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2026-05-21 - 03:32
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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
Characteristics of the 376 highest latencies:
System rackdslot4.osadl.org (updated Thu May 21, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591221162,47phc2sys0-21swapper/319:06:013
217982204171,22sleep00-21swapper/019:08:280
217682202168,23sleep20-21swapper/219:08:052
215652202169,22sleep10-21swapper/119:05:281
3206321670,6sleep12220899cyclictest21:40:001
66652830,5sleep1223-21systemd-journal23:00:001
22209996632,6cyclictest33-21ksoftirqd/200:15:002
22209996229,10cyclictest33-21ksoftirqd/221:00:142
22209996129,9cyclictest33-21ksoftirqd/220:55:182
22209996129,8cyclictest33-21ksoftirqd/222:20:172
22209996126,4cyclictest33-21ksoftirqd/219:30:242
22209996030,8cyclictest33-21ksoftirqd/222:15:182
22209996027,7cyclictest33-21ksoftirqd/223:35:182
22209996027,6cyclictest33-21ksoftirqd/200:15:172
22209996026,6cyclictest33-21ksoftirqd/222:30:002
22209995930,4cyclictest33-21ksoftirqd/223:55:142
22209995925,10cyclictest33-21ksoftirqd/223:05:012
22209995923,10cyclictest33-21ksoftirqd/222:30:132
22209995922,6cyclictest33-21ksoftirqd/220:25:242
22209995918,11cyclictest33-21ksoftirqd/219:10:182
22209995831,6cyclictest33-21ksoftirqd/222:50:172
22209995829,9cyclictest33-21ksoftirqd/219:25:002
22209995828,5cyclictest33-21ksoftirqd/223:05:192
22209995828,3cyclictest33-21ksoftirqd/221:55:142
22209995827,9cyclictest33-21ksoftirqd/219:25:182
22209995827,9cyclictest33-21ksoftirqd/219:25:182
22209995827,4cyclictest33-21ksoftirqd/223:15:162
22209995825,8cyclictest33-21ksoftirqd/221:30:002
22209995822,6cyclictest33-21ksoftirqd/220:45:262
22209995821,10cyclictest33-21ksoftirqd/221:15:222
22209995728,5cyclictest33-21ksoftirqd/200:00:182
22209995726,9cyclictest33-21ksoftirqd/221:40:182
22209995726,9cyclictest33-21ksoftirqd/220:35:122
22209995726,8cyclictest33-21ksoftirqd/222:10:182
22209995725,5cyclictest33-21ksoftirqd/223:25:132
22209995725,5cyclictest33-21ksoftirqd/200:20:122
22209995721,6cyclictest33-21ksoftirqd/220:20:172
22209995720,10cyclictest33-21ksoftirqd/222:35:242
138491570,8ptp4l401ktimersoftd/322:39:443
22209995628,9cyclictest33-21ksoftirqd/219:15:122
22209995626,9cyclictest33-21ksoftirqd/223:40:242
22209995625,5cyclictest33-21ksoftirqd/221:45:252
22209995623,4cyclictest33-21ksoftirqd/220:10:162
22209995620,6cyclictest33-21ksoftirqd/219:55:222
22209995620,5cyclictest33-21ksoftirqd/220:30:162
22209995525,9cyclictest33-21ksoftirqd/219:40:152
22209995525,5cyclictest33-21ksoftirqd/222:55:232
22209995525,5cyclictest33-21ksoftirqd/222:45:122
22209995521,10cyclictest33-21ksoftirqd/221:05:262
22209995518,5cyclictest33-21ksoftirqd/200:35:162
2220999545,7cyclictest33-21ksoftirqd/222:05:262
22209995426,7cyclictest33-21ksoftirqd/220:05:152
22209995425,7cyclictest33-21ksoftirqd/219:50:142
22209995424,9cyclictest33-21ksoftirqd/223:10:142
22209995418,5cyclictest33-21ksoftirqd/221:30:222
149852540,4sleep114987-21df_abs22:10:131
22209995327,10cyclictest33-21ksoftirqd/200:30:142
22209995319,6cyclictest33-21ksoftirqd/221:20:272
22209995317,5cyclictest33-21ksoftirqd/221:10:272
22209995219,3cyclictest33-21ksoftirqd/223:50:242
22209995216,5cyclictest33-21ksoftirqd/222:05:012
2220999507,3cyclictest33-21ksoftirqd/200:05:142
