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2025-10-18 - 08:37
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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 rack4slot6.osadl.org (updated Sat Oct 18, 2025 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5836521110,0pltrace0-21swapper/522:23:545
22828521010,92pltrace0-21swapper/619:05:146
107772980,0sleep70-21swapper/722:30:237
2282852960,88pltrace0-21swapper/519:08:055
2282852950,85pltrace0-21swapper/219:05:212
1754752900,2pltrace0-21swapper/620:48:556
2547127056,10sleep10-21swapper/119:07:071
2328827059,7sleep30-21swapper/319:05:093
2566026349,10sleep70-21swapper/719:09:307
2547926046,10sleep00-21swapper/019:07:140
2554825945,10sleep40-21swapper/419:08:154
1588652420,2pltrace0-21swapper/721:46:297
2202252320,0pltrace0-21swapper/720:00:487
693952280,0pltrace0-21swapper/723:25:147
2874052210,0pltrace0-21swapper/721:11:127
1309452210,0pltrace0-21swapper/721:40:157
1309452210,0pltrace0-21swapper/721:40:157
2592999200,4cyclictest0-21swapper/720:24:147
2034052200,1pltrace0-21swapper/720:55:587
2986352190,6pltrace0-21swapper/722:09:367
2763452190,4pltrace0-21swapper/720:10:357
2425152190,0pltrace0-21swapper/722:03:217
414852180,11pltrace0-21swapper/123:20:131
3096852180,1pltrace1270-21pltrace-run23:08:564
2592999189,8cyclictest0-21swapper/700:08:577
25929991815,2cyclictest5088-21basename20:25:147
25929991815,2cyclictest1166-21runrttasks19:51:007
25915991811,6cyclictest17080-21latency_hist22:45:003
1363052180,0pltrace0-21swapper/700:35:267
25929991714,2cyclictest14021-21if_err_eth023:35:167
25929991711,3cyclictest0-21swapper/723:51:507
25921991714,2cyclictest0-21swapper/522:34:345
25921991711,4cyclictest1066-13audispd23:25:005
2592199171,15cyclictest0-21swapper/519:50:485
2591899171,8cyclictest0-21swapper/421:47:024
2591899171,15cyclictest0-21swapper/420:18:204
2590699171,8cyclictest0-21swapper/121:07:361
1867252170,3pltrace0-21swapper/721:50:367
1141352170,8pltrace54-21ksoftirqd/422:36:144
752052160,7pltrace0-21swapper/321:30:233
752052160,1pltrace281rcuc/121:28:551
528952160,13pltrace54-21ksoftirqd/419:30:074
2986352160,1pltrace1132-21snmpd22:11:127
25929991614,2cyclictest6662-21pltrace21:25:227
25929991613,2cyclictest10034-21expr20:35:147
25929991610,5cyclictest0-21swapper/722:56:197
2592999161,14cyclictest0-21swapper/720:44:547
2592999160,7cyclictest0-21swapper/721:09:397
2592999160,15cyclictest0-21swapper/719:49:377
25926991613,2cyclictest0-21swapper/622:20:196
2592699161,8cyclictest0-21swapper/600:14:546
25921991611,3cyclictest0-21swapper/522:42:195
2592199160,15cyclictest0-21swapper/523:38:485
2592199160,15cyclictest0-21swapper/521:55:045
25918991611,3cyclictest0-21swapper/400:02:314
2591899161,8cyclictest0-21swapper/420:42:304
2591899160,8cyclictest0-21swapper/422:05:534
25915991610,5cyclictest0-21swapper/323:43:213
2591599161,4cyclictest0-21swapper/322:21:473
2591599161,14cyclictest0-21swapper/322:18:133
25910991611,3cyclictest0-21swapper/220:35:562
25910991611,3cyclictest0-21swapper/220:01:322
25910991610,5cyclictest0-21swapper/220:06:592
2591099161,14cyclictest0-21swapper/219:40:312
2591099160,9cyclictest0-21swapper/223:18:312
25906991610,5cyclictest0-21swapper/121:33:381
2590699161,8cyclictest0-21swapper/100:38:591
2590699160,15cyclictest0-21swapper/122:15:181
25901991610,1cyclictest2256952pltrace22:56:170
2312952160,14pltrace0-21swapper/521:01:035
972552150,11pltrace54-21ksoftirqd/423:33:164
752052150,2pltrace0-21swapper/721:31:327
528952150,9pltrace5790-21aten_r4power_en19:30:132
528952150,8pltrace5905-21cpu19:30:125
2592999155,7cyclictest78-21ksoftirqd/723:48:087
2592999155,7cyclictest78-21ksoftirqd/722:41:177
2592999154,5cyclictest78-21ksoftirqd/723:20:237
25929991513,2cyclictest30643-21tune2fs19:15:147
25929991513,1cyclictest26539-21expr19:10:107
25929991512,2cyclictest6528-21fschecks_time19:30:157
25929991512,2cyclictest31802-21expr23:10:137
25929991512,2cyclictest2169-21open_inodes22:15:197
25929991512,2cyclictest12108-21unixbench-2d23:30:267
25929991512,2cyclictest10966-21wc21:35:127
25929991512,2cyclictest10966-21wc21:35:127
25929991511,3cyclictest0-21swapper/722:20:427
25929991511,2cyclictest78-21ksoftirqd/722:45:187
2592999150,8cyclictest683-21fschecks_count00:10:137
2592999150,8cyclictest0-21swapper/720:45:247
2592999150,14cyclictest0-21swapper/723:08:447
2592699153,4cyclictest9646-21switchtime21:30:216
25926991512,2cyclictest0-21swapper/621:10:036
25926991511,3cyclictest32605-21threads20:15:226
25926991511,2cyclictest0-21swapper/621:51:106
25926991510,3cyclictest0-21swapper/622:44:196
2592699150,7cyclictest0-21swapper/623:32:006
2592699150,14cyclictest0-21swapper/623:16:566
2592699150,14cyclictest0-21swapper/620:20:366
2592699150,14cyclictest0-21swapper/620:10:056
2592699150,14cyclictest0-21swapper/600:06:426
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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