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2025-11-18 - 20:54
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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
Characteristics of the 50 highest latencies:
System rackcslot0.osadl.org (updated Tue Nov 18, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1802121710,8sleep02128999cyclictest23:05:550
2716821660,6sleep92130999cyclictest22:02:0915
1222721220,4sleep22129799cyclictest00:03:118
1619121210,1sleep30-21swapper/320:22:349
206202117103,10sleep140-21swapper/1419:11:386
17209211190,12sleep80-21swapper/819:07:3214
2979421090,1sleep150-21swapper/1522:31:087
20565210987,17sleep90-21swapper/919:11:3315
20568210789,13sleep120-21swapper/1219:11:364
1744221070,1sleep00-21swapper/022:58:420
1742521070,1sleep10961rcuc/1022:51:232
1190721060,0sleep100-21swapper/1021:38:382
20312210597,4sleep30-21swapper/319:08:159
234621040,2sleep121-21systemd21:19:564
234621040,2sleep121-21systemd21:19:564
942821030,2sleep60-21swapper/622:50:3012
653921020,2sleep66533-21sshd23:33:3412
1704621020,8sleep152132299cyclictest22:04:397
129121000,0sleep140-21swapper/1422:49:346
166432990,3sleep52130299cyclictest22:51:1811
218162980,1sleep30-21swapper/323:02:469
178192980,7sleep15138-21ksoftirqd/1522:11:527
1867229778,15sleep00-21swapper/019:07:400
93212920,2sleep61072-21ModemManager21:17:2612
93212920,2sleep61072-21ModemManager21:17:2612
217532910,1sleep621752-21sh22:19:1312
2037029167,19sleep50-21swapper/519:09:0511
79612900,2sleep107959-21sshd23:11:582
43602890,1sleep125-21ksoftirqd/123:11:331
2041228981,4sleep110-21swapper/1119:09:433
48062870,0sleep40-21swapper/400:18:2810
2053228775,8sleep130-21swapper/1319:11:055
120082870,1sleep90-21swapper/920:17:3515
2066928674,8sleep70-21swapper/719:12:1913
2066828672,8sleep60-21swapper/619:12:1812
197992850,0sleep40-21swapper/421:29:1010
164432850,7sleep42130099cyclictest23:45:3410
164432850,7sleep42130099cyclictest23:45:3410
110542850,1sleep92130999cyclictest22:54:0215
2029128472,8sleep10-21swapper/119:07:571
84162830,2sleep151068-21dbus-daemon00:33:547
2041128375,4sleep100-21swapper/1019:09:422
2039828375,4sleep150-21swapper/1519:09:317
2036728372,6sleep20-21swapper/219:09:028
19332810,1sleep20-21swapper/222:27:588
50982800,1sleep20-21swapper/222:17:328
259342800,1sleep50-21swapper/522:09:0211
24452800,0sleep10-21swapper/123:55:091
24452800,0sleep10-21swapper/123:55:091
2040528072,4sleep40-21swapper/419:09:3610
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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