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2026-08-17 - 07:48
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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 rack3slot0.osadl.org (updated Mon Aug 17, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165402980,0sleep20-21swapper/223:14:182
244092830,12sleep685150irq/25-em1-rx-021:51:176
248442780,0sleep70-21swapper/721:33:157
149492700,0sleep20-21swapper/222:23:242
85112680,0sleep70-21swapper/723:10:157
297092600,0sleep20-21swapper/223:40:292
88832560,1sleep68884-21grep23:51:556
88832560,1sleep68884-21grep23:51:556
88752530,1sleep68878-21bash21:21:296
153312520,0sleep30-21swapper/300:15:543
31732510,2sleep12128399cyclictest23:29:551
140202510,2sleep72130199cyclictest22:23:217
210942500,1sleep121092-21bash21:20:281
2078325025,8sleep40-21swapper/419:01:314
9392490,0sleep10-21swapper/122:20:511
321762490,0sleep00-21swapper/000:24:080
19242490,1sleep41923-21bash00:04:184
2101524735,8sleep70-21swapper/719:04:467
55042460,1sleep11-21systemd21:25:011
269242460,0sleep50-21swapper/521:55:085
311882450,2sleep52129999cyclictest23:13:175
321592440,1sleep532153-21sshd23:33:195
262592430,0sleep40-21swapper/400:20:124
228442430,0sleep20-21swapper/223:50:542
228442430,0sleep20-21swapper/223:50:542
67752420,1sleep46757-21sshd21:39:294
4722420,0sleep50-21swapper/521:46:195
41062420,0sleep10-21swapper/100:11:361
278742420,2sleep42129899cyclictest21:13:344
2105324231,8sleep50-21swapper/519:05:165
2092624231,8sleep30-21swapper/319:03:303
196362420,0sleep30-21swapper/322:21:493
189222420,0sleep40-21swapper/421:49:144
151582420,0sleep30-21swapper/322:19:493
11942420,1sleep61197-21kworker/u16:123:11:346
75722410,0sleep00-21swapper/023:30:100
327612410,0sleep40-21swapper/421:30:084
314562410,0sleep70-21swapper/700:16:467
279332410,0sleep00-21swapper/022:16:500
23322400,0sleep20-21swapper/223:40:452
2102724029,8sleep10-21swapper/119:04:561
1860324028,8sleep20-21swapper/219:00:412
15202400,0sleep20-21swapper/200:09:452
38482390,0sleep40-21swapper/421:57:234
316952390,0sleep30-21swapper/321:26:233
2107723926,9sleep00-21swapper/019:05:360
2080423927,8sleep60-21swapper/619:01:496
181432390,0sleep60-21swapper/623:27:046
91492380,0sleep30-21swapper/321:43:133
197292380,0sleep40-21swapper/400:32:294
189622370,1sleep2758-21runrttasks22:12:432
108452340,2sleep62130099cyclictest21:34:196
21297992318,3cyclictest41-21ksoftirqd/322:57:243
21297992117,3cyclictest41-21ksoftirqd/300:13:103
21297992116,3cyclictest41-21ksoftirqd/323:07:363
21297992116,3cyclictest41-21ksoftirqd/321:14:313
21297992115,4cyclictest41-21ksoftirqd/321:22:233
21297992115,3cyclictest41-21ksoftirqd/322:06:323
21297992110,1cyclictest41-21ksoftirqd/300:35:033
2130199200,19cyclictest17158-21kworker/7:523:53:497
2130199200,19cyclictest17158-21kworker/7:523:53:497
21297992015,3cyclictest41-21ksoftirqd/322:28:213
21275992015,1cyclictest9-21ksoftirqd/022:29:110
21275992013,5cyclictest9-21ksoftirqd/021:47:500
317022190,0sleep70-21swapper/722:08:007
269662190,0sleep60-21swapper/623:16:386
21275991915,1cyclictest9-21ksoftirqd/022:22:140
21275991915,1cyclictest9-21ksoftirqd/021:15:520
21275991913,4cyclictest9-21ksoftirqd/000:06:000
73412180,2sleep42129899cyclictest23:02:514
58872180,1sleep15881-21sshd22:30:121
224492180,0sleep50-21swapper/522:18:235
21297991816,2cyclictest41-21ksoftirqd/321:57:493
21297991816,1cyclictest41-21ksoftirqd/322:40:483
21297991816,1cyclictest41-21ksoftirqd/322:40:383
21297991816,1cyclictest41-21ksoftirqd/300:21:433
21297991815,1cyclictest41-21ksoftirqd/300:10:073
21297991814,3cyclictest41-21ksoftirqd/323:37:503
21297991814,3cyclictest41-21ksoftirqd/322:47:313
21275991814,3cyclictest9-21ksoftirqd/021:10:580
21275991814,1cyclictest9-21ksoftirqd/000:05:110
2129799173,1cyclictest41-21ksoftirqd/323:31:013
21297991716,1cyclictest41-21ksoftirqd/323:51:293
21297991716,1cyclictest41-21ksoftirqd/323:51:293
21297991716,1cyclictest41-21ksoftirqd/322:34:103
21297991716,1cyclictest41-21ksoftirqd/322:10:593
21297991715,2cyclictest41-21ksoftirqd/322:02:313
21297991715,1cyclictest41-21ksoftirqd/323:23:583
21297991715,1cyclictest41-21ksoftirqd/322:54:353
21297991715,1cyclictest41-21ksoftirqd/321:36:343
21297991715,1cyclictest41-21ksoftirqd/321:16:043
21297991714,1cyclictest1844-21nfsd23:14:293
21297991713,3cyclictest41-21ksoftirqd/300:26:383
21297991713,1cyclictest41-21ksoftirqd/323:40:593
21297991713,1cyclictest41-21ksoftirqd/323:26:013
21297991713,1cyclictest41-21ksoftirqd/321:08:163
21275991715,1cyclictest9-21ksoftirqd/023:05:410
21275991715,1cyclictest9-21ksoftirqd/022:42:500
21275991715,1cyclictest9-21ksoftirqd/022:32:250
21275991715,1cyclictest9-21ksoftirqd/022:15:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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