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2025-12-26 - 11:37
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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 rackfslot7.osadl.org (updated Fri Dec 26, 2025 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2768199991490,148cyclictest0-21swapper/723:15:347
276819899980,97cyclictest0-21swapper/619:50:156
276819899880,87cyclictest0-21swapper/623:15:346
276819699812,61cyclictest0-21swapper/421:02:004
2768192997556,1cyclictest171ktimers/020:15:190
2768196997416,39cyclictest2815888-21sed20:30:254
2768196997113,39cyclictest413-21systemd-journal19:25:004
2768196997112,39cyclictest2821995-21perf20:49:554
2768196997032,38cyclictest0-21swapper/421:30:154
276819699699,39cyclictest1086-21runrttasks23:42:524
2768195996666,0cyclictest0-21swapper/320:40:163
2768196996527,19cyclictest2949370-21ntpq00:25:214
2768196996425,20cyclictest2839068-21latency_hist21:15:004
2768196996325,19cyclictest0-21swapper/421:20:204
2768195996255,6cyclictest1-21systemd23:10:023
2768196996122,39cyclictest0-21swapper/423:32:044
276819699610,22cyclictest61-21ksoftirqd/420:21:494
276819599612,39cyclictest0-21swapper/323:15:173
276819699602,19cyclictest191rcu_preempt23:48:054
276819699602,19cyclictest191rcu_preempt19:59:454
2768196995921,38cyclictest362-21jbd2/sda2-800:05:204
276819699580,39cyclictest2820771-21ls20:40:194
2768196995617,39cyclictest1086-21runrttasks22:02:274
2768196995517,19cyclictest2883270-21ntp_states22:30:204
2768196995516,39cyclictest2868598-21sed22:05:194
2768196995516,39cyclictest2852194-21awk21:35:204
2768196995319,15cyclictest0-21swapper/423:20:234
2768196995319,15cyclictest0-21swapper/422:38:514
2768196995314,39cyclictest0-21swapper/421:16:174
2768196995314,39cyclictest0-21swapper/419:27:254
2768196995314,19cyclictest0-21swapper/421:47:524
2768196995314,19cyclictest0-21swapper/421:41:314
2768196995314,19cyclictest0-21swapper/400:01:074
2768199995213,38cyclictest0-21swapper/722:45:187
2768196995218,15cyclictest0-21swapper/421:56:114
2768196995214,19cyclictest0-21swapper/423:01:054
2768196995214,19cyclictest0-21swapper/422:50:134
2768196995213,39cyclictest0-21swapper/422:12:564
2768196995213,39cyclictest0-21swapper/421:29:094
2768196995213,39cyclictest0-21swapper/420:14:114
2768196995213,39cyclictest0-21swapper/420:05:044
2768196995213,39cyclictest0-21swapper/419:51:584
2768196995213,19cyclictest0-21swapper/422:19:334
2768196995213,19cyclictest0-21swapper/421:51:254
2768196995213,19cyclictest0-21swapper/419:12:254
2768196995213,19cyclictest0-21swapper/400:23:594
2768194995214,19cyclictest0-21swapper/222:10:172
2768194995213,39cyclictest0-21swapper/221:25:192
2768192995214,19cyclictest0-21swapper/020:10:180
2768192995213,19cyclictest0-21swapper/021:10:190
2768196995133,18cyclictest2933236-21apt-config00:00:014
2768196995133,18cyclictest0-21swapper/422:26:094
2768196995133,18cyclictest0-21swapper/419:35:194
2768196995133,18cyclictest0-21swapper/419:15:514
2768196995113,19cyclictest0-21swapper/419:47:294
2768196995112,19cyclictest0-21swapper/423:10:554
2768196995112,19cyclictest0-21swapper/419:32:544
2768196995032,18cyclictest0-21swapper/423:50:224
2768196995032,18cyclictest0-21swapper/423:19:334
2768196995012,38cyclictest0-21swapper/420:04:574
2768196995010,39cyclictest0-21swapper/422:55:424
2768195995032,18cyclictest0-21swapper/323:25:173
2768194995031,19cyclictest0-21swapper/220:50:172
2768193995012,19cyclictest0-21swapper/119:50:141
2768198994911,19cyclictest0-21swapper/621:15:196
2768196994930,19cyclictest0-21swapper/420:35:024
2768192994911,19cyclictest0-21swapper/022:40:150
2768199994810,38cyclictest0-21swapper/723:10:197
276819699489,19cyclictest0-21swapper/421:06:474
276819699489,19cyclictest0-21swapper/420:52:154
276819599489,39cyclictest0-21swapper/319:55:143
2768195994810,38cyclictest0-21swapper/320:25:173
2768194994810,18cyclictest0-21swapper/200:10:172
276819899479,19cyclictest0-21swapper/600:05:216
276819699479,38cyclictest0-21swapper/420:55:234
276819699479,38cyclictest0-21swapper/419:43:524
276819699478,39cyclictest0-21swapper/423:27:574
2768196994729,18cyclictest0-21swapper/420:16:544
2768196994728,18cyclictest870-21mta-sts-daemon22:40:194
2768198994627,19cyclictest0-21swapper/621:05:156
276819499468,19cyclictest0-21swapper/221:05:152
276819299468,19cyclictest0-21swapper/022:35:160
276819899457,19cyclictest0-21swapper/621:45:176
276819699456,39cyclictest0-21swapper/422:47:104
276819699456,39cyclictest0-21swapper/400:30:154
2768196994526,19cyclictest2904413-21apt-get23:10:004
2768196994526,19cyclictest0-21swapper/400:36:534
276819599457,19cyclictest0-21swapper/319:30:153
276819499455,39cyclictest0-21swapper/200:00:152
2768194994426,18cyclictest0-21swapper/220:30:172
276819299446,19cyclictest0-21swapper/021:15:210
2768196994324,19cyclictest0-21swapper/422:25:004
2768196994223,19cyclictest0-21swapper/400:14:474
276819499425,18cyclictest0-21swapper/221:00:182
2768196994122,19cyclictest0-21swapper/423:35:214
2768196994122,19cyclictest0-21swapper/420:28:204
276819599413,19cyclictest0-21swapper/321:30:173
276819299411,32cyclictest2784706-21python319:35:250
276819699401,0cyclictest191rcu_preempt00:18:524
276819399401,39cyclictest0-21swapper/122:00:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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