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2026-03-23 - 21:29
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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 Mon Mar 23, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3050427461,8sleep10-21swapper/107:08:281
3016426857,7sleep00-21swapper/007:04:530
247822610,0sleep10-21swapper/110:09:341
30767993910,0cyclictest0-21swapper/108:44:421
3076699310,30cyclictest0-21swapper/008:44:290
3076699300,29cyclictest0-21swapper/011:34:540
30767992929,0cyclictest0-21swapper/110:32:551
30767992929,0cyclictest0-21swapper/109:44:331
3076699290,26cyclictest0-21swapper/007:17:210
30766992710,2cyclictest0-21swapper/011:21:410
30767992622,4cyclictest8223-21apache211:58:561
30766992619,3cyclictest81ktimersoftd/010:03:590
30767992520,3cyclictest24205-21munin-node11:27:001
30767992510,7cyclictest0-21swapper/112:20:161
30767992510,7cyclictest0-21swapper/109:21:401
30766992525,0cyclictest0-21swapper/008:59:390
3076699250,21cyclictest0-21swapper/009:45:510
3076799248,11cyclictest0-21swapper/107:34:331
30767992413,7cyclictest0-21swapper/109:54:351
3076699243,19cyclictest1497-21rm11:07:000
30766992420,3cyclictest0-21swapper/011:27:130
30766992415,6cyclictest636-21nscd07:24:380
30767992310,6cyclictest0-21swapper/111:31:361
30767992310,10cyclictest100150irq/106-eth1-rx10:24:071
3076699234,12cyclictest0-21swapper/010:14:370
30766992319,2cyclictest8223-21apache210:43:190
30766992317,5cyclictest8223-21apache209:11:370
30766992311,3cyclictest0-21swapper/008:34:330
30766992310,7cyclictest0-21swapper/010:11:000
30766992310,5cyclictest0-21swapper/007:44:390
3076699230,2cyclictest30089-21ssh09:32:450
3076699230,2cyclictest0-21swapper/012:11:330
3076699230,20cyclictest0-21swapper/008:40:250
3076699230,13cyclictest0-21swapper/012:14:330
2311622310,0sleep10-21swapper/110:07:031
3076799224,12cyclictest0-21swapper/109:04:331
30767992212,5cyclictest231ktimersoftd/110:14:521
30767992210,7cyclictest0-21swapper/112:15:241
3076699223,9cyclictest0-21swapper/007:09:320
30766992220,2cyclictest8208-21apache212:05:580
30766992220,1cyclictest0-21swapper/007:34:200
30766992216,5cyclictest8223-21apache211:33:050
30766992210,12cyclictest0-21swapper/012:20:450
3076799218,8cyclictest10367-21perf09:04:201
3076799213,8cyclictest14277-21/usr/sbin/munin12:09:371
30767992114,6cyclictest593-21lldpd10:01:571
30767992110,5cyclictest0-21swapper/108:34:331
30767992110,3cyclictest0-21swapper/112:25:141
30767992110,2cyclictest0-21swapper/112:35:191
3076799210,2cyclictest0-21swapper/110:38:121
3076699212,7cyclictest0-21swapper/012:26:070
30766992119,1cyclictest0-21swapper/010:05:350
30766992116,4cyclictest636-21nscd09:25:570
30766992116,3cyclictest2049-21rm12:39:070
30766992114,6cyclictest8223-21apache211:56:480
30766992110,4cyclictest0-21swapper/008:14:310
30766992110,3cyclictest0-21swapper/011:39:320
3076799205,9cyclictest0-21swapper/107:09:311
3076799204,9cyclictest0-21swapper/108:04:321
3076799201,9cyclictest0-21swapper/107:59:421
30767992018,2cyclictest8208-21apache209:26:051
30767992018,1cyclictest636-21nscd11:04:351
30767992014,4cyclictest0-21swapper/112:09:061
30767992014,3cyclictest24-21ksoftirqd/107:14:401
30767992010,8cyclictest0-21swapper/110:45:081
30767992010,6cyclictest0-21swapper/110:25:511
