": [[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 1, 2, 0, 1, 0, 0, 0, 3, 6, 0, 1, 2, 0, 0, 1, 3, 5, 0, 4, 1, 3, 3, 2, 2, 8, 2, 7, 5, 6, 7, 1, 8, 8, 9, 10, 6, 7, 16, 13, 16, 15, 20, 22, 20, 26, 31, 26, 26, 37, 42, 43, 34, 46, 51, 51, 46, 52, 67, 58, 46, 74, 64, 69, 59, 73, 68, 78, 80, 86, 69, 99, 108, 106, 128, 143, 181, 243, 380, 634, 827, 904, 892, 1047, 2581, 9024, 32784, 94612, 189803, 239689, 176038, 70507, 18139, 4371, 1532, 963, 810, 889, 992, 1054, 1798, 4081, 8363, 12192, 11606, 11855, 19495, 29856, 28449, 20401, 15667, 16373, 23256, 46570, 86568, 97388, 63654, 37797, 35024, 45317, 70743, 147718, 426727, 1840579, 7643468, 16604094, 14932507, 6581249, 1975826, 552271, 201782, 95281, 55046, 38739, 31685, 34959, 55919, 94743, 102207, 61305, 30065, 19001, 17302, 22366, 29784, 27158, 16720, 11079, 12933, 12181, 6978, 3208, 1359, 750, 457, 345, 269, 244, 345, 1015, 6694, 41729, 138640, 234110, 216132, 125914, 51920, 17240, 5725, 2118, 1171, 923, 986, 907, 628, 362, 240, 147, 107, 111, 111, 122, 107, 87, 78, 70, 75, 72, 63, 64, 60, 56, 59, 55, 57, 54, 46, 63, 45, 45, 42, 43, 36, 41, 53, 44, 33, 45, 37, 36, 34, 36, 31, 36, 32, 38, 40, 39, 40, 33, 24, 36, 24, 26, 23, 19, 20, 25, 16, 17, 20, 12, 19, 10, 17, 10, 19, 10, 15, 18, 13, 13, 6, 13, 8, 12, 7, 5, 15, 2, 7, 4, 11, 5, 7, 2, 2, 1, 3, 4, 0, 0, 0, 2, 1, 2, 2, 3, 1, 1, 2, 0, 4, 0, 1, 1, 1, 2, 1, 4, 0, 3, 2, 0, 3, 1, 1, 0, 1, 0, 1, 1, 3, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1]], "props_type": "histogram", "metadata": {"dev": "A20", "ker": "5.6", "prio": "98", "i": "1000us", "boot_p": "isolcpus,rcu_nocbs,irqaffinity", "delta": "None", "load": "None", "duration": "15h1", "speed": "1000", "etf_offset": "500us", "route": "E2E", "qdisc": "pfifo_fast", "client": "Shuttle", "XDP": "no", "lost_packets": "0"}}]}
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measure-analysis/measures/packet_jitter3.json 0 → 100644
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{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["Packet jitter"], "units": ["us"], "middle": 0, "props": [[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 3, 1, 1, 0, 0, 2, 1, 0, 0, 3, 4, 3, 1, 1, 2, 2, 2, 4, 3, 1, 3, 1, 1, 2, 2, 6, 2, 2, 8, 3, 8, 2, 6, 3, 1, 4, 7, 3, 8, 9, 2, 3, 7, 9, 5, 7, 2, 12, 8, 6, 13, 7, 8, 13, 13, 14, 28, 20, 26, 14, 17, 15, 15, 20, 16, 25, 23, 27, 16, 23, 23, 15, 26, 30, 31, 36, 24, 32, 34, 29, 31, 41, 39, 39, 33, 40, 43, 52, 60, 38, 54, 59, 65, 73, 79, 77, 81, 113, 106, 133, 149, 163, 173, 192, 208, 221, 247, 262, 281, 349, 452, 640, 858, 1288, 1586, 2027, 2871, 6190, 17250, 49881, 125994, 250750, 368000, 388953, 295370, 161643, 65698, 22649, 7867, 3593, 2618, 2960, 4346, 7962, 13954, 20978, 25920, 30252, 39579, 50304, 54222, 47953, 38350, 33269, 32912, 38839, 57170, 95154, 142689, 166353, 144805, 106611, 88372, 112845, 236036, 686368, 2236048, 7080370, 17904596, 27910153, 23587056, 12210063, 5499632, 2658847, 1144952, 434896, 187722, 103735, 70669, 58580, 66391, 