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2026-07-03 - 01:09
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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 Thu Jul 02, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228211023850,29sleep00-21swapper/007:05:270
22827592247206,27sleep10-21swapper/107:07:371
2283121991431,121cyclictest2446991-21apt-config11:45:070
22831279913072,46cyclictest2446994-21apt-config11:45:071
179699950,3rtkit-daemon0-21swapper/012:12:311
228312799660,60cyclictest2461359-21cpuspeed12:05:151
179699660,28rtkit-daemon2434312-40unattended-upgr11:27:220
179699600,4rtkit-daemon1795-21rtkit-daemon09:47:590
2283121995822,27cyclictest2461351-21/usr/sbin/munin12:05:150
179699580,3rtkit-daemon1795-21rtkit-daemon07:22:360
179699550,6rtkit-daemon2482830-21apt-get12:35:120
179699540,4rtkit-daemon1795-21rtkit-daemon12:04:340
179699540,3rtkit-daemon1795-21rtkit-daemon07:16:420
2283121995316,13cyclictest2318356-21apt-get08:35:130
2283121995312,22cyclictest2351213-21apt-get09:35:140
179699530,4rtkit-daemon1795-21rtkit-daemon08:25:370
179699530,4rtkit-daemon1795-21rtkit-daemon07:49:520
179699530,3rtkit-daemon1795-21rtkit-daemon07:10:440
179699530,3rtkit-daemon0-21swapper/012:27:560
179699530,3rtkit-daemon0-21swapper/011:40:250
24034292510,1chrt2403428-21/usr/sbin/munin10:45:211
2283121995112,15cyclictest2354770-21apt-get09:40:110
179699510,4rtkit-daemon1795-21rtkit-daemon08:29:361
179699510,4rtkit-daemon1795-21rtkit-daemon08:04:380
179699510,3rtkit-daemon0-21swapper/007:42:530
179699510,3rtkit-daemon0-21swapper/007:42:520
2283121995013,9cyclictest2331849-21diskmemload12:34:320
2283121995010,14cyclictest2417543-21cat11:05:170
179699500,4rtkit-daemon1795-21rtkit-daemon12:15:520
179699500,4rtkit-daemon1795-21rtkit-daemon10:18:280
179699500,4rtkit-daemon1795-21rtkit-daemon08:05:330
179699500,3rtkit-daemon1795-21rtkit-daemon12:10:160
179699500,3rtkit-daemon1795-21rtkit-daemon11:20:220
179699500,3rtkit-daemon1795-21rtkit-daemon09:33:040
2283121994916,10cyclictest2301875-21/usr/sbin/munin07:55:190
2283121994914,10cyclictest2334862-21ssh09:13:180
2283121994912,12cyclictest2413372-21apt-get11:00:120
179699490,4rtkit-daemon1795-21rtkit-daemon10:21:170
179699490,3rtkit-daemon1795-21rtkit-daemon08:53:400
179699490,3rtkit-daemon1795-21rtkit-daemon08:46:050
24186732480,5sleep10-21swapper/111:06:051
228312199489,10cyclictest2406181-21apt-get10:50:140
2283121994813,14cyclictest2427092-21seq11:19:090
2283121994813,13cyclictest2455777-21seq11:56:060
2283121994811,21cyclictest2336351-21apt-get09:15:110
2283121994811,13cyclictest2451119-21sed11:50:190
2283121994810,20cyclictest2409908-21apt-get10:55:150
2283121994810,14cyclictest2294692-21sed07:35:230
179699480,4rtkit-daemon1795-21rtkit-daemon08:12:360
2283121994713,13cyclictest2317988-21seq08:33:260
2283121994713,12cyclictest2401787-21seq10:43:270
2283121994713,10cyclictest2346420-21ssh09:28:260
2283121994710,14cyclictest2440490-21sed11:35:260
2283121994710,13cyclictest2312814-21perl08:20:160
179699470,4rtkit-daemon1795-21rtkit-daemon09:05:050
179699470,3rtkit-daemon0-21swapper/007:32:260
228312199468,20cyclictest2435788-21apt-get11:30:110
2283121994614,9cyclictest2423496-21ssh11:13:570
2283121994614,10cyclictest850-21runrttasks10:12:530
2283121994613,9cyclictest2371481-21ssh10:02:040
2283121994613,13cyclictest2389975-21taskset10:26:590
2283121994613,12cyclictest2365000-21sh09:53:430
2283121994613,11cyclictest2475166-21seq12:24:350
2283121994612,17cyclictest2402626-21/usr/sbin/munin10:45:250
2283121994612,10cyclictest2326772-21load08:55:190
2283121994610,20cyclictest2395076-21apt-get10:35:110
2283121994610,13cyclictest2392617-21sed10:30:230
179699460,3rtkit-daemon1795-21rtkit-daemon07:50:051
2283121994511,19cyclictest2366473-21grep09:55:200
2283121994511,18cyclictest2373248-21cnf-update-db10:05:020
2283121994511,10cyclictest2320326-21apt-get08:40:110
2283121994510,14cyclictest2299999-21awk07:50:130
228312799448,8cyclictest26-21ksoftirqd/110:25:011
179699440,3rtkit-daemon1795-21rtkit-daemon11:29:051
179699440,3rtkit-daemon0-21swapper/010:01:411
228312199439,20cyclictest2311584-21sed08:15:240
2283121994311,11cyclictest2328194-21cpu09:00:150
2283121994310,10cyclictest2331849-21diskmemload09:23:560
179699420,5rtkit-daemon2290485-21open_files07:25:221
228312199419,10cyclictest2289807-21wc07:25:140
228312799380,8cyclictest26-21ksoftirqd/112:00:011
228312799380,8cyclictest26-21ksoftirqd/107:45:021
228312799376,8cyclictest26-21ksoftirqd/109:45:221
2283127993630,4cyclictest2413622-1kworker/1:1H12:05:011
228312799360,8cyclictest26-21ksoftirqd/111:15:211
228312799353,8cyclictest26-21ksoftirqd/110:10:111
228312799353,4cyclictest26-21ksoftirqd/110:20:011
228312799345,8cyclictest26-21ksoftirqd/108:45:171
228312799340,9cyclictest26-21ksoftirqd/109:59:461
228312799340,9cyclictest26-21ksoftirqd/107:35:011
228312799340,8cyclictest26-21ksoftirqd/110:05:021
228312799340,7cyclictest26-21ksoftirqd/109:20:011
179699340,3rtkit-daemon0-21swapper/009:10:551
228312799332,4cyclictest26-21ksoftirqd/112:30:231
228312799331,8cyclictest26-21ksoftirqd/112:35:241
228312799331,8cyclictest26-21ksoftirqd/110:35:001
228312799330,9cyclictest2409675-21/usr/sbin/munin10:55:011
228312799330,8cyclictest26-21ksoftirqd/112:15:211
228312799323,7cyclictest26-21ksoftirqd/110:40:131
228312799321,8cyclictest26-21ksoftirqd/108:35:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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