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2025-12-10 - 01:02
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Note that this system runs a non-RT kernel.
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 rack0slot4.osadl.org (updated Tue Dec 09, 2025 00:46:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22735722360352,5sleep150-21swapper/1519:06:087
22737262358318,32sleep90-21swapper/919:08:1215
22736872355311,14sleep110-21swapper/1119:07:423
22736462352308,14sleep100-21swapper/1019:07:082
22738252346324,14sleep120-21swapper/1219:09:364
22736012344322,14sleep80-21swapper/819:06:3414
22737912343320,15sleep140-21swapper/1419:09:046
22737492343320,15sleep130-21swapper/1319:08:315
22737232342319,15sleep60-21swapper/619:08:0812
22736532341319,14sleep00-21swapper/019:07:140
22736432341318,15sleep70-21swapper/719:07:0613
22702962339316,15sleep40-21swapper/419:05:0910
22702972338315,14sleep50-21swapper/519:05:1011
22737182337316,13sleep10-21swapper/119:08:031
22735352337314,15sleep20-21swapper/219:05:408
22735542336318,11sleep30-21swapper/319:05:579
227425699253253,0cyclictest2350450-21nodev-device-ev20:35:1810
227428499213212,1cyclictest0-21swapper/1220:35:194
227424899179178,1cyclictest2380354-21nodev-device-ev21:10:201
227424899179178,1cyclictest2380354-21nodev-device-ev21:10:201
227427499168168,0cyclictest0-21swapper/921:10:2115
227427499168168,0cyclictest0-21swapper/921:10:2115
227428999990,98cyclictest0-21swapper/1423:50:206
227425499980,98cyclictest0-21swapper/319:15:019
2274254999392,1cyclictest0-21swapper/322:20:189
2274269999190,1cyclictest0-21swapper/819:20:1814
2274289998483,1cyclictest2405962-21nodev-device-ev21:40:196
2274289998382,1cyclictest0-21swapper/1422:40:196
2274266998180,1cyclictest2341913-21nodev-device-ev20:25:2013
2274248997776,1cyclictest0-21swapper/122:55:201
2274293997574,1cyclictest0-21swapper/1523:45:187
2274254996968,1cyclictest0-21swapper/322:10:199
2274274996665,1cyclictest2470004-21nodev-device-ev22:55:2115
2274250996665,1cyclictest2410217-21nodev-device-ev21:45:188
2274293996564,1cyclictest0-21swapper/1522:50:207
2274286996564,1cyclictest0-21swapper/1321:05:195
2274276996564,1cyclictest0-21swapper/1021:45:192
2274266995453,1cyclictest2512683-21nodev-device-ev23:45:1813
2274256995049,1cyclictest2461463-21nodev-device-ev22:45:1910
2274266994544,1cyclictest2465722-21nodev-device-ev22:50:2013
2274250994443,1cyclictest0-21swapper/223:30:198
2274245994343,0cyclictest0-21swapper/020:10:160
2274276994241,1cyclictest2499891-21nodev-device-ev23:30:182
2274250993736,1cyclictest0-21swapper/221:50:178
2274276993635,1cyclictest2414499-21nodev-device-ev21:50:172
2274286993534,1cyclictest2384628-21nodev-device-ev21:15:195
2274286993534,1cyclictest2384628-21nodev-device-ev21:15:195
2274279993428,3cyclictest2300812-21kworker/u32:0+events_unbound20:00:283
2274279993413,8cyclictest0-21swapper/1100:34:083
2274279993413,8cyclictest0-21swapper/1100:34:083
2274279993410,11cyclictest0-21swapper/1120:10:343
227427999339,11cyclictest0-21swapper/1123:39:143
227427999339,11cyclictest0-21swapper/1121:38:243
227427999339,11cyclictest0-21swapper/1119:37:373
2274274993333,0cyclictest0-21swapper/921:23:2815
2274274993333,0cyclictest0-21swapper/921:23:2815
2274248993333,0cyclictest0-21swapper/120:20:011
2274248993332,1cyclictest0-21swapper/123:00:171
2274274993232,0cyclictest0-21swapper/919:57:3615
2274274993232,0cyclictest0-21swapper/919:43:5215
2274248993232,0cyclictest0-21swapper/123:49:431
2274264993130,1cyclictest2418753-21nodev-device-ev21:55:1812
2274250993125,1cyclictest2055-21snmpd21:22:288
2274250993125,1cyclictest2055-21snmpd21:22:288
227427999300,30cyclictest0-21swapper/1121:10:203
227427999300,30cyclictest0-21swapper/1121:10:203
2274274993030,0cyclictest0-21swapper/920:42:0815
2274250993026,1cyclictest2055-21snmpd00:00:508
2274289992926,3cyclictest2055-21snmpd21:33:306
2274284992926,3cyclictest2055-21snmpd19:31:554
227427999290,26cyclictest0-21swapper/1123:50:383
227427999290,26cyclictest0-21swapper/1123:16:043
227427999290,26cyclictest0-21swapper/1122:48:203
227427999290,26cyclictest0-21swapper/1122:25:073
227427999290,26cyclictest0-21swapper/1100:08:223
2274276992926,3cyclictest2055-21snmpd20:28:432
227427499290,29cyclictest2440082-21daemon-init22:20:1915
2274269992923,3cyclictest0-21swapper/820:50:1714
227429399280,27cyclictest0-21swapper/1523:35:157
227428999280,27cyclictest0-21swapper/1400:36:136
227428699280,27cyclictest0-21swapper/1322:39:075
227428699280,27cyclictest0-21swapper/1320:57:025
227428699280,27cyclictest0-21swapper/1320:21:565
227428699280,27cyclictest0-21swapper/1300:30:175
227428699280,27cyclictest0-21swapper/1300:30:175
2274284992826,2cyclictest0-21swapper/1219:50:404
2274279992823,3cyclictest0-21swapper/1122:40:383
2274279992823,3cyclictest0-21swapper/1121:03:083
2274279992823,2cyclictest0-21swapper/1123:40:363
2274279992823,2cyclictest0-21swapper/1123:33:563
2274279992823,2cyclictest0-21swapper/1123:20:023
2274279992823,2cyclictest0-21swapper/1123:05:403
2274279992823,2cyclictest0-21swapper/1122:55:503
2274279992823,2cyclictest0-21swapper/1120:51:083
2274279992823,2cyclictest0-21swapper/1119:30:143
2274279992823,2cyclictest0-21swapper/1100:21:413
2274279992823,2cyclictest0-21swapper/1100:21:413
227427999280,26cyclictest0-21swapper/1123:26:363
227427999280,26cyclictest0-21swapper/1122:16:053
227427999280,26cyclictest0-21swapper/1121:57:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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