105404, 163998, 179993, 134776, 77428, 46102, 36019, 35875, 42541, 51666, 54172, 44751, 33553, 28005, 24909, 17985, 10772, 5690, 2989, 1744, 1252, 1192, 1608, 4042, 16765, 62785, 177611, 336327, 416005, 357208, 220203, 105898, 43466, 17162, 7379, 3943, 2726, 2210, 1686, 1264, 879, 623, 448, 372, 318, 253, 284, 252, 227, 230, 203, 176, 206, 161, 163, 136, 136, 168, 128, 132, 125, 160, 135, 116, 130, 118, 93, 135, 120, 119, 112, 95, 96, 87, 90, 92, 73, 68, 70, 65, 54, 47, 43, 41, 52, 45, 28, 35, 30, 37, 23, 28, 27, 30, 26, 21, 18, 19, 28, 23, 24, 17, 21, 23, 18, 18, 12, 22, 19, 21, 18, 17, 15, 31, 18, 25, 16, 19, 15, 12, 6, 12, 5, 8, 12, 5, 5, 6, 5, 6, 4, 13, 6, 3, 2, 4, 4, 1, 6, 5, 2, 2, 2, 3, 2, 3, 0, 4, 1, 2, 1, 0, 0, 3, 2, 2, 0, 1, 1, 1, 0, 0, 2, 0, 0, 1, 0, 1, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]], "props_type": "histogram", "metadata": {"dev": "A20", "ker": "5.6", "prio": "98", "i": "500us", "boot_p": "isolcpus,rcu_nocbs,irqaffinity", "delta": "None", "load": "None", "duration": "15h0", "speed": "1000", "etf_offset": "500us", "route": "E2E", "qdisc": "pfifo_fast", "client": "Shuttle", "XDP": "no", "lost_packets": "0"}}]}
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measure-analysis/measures/shuttle_a20_signal_jitter0.json 0 → 100644
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{"measure_sets": [{"measure_type": "shuttle_a20_signal_jitter", "props_names": ["Shuttle controlled A20 signal output jitter"], "units": ["us"], "middle": 0, "props": [[258505, 195333, 118392, 79731, 61293, 45493, 35536, 30341, 28019, 26919, 25720, 23666, 21502, 18477, 16918, 14558, 10645, 8642, 7483, 6855, 6522, 6657, 7143, 7313, 7330, 7843, 8273, 8717, 9194, 9671, 9264, 7450, 5695, 4831, 4959, 5468, 6431, 6231, 5967, 6196, 5874, 4927, 3818, 2493, 1999, 1617, 1235, 1135, 557, 177, 102, 69, 68, 51, 40, 44, 41, 41, 29, 30, 33, 33, 32, 31, 26, 22, 23, 12, 19, 16, 14, 17, 7, 8, 12, 7, 4, 5, 3, 1, 1, 2, 2, 2, 0, 1, 0, 2, 0, 1, 1, 1, 0, 1, 1, 2, 1, 2, 0, 1, 0, 3, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 1, 2, 1, 2, 0, 1, 1, 1, 1, 0, 1, 1, 0, 2, 1, 0, 1, 0, 1, 1, 2, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 5, 2, 5, 1, 2, 3, 0, 2, 4, 1, 2, 2, 2, 3, 4, 5, 0, 2, 7, 3, 0, 4, 2, 3, 0, 1, 2, 2, 2, 0, 0, 3, 3, 1, 1, 0, 0, 4, 2, 0, 2, 1, 2, 1, 0, 0, 1, 2, 0, 3, 2, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1]], "props_type": "histogram", "metadata": {"dev": "A20", "ker": "5.6", "prio": "98", "i": "1000us", "boot_p": "isolcpus,rcu_nocbs,irqaffinity", "delta": "None", "load": "None", "duration": "0h20", "speed": "1000", "etf_offset": "500us", "route": "E2E", "qdisc": "pfifo_fast", "client": "A20", "XDP": "no", "lost_packets": "0"}}]}
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scripts/run-ptp4l
View file @ 8b9f44aa
......@@ -54,7 +54,7 @@ done
shift $((OPTIND-1))
if [ -z "$hardware_ts" ]; then
opts+=" -S"
opts+=" -S "
fi
opts+="-i $interface"
......
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