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2026-06-04 - 06:09
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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 highest latencies:
System rackcslot2.osadl.org (updated Thu Jun 04, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
475726956,8sleep10-21swapper/119:03:531
621626856,8sleep00-21swapper/019:05:090
139732540,1sleep10-21swapper/122:03:591
674699321,1cyclictest24-21ksoftirqd/122:41:001
6746993028,1cyclictest24-21ksoftirqd/123:08:581
6746992827,0cyclictest24-21ksoftirqd/100:17:431
674699281,4cyclictest91rcu_preempt21:15:201
674699281,3cyclictest91rcu_preempt00:33:591
6746992810,3cyclictest0-21swapper/122:37:111
6745992810,18cyclictest0-21swapper/020:14:530
6746992727,0cyclictest24-21ksoftirqd/122:44:001
6746992726,1cyclictest231ktimersoftd/120:58:541
6746992719,6cyclictest5458-21apache222:54:061
6745992710,2cyclictest0-21swapper/000:15:570
674699263,7cyclictest0-21swapper/123:19:061
6746992625,1cyclictest24-21ksoftirqd/122:11:231
6746992519,3cyclictest231ktimersoftd/123:56:101
6746992519,1cyclictest24-21ksoftirqd/119:38:531
6746992518,5cyclictest24-21ksoftirqd/123:34:021
6746992510,11cyclictest0-21swapper/122:24:211
6745992510,9cyclictest0-21swapper/000:35:080
674599250,24cyclictest0-21swapper/023:48:140
674599250,15cyclictest0-21swapper/023:21:480
674699246,9cyclictest0-21swapper/120:08:541
6746992423,1cyclictest24-21ksoftirqd/123:39:041
674699242,2cyclictest91rcu_preempt22:49:551
6746992421,2cyclictest24-21ksoftirqd/122:14:111
6746992419,3cyclictest24-21ksoftirqd/121:49:061
6746992417,3cyclictest24-21ksoftirqd/121:54:061
6746992414,5cyclictest24-21ksoftirqd/100:09:021
674699240,21cyclictest0-21swapper/100:27:191
674699240,1cyclictest91rcu_preempt23:33:301
674699240,11cyclictest0-21swapper/120:18:541
6745992423,0cyclictest0-21swapper/022:47:500
6745992418,5cyclictest5458-21apache200:27:470
6745992410,3cyclictest0-21swapper/019:09:030
6745992410,0cyclictest0-21swapper/022:41:130
674699239,13cyclictest0-21swapper/100:23:271
674699238,10cyclictest24-21ksoftirqd/119:09:071
674699237,15cyclictest2575-21kworker/u4:123:06:581
6746992312,3cyclictest91rcu_preempt00:31:221
6746992310,7cyclictest0-21swapper/122:18:581
6746992310,1cyclictest0-21swapper/121:20:391
674699230,9cyclictest24-21ksoftirqd/121:39:031
674699230,11cyclictest0-21swapper/119:58:531
674599234,14cyclictest0-21swapper/022:04:000
6745992323,0cyclictest0-21swapper/023:03:010
6745992323,0cyclictest0-21swapper/020:19:080
6745992321,1cyclictest636-21nscd21:38:550
6745992311,5cyclictest0-21swapper/023:04:030
6745992310,8cyclictest16749-21ls21:24:070
674599230,19cyclictest16503-21apache_accesses23:33:580
674699227,5cyclictest91rcu_preempt21:43:561
6746992222,0cyclictest0-21swapper/100:00:461
6746992220,2cyclictest0-21swapper/121:11:011
6746992212,6cyclictest0-21swapper/121:24:061
6746992210,5cyclictest0-21swapper/121:28:581
6746992210,4cyclictest0-21swapper/119:48:571
674599223,16cyclictest0-21swapper/022:14:020
674599222,1cyclictest0-21swapper/021:17:560
6745992221,1cyclictest5458-21apache221:53:050
6745992214,6cyclictest5458-21apache200:33:410
6745992210,7cyclictest0-21swapper/023:18:320
6745992210,4cyclictest0-21swapper/021:29:030
