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2025-07-12 - 11:06
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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 rack0slot2.osadl.org (updated Sat Jul 12, 2025 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109432325545,7sleep50-21swapper/503:29:285
109423825522,29sleep70-21swapper/703:28:187
109443725040,7sleep60-21swapper/603:31:066
109443524839,6sleep40-21swapper/403:31:044
109483799420,40cyclictest1191425-21latency_hist04:17:277
109483799420,40cyclictest1191425-21latency_hist04:17:277
1094826993230,2cyclictest1200396-21kworker/u16:5+events_unbound05:27:224
1094826993028,2cyclictest1121318-21kworker/u16:2+events_unbound03:54:384
1094826993028,2cyclictest1092227-21kworker/u16:5+events_unbound04:02:494
13326552290,0chrt0-21swapper/505:22:495
1094826992926,2cyclictest1479146-21kworker/u16:3+events_unbound07:07:294
1094830992826,2cyclictest1346808-21kworker/u16:3+flush-8:005:57:465
1094826992826,2cyclictest1686254-21kworker/u16:2+events_unbound08:22:264
1094826992724,2cyclictest1727785-21kworker/u16:1+events_unbound08:52:284
109483799260,25cyclictest1243020-21latency_hist04:42:287
109483799260,24cyclictest1593572-21latency_hist07:32:277
1094826992624,2cyclictest1121318-21kworker/u16:2+events_unbound03:47:444
1094826992623,2cyclictest1479146-21kworker/u16:3+flush-8:009:02:264
1094826992623,2cyclictest1479146-21kworker/u16:3+flush-8:009:02:264
1094830992523,2cyclictest1479146-21kworker/u16:3+flush-8:008:12:455
109483799240,22cyclictest1335773-21latency_hist05:27:277
109483799240,22cyclictest1294539-21latency_hist05:07:277
109483799240,22cyclictest1294539-21latency_hist05:07:277
1094826992422,2cyclictest1407823-21kworker/u16:1+events_unbound06:22:504
1094826992421,2cyclictest1200396-21kworker/u16:5+flush-8:006:07:464
1094830992321,2cyclictest1479146-21kworker/u16:3+events_unbound07:14:415
1094830992321,2cyclictest1064491-21kworker/u16:3+flush-8:003:37:585
1094826992220,2cyclictest820377-21kworker/u16:1+flush-8:004:17:374
1094826992220,2cyclictest1614312-21kworker/u16:4+events_unbound07:47:554
1094826992219,2cyclictest1567576-21kworker/u16:4+events_unbound07:22:404
1094826992219,2cyclictest1567576-21kworker/u16:4+events_unbound07:22:404
15713192210,1chrt1571320-21kthreadcore07:17:497
109483799210,20cyclictest1562648-21sed07:17:267
109483799210,19cyclictest1706795-21latency_hist08:27:277
1094830992117,3cyclictest1121318-21kworker/u16:2+flush-8:005:02:585
1094830992117,3cyclictest1121318-21kworker/u16:2+flush-8:005:02:585
1094826992119,2cyclictest1541611-21kworker/u16:0+flush-8:007:37:224
1094826992118,2cyclictest1440858-21kworker/u16:2+events_unbound06:32:444
1094837992019,0cyclictest0-21swapper/704:07:467
1094832992018,2cyclictest1192159-21kworker/u16:4+events_unbound04:17:466
1094830992018,2cyclictest1200396-21kworker/u16:5+flush-8:006:12:275
1094826992018,2cyclictest1407823-21kworker/u16:1+events_unbound06:43:274
1094826992018,2cyclictest1200396-21kworker/u16:5+flush-8:004:54:504
1094826992018,2cyclictest1192159-21kworker/u16:4+flush-8:005:17:564
1094826992017,2cyclictest1614312-21kworker/u16:4+events_unbound08:32:404
