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2026-06-08 - 00:51
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Sun Jun 07, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
186621100,0sleep01865-21hddtemp_smartct10:28:570
2215827149,17sleep00-21swapper/007:03:550
291592690,0sleep00-21swapper/012:32:180
2348126947,17sleep10-21swapper/107:04:221
105662690,0sleep10-21swapper/110:39:131
193852630,0sleep10-21swapper/110:51:551
24081993410,22cyclictest0-21swapper/011:31:340
24081993219,13cyclictest0-21swapper/011:13:220
24082993130,0cyclictest24-21ksoftirqd/112:13:451
24082993130,0cyclictest231ktimersoftd/112:33:561
2408299302,3cyclictest91rcu_preempt10:22:211
24082992828,0cyclictest24-21ksoftirqd/111:54:021
24082992822,3cyclictest24-21ksoftirqd/109:40:051
24081992817,11cyclictest0-21swapper/007:19:080
24081992810,16cyclictest0-21swapper/008:54:090
24081992810,0cyclictest0-21swapper/008:34:560
2408199280,14cyclictest9928-21kworker/u4:012:13:030
2408299278,18cyclictest231ktimersoftd/109:47:081
24082992726,1cyclictest24-21ksoftirqd/110:08:161
24082992723,3cyclictest24-21ksoftirqd/111:06:241
24082992710,14cyclictest0-21swapper/109:23:571
24082992710,12cyclictest0-21swapper/111:36:431
24081992710,8cyclictest0-21swapper/009:31:480
24082992626,0cyclictest24-21ksoftirqd/110:09:021
24082992624,1cyclictest231ktimersoftd/107:14:031
24082992624,1cyclictest18702-21munin-run08:18:441
24081992619,4cyclictest24079-21cyclictest09:35:390
2408299253,1cyclictest7789-21/usr/sbin/munin09:53:581
24082992524,0cyclictest24-21ksoftirqd/109:59:521
24082992524,0cyclictest24-21ksoftirqd/109:09:041
24082992524,0cyclictest24-21ksoftirqd/107:28:581
24082992523,2cyclictest0-21swapper/111:42:101
24082992522,1cyclictest24-21ksoftirqd/111:30:171
2408299252,12cyclictest2301-21/usr/sbin/munin08:58:581
24082992520,4cyclictest24-21ksoftirqd/107:24:531
2408299251,3cyclictest91rcu_preempt09:32:051
2408299250,1cyclictest24-21ksoftirqd/108:48:591
24081992510,13cyclictest0-21swapper/007:51:250
2408299241,8cyclictest24-21ksoftirqd/112:20:251
2408299241,6cyclictest91rcu_preempt12:18:261
24082992413,3cyclictest0-21swapper/110:28:551
24082992410,0cyclictest0-21swapper/111:22:341
24081992410,7cyclictest0-21swapper/012:03:590
24081992410,7cyclictest0-21swapper/007:59:050
24081992410,6cyclictest0-21swapper/009:19:420
24081992410,6cyclictest0-21swapper/008:38:590
24081992410,6cyclictest0-21swapper/008:29:020
24081992410,11cyclictest0-21swapper/010:59:100
2408299237,3cyclictest91rcu_preempt10:14:081
24082992323,0cyclictest24-21ksoftirqd/112:29:051
24082992321,2cyclictest0-21swapper/110:38:261
24082992320,1cyclictest24-21ksoftirqd/112:23:571
24082992316,4cyclictest1535-21apache211:00:241
24082992310,9cyclictest0-21swapper/107:33:571
24081992323,0cyclictest0-21swapper/007:35:000
24081992319,3cyclictest636-21nscd10:46:340
24081992310,6cyclictest0-21swapper/008:08:560
24081992310,4cyclictest0-21swapper/010:19:040
24081992310,10cyclictest0-21swapper/012:00:200
2408199230,22cyclictest0-21swapper/011:49:420
2408299224,8cyclictest0-21swapper/110:54:021
2408299221,6cyclictest24-21ksoftirqd/111:27:101
24082992214,1cyclictest91rcu_preempt11:08:511
24082992212,6cyclictest0-21swapper/108:09:021
2408299221,20cyclictest22694-21/usr/sbin/munin08:28:551
24082992211,6cyclictest24-21ksoftirqd/109:53:331