30767992010,6cyclictest0-21swapper/109:32:221
30767992010,5cyclictest0-21swapper/112:32:171
30767992010,5cyclictest0-21swapper/109:34:281
30767992010,3cyclictest0-21swapper/110:49:261
30767992010,1cyclictest0-21swapper/109:49:261
30767992010,0cyclictest0-21swapper/108:57:451
3076799200,9cyclictest0-21swapper/110:54:381
3076799200,6cyclictest25507-21wc08:19:201
3076699205,8cyclictest0-21swapper/008:19:300
30766992012,5cyclictest8208-21apache210:30:390
30766992010,5cyclictest0-21swapper/011:14:320
30766992010,5cyclictest0-21swapper/009:57:560
30766992010,4cyclictest0-21swapper/009:49:390
3076699200,1cyclictest0-21swapper/011:12:550
178322010,0sleep00-21swapper/010:22:360
3076799198,9cyclictest16373-21apache_processe09:14:321
3076799197,11cyclictest0-21swapper/107:54:321
3076799193,9cyclictest12288-21diskmemload11:20:101
3076799193,13cyclictest0-21swapper/111:34:401
3076799191,3cyclictest0-21swapper/111:53:111
30767991910,5cyclictest0-21swapper/108:29:311
30767991910,4cyclictest0-21swapper/108:09:311
30767991910,3cyclictest0-21swapper/111:13:011
3076699195,6cyclictest12366-21ssh10:36:460
3076699193,3cyclictest0-21swapper/008:49:380
30766991917,1cyclictest313542sleep011:49:220
30766991916,2cyclictest81ktimersoftd/008:05:180
30766991915,4cyclictest8223-21apache211:46:190
30766991911,4cyclictest0-21swapper/010:26:130
30766991910,5cyclictest0-21swapper/012:32:370
30766991910,4cyclictest0-21swapper/007:19:340
30766991910,0cyclictest0-21swapper/009:41:380
3076699190,18cyclictest12288-21diskmemload09:19:370
3076699190,10cyclictest0-21swapper/011:02:380
744721810,0sleep10-21swapper/107:30:131
3076799184,8cyclictest0-21swapper/107:24:321
3076799183,8cyclictest0-21swapper/107:44:351
30767991811,3cyclictest8223-21apache211:59:281
30767991811,2cyclictest0-21swapper/108:24:381
30767991810,5cyclictest0-21swapper/109:09:311
30767991810,4cyclictest0-21swapper/110:39:391
3076699184,11cyclictest0-21swapper/010:45:280
3076699183,10cyclictest0-21swapper/007:54:340
3076699182,3cyclictest0-21swapper/009:14:380
30766991818,0cyclictest81ktimersoftd/007:34:160
3076699181,16cyclictest100150irq/106-eth1-rx09:34:350
30766991811,5cyclictest8223-21apache212:01:290
30766991810,5cyclictest0-21swapper/010:49:310
30766991810,3cyclictest0-21swapper/010:54:380
30766991810,3cyclictest0-21swapper/007:59:320
30766991810,3cyclictest0-21swapper/007:39:310
3076799179,4cyclictest8208-21apache211:01:251
30767991714,2cyclictest8223-21apache211:46:111
30767991710,3cyclictest0-21swapper/108:19:391
30767991710,2cyclictest0-21swapper/111:16:221
30767991710,2cyclictest0-21swapper/107:49:311
30767991710,1cyclictest0-21swapper/108:49:331
30766991710,3cyclictest0-21swapper/009:04:370
30766991710,3cyclictest0-21swapper/007:49:320
30766991710,1cyclictest0-21swapper/008:54:400
3076799163,8cyclictest0-21swapper/109:39:311
30767991610,2cyclictest0-21swapper/108:39:371
3076699162,8cyclictest0-21swapper/008:29:300
30766991612,1cyclictest22395-21missed_timers08:09:350
30766991610,4cyclictest0-21swapper/008:26:380
3076799157,3cyclictest0-21swapper/107:39:411
3076799154,5cyclictest2485-21/usr/sbin/munin07:19:311
30767991510,2cyclictest0-21swapper/111:39:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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