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2026-01-08 - 14:37
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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 all highest latencies:
System rackdslot4.osadl.org (updated Thu Jan 08, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123742203170,22sleep10-21swapper/119:05:071
123742203170,22sleep10-21swapper/119:05:071
123692202167,23sleep30-21swapper/319:05:053
123692202167,23sleep30-21swapper/319:05:053
142562200166,22sleep00-21swapper/019:05:390
142562200166,22sleep00-21swapper/019:05:390
143742194162,21sleep20-21swapper/219:07:102
143742194162,21sleep20-21swapper/219:07:102
138491720,1ptp4l391rcuc/319:25:213
31132710,5sleep09-21ksoftirqd/020:55:180
10972670,5sleep10-21swapper/100:05:231
232832630,2sleep10-21swapper/123:45:171
8792610,2sleep20-21swapper/200:05:192
227062610,2sleep10-21swapper/119:25:141
158202550,3sleep115826-21latency21:20:181
14890995224,4cyclictest25-21ksoftirqd/120:35:111
124972520,2sleep0111rcuc/021:15:130
1489299500,20cyclictest26754-21seq23:51:253
1488999509,8cyclictest9-21ksoftirqd/000:35:150
51942490,2sleep10-21swapper/123:10:141
14890994918,4cyclictest25-21ksoftirqd/123:35:001
14890994914,15cyclictest25-21ksoftirqd/120:10:241
1488999496,3cyclictest9-21ksoftirqd/022:35:170
14889994918,9cyclictest9-21ksoftirqd/021:30:200
1488999489,4cyclictest9-21ksoftirqd/020:24:590
1488999489,4cyclictest9-21ksoftirqd/000:00:000
1488999488,8cyclictest9-21ksoftirqd/000:05:220
14890994721,4cyclictest25-21ksoftirqd/120:46:341
1488999479,6cyclictest9-21ksoftirqd/022:16:060
14890994619,4cyclictest25-21ksoftirqd/122:50:131
1488999468,5cyclictest9-21ksoftirqd/000:11:540
1488999468,4cyclictest9-21ksoftirqd/020:32:340
1488999459,4cyclictest9-21ksoftirqd/023:52:010
1488999456,7cyclictest9-21ksoftirqd/021:10:260
1488999455,7cyclictest9-21ksoftirqd/000:30:250
1488999453,9cyclictest9-21ksoftirqd/022:00:290
14889994510,9cyclictest9-21ksoftirqd/023:05:150
14890994414,3cyclictest25-21ksoftirqd/123:35:161
1488999449,7cyclictest9-21ksoftirqd/022:42:120
1488999449,4cyclictest9-21ksoftirqd/020:42:210
1488999449,3cyclictest121rcu_preempt22:20:200
1488999448,7cyclictest9-21ksoftirqd/023:30:190
1488999447,4cyclictest9-21ksoftirqd/020:04:000
1488999441,8cyclictest9-21ksoftirqd/020:50:150
14889994417,10cyclictest9-21ksoftirqd/022:25:210
14889994412,6cyclictest9-21ksoftirqd/019:35:270
1489199437,34cyclictest0-21swapper/222:52:242
1489099433,3cyclictest12224-21cron20:09:591
1488999438,9cyclictest9-21ksoftirqd/019:24:120
14889994313,5cyclictest9-21ksoftirqd/023:45:190
14889994312,4cyclictest9-21ksoftirqd/023:00:190
14889994310,9cyclictest9-21ksoftirqd/023:20:240
138491430,0ptp4l401ktimersoftd/322:41:013
138491430,0ptp4l401ktimersoftd/322:34:523
138491430,0ptp4l401ktimersoftd/300:25:233
138491430,0ptp4l401ktimersoftd/300:19:563
1488999429,7cyclictest9-21ksoftirqd/022:10:170
1488999427,4cyclictest9-21ksoftirqd/023:15:000
1488999425,7cyclictest9-21ksoftirqd/022:05:230
14889994210,3cyclictest9-21ksoftirqd/021:29:590
138491420,34ptp4l0-21swapper/319:10:003
138491420,0ptp4l401ktimersoftd/321:15:173
138491420,0ptp4l401ktimersoftd/300:35:173
1489099418,9cyclictest25-21ksoftirqd/123:15:231
14890994136,3cyclictest25-21ksoftirqd/122:20:001
14890994136,3cyclictest25-21ksoftirqd/100:20:011
1489099412,9cyclictest25-21ksoftirqd/120:30:001
