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2026-03-13 - 17:58
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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 Fri Mar 13, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33610312257187,55sleep10-21swapper/107:09:481
33608602251212,25sleep00-21swapper/007:07:560
35206242650,5sleep10-21swapper/111:45:171
336114099643,9cyclictest3369714-21apt-get07:30:120
336114099642,7cyclictest3477536-21apt-get10:45:130
336114099631,18cyclictest3527364-21apt-get11:55:130
34855692620,3sleep00-21swapper/010:55:220
33682782570,6sleep00-21swapper/007:25:190
336114099544,7cyclictest3401072-21apt-get08:50:150
336114099543,6cyclictest3445503-21apt-get10:00:110
336114099533,5cyclictest3509757-21apt-get11:30:120
336114099531,12cyclictest3427684-21apt-get09:35:130
336114099522,6cyclictest3523910-21apt-get11:50:110
336114099521,7cyclictest3535444-21ntp_states12:05:190
336114099511,7cyclictest3434850-21apt-get09:45:140
3361140995110,5cyclictest3555624-21apt-get12:35:120
179699510,3rtkit-daemon1795-21rtkit-daemon09:53:151
336114099509,4cyclictest3408685-21diskmemload11:10:220
336114099502,9cyclictest3408685-21diskmemload11:25:190
336114099492,8cyclictest3481022-21apt-get10:50:120
3361140994911,5cyclictest3408685-21diskmemload11:04:240
179699490,4rtkit-daemon1795-21rtkit-daemon10:05:390
336114099481,7cyclictest3381526-21apt-get08:00:110
179699480,4rtkit-daemon1795-21rtkit-daemon11:13:371
179699480,3rtkit-daemon1795-21rtkit-daemon09:19:580
179699470,4rtkit-daemon1795-21rtkit-daemon09:59:531
179699470,4rtkit-daemon1795-21rtkit-daemon09:59:521
336114099462,8cyclictest3408685-21diskmemload10:38:230
336114099452,8cyclictest3408685-21diskmemload12:30:100
336114099451,8cyclictest3408685-21diskmemload12:20:340
179699450,3rtkit-daemon1795-21rtkit-daemon09:43:031
179699450,3rtkit-daemon1795-21rtkit-daemon08:14:360
34327952440,2sleep03432796-21rm09:40:490
336114099441,9cyclictest3408685-21diskmemload12:01:530
179699440,3rtkit-daemon1795-21rtkit-daemon08:24:521
336114099431,8cyclictest3408685-21diskmemload11:06:340
336114099431,8cyclictest3408685-21diskmemload09:58:340
336114099431,8cyclictest3408685-21diskmemload09:58:340
336114099393,11cyclictest3361315-21apt-get07:10:120
336114099392,6cyclictest3474129-21apt-get10:40:120
336114099390,15cyclictest850-21runrttasks07:21:080
33631212380,1sleep10-21swapper/107:14:591
336114099382,8cyclictest3466883-21apt-get10:30:140
336114099382,6cyclictest3460031-21diskstats10:20:140
336114099382,10cyclictest3499140-21apt-get11:15:230
3361140993810,6cyclictest3379088-21seq07:52:210
336114499373,9cyclictest26-21ksoftirqd/111:45:011
3361140993714,3cyclictest3363913-21cpuspeed07:15:130
3361140993712,6cyclictest3441758-21cron09:55:000
179699370,3rtkit-daemon0-21swapper/109:48:211
336114099363,5cyclictest3456153-21apt-get10:15:110
336114099361,11cyclictest3516175-21lsb_release11:39:200
179699360,4rtkit-daemon1795-21rtkit-daemon11:43:350
179699360,3rtkit-daemon0-21swapper/109:37:251
179699360,3rtkit-daemon0-21swapper/109:34:451
34071622350,1sleep10-21swapper/109:05:161
336114099354,7cyclictest3452680-21apt-get10:10:120
179699350,1rtkit-daemon1795-21rtkit-daemon10:23:131
336114499349,10cyclictest3379553-21apt-get07:55:131
336114499348,10cyclictest3545108-21apt-get12:20:101
336114099346,5cyclictest3408685-21diskmemload11:45:580
336114099343,6cyclictest3424007-21apt-get09:30:130
336114099342,7cyclictest3408719-21python309:10:040
336114099341,8cyclictest3408685-21diskmemload12:27:240
179699340,4rtkit-daemon1795-21rtkit-daemon11:51:121
179699340,4rtkit-daemon1795-21rtkit-daemon09:17:191
336114099333,7cyclictest3403019-21apt-get08:55:130
179699330,4rtkit-daemon1795-21rtkit-daemon08:42:101
179699330,3rtkit-daemon1795-21rtkit-daemon10:25:231
179699330,3rtkit-daemon1795-21rtkit-daemon09:29:341
179699330,3rtkit-daemon0-21swapper/012:25:281
336114499329,4cyclictest3449101-21apt-get10:05:111
336114499322,23cyclictest3502575-21apt-get11:20:111
336114499321,9cyclictest26-21ksoftirqd/111:30:221
179699320,4rtkit-daemon1795-21rtkit-daemon10:13:141
179699320,4rtkit-daemon0-21swapper/008:16:081
179699320,3rtkit-daemon0-21swapper/109:29:100
179699320,3rtkit-daemon0-21swapper/108:30:590
179699320,3rtkit-daemon0-21swapper/011:06:141
336114499318,9cyclictest26-21ksoftirqd/108:25:151
336114499317,9cyclictest26-21ksoftirqd/112:01:201
336114499315,7cyclictest3555624-21apt-get12:35:121
336114499311,8cyclictest3552047-21apt-get12:30:111
3361144993111,4cyclictest26-21ksoftirqd/112:15:221
3361144993110,10cyclictest26-21ksoftirqd/110:35:001
336114499310,9cyclictest26-21ksoftirqd/112:05:111
336114499310,8cyclictest3416979-21apt-get09:20:121
336114099312,8cyclictest3408685-21diskmemload11:24:070
336114099312,6cyclictest3406937-21apt-get09:05:140
336114499309,4cyclictest26-21ksoftirqd/110:45:451
3361144993017,7cyclictest3409422-40apt-check09:10:201
3361144993012,4cyclictest26-21ksoftirqd/110:39:401
336114499300,11cyclictest3506154-21apt-get11:25:111
179699300,3rtkit-daemon0-21swapper/007:26:421
179699300,24rtkit-daemon768-21irqbalance07:18:101
336114499291,10cyclictest26-21ksoftirqd/110:55:131
336114499290,9cyclictest3408685-21diskmemload10:40:121
336114499290,7cyclictest0-21swapper/107:40:221
179699290,3rtkit-daemon0-21swapper/110:28:400
179699290,3rtkit-daemon0-21swapper/109:01:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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