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2025-11-29 - 17:51
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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 Sat Nov 29, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2939627047,17sleep10-21swapper/107:01:581
3037726850,8sleep00-21swapper/007:02:280
10392650,0sleep03097299cyclictest09:32:040
30973993610,0cyclictest0-21swapper/109:07:021
30973993110,19cyclictest0-21swapper/108:52:401
30973992927,1cyclictest12987-21ssh10:31:181
3097299280,21cyclictest0-21swapper/012:31:560
30973992710,12cyclictest0-21swapper/109:57:111
30972992725,1cyclictest7-21ksoftirqd/009:56:430
3097299270,5cyclictest0-21swapper/011:35:350
30973992624,1cyclictest24-21ksoftirqd/111:41:571
30973992624,1cyclictest24-21ksoftirqd/109:37:001
3097399260,0cyclictest0-21swapper/110:05:581
30973992525,0cyclictest24-21ksoftirqd/109:51:271
30973992524,0cyclictest24-21ksoftirqd/110:36:421
30973992523,1cyclictest24-21ksoftirqd/108:16:431
30973992510,4cyclictest0-21swapper/112:05:511
30973992510,0cyclictest0-21swapper/112:31:401
3097399250,1cyclictest0-21swapper/111:36:341
3097399250,1cyclictest0-21swapper/110:23:481
30972992525,0cyclictest0-21swapper/012:08:460
30972992523,1cyclictest7-21ksoftirqd/010:41:420
30972992518,5cyclictest8399-21apache210:12:160
30973992424,0cyclictest0-21swapper/108:51:091
30973992422,1cyclictest24-21ksoftirqd/112:11:431
30973992422,1cyclictest24-21ksoftirqd/110:51:561
30973992420,4cyclictest8399-21apache211:21:161
30973992410,3cyclictest0-21swapper/110:19:211
30973992410,2cyclictest0-21swapper/111:09:271
30973992410,12cyclictest0-21swapper/108:31:331
3097299241,22cyclictest0-21swapper/012:30:230
30972992410,6cyclictest0-21swapper/012:25:070
30972992410,1cyclictest0-21swapper/011:25:580
3097399235,14cyclictest0-21swapper/107:27:031
3097399232,21cyclictest0-21swapper/111:01:051
30973992321,1cyclictest24-21ksoftirqd/109:52:011
30973992321,1cyclictest0-21swapper/111:49:361
3097299237,8cyclictest636-21nscd07:46:580
30972992317,3cyclictest29139-21sh12:18:130
30972992317,3cyclictest11376-21sh10:28:020
30972992312,2cyclictest636-21nscd11:45:350
30972992310,4cyclictest0-21swapper/010:05:160
30973992221,0cyclictest24-21ksoftirqd/108:22:041
30973992220,1cyclictest24-21ksoftirqd/110:48:061
30973992220,1cyclictest231ktimersoftd/109:22:041
30973992210,7cyclictest0-21swapper/111:29:111
30972992220,1cyclictest8426-21apache209:24:350
30972992210,8cyclictest81ktimersoftd/008:22:050
30972992210,3cyclictest0-21swapper/007:12:000
3097299220,17cyclictest0-21swapper/011:47:450
3097399213,5cyclictest91rcu_preempt11:02:011
30973992121,0cyclictest24-21ksoftirqd/109:12:011
30973992120,1cyclictest24-21ksoftirqd/108:07:461
30973992120,0cyclictest24-21ksoftirqd/111:23:081
30973992120,0cyclictest0-21swapper/109:17:211
30973992117,2cyclictest231ktimersoftd/110:12:021
30973992116,3cyclictest17943-21grep07:56:431
30973992115,4cyclictest30970-21cyclictest07:31:431
30973992115,3cyclictest8399-21apache211:16:121
30973992111,4cyclictest13377-21kworker/1:210:39:351
3097399211,12cyclictest0-21swapper/112:31:581
30973992110,3cyclictest0-21swapper/110:45:381
30973992110,2cyclictest0-21swapper/109:27:221
3097299215,4cyclictest0-21swapper/007:51:550
30972992117,2cyclictest8426-21apache209:09:040