22209995023,9cyclictest33-21ksoftirqd/220:05:012
22209995023,6cyclictest33-21ksoftirqd/223:20:222
22209995022,5cyclictest33-21ksoftirqd/200:25:122
22209995015,8cyclictest33-21ksoftirqd/219:46:112
2220999494,4cyclictest24173-21idleruntime-cro23:35:002
2220999486,5cyclictest33-21ksoftirqd/220:40:232
2220999480,7cyclictest33-21ksoftirqd/221:50:162
2220999471,8cyclictest33-21ksoftirqd/219:40:002
22209994718,5cyclictest33-21ksoftirqd/222:40:242
2220799473,2cyclictest121rcu_preempt00:20:120
138491470,1ptp4l401ktimersoftd/300:20:333
2220999462,4cyclictest33-21ksoftirqd/221:35:282
2220999461,10cyclictest33-21ksoftirqd/220:15:142
2220999444,6cyclictest33-21ksoftirqd/223:45:122
2220999444,6cyclictest33-21ksoftirqd/223:45:122
138491440,0ptp4l401ktimersoftd/320:36:303
2220999432,5cyclictest33-21ksoftirqd/220:50:252
138491430,0ptp4l401ktimersoftd/323:00:263
138491430,0ptp4l401ktimersoftd/322:50:573
138491430,0ptp4l401ktimersoftd/320:48:293
22207994237,3cyclictest31537-21apt23:50:000
22207994237,3cyclictest31537-21apt23:50:000
22208994136,3cyclictest25-21ksoftirqd/119:59:591
138491410,1ptp4l401ktimersoftd/321:13:153
22210993931,5cyclictest41-21ksoftirqd/322:29:593
22207993932,4cyclictest9-21ksoftirqd/020:50:050
22207993932,4cyclictest31742-21cron20:35:010
22207993831,4cyclictest9-21ksoftirqd/022:47:470
138491380,1ptp4l401ktimersoftd/321:32:423
22210993730,4cyclictest41-21ksoftirqd/321:10:013
22210993729,5cyclictest41-21ksoftirqd/323:50:003
22210993729,5cyclictest41-21ksoftirqd/323:50:003
22208993730,4cyclictest25-21ksoftirqd/122:21:211
22208993730,4cyclictest25-21ksoftirqd/122:20:011
22207993731,4cyclictest9-21ksoftirqd/021:47:050
22210993630,4cyclictest41-21ksoftirqd/300:04:053
22210993629,4cyclictest41-21ksoftirqd/319:12:243
22208993631,3cyclictest25-21ksoftirqd/121:59:591
22208993631,3cyclictest25-21ksoftirqd/100:30:001
22208993630,4cyclictest25-21ksoftirqd/122:44:351
22208993630,4cyclictest25-21ksoftirqd/120:45:331
22208993629,5cyclictest25-21ksoftirqd/119:35:531
22207993629,4cyclictest9-21ksoftirqd/000:00:010
22210993528,4cyclictest41-21ksoftirqd/320:24:593
22210993528,4cyclictest41-21ksoftirqd/319:31:453
22210993528,4cyclictest41-21ksoftirqd/300:11:023
22208993530,3cyclictest25-21ksoftirqd/120:40:321
22208993529,4cyclictest25-21ksoftirqd/123:04:291
22208993529,4cyclictest25-21ksoftirqd/121:52:011
22208993529,4cyclictest25-21ksoftirqd/121:34:421
22208993529,4cyclictest25-21ksoftirqd/119:30:081
22208993528,4cyclictest25-21ksoftirqd/120:26:181
22208993528,3cyclictest25-21ksoftirqd/123:19:591
22207993530,3cyclictest9-21ksoftirqd/022:30:120
22207993529,4cyclictest9-21ksoftirqd/023:24:230
22207993529,4cyclictest9-21ksoftirqd/021:50:540
22207993529,4cyclictest9-21ksoftirqd/000:05:580
22207993528,4cyclictest9-21ksoftirqd/019:22:440
22210993428,4cyclictest41-21ksoftirqd/321:47:253
22210993428,4cyclictest41-21ksoftirqd/320:03:543
22210993427,4cyclictest41-21ksoftirqd/320:31:433
22208993429,3cyclictest25-21ksoftirqd/121:40:111
22208993429,2cyclictest25-21ksoftirqd/122:35:001
22208993428,4cyclictest25-21ksoftirqd/120:56:401
22208993428,4cyclictest25-21ksoftirqd/119:29:271
22208993428,4cyclictest25-21ksoftirqd/119:29:261
22208993428,4cyclictest25-21ksoftirqd/100:01:051
22208993428,3cyclictest25-21ksoftirqd/120:05:001
22208993427,5cyclictest25-21ksoftirqd/122:02:151
22208993427,5cyclictest25-21ksoftirqd/119:44:471
