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2026-07-15 - 04:24
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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 rack0slot5.osadl.org (updated Wed Jul 15, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26804629955736,520cyclictest0-21swapper/519:59:1911
26804859952924,44cyclictest0-21swapper/1119:59:193
268046699523522,1cyclictest3704729-21kworker/6:0+i915-unordered19:18:1912
2680503995065,499cyclictest0-21swapper/1500:32:187
2680503995065,499cyclictest0-21swapper/1500:32:187
26804609950033,466cyclictest0-21swapper/419:08:1910
26804609950033,466cyclictest0-21swapper/419:08:1910
26804859947710,28cyclictest0-21swapper/1122:54:183
268044399476446,30cyclictest0-21swapper/021:37:180
2680477994741,59cyclictest0-21swapper/920:08:1815
26804859947123,29cyclictest0-21swapper/1120:16:403
26804859947117,452cyclictest0-21swapper/1119:18:193
26804859947022,29cyclictest0-21swapper/1120:06:413
26804479947017,30cyclictest0-21swapper/121:17:411
268048099468436,30cyclictest0-21swapper/1020:52:182
26804859946718,447cyclictest0-21swapper/1120:02:033
26804919946620,29cyclictest0-21swapper/1221:37:024
26804859946620,29cyclictest0-21swapper/1100:35:013
26804859946620,29cyclictest0-21swapper/1100:35:013
26804479946618,29cyclictest0-21swapper/119:42:041
26804479946617,29cyclictest0-21swapper/122:19:411
26804479946517,29cyclictest0-21swapper/122:45:411
26804479946415,29cyclictest0-21swapper/122:49:021
26804479946316,29cyclictest0-21swapper/119:40:401
268044399463462,1cyclictest0-21swapper/019:27:190
2680451994620,3cyclictest0-21swapper/219:27:308
26804919946116,59cyclictest0-21swapper/1221:08:184
26804859946122,438cyclictest0-21swapper/1123:29:183
268047799461459,2cyclictest2694497-21kworker/9:0+i915-unordered19:37:1915
268047599461459,2cyclictest2394571-21kworker/8:2+i915-unordered19:27:1914
268049599460429,31cyclictest0-21swapper/1320:24:195
268047099455455,0cyclictest0-21swapper/719:10:1913
268047099455455,0cyclictest0-21swapper/719:10:1913
268047799454453,1cyclictest2916638-21kworker/9:1+i915-unordered23:34:1815
2680462994527,444cyclictest0-21swapper/519:48:1911
268049199450448,2cyclictest2644475-21kworker/12:4+i915-unordered19:08:194
268049199450448,2cyclictest2644475-21kworker/12:4+i915-unordered19:08:194
2680475994503,29cyclictest0-21swapper/820:25:0214
268049999449446,3cyclictest1818-21snmpd21:08:146
26804919944822,424cyclictest0-21swapper/1220:06:044
2680447994480,30cyclictest0-21swapper/122:01:411
26805039944727,418cyclictest0-21swapper/1521:12:417
2680491994476,29cyclictest0-21swapper/1219:42:194
26804919944722,29cyclictest0-21swapper/1222:29:414
26804779944726,420cyclictest0-21swapper/920:13:1815
268046699447446,1cyclictest0-21swapper/621:08:1412
2680447994471,30cyclictest0-21swapper/120:26:411
26805039944626,419cyclictest0-21swapper/1520:51:037
26805039944622,29cyclictest0-21swapper/1520:23:407
26804859944619,426cyclictest2839176-21kworker/11:0+i915-unordered22:44:183
26804919944520,28cyclictest0-21swapper/1222:02:414
268046099445444,1cyclictest1818-21snmpd20:50:3210
26804479944518,30cyclictest0-21swapper/122:34:011
26805039944426,417cyclictest0-21swapper/1521:54:017
26805039944426,417cyclictest0-21swapper/1521:54:017
26804919944420,29cyclictest0-21swapper/1221:49:414
26804919944420,29cyclictest0-21swapper/1221:49:414
26804919944419,29cyclictest0-21swapper/1219:18:044
2680485994443,28cyclictest0-21swapper/1119:53:193
2680447994444,29cyclictest0-21swapper/120:07:181
26805039944317,29cyclictest0-21swapper/1521:07:027
26804859944318,29cyclictest0-21swapper/1123:50:413
268047599443442,1cyclictest2812593-21kworker/8:2+i915-unordered21:37:1814
268045199443441,2cyclictest0-21swapper/222:54:188
26804479944318,30cyclictest0-21swapper/121:58:021
26804479944318,30cyclictest0-21swapper/121:58:021
26804919944217,30cyclictest0-21swapper/1220:22:414
26804859944216,30cyclictest0-21swapper/1122:15:023
26804859944216,30cyclictest0-21swapper/1120:31:043
26804479944217,29cyclictest0-21swapper/100:30:401
26804959944145,395cyclictest2829025-21ntp_states21:51:395
26804959944145,395cyclictest2829025-21ntp_states21:51:395
26804919944120,419cyclictest0-21swapper/1222:53:394
26804859944117,29cyclictest0-21swapper/1121:32:043
26804479944118,28cyclictest0-21swapper/123:12:411
26804919944015,29cyclictest0-21swapper/1221:31:424
26804959943912,30cyclictest0-21swapper/1322:35:025
26804919943916,30cyclictest0-21swapper/1220:34:034
26804859943914,30cyclictest0-21swapper/1122:18:023
26804859943914,29cyclictest0-21swapper/1122:24:023
268044399439439,0cyclictest0-21swapper/019:17:190
26804919943819,417cyclictest0-21swapper/1222:33:394
26804919943819,417cyclictest0-21swapper/1220:18:024
26804859943812,29cyclictest0-21swapper/1100:10:043
26804479943820,416cyclictest0-21swapper/121:30:031
26804859943712,29cyclictest0-21swapper/1123:44:023
26804859943712,29cyclictest0-21swapper/1122:05:403
268044399437436,1cyclictest0-21swapper/023:26:410
26804959943623,413cyclictest0-21swapper/1319:45:195
268046099436436,0cyclictest2759942-21kworker/4:1+i915-unordered20:40:1910
268046099435434,1cyclictest0-21swapper/421:23:1910
268045699435433,1cyclictest69750irq/159-i91519:08:199
268045699435433,1cyclictest69750irq/159-i91519:08:199
26804479943518,415cyclictest0-21swapper/122:25:021
26804859943415,417cyclictest0-21swapper/1121:29:413
268047099432431,1cyclictest1818-21snmpd23:50:3013
268049599431428,2cyclictest2707132-21kworker/13:1+i915-unordered19:59:195
26804859943012,418cyclictest0-21swapper/1121:59:043
26804859943012,418cyclictest0-21swapper/1121:59:043
26804809943013,30cyclictest0-21swapper/1023:58:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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