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2026-11-14 - 02:18
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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 Fri Nov 13, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
448622100,3sleep00-21swapper/007:02:380
130452740,1sleep00-21swapper/008:47:410
554927135,31sleep10-21swapper/107:03:131
6137993610,7cyclictest0-21swapper/010:30:530
6138993210,2cyclictest0-21swapper/110:52:221
6138993210,2cyclictest0-21swapper/110:32:571
6138993110,2cyclictest0-21swapper/110:17:531
6137993011,18cyclictest15971-21kworker/0:109:48:420
6138992910,2cyclictest0-21swapper/111:07:181
6137992910,0cyclictest0-21swapper/009:12:440
613899284,23cyclictest0-21swapper/111:53:131
6138992811,15cyclictest0-21swapper/111:08:561
6138992810,2cyclictest0-21swapper/109:24:431
613899280,1cyclictest0-21swapper/109:45:411
6137992810,6cyclictest0-21swapper/010:17:440
613799280,20cyclictest8895-21ssh12:36:100
6138992621,4cyclictest16007-21apache212:12:211
6138992620,4cyclictest16036-21apache211:21:191
613799265,20cyclictest0-21swapper/009:56:120
6137992621,4cyclictest16036-21apache208:01:300
613799260,0cyclictest0-21swapper/010:37:420
613899252,1cyclictest0-21swapper/110:16:251
613799251,2cyclictest0-21swapper/010:33:580
6137992510,7cyclictest0-21swapper/012:23:350
6137992510,7cyclictest0-21swapper/012:08:500
6137992510,1cyclictest0-21swapper/009:41:280
613799250,21cyclictest15971-21kworker/0:110:10:300
6138992422,1cyclictest16036-21apache212:01:521
6138992410,2cyclictest0-21swapper/109:47:591
6138992410,1cyclictest0-21swapper/112:22:191
6138992410,0cyclictest0-21swapper/109:04:341
613899240,3cyclictest0-21swapper/112:25:471
613899240,1cyclictest0-21swapper/112:13:591
6137992422,1cyclictest7215-21rm11:02:430
6137992412,7cyclictest0-21swapper/007:41:130
6137992410,9cyclictest0-21swapper/011:17:360
613899232,4cyclictest0-21swapper/110:23:441
613899231,3cyclictest0-21swapper/109:10:571
6138992312,5cyclictest100150irq/106-eth1-rx11:32:451
6138992310,8cyclictest0-21swapper/107:57:381
6138992310,4cyclictest0-21swapper/110:57:431
613899230,1cyclictest0-21swapper/111:27:521
613799236,16cyclictest15971-21kworker/0:107:54:460
6137992323,0cyclictest0-21swapper/011:01:330
6137992310,9cyclictest0-21swapper/008:22:420
6137992310,4cyclictest0-21swapper/010:12:360
6137992310,2cyclictest0-21swapper/007:09:550
185502230,0sleep00-21swapper/009:02:390
613899225,11cyclictest21486-21/usr/sbin/munin10:37:421
6138992215,5cyclictest0-21swapper/109:27:421
6138992210,3cyclictest0-21swapper/110:12:121
613899220,4cyclictest0-21swapper/109:34:331
613899220,2cyclictest0-21swapper/111:17:061
613799228,13cyclictest13082-21kworker/0:212:18:040
6137992219,1cyclictest0-21swapper/010:27:240
6137992210,6cyclictest0-21swapper/011:27:430
6137992210,3cyclictest0-21swapper/011:42:420
6137992210,1cyclictest0-21swapper/012:12:410
613899216,3cyclictest1199-21runrttasks12:35:151
613899216,10cyclictest0-21swapper/111:47:381
613899213,6cyclictest0-21swapper/110:45:191
6138992110,8cyclictest0-21swapper/111:25:011
6138992110,1cyclictest0-21swapper/110:28:561
613899210,4cyclictest0-21swapper/109:58:551
613799218,2cyclictest16036-21apache209:17:360