22208993427,4cyclictest25-21ksoftirqd/119:13:181
22207993428,4cyclictest9-21ksoftirqd/020:28:550
22207993428,4cyclictest9-21ksoftirqd/019:33:430
22207993428,4cyclictest9-21ksoftirqd/000:04:330
22207993427,4cyclictest9-21ksoftirqd/023:27:590
22207993427,4cyclictest9-21ksoftirqd/022:25:080
22207993427,4cyclictest9-21ksoftirqd/022:02:510
22207993427,4cyclictest9-21ksoftirqd/021:27:110
22207993427,4cyclictest9-21ksoftirqd/019:40:320
22210993328,3cyclictest41-21ksoftirqd/322:20:123
22210993328,3cyclictest41-21ksoftirqd/319:55:103
22210993328,3cyclictest41-21ksoftirqd/300:06:103
22210993327,4cyclictest41-21ksoftirqd/322:09:073
22210993327,4cyclictest41-21ksoftirqd/321:53:193
22210993327,4cyclictest41-21ksoftirqd/319:48:383
22210993326,4cyclictest41-21ksoftirqd/321:29:033
22208993327,4cyclictest25-21ksoftirqd/123:14:091
22208993327,4cyclictest25-21ksoftirqd/121:04:171
22208993326,4cyclictest25-21ksoftirqd/121:48:071
22208993326,4cyclictest25-21ksoftirqd/119:52:501
22208993326,4cyclictest25-21ksoftirqd/100:37:201
22207993328,3cyclictest9-21ksoftirqd/021:44:090
22207993328,3cyclictest9-21ksoftirqd/021:35:510
22207993328,3cyclictest9-21ksoftirqd/019:13:400
22207993328,3cyclictest9-21ksoftirqd/000:16:340
22207993327,4cyclictest9-21ksoftirqd/023:37:500
22207993327,4cyclictest9-21ksoftirqd/022:23:480
22207993327,4cyclictest9-21ksoftirqd/021:17:400
22207993327,3cyclictest9-21ksoftirqd/021:21:010
22207993326,4cyclictest9-21ksoftirqd/020:10:090
22207993326,4cyclictest9-21ksoftirqd/019:38:400
138491330,0ptp4l401ktimersoftd/321:55:353
22210993227,3cyclictest41-21ksoftirqd/323:50:323
22210993226,4cyclictest41-21ksoftirqd/323:41:183
22210993226,4cyclictest41-21ksoftirqd/323:05:393
22210993226,4cyclictest41-21ksoftirqd/321:22:113
22210993226,4cyclictest41-21ksoftirqd/321:16:363
22210993226,4cyclictest41-21ksoftirqd/320:11:213
22210993226,4cyclictest41-21ksoftirqd/319:18:383
22210993226,3cyclictest41-21ksoftirqd/319:27:133
22210993226,3cyclictest41-21ksoftirqd/319:27:133
22208993227,3cyclictest25-21ksoftirqd/123:38:381
22208993227,3cyclictest25-21ksoftirqd/121:20:011
22208993226,4cyclictest25-21ksoftirqd/122:37:011
22208993226,3cyclictest25-21ksoftirqd/121:05:191
22208993225,5cyclictest25-21ksoftirqd/100:24:241
22208993225,4cyclictest25-21ksoftirqd/119:16:591
22207993227,3cyclictest9-21ksoftirqd/023:03:390
22207993227,3cyclictest9-21ksoftirqd/021:55:090
22207993226,4cyclictest9-21ksoftirqd/023:18:570
22207993226,4cyclictest9-21ksoftirqd/022:06:040
22207993226,4cyclictest9-21ksoftirqd/020:57:440
22207993226,4cyclictest9-21ksoftirqd/020:07:090
22207993226,3cyclictest9-21ksoftirqd/022:13:020
22207993226,3cyclictest9-21ksoftirqd/020:40:560
22207993225,4cyclictest9-21ksoftirqd/021:04:140
138491320,0ptp4l401ktimersoftd/320:20:003
22210993126,3cyclictest41-21ksoftirqd/319:21:093
22210993125,4cyclictest41-21ksoftirqd/320:57:093
22210993125,4cyclictest41-21ksoftirqd/320:28:333
22210993125,4cyclictest41-21ksoftirqd/320:09:123
22210993125,4cyclictest41-21ksoftirqd/300:32:173
22210993125,4cyclictest41-21ksoftirqd/300:19:413
22210993125,3cyclictest41-21ksoftirqd/300:35:063
22210993123,5cyclictest41-21ksoftirqd/322:30:013
22208993126,3cyclictest25-21ksoftirqd/121:20:391
22208993125,4cyclictest25-21ksoftirqd/100:33:561
22208993125,4cyclictest25-21ksoftirqd/100:19:471
22208993125,4cyclictest25-21ksoftirqd/100:14:001
