Add new packet jitter measures

measure-analysis/measure-report.md

@@ -50,4 +50,19 @@ Minimum    | Maximum    | Average    | Standard deviation
 
 ![alt text](measures/graphs/packet_rttrtt.png "packet_rtt Graph")
 
+### packet_jitter results
+
+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:** Linux kernel version: 4.19, Boot Parameters: isolcpus, Interval: 1000us, Task priority: 99, Device and processor load: ssh, route: switch
+
+Metadata                               | Minimum     | Maximum    | Average    | Standard deviation
+-------------------------------------- | ----------- | ---------- | ---------- | ------------------
+**delta, duration, qdisc, etf_offset** | **jitter**  | **jitter** | **jitter** | **jitter**        
+160us, 0h56, etf, 600us (3393011)      | -229.0000us | 204.0000us | 18.6086us  | 23.8092us         
+300us, 2h17, etf, 600us (8240231)      | -255.0000us | 175.0000us | 11.1936us  | 13.4745us         
+none, 0h51, pfifo_fast, none (3077562) | -324.0000us | 162.0000us | 8.5575us   | 13.0667us         
+
+![alt text](measures/graphs/packet_jitterjitter.png "packet_jitter Graph")
+
 

measure-analysis/measures/measure_sets.json

-{"cyclictest_wake-up_latency": {"ids": [25, 26, 28, 30, 31, 32], "next_id": 33}, "packet_rtt": {"ids": [0], "next_id": 1}}
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+{"cyclictest_wake-up_latency": {"ids": [25, 26, 28, 30, 31, 32], "next_id": 33}, "packet_rtt": {"ids": [0], "next_id": 1}, "packet_jitter": {"ids": [0, 1, 2], "next_id": 3}}
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measure-analysis/measures/packet_jitter0.json

+{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["jitter"], "units": ["us"], "middle": 229, "props": [[1, 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, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 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, 2, 3, 3, 5, 3, 3, 1, 5, 2, 1, 1, 2, 5, 3, 4, 1, 1, 1, 0, 1, 2, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 2, 1, 2, 6, 5, 2, 8, 8, 8, 10, 16, 17, 26, 19, 22, 27, 29, 23, 47, 32, 25, 36, 36, 51, 39, 45, 53, 50, 42, 57, 66, 59, 66, 81, 103, 108, 154, 170, 247, 324, 430, 548, 732, 893, 1026, 1266, 1505, 1659, 1991, 2246, 2460, 2740, 2916, 3109, 3032, 3279, 3261, 3377, 3397, 3261, 3150, 3166, 3240, 3188, 3222, 3499, 3694, 3872, 4282, 4703, 5375, 6254, 7762, 9510, 12304, 15790, 20185, 25549, 30344, 33643, 35215, 34870, 34826, 35937, 38570, 40695, 40906, 38095, 32845, 28093, 25054, 25391, 28072, 31515, 33144, 32684, 29770, 26485, 24348, 23966, 25943, 29488, 36220, 45215, 58793, 70816, 77412, 75568, 66848, 58881, 57255, 61195, 69602, 75427, 76801, 75517, 75979, 80271, 85902, 87415, 79795, 62828, 44410, 30357, 22150, 19369, 19584, 20536, 21648, 22260, 24691, 27750, 31203, 33938, 34109, 32740, 31439, 32579, 35737, 41127, 43867, 43572, 39498, 34098, 29916, 28317, 29924, 32434, 33756, 32673, 28495, 22457, 17231, 13177, 10591, 8725, 7820, 6834, 6186, 5365, 4863, 4398, 4045, 3700, 3448, 3224, 3055, 2758, 2741, 2620, 2493, 2441, 2412, 2335, 2228, 2215, 2098, 1881, 1805, 1642, 1491, 1264, 1127, 1061, 973, 881, 742, 652, 619, 587, 533, 518, 440, 416, 344, 280, 220, 211, 163, 124, 141, 122, 107, 102, 112, 86, 67, 62, 50, 63, 46, 43, 52, 44, 49, 39, 36, 30, 50, 24, 22, 27, 25, 27, 25, 27, 20, 23, 15, 12, 8, 16, 8, 12, 3, 7, 7, 1, 3, 5, 1, 1, 0, 3, 1, 2, 1, 2, 1, 4, 4, 3, 3, 3, 2, 2, 2, 2, 4, 3, 2, 3, 5, 1, 3, 2, 2, 0, 4, 0, 4, 3, 1, 1, 2, 0, 0, 2, 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, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]], "props_type": "histogram", "metadata": {"board": "Slate", "ker": "4.19", "boot_p": "isolcpus", "i": "1000us", "delta": "160us", "prio": "99", "load": "ssh", "duration": "0h56", "qdisc": "etf", "etf_offset": "600us", "route": "switch"}}]}
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measure-analysis/measures/packet_jitter1.json

