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2026-03-11 - 19:32
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Wed Mar 11, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3222232340,2sleep0221rcuc/007:30:170
289172992824,1cyclictest0-21swapper/310:25:013
289172992611,12cyclictest375264-21turbostat08:15:013
289172992522,1cyclictest0-21swapper/311:35:143
289172992522,1cyclictest0-21swapper/311:20:003
289172992520,2cyclictest690517-21turbostat12:20:003
28917299210,8cyclictest702981-21chrt12:25:593
28917299210,8cyclictest549229-21chrt10:27:453
6852982201,9sleep1686305-21cat12:15:161
28917299206,7cyclictest6260232sleep311:28:013
289172992017,1cyclictest0-21swapper/307:42:193
28917299201,15cyclictest427065-21taskset08:55:123
28917299201,14cyclictest381885-21taskset08:20:013
28917299200,8cyclictest645348-21chrt11:40:423
28917299200,8cyclictest632616-21sleep11:34:593
28917299200,7cyclictest3878332sleep308:21:393
28917299197,9cyclictest0-21swapper/310:45:183
28917299195,7cyclictest3490562sleep307:50:523
289172991916,1cyclictest0-21swapper/307:25:013
28917299191,14cyclictest529919-21sleep10:15:013
28917299191,14cyclictest490946-21taskset09:44:533
28917299191,14cyclictest471551-21taskset09:28:383
28917299191,14cyclictest471551-21taskset09:28:383
28917299191,13cyclictest296092-21taskset07:15:013
28917299191,13cyclictest296092-21taskset07:15:013
28917299190,8cyclictest696546-21taskset12:20:343
28917299190,14cyclictest452374-21taskset09:14:553
4258442181,7sleep2425921-21ntp_states08:50:192
28917299188,7cyclictest6518052sleep311:46:403
28917299186,1cyclictest0-21swapper/307:37:003
28917299181,7cyclictest664612-21taskset11:56:573
289172991816,1cyclictest0-21swapper/309:30:143
289172991815,1cyclictest0-21swapper/311:50:173
289172991815,1cyclictest0-21swapper/307:45:213
28917299181,13cyclictest716008-21taskset12:39:093
28917299181,13cyclictest465254-21turbostat09:24:593
28917299181,13cyclictest439643-21turbostat09:05:003
28917299181,13cyclictest400818-21taskset08:30:513
28917299181,13cyclictest394282-21taskset08:27:153
28917299181,13cyclictest355697-21taskset07:59:133
28917299180,15cyclictest606648-21chrt11:10:333
28917299180,14cyclictest510045-21chrt09:55:433
28917299180,14cyclictest503401-21chrt09:50:423
28917299180,14cyclictest497286-21chrt09:49:223
28917299180,14cyclictest413608-21taskset08:41:013
28917299180,14cyclictest317123-21chrt07:28:003
28917299176,7cyclictest5618842sleep310:36:073
28917299175,7cyclictest4073342sleep308:37:363
28917299174,2cyclictest0-21swapper/310:40:113
289172991715,1cyclictest0-21swapper/310:55:133
28917299171,4cyclictest0-21swapper/309:15:133
289172991714,1cyclictest0-21swapper/308:50:113
28917299171,3cyclictest0-21swapper/310:50:103
28917299171,13cyclictest362316-21taskset08:03:223
28917299171,12cyclictest683841-21chrt12:11:523
28917299171,12cyclictest670894-21taskset12:00:223
28917299171,12cyclictest531115-21taskset10:15:153
28917299171,12cyclictest295518-21turbostat07:15:003
28917299170,14cyclictest368675-21taskset08:07:313
28917299170,13cyclictest600311-21taskset11:06:403
28917299170,13cyclictest523168-21chrt10:05:533
28917299168,6cyclictest0-21swapper/309:35:373
28917299166,1cyclictest0-21swapper/312:05:143
28917299166,1cyclictest0-21swapper/311:22:473
289172991613,1cyclictest0-21swapper/310:30:113
289172991613,1cyclictest0-21swapper/310:00:163
289172991613,1cyclictest0-21swapper/307:30:133
28917299161,11cyclictest445744-21taskset09:06:463
28917299160,12cyclictest420007-21taskset08:45:383
289172991512,1cyclictest0-21swapper/311:00:123
28917299151,11cyclictest709341-21chrt12:30:443
307598130,8rtkit-daemon325330-21tail07:35:172
6062302122,7sleep0606343-21sed11:10:230
5251462120,9sleep1526713-21cat10:10:171
4018572121,4sleep2402797-21irqstats08:35:162
3636972121,3sleep0217-21plymouthd08:05:160
307598120,8rtkit-daemon410656-21cut08:40:172
4531902113,5sleep0454137-21kthreadcore09:15:170
3567562110,7sleep0357696-21irqstats08:00:160
3098422113,5sleep0309992-21ntpq07:20:190
307598110,7rtkit-daemon316-21systemd-udevd11:15:442
307598110,6rtkit-daemon665162-21cpu12:00:102
307598110,6rtkit-daemon602956-21kthreadcore11:10:172
307598110,6rtkit-daemon3256-21sendmail-mta09:51:482
307598110,4rtkit-daemon714-21snmpd11:00:332
2890392111,6sleep2289068-21munin-run07:10:002
5749662101,6sleep11-21systemd10:50:001
5690612101,6sleep0569174-21gltestperf10:45:140
5686092100,6sleep2568660-21wc10:45:002
5368472100,7sleep2536997-21df_inode10:20:112
4668922100,7sleep2468501-21cut09:25:172
4668922100,7sleep2468501-21cut09:25:172
4348332100,7sleep2435861-21cut09:00:172
307598100,6rtkit-daemon3256-21sendmail-mta09:35:092
307598100,5rtkit-daemon676983-21grep12:05:212
307598100,5rtkit-daemon658492-21munin-run11:55:002
307598100,5rtkit-daemon529936-21munin-run10:15:012
307598100,5rtkit-daemon323264-21users07:30:232
2985002101,6sleep1299426-21tr07:15:161
2985002101,6sleep1299426-21tr07:15:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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