14889994136,3cyclictest9-21ksoftirqd/021:40:000
1489199400,38cyclictest0-21swapper/220:10:052
14890994035,3cyclictest25-21ksoftirqd/100:40:001
1488999406,6cyclictest9-21ksoftirqd/022:00:000
14889994021,5cyclictest9-21ksoftirqd/020:14:200
14889994012,2cyclictest121rcu_preempt20:05:190
1488999400,3cyclictest121rcu_preempt20:35:100
14891993932,5cyclictest33-21ksoftirqd/220:00:012
1489099395,4cyclictest25-21ksoftirqd/121:35:001
1489099394,3cyclictest25-21ksoftirqd/100:27:551
1489099394,3cyclictest121rcu_preempt22:45:011
14890993934,3cyclictest25-21ksoftirqd/121:20:001
14890993933,3cyclictest25-21ksoftirqd/120:30:141
14890993930,2cyclictest25-21ksoftirqd/119:45:141
1489099390,3cyclictest25-21ksoftirqd/123:40:511
1488999398,2cyclictest121rcu_preempt00:15:130
1488999398,10cyclictest9-21ksoftirqd/019:15:190
1488999396,8cyclictest9-21ksoftirqd/023:35:220
1488999396,10cyclictest9-21ksoftirqd/023:27:580
1488999395,2cyclictest121rcu_preempt19:40:210
14889993934,2cyclictest9-21ksoftirqd/023:19:590
14889993923,3cyclictest9-21ksoftirqd/019:30:120
14889993910,9cyclictest9-21ksoftirqd/022:45:130
135191390,2getstats0-21swapper/322:49:483
14891993810,26cyclictest0-21swapper/220:25:332
1489099385,3cyclictest25-21ksoftirqd/120:15:111
14890993833,3cyclictest25-21ksoftirqd/119:20:001
1488999384,3cyclictest121rcu_preempt21:50:210
14889993834,2cyclictest9-21ksoftirqd/020:50:000
1488999380,3cyclictest121rcu_preempt23:00:000
14891993731,4cyclictest33-21ksoftirqd/222:02:172
14891993731,4cyclictest33-21ksoftirqd/219:16:162
14890993733,2cyclictest25-21ksoftirqd/121:05:131
1489099373,2cyclictest121rcu_preempt00:10:251
14890993732,3cyclictest25-21ksoftirqd/122:05:151
14890993732,3cyclictest25-21ksoftirqd/121:45:001
14890993728,2cyclictest25-21ksoftirqd/119:55:211
14890993723,4cyclictest25-21ksoftirqd/120:00:231
14890993723,3cyclictest25-21ksoftirqd/122:25:261
14890993723,3cyclictest25-21ksoftirqd/121:45:171
1488999376,10cyclictest9-21ksoftirqd/000:25:240
1488999374,2cyclictest121rcu_preempt22:30:140
1488999374,2cyclictest121rcu_preempt19:45:240
1488999373,8cyclictest9-21ksoftirqd/019:25:210
1488999373,4cyclictest9-21ksoftirqd/021:25:000
14889993733,2cyclictest9-21ksoftirqd/022:50:180
14889993733,2cyclictest9-21ksoftirqd/021:05:270
14889993731,3cyclictest9-21ksoftirqd/020:00:010
134991370,2getstats0-21swapper/319:20:213
14892993630,4cyclictest41-21ksoftirqd/320:03:303
14891993630,4cyclictest33-21ksoftirqd/221:06:522
14891993630,4cyclictest33-21ksoftirqd/220:58:062
14891993630,4cyclictest33-21ksoftirqd/200:04:232
14891993629,5cyclictest33-21ksoftirqd/221:38:492
14890993633,2cyclictest25-21ksoftirqd/100:00:241
1489099363,2cyclictest121rcu_preempt20:55:171
14890993632,2cyclictest25-21ksoftirqd/120:40:251
14890993631,3cyclictest25-21ksoftirqd/122:50:001
14890993630,4cyclictest25-21ksoftirqd/122:56:551
14890993630,3cyclictest25-21ksoftirqd/121:50:141
1489099360,2cyclictest131rcu_sched23:04:071
1488999365,4cyclictest9-21ksoftirqd/019:10:160
14889993630,3cyclictest9-21ksoftirqd/023:40:230
14889993630,3cyclictest9-21ksoftirqd/021:45:180
14892993530,3cyclictest31784-21turbostat23:00:003
14892993529,4cyclictest41-21ksoftirqd/322:27:043
1489299350,33cyclictest32003-21turbostat00:05:003
14891993529,4cyclictest33-21ksoftirqd/223:07:592
14891993529,4cyclictest33-21ksoftirqd/221:10:422
14891993529,4cyclictest33-21ksoftirqd/220:52:472