221122210,1sleep00-21swapper/020:57:280
674699219,11cyclictest0-21swapper/120:05:221
6746992120,1cyclictest24-21ksoftirqd/122:02:541
6746992119,1cyclictest24-21ksoftirqd/122:59:221
6746992119,1cyclictest24-21ksoftirqd/121:34:211
6746992114,2cyclictest0-21swapper/122:31:531
674599214,8cyclictest0-21swapper/000:19:050
6745992116,3cyclictest5458-21apache222:53:250
6745992110,4cyclictest0-21swapper/021:34:020
6745992110,3cyclictest0-21swapper/020:26:000
674599210,5cyclictest0-21swapper/020:33:410
674699204,10cyclictest0-21swapper/120:44:451
674699202,17cyclictest0-21swapper/123:18:201
6746992010,3cyclictest0-21swapper/119:44:351
674599206,4cyclictest1105-21ls22:29:060
674599203,8cyclictest0-21swapper/000:01:550
6745992020,0cyclictest0-21swapper/021:55:520
6745992015,3cyclictest6743-21cyclictest23:10:480
6745992013,6cyclictest5458-21apache222:23:320
6745992010,5cyclictest0-21swapper/022:53:560
6745992010,4cyclictest0-21swapper/021:18:550
6745992010,4cyclictest0-21swapper/021:08:590
6745992010,3cyclictest0-21swapper/020:48:560
674699192,4cyclictest91rcu_preempt20:54:071
6746991918,1cyclictest0-21swapper/120:28:571
6746991917,2cyclictest0-21swapper/119:28:581
6746991915,3cyclictest24-21ksoftirqd/100:04:501
6746991914,3cyclictest0-21swapper/123:52:341
6746991910,6cyclictest0-21swapper/119:19:031
6746991910,4cyclictest0-21swapper/123:23:561
674599197,4cyclictest20689-21ls19:59:010
6745991917,1cyclictest0-21swapper/023:53:090
6745991914,3cyclictest100150irq/106-eth1-rx22:10:590
6745991913,4cyclictest81ktimersoftd/021:59:030
6745991910,8cyclictest0-21swapper/023:26:580
6745991910,2cyclictest0-21swapper/023:29:560
6745991910,1cyclictest81ktimersoftd/021:45:470
2302921910,0sleep00-21swapper/023:42:190
674699186,7cyclictest231ktimersoftd/123:43:581
6746991815,2cyclictest24528-21munin-run20:18:461
674699181,14cyclictest0-21swapper/119:34:031
6746991810,2cyclictest0-21swapper/120:26:591
6745991818,0cyclictest0-21swapper/019:15:120
6745991816,1cyclictest5476-21apache220:43:060
6745991810,3cyclictest0-21swapper/022:33:570
6745991810,2cyclictest0-21swapper/019:33:480
6745991810,0cyclictest0-21swapper/020:58:580
151021810,0sleep10-21swapper/120:51:461
6746991710,2cyclictest0-21swapper/120:37:541
6745991710,3cyclictest0-21swapper/022:23:580
6745991710,2cyclictest0-21swapper/019:29:020
6745991710,0cyclictest0-21swapper/020:37:480
674599170,7cyclictest0-21swapper/023:53:560
6746991615,1cyclictest231ktimersoftd/120:39:301
674599169,2cyclictest81ktimersoftd/019:44:420
674599162,7cyclictest0-21swapper/019:48:540
6745991610,2cyclictest0-21swapper/019:19:010
6745991610,2cyclictest0-21swapper/000:08:580
6745991610,1cyclictest0-21swapper/020:06:450
674699156,5cyclictest0-21swapper/119:14:011
674699153,8cyclictest0-21swapper/121:04:141
6746991512,2cyclictest11797-21sed19:28:471
6746991511,2cyclictest190882chrt19:55:451
6745991510,5cyclictest0-21swapper/000:04:190
6745991510,2cyclictest0-21swapper/020:08:590
6745991510,0cyclictest0-21swapper/021:05:570
6745991510,0cyclictest0-21swapper/019:40:130
6745991410,2cyclictest0-21swapper/020:43:480
6745991410,0cyclictest0-21swapper/019:24:410
6745991310,2cyclictest0-21swapper/019:55:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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