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2026-06-01 - 19:55
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Mon Jun 01, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9913132289248,27sleep10-21swapper/107:08:151
9914192262184,20sleep00-21swapper/007:09:220
179699580,4rtkit-daemon1795-21rtkit-daemon08:01:130
179699560,4rtkit-daemon1795-21rtkit-daemon11:53:261
179699540,3rtkit-daemon1795-21rtkit-daemon08:34:590
179699520,4rtkit-daemon1795-21rtkit-daemon10:57:461
179699520,4rtkit-daemon1795-21rtkit-daemon09:22:340
179699520,20rtkit-daemon991749-21apt-get07:10:121
179699500,4rtkit-daemon1795-21rtkit-daemon11:36:330
179699500,4rtkit-daemon1795-21rtkit-daemon11:26:200
179699500,4rtkit-daemon1795-21rtkit-daemon07:12:190
179699500,3rtkit-daemon1795-21rtkit-daemon08:55:220
179699490,3rtkit-daemon1795-21rtkit-daemon08:46:110
179699480,3rtkit-daemon1795-21rtkit-daemon09:04:560
99163099442,12cyclictest1021785-21python308:25:020
179699430,3rtkit-daemon1795-21rtkit-daemon07:21:431
11069482420,1sleep00-21swapper/010:37:270
99163099408,8cyclictest13-21ksoftirqd/012:05:000
99163099383,6cyclictest13-21ksoftirqd/007:25:020
11897072380,22sleep10-21swapper/112:28:291
99163099373,7cyclictest13-21ksoftirqd/009:55:000
179699370,4rtkit-daemon0-21swapper/110:13:521
179699370,3rtkit-daemon0-21swapper/110:41:011
179699360,4rtkit-daemon1795-21rtkit-daemon11:03:030
179699360,3rtkit-daemon1795-21rtkit-daemon09:05:230
99163099352,7cyclictest13-21ksoftirqd/010:20:010
179699350,5rtkit-daemon1057448-21ssh09:31:071
179699350,4rtkit-daemon1795-21rtkit-daemon09:19:090
179699350,3rtkit-daemon0-21swapper/110:24:371
99163099340,8cyclictest13-21ksoftirqd/012:15:010
99163099336,10cyclictest1065405-21rm09:42:130
99163099335,7cyclictest13-21ksoftirqd/010:55:230
99163099334,9cyclictest1185285-21ssh12:21:560
99163099334,9cyclictest1079862-21sh10:01:190
99163099334,10cyclictest1061108-21sh09:35:390
99163099333,9cyclictest1133026-21sh11:13:080
99163099332,7cyclictest13-21ksoftirqd/011:05:230
99163099332,13cyclictest1068226-21/usr/sbin/munin09:45:250
99163099331,8cyclictest1051907-21apt-get09:25:120
99163099330,8cyclictest1145276-21apt-get11:30:130
179699330,4rtkit-daemon1795-21rtkit-daemon07:53:070
179699330,3rtkit-daemon1795-21rtkit-daemon11:47:570
179699330,3rtkit-daemon1795-21rtkit-daemon09:53:491
179699330,3rtkit-daemon0-21swapper/111:57:110
99163099328,7cyclictest66950irq/132-enp2s010:30:490
99163099328,7cyclictest66950irq/132-enp2s010:30:480
99163099324,7cyclictest13-21ksoftirqd/012:25:150
99163099323,14cyclictest1074951-21cat09:55:200
99163099321,7cyclictest13-21ksoftirqd/008:55:020
99163099320,9cyclictest13-21ksoftirqd/012:20:000
179699320,4rtkit-daemon1795-21rtkit-daemon09:13:280
179699320,3rtkit-daemon0-21swapper/011:15:501
179699320,3rtkit-daemon0-21swapper/008:22:431
179699320,3rtkit-daemon0-21swapper/007:36:561
99163099319,9cyclictest13-21ksoftirqd/010:10:010
99163099315,7cyclictest13-21ksoftirqd/010:50:130
99163099313,7cyclictest13-21ksoftirqd/010:25:150
99163099313,7cyclictest13-21ksoftirqd/008:15:190
99163099312,7cyclictest13-21ksoftirqd/007:30:240
99163099312,7cyclictest1190691-21apt-get12:30:120
179699310,4rtkit-daemon1795-21rtkit-daemon11:35:191
179699310,3rtkit-daemon1795-21rtkit-daemon11:20:050
179699310,3rtkit-daemon1795-21rtkit-daemon11:18:590
179699310,3rtkit-daemon1795-21rtkit-daemon10:30:121
179699310,3rtkit-daemon1795-21rtkit-daemon10:30:111
179699310,3rtkit-daemon1795-21rtkit-daemon08:39:350
179699310,3rtkit-daemon0-21swapper/011:10:291
179699310,3rtkit-daemon0-21swapper/009:09:291
179699310,3rtkit-daemon0-21swapper/008:56:231
991633993028,1cyclictest18150irq/39-mmc010:27:571
991633993018,6cyclictest1030350-21apt-get08:45:151
99163099307,6cyclictest13-21ksoftirqd/009:30:100
99163099304,7cyclictest13-21ksoftirqd/007:25:200
99163099303,7cyclictest13-21ksoftirqd/011:50:240
99163099303,7cyclictest13-21ksoftirqd/010:20:110
99163099303,7cyclictest13-21ksoftirqd/007:40:120
99163099302,7cyclictest13-21ksoftirqd/010:10:140
99163099301,6cyclictest13-21ksoftirqd/011:40:220
99163099300,7cyclictest1108430-21apt-get10:40:120
179699300,3rtkit-daemon0-21swapper/011:28:131
179699300,3rtkit-daemon0-21swapper/007:41:101
99163099290,8cyclictest1002096-21apt-get07:35:130
99163099290,7cyclictest1172040-21cut12:05:180
179699290,4rtkit-daemon1795-21rtkit-daemon09:10:281
179699290,3rtkit-daemon0-21swapper/012:21:271
179699290,3rtkit-daemon0-21swapper/008:32:501
991633992825,2cyclictest1079466-1kworker/1:0H10:05:431
99163099284,5cyclictest161rcuc/010:46:020
99163099282,6cyclictest13-21ksoftirqd/008:10:140
99163099280,7cyclictest1029452-21sed08:40:230
179699280,3rtkit-daemon0-21swapper/009:00:161
179699280,3rtkit-daemon0-21swapper/008:39:551
11954862280,4chrt1195479-21ssh12:35:241
10287822280,3sleep11028781-21head08:40:161
99163099272,7cyclictest13-21ksoftirqd/008:05:180
99163099270,9cyclictest1194579-21seq12:35:140
99163099270,6cyclictest1006076-21apt-get07:45:130
179699270,3rtkit-daemon0-21swapper/008:29:431
179699270,3rtkit-daemon0-21swapper/007:52:371
99163399262,11cyclictest1162447-21kworker/u8:012:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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