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2025-11-28 - 15:06
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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 Fri Nov 28, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19058869947927,30cyclictest0-21swapper/621:47:5912
1905879994600,459cyclictest0-21swapper/421:58:5710
190591699458458,0cyclictest0-21swapper/1322:20:595
1905865994589,29cyclictest0-21swapper/022:54:580
1905865994589,29cyclictest0-21swapper/022:54:580
1905865994526,30cyclictest0-21swapper/023:52:230
190588299450447,2cyclictest2037764-21kworker/u64:2+events_unbound21:58:5711
19059129944723,0cyclictest0-21swapper/1220:17:574
19059129944422,419cyclictest0-21swapper/1220:42:234
19058719944315,30cyclictest0-21swapper/200:19:218
19059129944221,419cyclictest0-21swapper/1219:41:234
19058979944221,420cyclictest0-21swapper/900:33:2315
19059169944122,419cyclictest0-21swapper/1300:09:575
19059129944118,422cyclictest0-21swapper/1219:54:214
19058659943911,30cyclictest0-21swapper/019:52:210
19059169943818,419cyclictest0-21swapper/1320:31:225
19059169943816,421cyclictest0-21swapper/1320:13:225
19059059943818,418cyclictest0-21swapper/1122:46:233
19058719943711,29cyclictest0-21swapper/223:12:238
19059169943614,421cyclictest0-21swapper/1323:44:575
190588999436430,5cyclictest3682525-21snmpd23:23:1113
19059129943414,0cyclictest0-21swapper/1219:37:214
19058759943415,419cyclictest0-21swapper/323:04:579
19059229943318,414cyclictest0-21swapper/1522:38:597
19058869943212,419cyclictest0-21swapper/620:54:5812
19058979943111,419cyclictest0-21swapper/900:21:2215
19058979943110,421cyclictest0-21swapper/923:49:2215
1905886994299,419cyclictest0-21swapper/620:49:5812
190590099428428,0cyclictest0-21swapper/1021:57:112
1905897994285,419cyclictest0-21swapper/922:29:5815
1905886994276,419cyclictest0-21swapper/600:32:5812
1905886994275,421cyclictest0-21swapper/623:09:2312
1905886994275,421cyclictest0-21swapper/622:12:5912
1905916994264,419cyclictest0-21swapper/1320:34:585
1905886994265,420cyclictest0-21swapper/600:10:5812
1905871994260,28cyclictest0-21swapper/223:06:588
1905886994254,419cyclictest0-21swapper/622:23:2212
1905919994245,419cyclictest0-21swapper/1421:44:576
19059059942425,396cyclictest0-21swapper/1121:02:233
19058899942423,400cyclictest0-21swapper/723:56:5713
1905886994246,416cyclictest0-21swapper/621:42:5812
1905886994244,418cyclictest0-21swapper/619:41:5912
19058869942424,397cyclictest0-21swapper/622:28:5912
1905912994233,417cyclictest0-21swapper/1220:10:584
19059059942324,398cyclictest0-21swapper/1123:34:213
1905897994234,418cyclictest0-21swapper/920:58:5715
1905897994233,418cyclictest0-21swapper/923:00:5715
1905897994233,418cyclictest0-21swapper/923:00:5715
1905897994230,422cyclictest0-21swapper/922:56:5715
1905897994230,422cyclictest0-21swapper/922:56:5715
190591699422419,2cyclictest1941450-21kworker/13:0+events20:07:215
190591699422419,2cyclictest1941450-21kworker/13:0+events20:07:215
1905912994222,420cyclictest0-21swapper/1220:02:584
1905912994222,420cyclictest0-21swapper/1220:02:584
1905912994221,420cyclictest0-21swapper/1222:30:234
1905912994220,419cyclictest0-21swapper/1223:15:594
1905897994222,420cyclictest0-21swapper/900:00:5815
19058979942223,398cyclictest0-21swapper/921:03:5915
1905897994222,0cyclictest0-21swapper/920:15:2215
1905897994221,420cyclictest0-21swapper/921:41:5815
1905912994212,419cyclictest0-21swapper/1222:09:214
1905897994212,418cyclictest0-21swapper/922:49:2315
19059129942023,397cyclictest0-21swapper/1221:37:234
1905912994200,417cyclictest0-21swapper/1221:33:234
19058979942022,397cyclictest0-21swapper/919:37:5815
1905897994200,419cyclictest0-21swapper/920:42:5815
190587599420418,2cyclictest2101834-21kworker/3:0+events00:25:229
190591699419417,2cyclictest2145160-21kworker/13:2+events23:41:235
190591699419416,3cyclictest1971858-21kworker/13:1+events20:24:215
1905897994190,419cyclictest0-21swapper/922:36:5915
1905897994190,419cyclictest0-21swapper/922:23:5815
190591699418416,2cyclictest1941450-21kworker/13:0+events20:40:235
19059129941820,395cyclictest0-21swapper/1223:32:224
19059059941724,390cyclictest0-21swapper/1100:02:573
1905919994164,412cyclictest0-21swapper/1400:14:596
19059059941617,398cyclictest0-21swapper/1122:28:213
1905894994161,415cyclictest0-21swapper/821:23:5914
190586599416414,1cyclictest1928340-21kworker/0:1+events21:23:590
190591699415414,1cyclictest0-21swapper/1321:52:225
190591699415414,1cyclictest0-21swapper/1320:16:215
190591699415413,2cyclictest0-21swapper/1323:53:595
19059059941517,398cyclictest0-21swapper/1100:30:573
1905894994150,414cyclictest0-21swapper/822:24:2114
19059129941414,397cyclictest0-21swapper/1219:33:594
19059059941416,397cyclictest0-21swapper/1100:11:583
19059059941416,396cyclictest0-21swapper/1122:20:223
19059059941416,396cyclictest0-21swapper/1121:57:213
19059059941415,397cyclictest0-21swapper/1119:47:583
19058869941412,398cyclictest0-21swapper/622:00:5712
190588299414414,0cyclictest2076876-21kworker/5:0+i915-unordered22:20:5911
190588299414410,3cyclictest1949732-21kworker/5:2+events20:34:5811
190587199414410,3cyclictest1922463-21kworker/u64:8+events_unbound20:17:588
19059059941314,398cyclictest0-21swapper/1122:02:593
190589799413412,1cyclictest0-21swapper/922:13:1115
19058759941316,396cyclictest0-21swapper/320:40:589
19059059941214,396cyclictest0-21swapper/1119:27:233
190587999412409,3cyclictest0-21swapper/420:19:5810
19058899941114,396cyclictest0-21swapper/700:01:2113
190587999411410,1cyclictest2027885-21kworker/4:0+i915-unordered21:20:2210
190586599411409,1cyclictest1915156-21kworker/0:0+events22:24:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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