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2026-01-09 - 20:20
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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 Fri Jan 09, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2905892993330,1cyclictest0-21swapper/311:50:013
2905892992825,1cyclictest0-21swapper/310:25:153
2905892992613,10cyclictest3201683-21turbostat11:00:003
2905892992421,1cyclictest0-21swapper/310:50:223
2905892992321,1cyclictest0-21swapper/312:20:193
2905892992210,9cyclictest3178479-21chrt10:40:163
2905892992118,1cyclictest0-21swapper/311:55:013
2905892992118,1cyclictest0-21swapper/308:50:013
290589299207,9cyclictest3278122-21turbostat12:00:003
290589299205,10cyclictest30613922sleep309:10:133
2905892992017,1cyclictest0-21swapper/310:30:143
290589299194,9cyclictest29906752sleep308:14:273
290589299192,14cyclictest2911972-21chrt07:11:453
2905892991917,1cyclictest0-21swapper/312:10:183
2905892991916,1cyclictest0-21swapper/311:40:123
2905892991916,1cyclictest0-21swapper/311:05:163
2905892991916,1cyclictest0-21swapper/310:05:013
2905892991916,1cyclictest0-21swapper/308:55:133
2905892991916,1cyclictest0-21swapper/308:40:013
2905892991916,1cyclictest0-21swapper/308:20:003
2905892991916,1cyclictest0-21swapper/307:40:163
290589299191,13cyclictest2971939-21taskset08:00:113
307598180,3rtkit-daemon0-21swapper/208:10:242
290589299187,8cyclictest3099422-21chrt09:39:093
290589299186,9cyclictest3233096-21chrt11:21:203
290589299185,10cyclictest3086445-21taskset09:25:513
290589299182,12cyclictest3328902-21sleep12:40:013
2905892991816,1cyclictest0-21swapper/310:35:123
2905892991815,1cyclictest0-21swapper/310:20:003
290589299181,10cyclictest32459822sleep311:33:523
290589299180,9cyclictest32149392sleep311:10:153
290589299176,8cyclictest2939150-21chrt07:30:203
290589299175,9cyclictest3073505-21chrt09:16:363
290589299174,1cyclictest0-21swapper/307:25:143
2905892991714,1cyclictest0-21swapper/310:50:003
290589299171,13cyclictest3156228-21taskset10:20:213
290589299171,12cyclictest3112067-21taskset09:48:143
290589299171,12cyclictest3105630-21chrt09:42:053
290589299171,12cyclictest3048707-21taskset09:00:093
290589299171,12cyclictest2945482-21taskset07:35:223
31495452161,3sleep10-21swapper/110:15:191
307598160,3rtkit-daemon0-21swapper/112:12:581
30740502161,12sleep03074083-21apt-get09:20:120
30740502161,12sleep03074083-21apt-get09:20:120
290589299166,7cyclictest3118424-21chrt09:53:083
290589299166,7cyclictest29645992sleep307:50:223
290589299165,8cyclictest3252228-21chrt11:37:313
290589299165,8cyclictest3252228-21chrt11:37:303
290589299165,8cyclictest3226699-21chrt11:15:583
290589299165,8cyclictest3207903-21chrt11:03:323
290589299164,9cyclictest3284390-21chrt12:03:483
290589299164,9cyclictest3074048-21chrt09:20:103
290589299164,9cyclictest3074048-21chrt09:20:093
290589299164,9cyclictest3060920-21taskset09:07:443
290589299164,9cyclictest3009952-21taskset08:28:123
290589299164,9cyclictest3003717-21taskset08:24:563
290589299164,9cyclictest2920712-21chrt07:18:393
290589299164,10cyclictest3137597-21taskset10:06:093
2905892991613,1cyclictest0-21swapper/311:25:223
2905892991613,1cyclictest0-21swapper/307:55:223
290589299161,12cyclictest3322284-21taskset12:31:413
290589299161,12cyclictest3040375-21taskset08:50:153
290589299161,12cyclictest2927012-21taskset07:22:473
29653282151,10sleep12965367-21systemd-run07:55:011
290589299159,3cyclictest32974372sleep312:15:103
290589299158,4cyclictest3014106-21chrt08:30:163
290589299154,9cyclictest3029159-21chrt08:42:183
2905892991513,1cyclictest0-21swapper/308:05:153
2905892991512,1cyclictest0-21swapper/312:25:173
2905892991512,1cyclictest0-21swapper/312:05:143
2905892991512,1cyclictest0-21swapper/307:45:153
290589299151,11cyclictest3138533-21taskset10:10:153
290589299151,11cyclictest3119016-21chrt09:55:113
290589299151,11cyclictest3092787-21taskset09:30:273
307598140,9rtkit-daemon3056642-21cut09:05:151
307598140,11rtkit-daemon217-21plymouthd07:34:262
30218142141,5sleep23021891-21ntp_states08:35:182
290589299149,3cyclictest0-21swapper/307:10:013
307598130,8rtkit-daemon3067052-21users09:10:231
33017312121,8sleep23302504-21grep12:15:172
31597342120,9sleep23161791-21grep10:25:182
307598120,1rtkit-daemon0-21swapper/208:29:502
32850672110,8sleep13285553-21cut12:05:141
307598110,7rtkit-daemon3256-21sendmail-mta10:21:021
29926262112,2sleep2171rcu_preempt08:15:172
29709592110,7sleep02971099-21/usr/sbin/munin07:55:230
28997242111,4sleep12899757-21apt-get07:05:121
33055932100,7sleep03307576-21cut12:20:160
32714902100,1sleep10-21swapper/111:51:451
31946172100,8sleep03194782-21/usr/sbin/munin10:50:250
31188302102,5sleep13118863-21apt-get09:55:101
31069572100,7sleep23107822-21grep09:45:132
307598100,6rtkit-daemon746-21gmain11:19:590
307598100,6rtkit-daemon493-21gmain11:41:571
307598100,6rtkit-daemon3256-21sendmail-mta11:33:120
307598100,6rtkit-daemon3180773-21cut10:40:171
307598100,5rtkit-daemon3047311-21kthreadcore08:55:171
307598100,1rtkit-daemon0-21swapper/112:15:041
30324112101,3sleep03032660-21kthreadcore08:45:160
30106712103,4sleep03011195-21sed08:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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