+{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["jitter"], "units": ["us"], "middle": 255, "props": [[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, 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, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 2, 1, 0, 1, 0, 1, 2, 0, 1, 2, 1, 0, 0, 1, 2, 2, 4, 2, 4, 3, 1, 2, 3, 4, 6, 4, 8, 7, 5, 5, 4, 1, 8, 5, 8, 4, 11, 13, 23, 20, 25, 28, 36, 32, 45, 47, 52, 61, 61, 54, 58, 44, 76, 51, 48, 57, 58, 51, 57, 50, 48, 58, 51, 58, 76, 66, 58, 82, 67, 84, 81, 130, 107, 147, 170, 177, 231, 281, 348, 435, 505, 663, 834, 1039, 1337, 1642, 2126, 2546, 3089, 3475, 4045, 4510, 5131, 5920, 6918, 8124, 9478, 11116, 13162, 15440, 18123, 20985, 24066, 28009, 32875, 39314, 48054, 58896, 72405, 90133, 115426, 151096, 194588, 238376, 267353, 271756, 251771, 221081, 198648, 190832, 198447, 205911, 206451, 201022, 196188, 191852, 188584, 180569, 169150, 157164, 151577, 154613, 164597, 172275, 177657, 181498, 198942, 233036, 274927, 304812, 305615, 273503, 221471, 162340, 115060, 84993, 68698, 60851, 54182, 47915, 40002, 33024, 26986, 22694, 19272, 16232, 14188, 12261, 10335, 8976, 7847, 7131, 6522, 6135, 5974, 6042, 5825, 5869, 5679, 5057, 4605, 3970, 3288, 2840, 2264, 1827, 1534, 1298, 1067, 980, 810, 701, 638, 531, 418, 424, 356, 322, 253, 250, 221, 161, 172, 125, 135, 115, 92, 61, 67, 59, 53, 41, 47, 42, 31, 47, 47, 37, 35, 49, 54, 64, 65, 63, 67, 78, 73, 76, 74, 87, 86, 62, 72, 87, 52, 42, 48, 44, 37, 17, 19, 19, 17, 14, 9, 8, 5, 13, 5, 9, 8, 6, 3, 7, 4, 5, 4, 1, 1, 2, 4, 4, 3, 0, 0, 2, 4, 1, 3, 2, 1, 0, 0, 2, 1, 1, 0, 2, 2, 1, 0, 1, 1, 0, 0, 1, 2, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 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]], "props_type": "histogram", "metadata": {"board": "Slate", "ker": "4.19", "boot_p": "isolcpus", "i": "1000us", "delta": "300us", "prio": "99", "load": "ssh", "duration": "2h17", "qdisc": "etf", "etf_offset": "600us", "route": "switch"}}]}
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measure-analysis/measures/packet_jitter2.json

+{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["jitter"], "units": ["us"], "middle": 324, "props": [[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, 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, 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, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 0, 3, 1, 0, 2, 3, 3, 1, 1, 0, 0, 1, 1, 2, 1, 1, 1, 0, 2, 2, 3, 1, 0, 2, 1, 0, 1, 3, 0, 0, 2, 1, 1, 1, 2, 4, 4, 2, 4, 4, 3, 2, 6, 9, 4, 15, 9, 7, 11, 14, 13, 11, 19, 18, 28, 28, 32, 33, 23, 28, 36, 44, 62, 49, 58, 62, 61, 53, 62, 71, 88, 104, 119, 151, 188, 185, 286, 322, 473, 530, 619, 717, 897, 1083, 1288, 1497, 1754, 2093, 2331, 2816, 3126, 3468, 3914, 4236, 4435, 4728, 4742, 4916, 5278, 5384, 5579, 5942, 6254, 6812, 7316, 7901, 8801, 10073, 11674, 14018, 17125, 21335, 27515, 35669, 46196, 59465, 72515, 84392, 93151, 100588, 109200, 121795, 137451, 151595, 159173, 155606, 143279, 127781, 116037, 112083, 113223, 115559, 114273, 106717, 93734, 77400, 61590, 48906, 39371, 32411, 26454, 21788, 17391, 13562, 11021, 8821, 7303, 6196, 5478, 4728, 4128, 3531, 3176, 2732, 2430, 2271, 2286, 2345, 2620, 2879, 3099, 3365, 3362, 3229, 3106, 2899, 2607, 2355, 2244, 2059, 2015, 2055, 2070, 2116, 2254, 2305, 2294, 2347, 2444, 2446, 2378, 2425, 2450, 2364, 2173, 2110, 2021, 1941, 1796, 1727, 1536, 1470, 1240, 1087, 1052, 851, 731, 577, 513, 414, 370, 256, 215, 152, 150, 98, 88, 71, 59, 56, 46, 46, 40, 33, 49, 37, 39, 34, 36, 47, 41, 38, 32, 40, 48, 27, 41, 47, 49, 39, 33, 38, 27, 29, 28, 20, 18, 16, 18, 9, 14, 8, 14, 3, 7, 8, 5, 6, 3, 9, 5, 5, 1, 3, 1, 1, 3, 3, 4, 2, 2, 2, 1, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0]], "props_type": "histogram", "metadata": {"board": "Slate", "ker": "4.19", "boot_p": "isolcpus", "i": "1000us", "delta": "none", "prio": "99", "load": "ssh", "duration": "0h51", "qdisc": "pfifo_fast", "etf_offset": "none", "route": "switch"}}]}
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