Commit 2d15c9bb authored by Joanne Hugé's avatar Joanne Hugé

Add quick 4.19-debian packet jitter measures with 1000Mb/s

parent 56f8d2df
......@@ -367,6 +367,7 @@ class MeasureSet:
'delta': 'ETF qdisc delta',
'load': 'Device and processor load',
'duration': 'Test duration',
'speed': 'Ethernet speed in Mb/s',
}
metadata_descriptions = {
......@@ -423,6 +424,7 @@ class MeasureSet:
self.metadata['qdisc'] = "pfifo_fast"
self.metadata['etf_offset'] = "none"
self.metadata['route'] = "switch"
self.metadata['speed'] = "100"
self.props = []
self.props_name = []
......
......@@ -23,7 +23,7 @@ Measures measuring the same propriety are grouped together in tables and graphs,
Uses cyclictest from the rt-tests test suite to measure wake-up latency. A real-time thread is run on CPU1, and wakes up at a regular interval (specified by the interval parameter) using clock_nanosleep. It then uses clock_gettime and computes the difference between the scheduled wake-up time and the effective wake-up time measured by clock_gettime. The command used is: cyclictest -p `prio` -a1 -t1 -n -h 200 -q -i `interval`
**Common test metadata:** Boot Parameters: isolcpus, Task priority: 99, qdisc: pfifo_fast, etf_offset: none, route: switch
**Common test metadata:** Boot Parameters: isolcpus, Task priority: 99, qdisc: pfifo_fast, etf_offset: none, route: switch, Ethernet speed in Mb/s: 100
Metadata | Minimum | Maximum | Average | Standard deviation
------------------------------------------------------- | ------------------- | ------------------- | ------------------- | -------------------
......@@ -47,7 +47,7 @@ Metadata | Minimum |
An UDP packet is periodically sent from one board to another and sent back as soon as it arrives using a real time thread. The round trip time is computed with clock_gettime on the transmitting board.
**Common test metadata:** Linux kernel version: 4.19-debian, Boot Parameters: isolcpus, Interval: 10000us, ETF qdisc delta: 200us, Task priority: 99, Device and processor load: ssh, Test duration: 0h4, qdisc: pfifo_fast, etf_offset: none, route: switch
**Common test metadata:** Linux kernel version: 4.19-debian, Boot Parameters: isolcpus, Interval: 10000us, ETF qdisc delta: 200us, Task priority: 99, Device and processor load: ssh, Test duration: 0h4, qdisc: pfifo_fast, etf_offset: none, route: switch, Ethernet speed in Mb/s: 100
Minimum | Maximum | Average | Standard deviation | Lost packets
---------- | ---------- | ---------- | ------------------ | ------------
......@@ -60,15 +60,20 @@ Minimum | Maximum | Average | Standard deviation | Lost packets
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:** Boot Parameters: isolcpus, Interval: 1000us, Task priority: 99, Device and processor load: ssh, route: switch
**Common test metadata:** Boot Parameters: isolcpus, Interval: 1000us, Task priority: 99, Device and processor load: ssh
Metadata | Minimum | Maximum | Average | Standard deviation | Lost packets
--------------------------------------------------- | ----------- | ---------- | ---------- | ------------------ | ------------
**delta, duration, qdisc, etf_offset, ker** | **jitter** | **jitter** | **jitter** | **jitter** |
none, 0h51, pfifo_fast, none, 4.19-debian (3077562) | -324.0000us | 162.0000us | 8.5575us | 13.0667us | 0
160us, 16h43, etf, 600us, 5.6-custom (60200401) | -500.0000us | 483.0000us | 5.2553us | 8.1791us | 0
160us, 16h38, etf, 600us, 4.19-custom (59917045) | -382.0000us | 248.0000us | 5.7003us | 8.3437us | 0
160us, 16h18, etf, 500us, 4.19-debian (58719959) | -198.0000us | 182.0000us | 10.5478us | 13.0301us | 7
---------------------------------------------------------------- | ----------- | ---------- | ---------- | ------------------ | ------------
**delta, duration, qdisc, etf_offset, ker, route, speed** | **jitter** | **jitter** | **jitter** | **jitter** |
none, 0h51, pfifo_fast, none, 4.19-debian, switch, 100 (3077562) | -324.0000us | 162.0000us | 8.5575us | 13.0667us | 0
160us, 16h43, etf, 600us, 5.6-custom, switch, 100 (60200401) | -500.0000us | 483.0000us | 5.2553us | 8.1791us | 0
160us, 16h38, etf, 600us, 4.19-custom, switch, 100 (59917045) | -382.0000us | 248.0000us | 5.7003us | 8.3437us | 0
160us, 0h5, etf, 500us, 4.19-debian, E2E, 1000 (300154) | -167.0000us | 178.0000us | 8.1353us | 11.0959us | 0
160us, 0h5, etf, 500us, 4.19-debian, E2E, 100 (317272) | -172.0000us | 161.0000us | 10.6352us | 13.5693us | 0
160us, 0h42, etf, 500us, 4.19-debian, E2E, 100 (2553803) | -190.0000us | 215.0000us | 9.2664us | 12.0520us | 0
160us, 1h4, etf, 600, 4.19-debian, E2E, 1000 (3846039) | -206.0000us | 230.0000us | 9.4174us | 12.1711us | 3
160us, 16h18, etf, 500us, 4.19-debian, switch, 100 (58719959) | -198.0000us | 182.0000us | 10.5478us | 13.0301us | 7
none, 1h11, pfifo_fast, none, 4.19-debian, E2E, 1000 (4295445) | -301.0000us | 204.0000us | 7.0618us | 10.0641us | 7
![alt text](measures/graphs/packet_jitterjitter.png "packet_jitter Graph")
......@@ -76,7 +81,7 @@ none, 0h51, pfifo_fast, none, 4.19-debian (3077562) | -324.0000us | 162.0000us |
An UDP packet is periodically sent from one board to another using a real time thread. The receiving board uses the SO_TIMESTAMPING option to see when the packet entered the kernel, and generates timestamps with clock_gettime once the packets enters userspace to compute the time the packet spent in kernel space.
