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2026-04-24 - 18:00
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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 rackcslot2.osadl.org (updated Fri Apr 24, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
457926957,8sleep00-21swapper/007:08:450
434626947,17sleep10-21swapper/107:06:211
4795993410,23cyclictest0-21swapper/109:46:031
479499310,30cyclictest0-21swapper/009:07:420
4794993010,2cyclictest0-21swapper/010:42:000
4794993010,13cyclictest0-21swapper/011:28:070
479599294,3cyclictest91rcu_preempt11:23:561
4795992924,2cyclictest24-21ksoftirqd/109:24:251
4795992828,0cyclictest0-21swapper/111:10:001
4795992810,0cyclictest0-21swapper/109:33:321
4794992710,10cyclictest0-21swapper/011:01:370
4795992624,1cyclictest24-21ksoftirqd/107:14:061
4795992612,7cyclictest14634-21apache212:12:161
4795992611,1cyclictest0-21swapper/111:48:411
4795992610,10cyclictest0-21swapper/107:54:221
479499266,19cyclictest0-21swapper/010:12:290
4794992622,1cyclictest0-21swapper/010:38:010
4794992610,6cyclictest0-21swapper/009:44:160
828522510,0sleep10-21swapper/109:35:201
4795992518,5cyclictest802-21apache208:00:511
4795992510,7cyclictest0-21swapper/111:24:401
479499254,20cyclictest18674-21diskmemload11:43:400
4794992510,9cyclictest0-21swapper/008:07:030
4794992510,8cyclictest0-21swapper/007:59:320
4795992422,1cyclictest231ktimersoftd/111:50:561
4795992418,3cyclictest24-21ksoftirqd/112:04:181
4795992416,5cyclictest14634-21apache210:44:471
4795992416,0cyclictest8275-21kworker/u4:110:18:341
4794992422,1cyclictest7331-21pluginstate09:34:230
479499242,14cyclictest0-21swapper/009:12:010
4794992420,3cyclictest14650-21apache211:57:030
479499240,3cyclictest0-21swapper/011:06:010
479599234,16cyclictest1967-21rm10:50:091
4795992321,1cyclictest24-21ksoftirqd/111:39:241
4795992318,2cyclictest24-21ksoftirqd/110:55:181
479599231,3cyclictest91rcu_preempt10:04:171
4795992311,1cyclictest0-21swapper/110:28:521
4795992310,6cyclictest0-21swapper/112:21:331
479499235,9cyclictest0-21swapper/007:54:170
4794992321,1cyclictest636-21nscd11:20:420
4794992320,2cyclictest14650-21apache209:25:490
4794992311,5cyclictest0-21swapper/011:31:280
479599224,9cyclictest0-21swapper/107:19:181
479599222,19cyclictest12395-21sshd08:49:311
4795992216,3cyclictest14650-21apache208:44:281
4795992211,5cyclictest0-21swapper/111:35:061
4795992210,5cyclictest0-21swapper/107:49:171
4795992210,4cyclictest0-21swapper/112:29:161
479599220,9cyclictest0-21swapper/108:04:171
479599220,17cyclictest0-21swapper/109:17:381
4794992217,3cyclictest7-21ksoftirqd/007:39:240
4794992214,4cyclictest4792-21cyclictest12:05:510
4794992210,6cyclictest0-21swapper/010:51:540
4794992210,10cyclictest0-21swapper/010:21:220
1288422210,0sleep10-21swapper/112:28:581
479599218,8cyclictest0-21swapper/108:19:241
479599215,2cyclictest91rcu_preempt07:41:021
479599214,9cyclictest0-21swapper/109:54:171
479599214,2cyclictest91rcu_preempt09:49:201
4795992121,0cyclictest0-21swapper/107:46:551
4795992114,2cyclictest231ktimersoftd/111:07:391
479599211,12cyclictest22244-21munin-run11:59:051
4795992110,4cyclictest0-21swapper/109:04:181
479599210,2cyclictest91rcu_preempt10:10:251
479499212,15cyclictest0-21swapper/008:39:220
479499212,13cyclictest0-21swapper/011:18:400
4794992118,2cyclictest81ktimersoftd/009:19:200
4794992116,3cyclictest947-21sendmail-mta07:15:530
4794992114,5cyclictest19139-21kworker/0:012:15:500
479499211,2cyclictest0-21swapper/010:56:590
4794992111,6cyclictest0-21swapper/008:24:250
4794992111,0cyclictest0-21swapper/012:38:150
4794992110,9cyclictest0-21swapper/009:40:120
4794992110,8cyclictest0-21swapper/010:05:550
4794992110,7cyclictest0-21swapper/012:28:070
4794992110,7cyclictest0-21swapper/012:12:220
4794992110,6cyclictest0-21swapper/011:34:150
4794992110,6cyclictest0-21swapper/010:29:490
4794992110,4cyclictest0-21swapper/011:44:170
479599204,8cyclictest0-21swapper/108:34:211
4795992017,2cyclictest0-21swapper/111:14:171
4795992016,2cyclictest24-21ksoftirqd/108:31:511
4795992013,3cyclictest0-21swapper/111:30:161
4795992010,7cyclictest0-21swapper/108:59:171
4795992010,5cyclictest26920-21sh10:41:081
4795992010,5cyclictest0-21swapper/112:34:591
4795992010,5cyclictest0-21swapper/109:39:151
4795992010,3cyclictest0-21swapper/110:59:321
479599200,8cyclictest0-21swapper/107:29:181
479599200,4cyclictest91rcu_preempt07:24:241
479499206,8cyclictest0-21swapper/011:59:150
479499203,7cyclictest32566-21latency08:19:200
4794992011,4cyclictest636-21nscd11:49:510
4794992010,6cyclictest0-21swapper/012:19:180
4794992010,6cyclictest0-21swapper/010:44:160
4794992010,5cyclictest0-21swapper/011:13:560
4794992010,5cyclictest0-21swapper/007:24:240
4794992010,4cyclictest0-21swapper/009:18:390
4794992010,2cyclictest0-21swapper/009:52:050
479499200,16cyclictest0-21swapper/009:30:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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