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2023-01-31 - 10:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Intel

x86 Intel Atom D510 @1667 MHz, Linux 3.12.61-rt81 (Profile)

Latency plot of shadow in rack #1, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Tue Jan 31, 2023 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2345991010,5rtkit-daemon2344-21rtkit-daemon19:40:243
2345991010,5rtkit-daemon2344-21rtkit-daemon19:40:243
467799984,9cyclictest25745-21unixbench_multi23:10:312
467799984,9cyclictest25745-21unixbench_multi23:10:312
467799974,70cyclictest0-21swapper/223:35:212
467799935,12cyclictest0-21swapper/222:30:122
467799935,12cyclictest0-21swapper/222:30:122
467799934,13cyclictest0-21swapper/221:20:262
467799924,12cyclictest0-21swapper/221:00:332
4677999215,69cyclictest27406-21cpuspeed_turbos00:25:092
467799914,12cyclictest0-21swapper/223:19:542
4677999114,50cyclictest0-21swapper/219:20:172
467799905,78cyclictest0-21swapper/219:42:102
467799905,78cyclictest0-21swapper/219:42:102
467799904,13cyclictest0-21swapper/221:40:222
467799894,61cyclictest12544-21tail21:35:332
467799894,13cyclictest0-21swapper/219:50:232
467799894,12cyclictest0-21swapper/222:11:122
467799894,12cyclictest0-21swapper/220:54:592
467799894,12cyclictest0-21swapper/200:30:342
467799885,63cyclictest0-21swapper/220:20:192
467799884,62cyclictest0-21swapper/200:22:372
467799884,56cyclictest0-21swapper/219:35:382
467799884,12cyclictest0-21swapper/223:25:202
467799884,12cyclictest0-21swapper/222:50:352
467799884,12cyclictest0-21swapper/222:25:132
467799884,11cyclictest0-21swapper/200:00:152
4677998822,44cyclictest0-21swapper/219:15:362
467799875,11cyclictest1199-21runrttasks20:49:092
467799874,9cyclictest21461-21basename23:04:542
467799874,61cyclictest0-21swapper/219:33:462
467799874,12cyclictest0-21swapper/223:46:202
467799874,12cyclictest0-21swapper/220:40:192
467799864,59cyclictest0-21swapper/220:31:542
467799864,13cyclictest0-21swapper/223:57:292
467799864,13cyclictest0-21swapper/223:57:292
467799864,13cyclictest0-21swapper/222:20:342
467799864,12cyclictest0-21swapper/222:05:342
234599860,7rtkit-daemon0-21swapper/222:35:172
234599860,5rtkit-daemon2344-21rtkit-daemon20:23:303
467799854,64cyclictest0-21swapper/221:50:142
467799854,64cyclictest0-21swapper/221:50:142
467799854,64cyclictest0-21swapper/200:10:142
467799854,12cyclictest0-21swapper/221:25:252
467799854,12cyclictest0-21swapper/219:10:362
4677998520,42cyclictest0-21swapper/200:15:252
467799844,63cyclictest1199-21runrttasks20:00:372
467799844,57cyclictest0-21swapper/222:56:422
467799844,13cyclictest0-21swapper/223:54:402
467799844,12cyclictest0-21swapper/221:14:592
467799843,13cyclictest0-21swapper/222:16:442
4677998418,47cyclictest0-21swapper/220:26:242
4677998418,47cyclictest0-21swapper/220:26:242
4677998416,61cyclictest0-21swapper/221:59:572
4677998412,11cyclictest0-21swapper/220:35:372
467799834,55cyclictest0-21swapper/221:19:432
467799834,12cyclictest0-21swapper/223:07:342
467799834,12cyclictest0-21swapper/222:44:532
467799834,12cyclictest0-21swapper/220:10:302
467799834,12cyclictest0-21swapper/200:05:392
467799834,11cyclictest0-21swapper/222:45:012
467799823,12cyclictest0-21swapper/221:06:062
467799823,12cyclictest0-21swapper/221:06:062
467799814,61cyclictest0-21swapper/220:56:432
467799814,12cyclictest0-21swapper/223:40:402
467799814,12cyclictest0-21swapper/221:48:342
467799813,13cyclictest0-21swapper/220:17:552
4677998012,51cyclictest0-21swapper/222:00:152
4677998012,50cyclictest3143-21crond20:10:002
199942800,7sleep319998-21cut19:35:293
467799794,11cyclictest0-21swapper/223:24:042
467799784,57cyclictest0-21swapper/219:45:162
467799784,10cyclictest11115-21crond21:34:572
234599780,4rtkit-daemon2344-21rtkit-daemon19:12:103
467799774,12cyclictest0-21swapper/223:32:252
467799764,12cyclictest0-21swapper/219:55:362
467799764,12cyclictest0-21swapper/219:09:382
467799755,10cyclictest102350irq/46-eth019:27:562
467799734,62cyclictest4657-21munin-run19:05:042
4676996120,22cyclictest0-21swapper/122:30:241
4676996120,22cyclictest0-21swapper/122:30:241
234599590,5rtkit-daemon0-21swapper/219:50:243
296452583,47sleep129684-21hwlatdetect23:20:181
467699575,35cyclictest0-21swapper/122:07:091
467299574,46cyclictest0-21swapper/022:40:120
4672995734,8cyclictest20576-21munin-run21:54:570
4672995734,8cyclictest20576-21munin-run21:54:570
234599570,4rtkit-daemon2344-21rtkit-daemon20:37:073
314692564,46sleep10-21swapper/121:08:551
314692564,46sleep10-21swapper/121:08:551
246812563,45sleep10-21swapper/100:19:521
234599560,5rtkit-daemon2344-21rtkit-daemon23:34:520
156492563,45sleep00-21swapper/020:35:250
53172558,40sleep30-21swapper/320:12:303
467699553,25cyclictest0-21swapper/100:10:271
4676995523,12cyclictest0-21swapper/121:40:311
234599550,5rtkit-daemon2344-21rtkit-daemon23:50:140
234599550,5rtkit-daemon2344-21rtkit-daemon23:15:310
234599550,5rtkit-daemon2344-21rtkit-daemon23:04:090
234599550,5rtkit-daemon2344-21rtkit-daemon22:57:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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