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2025-05-09 - 05:51

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
Click here to display the system's profile data.
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 rackeslot8s.osadl.org (updated Fri May 09, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132034899754750,3cyclictest1428499-21kworker/3:1+events21:18:273
132034899753749,3cyclictest1510358-21kworker/3:0+events21:55:413
132034899752748,3cyclictest1334459-21kworker/3:1+events19:22:463
132034299752748,3cyclictest1571791-21kworker/1:1+events22:30:211
132034899749745,3cyclictest1428499-21kworker/3:1+events20:57:523
132034899749745,3cyclictest1428499-21kworker/3:1+events20:57:523
132034899747743,3cyclictest1510358-21kworker/3:0+events23:46:033
132034899747742,4cyclictest1372259-21kworker/3:1+events19:54:053
132034899746742,3cyclictest1697040-21kworker/3:2+events00:12:213
132034899745741,3cyclictest1510358-21kworker/3:0+events23:19:063
132034899745741,3cyclictest1397388-21kworker/3:2+events20:16:163
132034899745741,3cyclictest1359762-21kworker/3:2+events19:43:123
132034899745741,3cyclictest1334459-21kworker/3:1+events19:37:063
132034299745741,3cyclictest1571791-21kworker/1:1+events22:56:481
132034899744740,3cyclictest1510358-21kworker/3:0+events23:14:553
132034899744740,3cyclictest1428499-21kworker/3:1+events21:02:413
132034299744740,3cyclictest1615891-21kworker/1:0+events00:05:211
132034299744736,4cyclictest1571791-21kworker/1:1+events22:49:201
132034899743739,3cyclictest1697040-21kworker/3:2+events00:21:033
132034899743739,3cyclictest1671738-21kworker/3:2+events23:51:143
132034899743739,3cyclictest1510358-21kworker/3:0+events22:12:523
132034899743739,3cyclictest1428499-21kworker/3:1+events20:38:033
132034899743739,3cyclictest1372259-21kworker/3:1+events19:57:533
132034899743739,3cyclictest1334459-21kworker/3:1+events19:30:523
132034899743738,4cyclictest1678220-21kworker/3:1+events23:58:233
132034899743738,4cyclictest1466250-21kworker/3:0+events21:09:063
132034899742738,3cyclictest1510358-21kworker/3:0+events23:44:273
132034899742738,3cyclictest1510358-21kworker/3:0+events23:26:223
132034899742738,3cyclictest1510358-21kworker/3:0+events22:09:433
132034899742737,4cyclictest1697040-21kworker/3:2+events00:15:303
132034299742738,3cyclictest1615891-21kworker/1:0+events00:00:541
132034899741737,3cyclictest1428499-21kworker/3:1+events20:42:183
132034899740736,3cyclictest3413334-21kworker/3:2+events19:13:033
132034899740735,4cyclictest1428499-21kworker/3:1+events21:43:253
132034899740735,4cyclictest1428499-21kworker/3:1+events20:45:213
132034299740736,3cyclictest1571791-21kworker/1:1+events23:05:431
132034299740736,3cyclictest1571791-21kworker/1:1+events22:52:441
132034299740736,3cyclictest1428889-21kworker/1:2+events22:25:211
132034899739735,3cyclictest1697040-21kworker/3:2+events00:28:203
132034899739735,3cyclictest1510358-21kworker/3:0+events23:36:483
132034899739735,3cyclictest1428499-21kworker/3:1+events21:47:533
132034299739735,3cyclictest1571791-21kworker/1:1+events22:36:151
132034299739734,4cyclictest1609431-21turbostat23:04:551
132034899738734,3cyclictest1510358-21kworker/3:0+events23:22:423
132034899738734,3cyclictest1428499-21kworker/3:1+events20:54:103
