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2026-05-10 - 20:02
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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 Sun May 10, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
887472266207,45sleep00-21swapper/007:06:300
887132261183,43sleep10-21swapper/107:06:091
15132921550,4sleep00-21swapper/009:25:480
179699690,3rtkit-daemon1795-21rtkit-daemon09:48:321
2890472630,4sleep00-21swapper/012:30:180
1693102600,1sleep00-21swapper/009:50:170
2836912590,4sleep10-21swapper/112:23:511
2836912590,4sleep10-21swapper/112:23:501
179699560,4rtkit-daemon1795-21rtkit-daemon08:44:411
179699540,4rtkit-daemon1795-21rtkit-daemon12:16:161
179699520,4rtkit-daemon1795-21rtkit-daemon12:05:151
179699510,4rtkit-daemon1795-21rtkit-daemon07:12:101
179699510,3rtkit-daemon1795-21rtkit-daemon07:20:141
179699500,4rtkit-daemon1795-21rtkit-daemon11:40:510
2927642480,5sleep00-21swapper/012:35:170
179699480,4rtkit-daemon1795-21rtkit-daemon08:47:121
179699470,3rtkit-daemon1795-21rtkit-daemon08:23:431
179699460,4rtkit-daemon1795-21rtkit-daemon07:18:571
179699460,3rtkit-daemon1795-21rtkit-daemon09:53:221
179699460,3rtkit-daemon1795-21rtkit-daemon09:34:051
179699460,3rtkit-daemon1795-21rtkit-daemon07:41:011
179699460,3rtkit-daemon1795-21rtkit-daemon07:39:211
179699410,3rtkit-daemon0-21swapper/010:22:570
89196994010,5cyclictest13-21ksoftirqd/009:40:000
179699380,3rtkit-daemon0-21swapper/110:32:131
179699380,3rtkit-daemon0-21swapper/009:01:480
8920199370,35cyclictest0-21swapper/111:50:161
179699370,3rtkit-daemon0-21swapper/109:29:281
179699360,3rtkit-daemon0-21swapper/008:53:230
179699340,4rtkit-daemon1795-21rtkit-daemon11:35:220
179699340,3rtkit-daemon0-21swapper/107:50:331
179699340,3rtkit-daemon0-21swapper/008:53:301
8919699335,3cyclictest141rcu_preempt09:15:010
179699330,3rtkit-daemon0-21swapper/110:27:270
179699330,3rtkit-daemon0-21swapper/110:04:200
179699330,3rtkit-daemon0-21swapper/108:24:180
179699330,3rtkit-daemon0-21swapper/010:10:171
179699330,3rtkit-daemon0-21swapper/008:10:461
1677202330,4sleep00-21swapper/009:48:160
89201993230,1cyclictest0-21swapper/108:05:101
89196993224,6cyclictest114024-21taskset08:09:500
8919699321,7cyclictest221238-21apt-get11:00:130
179699320,4rtkit-daemon1795-21rtkit-daemon10:11:550
179699320,3rtkit-daemon1795-21rtkit-daemon11:55:220
179699320,3rtkit-daemon0-21swapper/107:31:260
89201993128,2cyclictest66950irq/132-enp2s012:38:451
89196993116,4cyclictest13-21ksoftirqd/009:35:000
8919699310,8cyclictest172385-21apt-get09:55:140
2315912310,2sleep00-21swapper/011:14:090
179699310,3rtkit-daemon0-21swapper/112:08:110
179699310,3rtkit-daemon0-21swapper/112:04:190
179699310,3rtkit-daemon0-21swapper/108:14:550
179699310,3rtkit-daemon0-21swapper/107:36:190
179699310,3rtkit-daemon0-21swapper/010:22:241
89201993027,2cyclictest66950irq/132-enp2s011:40:021
89201993017,3cyclictest288406-21taskset12:30:011
89196993024,4cyclictest287756-21ssh12:28:460
89196993015,4cyclictest13-21ksoftirqd/007:20:220
179699300,3rtkit-daemon1795-21rtkit-daemon09:20:141
8920199294,13cyclictest26-21ksoftirqd/112:00:211
8920199290,7cyclictest177540-21grep10:00:251
8920199290,7cyclictest124984-21kernelversion08:35:191
8919699297,5cyclictest13-21ksoftirqd/010:15:210
89196992912,2cyclictest141rcu_preempt07:55:200
89196992910,3cyclictest141rcu_preempt08:45:110
8919699290,7cyclictest137943-21diskmemload09:20:140
179699290,3rtkit-daemon1795-21rtkit-daemon11:25:280
179699290,3rtkit-daemon0-21swapper/111:20:220
179699290,3rtkit-daemon0-21swapper/011:26:191
179699290,3rtkit-daemon0-21swapper/011:20:351
8920199286,6cyclictest66950irq/132-enp2s011:55:021
89201992824,2cyclictest66950irq/132-enp2s011:19:211
89201992815,2cyclictest0-21swapper/110:09:551
89201992814,9cyclictest243399-21apt-get11:30:151
8920199280,8cyclictest207713-21timerwakeupswit10:40:251
8919699289,5cyclictest13-21ksoftirqd/011:30:060
8919699288,4cyclictest13-21ksoftirqd/009:41:280
8919699281,8cyclictest137943-21diskmemload12:15:140
8919699281,8cyclictest137943-21diskmemload10:05:140
89196992813,4cyclictest13-21ksoftirqd/010:40:370
89196992811,4cyclictest13-21ksoftirqd/008:15:220
179699280,4rtkit-daemon1795-21rtkit-daemon11:49:550
179699280,4rtkit-daemon0-21swapper/107:29:480
179699280,3rtkit-daemon1795-21rtkit-daemon08:44:260
179699280,3rtkit-daemon0-21swapper/110:52:480
179699280,3rtkit-daemon0-21swapper/010:26:241
89201992724,2cyclictest250195-21kworker/1:211:49:101
8919699274,5cyclictest13-21ksoftirqd/007:15:020
8919699272,8cyclictest13-21ksoftirqd/011:05:170
89196992715,3cyclictest13-21ksoftirqd/011:53:460
8919699271,3cyclictest141rcu_preempt11:15:130
89196992712,3cyclictest13-21ksoftirqd/010:47:490
89196992712,2cyclictest141rcu_preempt10:32:210
89196992710,3cyclictest13-21ksoftirqd/010:35:500
8919699262,7cyclictest13-21ksoftirqd/009:15:240
89196992613,3cyclictest13-21ksoftirqd/012:10:360
89196992612,3cyclictest13-21ksoftirqd/007:49:570
89196992610,2cyclictest141rcu_preempt10:55:370
8919699260,7cyclictest13-21ksoftirqd/008:25:180
179699260,3rtkit-daemon0-21swapper/108:37:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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