**Common test metadata:** Linux kernel version: 4.19-debian, Boot Parameters: isolcpus, Interval: 1000us, ETF qdisc delta: 160us, Task priority: 99, Device and processor load: ssh, Test duration: 0h59, qdisc: etf, etf_offset: 600us, route: switch
**Common test metadata:** Linux kernel version: 4.19-debian, Boot Parameters: isolcpus, Interval: 1000us, ETF qdisc delta: 160us, Task priority: 99, Device and processor load: ssh, Test duration: 0h59, qdisc: etf, etf_offset: 600us, route: switch, Ethernet speed in Mb/s: 100
Minimum | Maximum | Average | Standard deviation | Lost packets
---------------- | ---------------- | ---------------- | ------------------ | ------------
......
{"cyclictest_wake-up_latency": {"ids": [26, 28, 36, 53, 54, 55, 62, 63, 64, 65, 66, 67], "next_id": 68}, "packet_rtt": {"ids": [0], "next_id": 1}, "packet_jitter": {"ids": [2, 4, 5, 7], "next_id": 8}, "packet_recv_timestamps": {"ids": [0], "next_id": 1}}
\ No newline at end of file
{"cyclictest_wake-up_latency": {"ids": [26, 28, 36, 53, 54, 55, 62, 63, 64, 65, 66, 67], "next_id": 68}, "packet_rtt": {"ids": [0], "next_id": 1}, "packet_jitter": {"ids": [2, 4, 5, 7, 8, 9, 10, 11, 12], "next_id": 13}, "packet_recv_timestamps": {"ids": [0], "next_id": 1}}
\ No newline at end of file
{"measure_sets": [{"measure_type": "packet_jitter", "props_names": ["jitter"], "units": ["us"], "middle": 190, "props": [[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 2, 0, 1, 0, 1, 1, 1, 1, 2, 0, 2, 1, 0, 0, 3, 0, 1, 2, 1, 1, 1, 0, 3, 2, 4, 2, 3, 2, 3, 0, 6, 3, 4, 0, 5, 3, 4, 3, 5, 5, 6, 7, 7, 6, 13, 14, 4, 15, 10, 12, 11, 6, 11, 9, 17, 18, 14, 20, 14, 21, 14, 21, 29, 26, 32, 38, 42, 61, 71, 102, 153, 176, 231, 320, 451, 585, 705, 933, 1082, 1316, 1431, 1527, 1555, 1467, 1369, 1264, 1177, 1143, 1094, 1151, 1411, 1454, 1751, 2083, 2435, 2854, 3327, 3942, 4929, 6275, 8149, 10828, 14525, 19703, 27216, 36911, 50496, 66594, 82485, 96848, 103535, 101640, 90079, 73735, 56729, 44114, 39018, 41101, 50344, 64554, 80219, 95672, 108162, 116599, 119081, 114150, 103331, 88499, 70612, 54407, 41613, 34345, 33846, 35765, 39561, 41895, 41227, 37324, 31010, 23818, 17342, 12008, 8658, 6890, 5857, 5231, 4739, 4302, 3795, 3626, 3241, 3061, 2771, 2527, 2195, 1846, 1595, 1352, 1231, 1218, 1227, 1260, 1420, 1476, 1640, 1607, 1611, 1532, 1332, 1140, 971, 744, 618, 536, 449, 403, 329, 287, 214, 181, 134, 136, 84, 68, 64, 60, 41, 28, 40, 42, 29, 43, 25, 22, 19, 18, 24, 19, 14, 17, 15, 15, 14, 14, 16, 15, 18, 13, 3, 10, 11, 6, 12, 8, 5, 10, 1, 6, 3, 6, 5, 6, 6, 7, 5, 5, 4, 2, 5, 1, 3, 4, 5, 3, 3, 4, 1, 2, 1, 1, 1, 1, 0, 1, 2, 2, 1, 0, 1, 0, 2, 0, 2, 0, 1, 0, 3, 1, 1, 0, 0, 0, 0, 0, 2, 0, 0, 2, 1, 0, 1, 2, 1, 1, 1, 0, 2, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 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, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]], "props_type": "histogram", "metadata": {"board": "Emerald", "ker": "4.19-debian", "boot_p": "isolcpus", "i": "1000us", "delta": "160us", "prio": "99", "load": "ssh", "duration": "0h42", "qdisc": "etf", "etf_offset": "500us", "route": "E2E", "speed": "100", "lost_packets": "0"}}]}
\ No newline at end of file
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\ No newline at end of file
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\ No newline at end of file
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\ No newline at end of file
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