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2024-02-26 - 14:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #3

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot3s (updated Mon Feb 26, 2024 00:50:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15192497476,14sleep20-21swapper/219:09:052
14432494473,15sleep00-21swapper/019:07:590
14942486458,20sleep40-21swapper/419:08:434
15322485465,14sleep60-21swapper/619:09:176
14462485465,14sleep30-21swapper/319:08:023
14912451430,15sleep10-21swapper/119:08:401
13472450424,19sleep50-21swapper/519:06:365
14882333312,15sleep70-21swapper/719:08:387
1295021480,0sleep30-21swapper/321:45:323
2027997775,1cyclictest22635-21cron21:00:004
2027997775,1cyclictest22635-21cron20:59:594
2029997574,0cyclictest28670-21sh00:35:006
2030997271,0cyclictest31061-21cron00:39:597
2030997170,0cyclictest28671-21sh00:35:007
2027996058,1cyclictest23264-21tr21:00:234
202399590,1cyclictest280-21systemd-journal00:35:000
202999563,1cyclictest280-21systemd-journal22:20:016
2024995523,30cyclictest2652-21grep23:40:221
202999547,1cyclictest280-21systemd-journal21:40:016
2023995453,0cyclictest28406-21cron22:20:010
2027995328,24cyclictest22019-21tr19:50:224
202799510,13cyclictest280-21systemd-journal23:15:004
2030995048,1cyclictest11552-21sendmail00:00:007
2030994818,1cyclictest8301-21needreboot21:35:347
202499487,21cyclictest0-21swapper/123:29:071
2024994846,1cyclictest16168-21cpuspeed_turbos20:45:241
2024994846,1cyclictest16168-21cpuspeed_turbos20:45:241
2030994746,0cyclictest21503-21cron00:20:007
202899470,0cyclictest0-21swapper/519:30:005
2026994745,1cyclictest18305-21cpuspeed_turbos23:05:213
2027994644,1cyclictest333-21tr21:20:224
2030994544,0cyclictest16315-21head19:35:587
2029994544,0cyclictest31059-21sh00:40:006
2029994543,1cyclictest25269-21needreboot00:25:386
2029994543,1cyclictest19732-21cpuspeed_turbos19:45:226
2024994523,9cyclictest0-21swapper/122:59:481
2023994543,1cyclictest12501-21cpuspeed_turbos19:30:250
2027994442,1cyclictest13551-21grep22:55:214
2026994442,1cyclictest2604-21grep23:40:223
2024994443,0cyclictest24854-21apt23:20:001
2024994442,1cyclictest6903-21needreboot22:40:341
2029994317,24cyclictest14882-21cpuspeed_turbos19:35:296
2024994342,0cyclictest20662-21tr23:10:241
202699429,22cyclictest0-21swapper/323:35:433
2026994240,1cyclictest31060-21sh00:39:593
2026994240,1cyclictest10517-21strings23:55:373
2025994240,1cyclictest31395-21cpuspeed_turbos22:25:192
2024994240,1cyclictest17109-21tr21:55:221
2023994240,1cyclictest10094-21tr19:25:230
2023994239,2cyclictest27422-21sh21:10:000
2025994140,0cyclictest11554-21basename00:00:002
2025994139,1cyclictest2853-21cpuspeed_turbos21:25:232
202499417,24cyclictest0-21swapper/120:35:491
2024994139,1cyclictest21951-21cpuspeed_turbos22:05:231
2029994038,1cyclictest9796-21cpuspeed_turbos23:55:216
2028994039,0cyclictest10712-21cut21:40:355
2028994026,13cyclictest11208-21grep23:55:525
2026994038,1cyclictest27068-21head21:05:483
2024994039,0cyclictest6954-21sh21:35:001
2024994024,6cyclictest0-21swapper/123:21:351
203099393,19cyclictest0-21swapper/700:10:487
2027993937,1cyclictest15863-21switchtime00:05:514
2026993937,1cyclictest1433-21cpuspeed_turbos22:30:213
202499397,19cyclictest0-21swapper/121:41:091
202499394,19cyclictest0-21swapper/123:09:541
2024993937,1cyclictest8737-21cpuspeed_turbos22:45:211
2023993937,1cyclictest20878-21tr20:55:230
2023993937,1cyclictest20878-21tr20:55:230
2029993836,1cyclictest14707-21cpuspeed_turbos21:50:236
2029993823,14cyclictest31004-21cut23:30:346
2028993837,0cyclictest27950-21cut23:25:205
2028993836,1cyclictest22045-21cut19:50:215
2028993836,1cyclictest1400-21grep23:35:465
2028993831,6cyclictest14734-21grep21:50:235
2028993829,6cyclictest121rcu_sched23:45:505
2026993819,18cyclictest551-21grep20:10:503
2025993837,0cyclictest4055-21turbostat.cron19:15:002
2025993837,0cyclictest22821-21wc00:20:422
2025993836,1cyclictest8805-21tr20:30:222
202599380,36cyclictest0-21swapper/221:35:222
2024993819,9cyclictest0-21swapper/122:50:291
2030993712,24cyclictest10707-21needreboot21:40:357
2029993735,1cyclictest22215-21tr00:20:286
2029993734,1cyclictest5945-21cut21:30:386
2028993736,0cyclictest29280-21tr20:05:245
2028993736,0cyclictest26119-21grep22:15:005
2028993735,1cyclictest339-21cpuspeed_turbos21:20:235
2028993735,1cyclictest2944-21unixbench_multi20:15:495
2028993735,1cyclictest2683-21tr23:40:225
2027993735,1cyclictest6797-21wc22:40:344
2027993735,1cyclictest19227-21head20:50:334
2027993735,1cyclictest19227-21head20:50:334
2027993735,1cyclictest0-21swapper/423:25:444
202799370,1cyclictest0-21swapper/422:25:284
2026993735,1cyclictest22185-21cpuspeed_turbos00:20:283
2026993735,1cyclictest18450-21cpuspeed_turbos20:50:223
2026993735,1cyclictest18450-21cpuspeed_turbos20:50:223
2025993735,1cyclictest23829-21needreboot23:15:322
2025993735,1cyclictest12589-21grep22:50:452
2025993735,1cyclictest0-21swapper/223:35:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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