132034899737733,3cyclictest3413334-21kworker/3:2+events19:17:073
132034899736733,2cyclictest1397388-21kworker/3:2+events20:27:193
132034899736732,3cyclictest1510358-21kworker/3:0+events21:51:373
132034899736732,3cyclictest1397388-21kworker/3:2+events20:12:423
132034299736731,4cyclictest1571791-21kworker/1:1+events22:40:431
132034899734730,3cyclictest1510358-21kworker/3:0+events23:34:133
132034899733729,3cyclictest1428499-21kworker/3:1+events21:12:013
132034899733729,3cyclictest1409894-21turbostat20:24:553
132034899733729,3cyclictest1372259-21kworker/3:1+events20:09:293
132034899732728,3cyclictest1510358-21kworker/3:0+events23:04:413
132034899731726,4cyclictest1397388-21kworker/3:2+events20:34:513
132034299730726,3cyclictest1428889-21kworker/1:2+events22:20:431
132034899729726,2cyclictest1428499-21kworker/3:1+events21:22:533
132033899726721,4cyclictest1485206-21turbostat21:24:560
132034899725721,3cyclictest1372259-21kworker/3:1+events20:01:293
132033899721718,2cyclictest1491142-21kworker/0:2+events21:26:040
132033899715711,3cyclictest1491142-21kworker/0:2+events21:34:290
132034899704701,2cyclictest1690814-21turbostat00:09:553
132034899699695,3cyclictest1334459-21kworker/3:1+events19:28:423
132034899696690,5cyclictest1510358-21kworker/3:0+events22:17:203
132034299694687,6cyclictest1553485-21turbostat22:19:551
132034899691688,2cyclictest1697040-21kworker/3:2+events00:30:233
132034899685683,1cyclictest1510358-21kworker/3:0+events22:03:133
132033899682676,4cyclictest1491142-21kworker/0:2+events21:36:490
132034299679677,1cyclictest1678321-21turbostat23:59:551
132034899678674,3cyclictest1615651-21turbostat23:09:553
132034899664660,3cyclictest1359762-21kworker/3:2+events19:45:213
132034899643638,4cyclictest1697040-21kworker/3:2+events00:35:213
132034899623620,2cyclictest1603197-21turbostat22:59:553
132034899602598,3cyclictest1503854-21turbostat21:39:563
17079302240,1sleep20-21swapper/200:15:212
1320346992320,2cyclictest0-21swapper/200:00:002
1320346992319,3cyclictest1690831-21systemd-run00:05:012
1320346992219,2cyclictest1603198-21munin-plugin-st22:55:002
1320346992017,2cyclictest1672015-21latency_hist23:50:012
1320346992017,2cyclictest1535653-21irqcore22:00:182
1320346991915,2cyclictest0-21swapper/220:10:002
1320338991916,2cyclictest1620905-21needreboot23:05:200
15224802180,8sleep10-21swapper/121:50:011
1320346991815,2cyclictest502-21systemd-logind20:40:012
1320346991814,2cyclictest0-21swapper/221:20:002
132034299183,2cyclictest191rcu_preempt23:15:221
1320342991815,2cyclictest1485947-21sed21:20:181
1320338991814,2cyclictest0-21swapper/023:20:000
1320348991714,2cyclictest1589962-21ntp_kernel_pll_22:40:213
1320348991711,4cyclictest1565699-21sshd22:22:183
1320346991714,2cyclictest523-21gdbus00:10:002
1320346991714,2cyclictest1428983-21latency_hist20:35:012
1320346991714,2cyclictest0-21swapper/222:10:002
1320342991714,2cyclictest1523127-21gltestperf21:50:181
1320342991714,2cyclictest1460469-21cpuspeed_turbos21:00:141
1320342991714,2cyclictest1357037-21kthreadcore19:35:181
132034299170,16cyclictest0-21swapper/120:55:001
132033899174,11cyclictest3614154-21systemd-journal22:39:590
1320338991714,2cyclictest502-21systemd-logind23:31:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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