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2026-04-06 - 00:59
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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 Apr 05, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25207402267191,62sleep00-21swapper/007:05:040
25224852254188,52sleep10-21swapper/107:09:511
179699580,4rtkit-daemon1795-21rtkit-daemon09:30:210
179699580,10rtkit-daemon1795-21rtkit-daemon11:12:140
26126412530,3sleep0161rcuc/010:05:190
26026572530,2sleep12602655-21ssh09:50:251
252260599530,6cyclictest2571460-21diskmemload10:34:481
179699530,3rtkit-daemon0-21swapper/011:23:050
252260599512,9cyclictest2683355-21apt-get11:45:131
252260599503,8cyclictest2708341-21apt-get12:20:131
252260599503,8cyclictest2643938-21apt-get10:50:131
252260599502,5cyclictest2665549-21apt-get11:20:111
252260599492,7cyclictest2608262-21apt-get10:00:131
252260599492,6cyclictest2623033-21apt-get10:20:121
252260599492,5cyclictest2669337-21apt-get11:25:091
252260599491,10cyclictest2693894-21apt-get12:00:111
179699490,3rtkit-daemon1795-21rtkit-daemon07:47:241
252260599481,10cyclictest2553213-21apt-check08:25:101
179699480,3rtkit-daemon1795-21rtkit-daemon09:14:140
252260599472,7cyclictest2651028-21apt-get11:00:121
252260599472,5cyclictest2575461-21apt-get09:15:111
252260599470,15cyclictest2636938-21ssh10:40:021
252260599462,7cyclictest2658332-21/usr/sbin/munin11:10:261
252260599462,6cyclictest2640567-21apt-get10:45:131
252260599462,6cyclictest2626593-21apt-get10:25:151
252260599462,4cyclictest2672893-21apt-get11:30:121
252260599461,9cyclictest2535148-21apt-get07:40:131
252260599451,8cyclictest2571460-21diskmemload09:25:311
252260599451,7cyclictest2571719-21apt-get09:10:141
252260599451,6cyclictest2571460-21diskmemload12:25:491
252260599442,6cyclictest2604941-21apt-get09:55:121
252260599441,5cyclictest2701388-21apt-get12:10:131
252260599432,11cyclictest0-21swapper/110:55:031
252260599431,8cyclictest2571460-21diskmemload10:36:161
252260599431,6cyclictest2571460-21diskmemload10:14:471
252260599422,8cyclictest2571460-21diskmemload09:39:101
252260599422,16cyclictest2529214-21apt-get07:25:121
252260599421,6cyclictest2571460-21diskmemload12:39:351
252260599411,6cyclictest2571460-21diskmemload12:06:061
252260599411,6cyclictest2571460-21diskmemload11:16:051
25340302400,5sleep126-21ksoftirqd/107:35:221
252260599401,7cyclictest2571460-21diskmemload09:24:481
179699390,3rtkit-daemon0-21swapper/012:18:290
179699380,4rtkit-daemon2571460-21diskmemload12:32:551
179699380,3rtkit-daemon0-21swapper/107:10:321
252260599360,6cyclictest2594218-21apt-get09:40:151
179699360,3rtkit-daemon0-21swapper/010:19:261
252260599352,6cyclictest2597930-21apt-get09:45:131
2522605993510,4cyclictest2704804-21apt-get12:15:101
179699350,3rtkit-daemon1795-21rtkit-daemon08:46:240
252260599349,7cyclictest2569610-21date09:05:001
179699340,4rtkit-daemon1795-21rtkit-daemon11:08:570
179699340,3rtkit-daemon0-21swapper/111:44:061
252260599332,7cyclictest2557157-21apt-get08:35:121
252260599332,7cyclictest2525294-21apt-get07:15:121
252260599332,6cyclictest2540991-21apt-get07:55:141
2522605993326,6cyclictest66950irq/132-enp2s010:08:061
179699330,4rtkit-daemon1795-21rtkit-daemon10:59:080
179699330,4rtkit-daemon1795-21rtkit-daemon09:22:140
179699330,3rtkit-daemon1795-21rtkit-daemon12:31:080
179699330,3rtkit-daemon0-21swapper/108:04:100
179699330,3rtkit-daemon0-21swapper/107:15:160
25432182320,4sleep12543220-21cut08:00:161
252260599329,7cyclictest2655716-21ntpq11:05:201
252260599323,9cyclictest2527268-21apt-get07:20:131
252260599323,8cyclictest2686980-21apt-get11:50:151
252260599323,6cyclictest2690434-21apt-get11:55:131
252260599322,6cyclictest2550784-21apt-get08:20:141
252260599322,5cyclictest2546861-21apt-get08:10:131
252260599321,4cyclictest2586581-21apt-get09:30:131
252260599321,12cyclictest2539044-21apt-get07:50:131
179699320,4rtkit-daemon1795-21rtkit-daemon10:11:550
179699320,3rtkit-daemon0-21swapper/111:55:060
179699320,3rtkit-daemon0-21swapper/008:43:371
252260599314,8cyclictest2555201-21apt-get08:30:121
252260599314,8cyclictest2555201-21apt-get08:30:121
252260599312,5cyclictest2563834-21apt-get08:50:131
252260599311,7cyclictest2544912-21apt-get08:05:131
252260599311,11cyclictest2569707-21taskset09:05:141
179699310,3rtkit-daemon0-21swapper/111:33:290
179699310,3rtkit-daemon0-21swapper/109:45:150
179699310,3rtkit-daemon0-21swapper/109:36:010
179699310,3rtkit-daemon0-21swapper/107:20:030
27140452300,4sleep00-21swapper/012:27:140
252260599309,6cyclictest2532998-21date07:35:011
252260599302,5cyclictest2565784-21apt-get08:55:121
252260599301,6cyclictest2561483-21apt-get08:45:121
252260599301,5cyclictest0-21swapper/111:36:171
179699300,3rtkit-daemon1795-21rtkit-daemon09:09:310
179699300,3rtkit-daemon0-21swapper/108:30:260
179699300,3rtkit-daemon0-21swapper/108:30:260
179699300,3rtkit-daemon0-21swapper/108:10:500
179699290,3rtkit-daemon0-21swapper/109:56:500
179699290,3rtkit-daemon0-21swapper/108:06:300
179699280,3rtkit-daemon0-21swapper/108:58:080
179699280,3rtkit-daemon0-21swapper/107:37:220
179699280,19rtkit-daemon2522593-21cyclictest10:15:160
252259899270,6cyclictest0-21swapper/007:53:340
179699270,1rtkit-daemon1795-21rtkit-daemon12:37:090
26381662260,2sleep02638381-21/usr/sbin/munin10:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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