613799215,15cyclictest15971-21kworker/0:107:34:420
613799213,17cyclictest0-21swapper/011:36:130
6137992117,4cyclictest0-21swapper/008:33:350
6137992117,3cyclictest31415-21ssh10:07:210
613799211,3cyclictest0-21swapper/012:27:390
6137992111,4cyclictest0-21swapper/007:42:360
6137992110,7cyclictest100250irq/107-eth1-rx11:23:370
6137992110,5cyclictest0-21swapper/011:57:370
6137992110,4cyclictest0-21swapper/008:02:390
903622010,0sleep00-21swapper/009:35:300
613899205,6cyclictest12759-21/usr/sbin/munin07:22:411
613899205,6cyclictest0-21swapper/108:52:441
613899204,8cyclictest0-21swapper/111:42:361
6138992019,1cyclictest6805-21apache207:07:361
6138992017,3cyclictest16036-21apache210:05:321
6138992010,4cyclictest0-21swapper/108:07:381
6138992010,3cyclictest0-21swapper/109:37:381
613899200,3cyclictest0-21swapper/109:53:261
613799208,11cyclictest0-21swapper/009:30:280
6137992017,2cyclictest16007-21apache209:42:440
6137992011,3cyclictest0-21swapper/010:47:450
6137992010,5cyclictest0-21swapper/008:52:440
6137992010,4cyclictest0-21swapper/008:27:360
613799200,2cyclictest0-21swapper/010:42:540
613799200,19cyclictest22858-21kworker/0:207:23:200
229322010,0sleep00-21swapper/008:17:480
2199322010,0sleep00-21swapper/009:08:290
616921910,0sleep10-21swapper/108:28:161
613899194,7cyclictest1199-21runrttasks07:57:261
6138991916,2cyclictest16036-21apache211:41:211
6138991913,2cyclictest6135-21cyclictest09:19:371
6138991910,5cyclictest0-21swapper/112:29:091
6138991910,4cyclictest0-21swapper/112:06:031
613899190,4cyclictest0-21swapper/110:55:191
6137991911,3cyclictest28987-1kworker/u5:009:22:420
6137991910,5cyclictest0-21swapper/011:47:430
6137991910,4cyclictest0-21swapper/007:21:450
613799190,18cyclictest0-21swapper/012:03:200
613899184,9cyclictest0-21swapper/107:32:461
613899183,2cyclictest0-21swapper/108:18:171
6138991811,2cyclictest231ktimersoftd/108:47:411
613899181,12cyclictest0-21swapper/107:17:441
6138991810,8cyclictest0-21swapper/109:12:441
6138991810,6cyclictest0-21swapper/108:12:451
6138991810,6cyclictest0-21swapper/107:37:531
6138991810,4cyclictest0-21swapper/108:57:441
6138991810,4cyclictest0-21swapper/107:27:381
6138991810,3cyclictest0-21swapper/107:47:441
6138991810,1cyclictest0-21swapper/108:37:361
613799185,8cyclictest0-21swapper/011:52:380
613799184,7cyclictest0-21swapper/007:12:360
6137991812,3cyclictest25666-21snmpd09:58:220
6137991810,2cyclictest0-21swapper/009:00:500
6137991810,1cyclictest0-21swapper/011:37:370
1293621810,0sleep00-21swapper/011:11:350
6138991713,4cyclictest0-21swapper/108:46:021
6138991710,5cyclictest0-21swapper/108:04:531
613799179,2cyclictest81ktimersoftd/007:47:390
613799172,9cyclictest0-21swapper/008:42:350
6137991710,3cyclictest0-21swapper/008:11:510
6137991710,2cyclictest0-21swapper/007:27:380
6137991710,1cyclictest0-21swapper/008:39:330
3143621710,0sleep00-21swapper/010:52:300
6138991612,1cyclictest0-21swapper/108:22:381
6138991611,2cyclictest6135-21cyclictest07:42:361
6138991610,4cyclictest0-21swapper/107:12:361
6138991610,1cyclictest0-21swapper/108:32:381
6137991610,3cyclictest0-21swapper/011:12:320
6137991610,3cyclictest0-21swapper/008:12:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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