24082992211,2cyclictest24-21ksoftirqd/110:26:381
24082992210,7cyclictest0-21swapper/111:59:281
24082992210,5cyclictest0-21swapper/109:33:541
24082992210,3cyclictest0-21swapper/108:35:171
2408299220,19cyclictest9748-21rm09:13:451
24081992221,1cyclictest744-21snmpd09:16:480
24082992119,2cyclictest0-21swapper/110:45:301
24082992118,1cyclictest24-21ksoftirqd/112:04:351
24082992116,2cyclictest24-21ksoftirqd/109:19:371
24082992110,7cyclictest0-21swapper/108:23:561
2408299210,3cyclictest91rcu_preempt11:50:421
2408299210,19cyclictest0-21swapper/108:23:061
2408199213,16cyclictest0-21swapper/009:42:470
24081992121,0cyclictest0-21swapper/010:27:140
24081992119,1cyclictest26506-21users11:44:060
24081992116,2cyclictest1535-21apache209:47:310
24081992116,2cyclictest10411-21ls11:23:560
24081992114,3cyclictest1535-21apache210:36:330
24081992111,7cyclictest0-21swapper/010:13:560
24081992111,4cyclictest0-21swapper/011:05:130
24081992110,6cyclictest0-21swapper/010:54:050
24081992110,6cyclictest0-21swapper/010:39:020
327092200,2sleep10-21swapper/108:54:001
24082992017,2cyclictest28515-21/usr/sbin/munin08:43:561
24082992016,3cyclictest0-21swapper/107:11:051
24082992011,5cyclictest231ktimersoftd/107:43:571
24082992010,6cyclictest0-21swapper/107:58:571
24082992010,4cyclictest0-21swapper/111:43:451
24082992010,4cyclictest0-21swapper/107:39:051
2408299200,10cyclictest7360-21/usr/sbin/munin07:48:571
2408199206,9cyclictest0-21swapper/009:01:200
24081992011,4cyclictest5560-21diskmemload11:19:080
24081992010,8cyclictest0-21swapper/012:21:380
24081992010,5cyclictest0-21swapper/012:33:570
24081992010,3cyclictest0-21swapper/009:53:570
24081992010,2cyclictest0-21swapper/011:40:200
24081992010,2cyclictest0-21swapper/010:08:550
2408299194,11cyclictest0-21swapper/109:03:581
2408299193,14cyclictest0-21swapper/108:03:571
24082991912,5cyclictest100150irq/106-eth1-rx08:40:251
2408199195,6cyclictest0-21swapper/010:03:590
24081991918,0cyclictest81ktimersoftd/011:16:420
24081991916,2cyclictest24079-21cyclictest11:35:010
2408199191,17cyclictest16515-21unixbench_multi12:14:060
24081991910,8cyclictest0-21swapper/011:56:000
24081991910,8cyclictest0-21swapper/010:51:270
24081991910,4cyclictest0-21swapper/008:49:050
24081991910,0cyclictest0-21swapper/010:00:530
557721810,0sleep10-21swapper/111:17:021
24082991810,6cyclictest0-21swapper/107:19:011
2408199182,9cyclictest0-21swapper/007:39:010
24081991815,2cyclictest0-21swapper/009:50:070
24081991814,2cyclictest0-21swapper/007:57:320
24081991812,4cyclictest0-21swapper/007:13:570
24081991810,3cyclictest0-21swapper/012:23:460
1842521810,0sleep00-21swapper/008:16:050
24082991715,1cyclictest11043-21munin-run07:58:441
2408199172,10cyclictest0-21swapper/007:31:290
24081991712,2cyclictest0-21swapper/008:23:590
24081991712,1cyclictest0-21swapper/007:26:570
24081991710,3cyclictest0-21swapper/009:27:450
24081991710,3cyclictest0-21swapper/009:04:050
2408199170,2cyclictest0-21swapper/008:04:010
2408199164,3cyclictest28462-21apache_processe08:43:560
2545321510,0sleep00-21swapper/007:09:430
24081991512,1cyclictest0-21swapper/009:08:580
24081991510,2cyclictest0-21swapper/008:19:010
24081991510,0cyclictest0-21swapper/007:45:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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