14891993529,4cyclictest33-21ksoftirqd/220:50:002
14891993529,3cyclictest33-21ksoftirqd/220:04:182
14891993528,5cyclictest33-21ksoftirqd/222:32:402
1489199352,10cyclictest7309-21chrt22:10:112
14890993530,3cyclictest25-21ksoftirqd/122:20:241
14890993530,3cyclictest25-21ksoftirqd/121:55:131
14890993530,3cyclictest25-21ksoftirqd/121:00:141
14890993530,3cyclictest25-21ksoftirqd/120:55:001
14890993530,3cyclictest25-21ksoftirqd/119:40:221
14890993529,3cyclictest25-21ksoftirqd/119:55:001
14890993529,3cyclictest25-21ksoftirqd/100:25:001
14890993525,3cyclictest25-21ksoftirqd/122:00:131
14890993521,4cyclictest25-21ksoftirqd/121:35:241
14890993515,4cyclictest25-21ksoftirqd/119:34:421
1488999353,2cyclictest121rcu_preempt19:50:130
14889993531,2cyclictest9-21ksoftirqd/020:29:590
14889993529,3cyclictest9-21ksoftirqd/020:20:000
14889993528,4cyclictest9-21ksoftirqd/000:22:020
14892993429,3cyclictest41-21ksoftirqd/321:20:103
14892993428,4cyclictest41-21ksoftirqd/323:29:103
14892993428,4cyclictest41-21ksoftirqd/323:08:523
14892993428,4cyclictest41-21ksoftirqd/323:04:073
14892993428,4cyclictest41-21ksoftirqd/321:30:403
14892993428,4cyclictest41-21ksoftirqd/321:28:553
14892993428,4cyclictest41-21ksoftirqd/320:32:033
14892993428,4cyclictest41-21ksoftirqd/320:26:583
14892993428,4cyclictest41-21ksoftirqd/319:40:443
14892993428,4cyclictest41-21ksoftirqd/319:36:553
14891993429,3cyclictest33-21ksoftirqd/223:28:182
14891993428,4cyclictest33-21ksoftirqd/223:57:452
14891993428,4cyclictest33-21ksoftirqd/222:27:472
14891993428,4cyclictest33-21ksoftirqd/221:02:432
14891993428,4cyclictest33-21ksoftirqd/219:51:222
14891993428,4cyclictest33-21ksoftirqd/219:32:402
14891993428,4cyclictest33-21ksoftirqd/200:39:502
14891993427,5cyclictest33-21ksoftirqd/221:52:432
14891993426,5cyclictest33-21ksoftirqd/221:20:082
14890993429,3cyclictest25-21ksoftirqd/123:55:011
14890993429,3cyclictest25-21ksoftirqd/100:30:191
14890993428,4cyclictest25-21ksoftirqd/122:33:521
14890993428,4cyclictest25-21ksoftirqd/121:10:101
14890993428,3cyclictest25-21ksoftirqd/119:20:171
14890993425,3cyclictest25-21ksoftirqd/122:10:111
14890993425,2cyclictest25-21ksoftirqd/121:25:131
14890993422,3cyclictest25-21ksoftirqd/119:10:141
1488999343,2cyclictest121rcu_preempt21:00:550
14892993328,3cyclictest41-21ksoftirqd/322:35:073
14892993328,3cyclictest41-21ksoftirqd/321:53:543
14892993328,3cyclictest41-21ksoftirqd/320:54:433
14892993327,4cyclictest41-21ksoftirqd/323:42:063
14892993327,4cyclictest41-21ksoftirqd/323:22:403
14892993327,4cyclictest41-21ksoftirqd/322:03:253
1489299331,18cyclictest0-21swapper/319:30:253
14891993328,3cyclictest33-21ksoftirqd/222:40:342
14891993327,4cyclictest33-21ksoftirqd/223:11:042
14891993327,4cyclictest33-21ksoftirqd/220:08:432
14891993327,4cyclictest33-21ksoftirqd/200:22:412
14891993326,5cyclictest33-21ksoftirqd/219:13:352
14891993326,4cyclictest33-21ksoftirqd/221:41:382
14890993329,3cyclictest25-21ksoftirqd/123:20:151
14890993329,2cyclictest25-21ksoftirqd/119:35:141
14890993328,3cyclictest25-21ksoftirqd/123:55:251
14890993327,4cyclictest25-21ksoftirqd/123:26:111
14890993325,3cyclictest25-21ksoftirqd/122:35:131
1489099331,1cyclictest0-21swapper/123:05:241
14892993227,3cyclictest41-21ksoftirqd/320:22:343
14892993226,4cyclictest41-21ksoftirqd/322:50:033
14892993226,4cyclictest41-21ksoftirqd/321:41:133