30972992117,1cyclictest17177-21sh11:18:070
30972992116,5cyclictest8399-21apache209:21:110
30972992116,1cyclictest0-21swapper/010:44:500
30972992110,2cyclictest0-21swapper/008:35:390
30972992110,0cyclictest0-21swapper/010:16:570
3097299210,6cyclictest25528-21sh11:29:450
30973992010,5cyclictest0-21swapper/112:22:021
3097399200,6cyclictest0-21swapper/109:46:161
3097299208,7cyclictest0-21swapper/010:56:550
3097299208,3cyclictest11407-21apache_volume09:46:560
3097299203,9cyclictest0-21swapper/008:51:570
30972992019,0cyclictest28173-21kworker/u4:111:52:430
30972992019,0cyclictest26842-21grep08:17:020
30972992018,1cyclictest0-21swapper/012:01:170
30972992015,3cyclictest8426-21apache210:36:320
30972992015,2cyclictest8426-21apache212:12:560
30972992013,5cyclictest97750irq/106-eth1-rx11:07:510
30972992013,2cyclictest13479-21timerwakeupswit07:42:030
30972992010,5cyclictest0-21swapper/009:37:020
30972992010,4cyclictest0-21swapper/009:29:080
30972992010,4cyclictest0-21swapper/008:06:430
2854922010,0sleep10-21swapper/110:08:141
656521910,1sleep00-21swapper/008:51:070
3097399195,11cyclictest0-21swapper/108:16:541
3097399192,9cyclictest0-21swapper/112:16:561
30973991918,0cyclictest24-21ksoftirqd/108:43:411
30973991917,1cyclictest24-21ksoftirqd/109:31:581
30973991917,1cyclictest24-21ksoftirqd/107:10:111
30973991911,6cyclictest24-21ksoftirqd/107:11:561
30973991910,3cyclictest0-21swapper/112:14:141
30973991910,3cyclictest0-21swapper/107:16:581
3097299195,9cyclictest0-21swapper/007:21:540
3097299195,4cyclictest19945-21ntp_states09:57:010
3097299195,3cyclictest18294-21ssh09:12:280
3097299194,14cyclictest0-21swapper/008:36:550
30972991917,1cyclictest0-21swapper/010:47:370
30972991913,3cyclictest30970-21cyclictest07:07:020
30972991910,6cyclictest0-21swapper/009:42:270
30972991910,4cyclictest0-21swapper/012:02:010
30972991910,4cyclictest0-21swapper/010:55:400
30972991910,1cyclictest0-21swapper/008:09:350
1208421910,0sleep10-21swapper/111:55:131
3097399184,7cyclictest0-21swapper/111:37:001
3097399184,5cyclictest20007-21apache_accesses08:01:561
30973991817,1cyclictest231ktimersoftd/109:00:401
3097299184,9cyclictest0-21swapper/008:27:040
3097299182,4cyclictest0-21swapper/008:12:030
30972991814,1cyclictest0-21swapper/011:38:080
30972991811,4cyclictest0-21swapper/011:03:090
30972991810,3cyclictest0-21swapper/007:31:580
1951921810,0sleep00-21swapper/007:58:290
3097399173,8cyclictest0-21swapper/107:47:021
3097399171,7cyclictest2189-21ls08:37:041
30973991715,1cyclictest60592sleep107:26:061
30973991715,1cyclictest231ktimersoftd/107:44:291
30973991710,4cyclictest0-21swapper/107:37:041
3097299173,7cyclictest0-21swapper/009:02:020
3097299172,5cyclictest15065-21diskmemload11:16:370
30972991711,5cyclictest8360-21kworker/0:007:38:060
30972991711,5cyclictest1956-21kworker/0:107:31:180
30972991710,3cyclictest0-21swapper/008:41:570
30972991710,2cyclictest0-21swapper/010:23:120
3097299170,6cyclictest0-21swapper/010:07:050
3097399164,11cyclictest887-21perf08:36:431
3097399161,11cyclictest0-21swapper/109:01:581
30973991610,2cyclictest24-21ksoftirqd/111:56:581
30972991610,5cyclictest0-21swapper/007:20:210
30973991513,1cyclictest8426-21apache207:59:121
3097299153,4cyclictest0-21swapper/008:57:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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