1094826992017,2cyclictest1092227-21kworker/u16:5+events_unbound03:32:394
1094826991917,2cyclictest1200396-21kworker/u16:5+flush-8:005:43:014
1094826991916,3cyclictest1614312-21kworker/u16:4+events_unbound08:08:264
1094837991815,2cyclictest1284288-21latency_hist05:02:277
1094837991815,2cyclictest1129816-21latency_hist03:47:287
1094830991816,2cyclictest1121318-21kworker/u16:2+flush-8:004:12:575
1094830991816,2cyclictest1121318-21kworker/u16:2+flush-8:004:12:575
1094826991816,2cyclictest339226-21kworker/u16:0+events_unbound04:25:374
109483799170,1cyclictest0-21swapper/706:12:537
109483799170,15cyclictest1387411-21latency_hist05:52:277
109483799170,15cyclictest1387411-21latency_hist05:52:277
109483099170,16cyclictest1757243-21latency08:47:495
1094826991715,2cyclictest1604104-21kworker/u16:2+flush-8:007:37:474
1094826991715,2cyclictest1121318-21kworker/u16:2+flush-8:004:07:474
1094826991714,2cyclictest1346808-21kworker/u16:3+flush-8:006:02:374
109482699170,1cyclictest0-21swapper/408:32:054
109482699170,1cyclictest0-21swapper/405:55:254
1094826991614,2cyclictest1479146-21kworker/u16:3+flush-8:008:04:364
1094826991614,2cyclictest1479146-21kworker/u16:3+events_unbound08:37:514
1094826991614,2cyclictest1479146-21kworker/u16:3+events_unbound08:37:514
1094826991614,2cyclictest1407823-21kworker/u16:1+events_unbound06:52:564
1094826991614,2cyclictest1346808-21kworker/u16:3+events_unbound05:57:554
1094826991614,2cyclictest1192159-21kworker/u16:4+events_unbound05:33:494
109482699160,1cyclictest0-21swapper/408:47:264
109482699160,1cyclictest0-21swapper/408:22:524
109482699160,1cyclictest0-21swapper/408:14:404
109482699160,1cyclictest0-21swapper/407:58:174
109482699160,1cyclictest0-21swapper/407:18:214
109482699160,1cyclictest0-21swapper/407:17:204
109482699160,1cyclictest0-21swapper/406:19:594
109482699160,1cyclictest0-21swapper/405:39:024
109482699160,1cyclictest0-21swapper/405:14:274
109482699160,1cyclictest0-21swapper/405:05:144
109482699160,1cyclictest0-21swapper/405:05:144
109482699160,1cyclictest0-21swapper/404:58:044
109482699160,1cyclictest0-21swapper/404:48:514
109482699160,1cyclictest0-21swapper/404:40:404
109482699160,1cyclictest0-21swapper/404:34:314
109482699160,1cyclictest0-21swapper/404:17:074
109482699160,1cyclictest0-21swapper/404:17:074
109482699160,1cyclictest0-21swapper/403:59:424
109482699160,1cyclictest0-21swapper/403:43:194
109483799159,5cyclictest27763-21gvfs-afc-volume08:37:527
109483799159,5cyclictest27763-21gvfs-afc-volume08:37:527
1094837991513,1cyclictest0-21swapper/708:17:527
109483799150,13cyclictest1313-21snmpd08:36:377
1094832991512,2cyclictest1455243-21tr06:22:496
1094832991512,2cyclictest1407823-21kworker/u16:1+flush-8:006:07:426
1094830991513,2cyclictest1407823-21kworker/u16:1+events_unbound06:52:425
1094826991513,2cyclictest1200396-21kworker/u16:5+events_unbound04:27:514
109482699150,1cyclictest0-21swapper/405:47:484
109482699150,1cyclictest0-21swapper/405:47:484
109483799147,6cyclictest27763-21gvfs-afc-volume03:37:537
109483799147,6cyclictest27430-21gmain07:32:497
109483799140,1cyclictest0-21swapper/708:12:547
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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