14892993226,4cyclictest41-21ksoftirqd/321:10:503
14892993226,4cyclictest41-21ksoftirqd/319:53:353
14891993227,3cyclictest33-21ksoftirqd/221:55:382
14891993227,3cyclictest33-21ksoftirqd/221:18:432
14891993226,4cyclictest33-21ksoftirqd/222:22:302
14891993226,4cyclictest33-21ksoftirqd/221:48:162
14891993226,4cyclictest33-21ksoftirqd/220:38:592
14891993226,4cyclictest33-21ksoftirqd/219:39:002
14891993226,4cyclictest33-21ksoftirqd/200:32:232
14891993226,4cyclictest33-21ksoftirqd/200:19:402
1489099321,2cyclictest0-21swapper/120:20:151
14889993228,2cyclictest9-21ksoftirqd/021:40:120
14889993227,3cyclictest9-21ksoftirqd/000:00:140
14892993125,4cyclictest41-21ksoftirqd/323:57:503
14892993125,4cyclictest41-21ksoftirqd/321:07:003
14892993125,4cyclictest41-21ksoftirqd/320:44:273
14892993125,4cyclictest41-21ksoftirqd/320:37:453
14892993125,4cyclictest41-21ksoftirqd/300:21:093
14891993125,4cyclictest33-21ksoftirqd/222:39:472
14891993125,4cyclictest33-21ksoftirqd/221:26:212
14891993125,4cyclictest33-21ksoftirqd/219:22:412
1489299309,18cyclictest12944-21cut00:30:153
14892993025,3cyclictest41-21ksoftirqd/321:45:273
14892993025,3cyclictest41-21ksoftirqd/321:35:113
14892993024,4cyclictest41-21ksoftirqd/320:17:543
14891993025,3cyclictest33-21ksoftirqd/223:36:412
14891993025,3cyclictest33-21ksoftirqd/200:10:112
14891993024,4cyclictest33-21ksoftirqd/223:51:442
14891993024,4cyclictest33-21ksoftirqd/223:15:582
14891993024,4cyclictest33-21ksoftirqd/220:31:292
14891993024,4cyclictest33-21ksoftirqd/220:22:142
14891993024,4cyclictest33-21ksoftirqd/200:29:102
14891993023,4cyclictest33-21ksoftirqd/222:55:032
1385913024,2phc2sys41-21ksoftirqd/323:30:233
14892992924,3cyclictest41-21ksoftirqd/320:55:113
14892992924,3cyclictest41-21ksoftirqd/320:13:223
14892992924,3cyclictest41-21ksoftirqd/319:59:103
14892992923,4cyclictest41-21ksoftirqd/323:10:123
14892992923,4cyclictest41-21ksoftirqd/319:18:173
14892992923,4cyclictest41-21ksoftirqd/300:13:313
14892992912,15cyclictest9691-21cat23:20:003
14892992911,15cyclictest32233-21/usr/sbin/munin21:55:213
14891992924,3cyclictest33-21ksoftirqd/220:41:562
14891992924,3cyclictest33-21ksoftirqd/219:25:472
14891992923,4cyclictest33-21ksoftirqd/223:41:372
14892992823,3cyclictest41-21ksoftirqd/321:04:483
1489299281,22cyclictest4847-21apt-get22:05:133
1489299281,20cyclictest223-21systemd-journal20:45:143
14891992823,3cyclictest33-21ksoftirqd/223:31:362
14891992823,3cyclictest33-21ksoftirqd/223:02:392
14891992822,4cyclictest33-21ksoftirqd/222:15:482
14891992822,4cyclictest33-21ksoftirqd/220:18:102
14892992722,3cyclictest41-21ksoftirqd/322:25:003
14892992721,4cyclictest41-21ksoftirqd/323:46:433
14892992710,14cyclictest303-21expr19:45:123
1489299270,24cyclictest17804-21df_abs23:35:153
14891992722,3cyclictest33-21ksoftirqd/223:21:562
14891992722,3cyclictest33-21ksoftirqd/221:31:472
14892992621,3cyclictest41-21ksoftirqd/322:18:363
1489299260,24cyclictest19157-1kworker/3:2H00:10:003
14891992621,3cyclictest33-21ksoftirqd/222:47:492
1489299254,19cyclictest10956-21irqrtprio20:05:173
1489299251,20cyclictest8884-21ls22:10:233
14891992520,3cyclictest33-21ksoftirqd/223:45:522
14891992519,4cyclictest33-21ksoftirqd/222:05:342
14891992418,4cyclictest33-21ksoftirqd/219:40:022
1489199230,21cyclictest0-21swapper/219:48:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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