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2026-04-29 - 01:29
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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 Apr 28, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24945672265187,28sleep10-21swapper/107:07:151
24947602249207,28sleep00-21swapper/007:09:160
25622612460,4sleep00-21swapper/009:31:370
179699460,3rtkit-daemon0-21swapper/109:55:371
179699450,3rtkit-daemon0-21swapper/110:16:281
179699450,3rtkit-daemon0-21swapper/008:42:370
25712692440,2sleep10-21swapper/109:43:241
179699440,3rtkit-daemon0-21swapper/010:49:140
25600202420,1sleep02560011-21cron09:30:000
26540792400,2sleep00-21swapper/011:30:360
179699380,3rtkit-daemon0-21swapper/110:01:410
26989592340,1sleep00-21swapper/012:30:180
2494937993229,2cyclictest18150irq/39-mmc012:25:051
249493799307,3cyclictest141rcu_preempt09:15:161
2494937993027,2cyclictest66950irq/132-enp2s011:34:041
249493799301,23cyclictest2618252-21apt-get10:45:151
249493399303,10cyclictest141rcu_preempt09:12:470
249493799296,3cyclictest141rcu_preempt08:10:181
2494937992926,2cyclictest66950irq/132-enp2s010:51:101
2494937992926,2cyclictest66950irq/132-enp2s010:25:191
2494937992926,2cyclictest18150irq/39-mmc007:20:061
249493799290,27cyclictest2564860-21sh09:35:131
2494933992918,9cyclictest2633796-21sh11:05:120
249493799288,18cyclictest26-21ksoftirqd/111:15:001
2494937992822,4cyclictest2670685-21rm11:53:551
2494937992815,7cyclictest2690788-21apt-get12:20:131
2494933992825,2cyclictest66950irq/132-enp2s009:10:000
26153522270,4sleep00-21swapper/010:40:200
2494937992724,2cyclictest66950irq/132-enp2s012:35:361
2494937992721,4cyclictest2601799-21sh10:23:211
249493799270,8cyclictest2636384-21ssh11:07:581
2494933992713,7cyclictest66950irq/132-enp2s009:20:120
179699270,5rtkit-daemon2576468-21diskstats09:50:161
2494937992623,2cyclictest66950irq/132-enp2s011:40:581
2494937992623,2cyclictest66950irq/132-enp2s009:48:551
249493799261,8cyclictest2699456-21gunzip12:30:231
2494937992614,7cyclictest66950irq/132-enp2s011:20:141
249493799260,8cyclictest2678875-21apt-config12:05:001
249493399264,3cyclictest141rcu_preempt10:50:150
2494933992611,9cyclictest2702130-21apt-get12:35:140
179699260,3rtkit-daemon1795-21rtkit-daemon08:03:151
179699260,18rtkit-daemon0-21swapper/012:09:530
249493799252,16cyclictest2528639-21apt-get08:30:131
2494937992514,6cyclictest66950irq/132-enp2s012:15:101
249493799250,9cyclictest2679243-21packagekitd12:05:031
249493399252,16cyclictest2599037-21apt-get10:20:120
249493399252,15cyclictest2548807-21apt-get09:15:130
2494933992511,8cyclictest2570248-1kworker/u9:210:15:110
179699250,4rtkit-daemon0-21swapper/012:00:070
179699250,4rtkit-daemon0-21swapper/008:38:500
179699250,3rtkit-daemon0-21swapper/007:24:460
249493799245,3cyclictest251rcuc/111:15:181
249493799243,3cyclictest141rcu_preempt09:20:111
249493799243,2cyclictest141rcu_preempt08:00:011
249493799243,14cyclictest2587664-21apt-get10:05:151
249493799242,15cyclictest2542328-21apt-get09:05:151
249493799241,16cyclictest2503901-21apt-get07:30:151
249493399245,2cyclictest141rcu_preempt11:10:130
249493399243,3cyclictest141rcu_preempt11:35:140
249493399243,14cyclictest2507878-21apt-get07:40:140
249493399242,5cyclictest13-21ksoftirqd/010:09:490
249493399242,15cyclictest2516520-21apt-get08:00:140
2494933992410,9cyclictest2659540-1kworker/u9:011:50:120
2494933992410,9cyclictest2536461-21apt-get08:50:140
249493399240,4cyclictest2630109-21cstates11:00:140
179699240,3rtkit-daemon0-21swapper/012:23:130
179699240,3rtkit-daemon0-21swapper/012:17:580
179699240,3rtkit-daemon0-21swapper/008:32:490
179699240,3rtkit-daemon0-21swapper/008:19:030
179699240,16rtkit-daemon2609637-21ssh10:33:071
179699240,12rtkit-daemon13-21ksoftirqd/011:55:050
249493799234,3cyclictest141rcu_preempt07:30:001
249493799234,17cyclictest2511570-21apt-get07:50:001
249493799232,14cyclictest2560301-21apt-get09:30:151
2494937992317,4cyclictest26-21ksoftirqd/108:55:011
249493799231,4cyclictest2496843-21apt-get07:15:041
249493799231,4cyclictest2496843-21apt-get07:15:031
249493799231,18cyclictest2648944-21apt-get11:25:121
249493399234,11cyclictest2645091-21apt-get11:20:120
249493399233,12cyclictest2514134-21apt-get07:55:140
249493399232,3cyclictest141rcu_preempt07:15:020
249493399232,3cyclictest141rcu_preempt07:15:010
249493399232,14cyclictest2626319-21apt-get10:55:150
249493399232,14cyclictest2512192-21apt-get07:50:150
249493399231,2cyclictest141rcu_preempt11:49:160
249493399231,16cyclictest2540378-21apt-get09:00:140
2494933992310,9cyclictest2641238-21apt-get11:15:140
2494933992310,8cyclictest2566510-1kworker/u9:010:10:130
249493399230,4cyclictest2614311-21cron10:40:010
179699230,3rtkit-daemon0-21swapper/008:26:410
179699230,3rtkit-daemon0-21swapper/008:07:390
249493799225,11cyclictest2495100-21apt-get07:10:161
249493799224,11cyclictest2530592-21apt-get08:35:141
249493799223,2cyclictest141rcu_preempt11:47:311
249493799223,17cyclictest2507280-31updatedb.mlocat07:36:191
249493799223,13cyclictest2544072-21apt-get09:10:031
249493799223,11cyclictest2518869-21apt-get08:05:151
249493799222,4cyclictest141rcu_preempt12:10:231
2494937992216,4cyclictest2633570-21wc11:05:011
2494937992216,4cyclictest26-21ksoftirqd/111:59:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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