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2026-05-12 - 17:44
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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 Tue May 12, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24699362259186,58sleep10-21swapper/107:07:031
24700722254178,60sleep00-21swapper/007:08:320
257019421040,3sleep00-21swapper/010:16:430
179699720,4rtkit-daemon1795-21rtkit-daemon08:48:090
24787312640,6sleep12478733-21latency_hist07:30:011
179699580,4rtkit-daemon1795-21rtkit-daemon09:09:500
25480772570,3sleep10-21swapper/109:47:241
2470353995211,12cyclictest2638508-21apt-get11:50:120
179699520,4rtkit-daemon1795-21rtkit-daemon08:41:120
25631512510,4sleep00-21swapper/010:07:100
179699510,4rtkit-daemon1795-21rtkit-daemon08:19:440
179699510,4rtkit-daemon1795-21rtkit-daemon08:19:430
179699510,4rtkit-daemon1795-21rtkit-daemon07:19:490
179699510,3rtkit-daemon1795-21rtkit-daemon11:20:180
2470353995013,11cyclictest2576680-21/usr/sbin/munin10:25:230
179699500,4rtkit-daemon1795-21rtkit-daemon07:28:280
179699500,3rtkit-daemon1795-21rtkit-daemon10:32:220
2470353994914,10cyclictest2518672-21diskmemload10:57:440
2470353994910,21cyclictest2619828-21apt-get11:25:140
179699490,4rtkit-daemon1795-21rtkit-daemon07:10:490
26715382480,8sleep126-21ksoftirqd/112:34:521
247035399489,10cyclictest2586532-21sed10:40:000
179699480,4rtkit-daemon1795-21rtkit-daemon11:55:520
179699480,3rtkit-daemon1795-21rtkit-daemon09:02:090
2470353994714,11cyclictest2535215-21/usr/sbin/munin09:30:200
179699470,4rtkit-daemon1795-21rtkit-daemon08:33:200
247035399468,11cyclictest2557040-21cnf-update-db10:00:020
2470353994613,11cyclictest2518672-21diskmemload10:11:500
179699460,4rtkit-daemon1795-21rtkit-daemon08:56:071
247035399458,21cyclictest2604961-21apt-get11:05:140
2470353994513,13cyclictest2522109-21ssh09:14:000
2470353994513,10cyclictest2518672-21diskmemload12:03:370
2470353994513,10cyclictest2518672-21diskmemload09:51:440
2470353994512,11cyclictest2518672-21diskmemload12:35:060
2470353994512,11cyclictest2518672-21diskmemload11:31:160
2470353994512,10cyclictest2518672-21diskmemload12:18:040
2470353994512,10cyclictest2518672-21diskmemload11:48:550
2470353994511,11cyclictest2518672-21diskmemload10:49:080
2470353994511,10cyclictest2518672-21diskmemload09:43:310
2470353994510,10cyclictest2518672-21diskmemload09:15:220
247035399449,10cyclictest2493606-21systemctl08:05:230
247035399448,11cyclictest2545749-21apt-get09:45:120
2470353994413,11cyclictest2518672-21diskmemload12:21:230
247035399439,13cyclictest0-21swapper/011:36:360
2470353994313,11cyclictest2518672-21diskmemload10:52:340
2470353994313,10cyclictest2518672-21diskmemload11:02:560
2470353994312,14cyclictest2476397-21taskset07:21:390
2470353994312,11cyclictest2526724-21seq09:20:100
2470353994312,10cyclictest2615206-21ssh11:18:490
2470353994310,9cyclictest2518672-21diskmemload11:40:150
247035399427,20cyclictest2490682-21apt-get08:00:140
2470353994213,13cyclictest2664677-21seq12:25:170
2470353994212,11cyclictest2538782-21ssh09:35:180
2470353994211,10cyclictest2649999-21/usr/sbin/munin12:05:200
2470353994211,10cyclictest2589538-21ssh10:43:560
247035399419,20cyclictest2656503-21ssh12:14:490
247035399418,11cyclictest2518672-21diskmemload12:30:240
2470353994112,10cyclictest2610841-21ssh11:12:160
247035399409,10cyclictest2482449-21flock07:38:190
247035399408,10cyclictest2494997-21cpu08:10:130
2470353994011,9cyclictest2573455-21taskset10:20:300
2470353994011,11cyclictest2532956-21seq09:28:070
247035399399,11cyclictest2485870-21sed07:45:250
247035399398,10cyclictest2554294-21sed09:55:250
2470353993911,13cyclictest2514645-21seq08:59:010
2470353993911,11cyclictest2504742-21seq08:35:010
2470353993910,14cyclictest2479366-21seq07:30:200
179699390,9rtkit-daemon2647322-21ssh12:00:461
247035399389,11cyclictest2483952-21sed07:40:240
247035399388,14cyclictest2489324-21sed07:55:180
247035399387,12cyclictest2500835-21latency_hist08:25:000
179699380,3rtkit-daemon0-21swapper/110:50:501
247035399378,11cyclictest2501457-21sed08:25:190
247035399369,10cyclictest2511612-21expr08:50:190
2470353993623,7cyclictest2486762-21apt-get07:50:140
179699360,3rtkit-daemon0-21swapper/010:34:001
179699350,3rtkit-daemon0-21swapper/007:58:501
179699340,5rtkit-daemon2525818-21ssh09:18:351
179699340,4rtkit-daemon1795-21rtkit-daemon09:55:271
179699340,3rtkit-daemon0-21swapper/011:13:441
179699340,3rtkit-daemon0-21swapper/008:44:291
2470358993313,6cyclictest26-21ksoftirqd/109:25:141
179699330,3rtkit-daemon0-21swapper/010:21:581
179699330,3rtkit-daemon0-21swapper/008:17:171
179699330,3rtkit-daemon0-21swapper/008:17:161
247035899327,5cyclictest26-21ksoftirqd/109:50:141
179699320,4rtkit-daemon1795-21rtkit-daemon08:51:141
179699320,4rtkit-daemon1795-21rtkit-daemon07:51:051
179699320,3rtkit-daemon0-21swapper/012:23:421
179699320,3rtkit-daemon0-21swapper/011:38:101
179699320,3rtkit-daemon0-21swapper/011:16:011
179699320,3rtkit-daemon0-21swapper/008:20:041
179699320,3rtkit-daemon0-21swapper/007:30:361
179699310,3rtkit-daemon0-21swapper/011:22:191
179699310,3rtkit-daemon0-21swapper/009:31:361
179699310,3rtkit-daemon0-21swapper/009:06:291
179699310,3rtkit-daemon0-21swapper/007:35:371
179699300,4rtkit-daemon1795-21rtkit-daemon12:10:351
179699300,4rtkit-daemon1795-21rtkit-daemon10:57:401
179699300,4rtkit-daemon1795-21rtkit-daemon10:04:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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