22208993125,4cyclictest25-21ksoftirqd/100:08:491
22208993125,3cyclictest25-21ksoftirqd/120:35:191
22208993124,4cyclictest25-21ksoftirqd/122:49:331
22207993126,3cyclictest9-21ksoftirqd/022:50:040
22207993126,3cyclictest9-21ksoftirqd/022:16:180
22207993126,3cyclictest9-21ksoftirqd/019:28:130
22207993126,3cyclictest9-21ksoftirqd/019:28:130
22207993126,3cyclictest9-21ksoftirqd/019:16:490
22207993125,4cyclictest9-21ksoftirqd/021:12:270
22207993125,4cyclictest9-21ksoftirqd/020:21:370
22207993125,4cyclictest9-21ksoftirqd/019:59:550
138491310,0ptp4l401ktimersoftd/300:27:463
22210993025,3cyclictest41-21ksoftirqd/323:38:203
22210993025,3cyclictest41-21ksoftirqd/323:25:103
22210993025,3cyclictest41-21ksoftirqd/323:15:123
22210993025,3cyclictest41-21ksoftirqd/322:02:123
22210993025,3cyclictest41-21ksoftirqd/320:41:593
22210993025,3cyclictest41-21ksoftirqd/319:51:193
22210993025,3cyclictest41-21ksoftirqd/319:37:153
22210993024,3cyclictest41-21ksoftirqd/322:46:283
22208993025,3cyclictest25-21ksoftirqd/120:20:531
22208993024,4cyclictest25-21ksoftirqd/123:56:241
22208993024,4cyclictest25-21ksoftirqd/123:46:211
22208993024,4cyclictest25-21ksoftirqd/123:46:211
22208993024,4cyclictest25-21ksoftirqd/123:40:031
22208993024,4cyclictest25-21ksoftirqd/123:34:181
22208993024,4cyclictest25-21ksoftirqd/120:53:381
22208993024,4cyclictest25-21ksoftirqd/120:09:561
22208993024,3cyclictest25-21ksoftirqd/119:46:521
22207993024,4cyclictest9-21ksoftirqd/023:14:080
22207993024,4cyclictest9-21ksoftirqd/022:55:530
22207993023,4cyclictest9-21ksoftirqd/023:51:190
22207993023,4cyclictest9-21ksoftirqd/000:12:480
138491300,0ptp4l401ktimersoftd/322:43:173
138491300,0ptp4l401ktimersoftd/322:19:483
22210992925,2cyclictest12397-21kthreadd21:00:143
22208992923,4cyclictest25-21ksoftirqd/121:12:371
22208992923,3cyclictest25-21ksoftirqd/120:18:561
22207992924,3cyclictest9-21ksoftirqd/023:30:080
22207992922,4cyclictest9-21ksoftirqd/000:39:080
22207992922,4cyclictest9-21ksoftirqd/000:28:490
138491290,0ptp4l401ktimersoftd/323:20:233
22210992822,3cyclictest41-21ksoftirqd/323:55:103
22208992823,3cyclictest25-21ksoftirqd/120:11:551
22208992822,4cyclictest25-21ksoftirqd/122:28:181
22208992822,3cyclictest25-21ksoftirqd/123:25:181
22208992821,4cyclictest25-21ksoftirqd/122:54:471
22208992821,4cyclictest25-21ksoftirqd/122:06:041
22208992821,4cyclictest25-21ksoftirqd/121:25:331
22207992824,3cyclictest9-21ksoftirqd/021:05:190
22207992823,3cyclictest9-21ksoftirqd/022:42:090
22207992823,3cyclictest9-21ksoftirqd/020:47:040
22207992823,3cyclictest22148-21taskset20:15:110
22207992822,3cyclictest9-21ksoftirqd/019:51:060
138491280,0ptp4l401ktimersoftd/321:38:163
22210992722,3cyclictest41-21ksoftirqd/319:44:233
22210992721,4cyclictest41-21ksoftirqd/323:33:513
22208992720,4cyclictest25-21ksoftirqd/123:06:431
22208992719,4cyclictest25-21ksoftirqd/123:24:591
22207992721,4cyclictest9-21ksoftirqd/020:01:030
22207992716,8cyclictest9-21ksoftirqd/023:10:010
22208992621,3cyclictest25-21ksoftirqd/123:50:181
22207992620,4cyclictest9-21ksoftirqd/021:31:420
138491260,1ptp4l401ktimersoftd/322:55:113
138491260,0ptp4l401ktimersoftd/320:51:233
22208992520,3cyclictest25-21ksoftirqd/120:30:151
22207992520,3cyclictest9-21ksoftirqd/019:49:070
138491250,0ptp4l401ktimersoftd/321:40:163
22208992420,2cyclictest25-21ksoftirqd/119:20:131
22207992419,3cyclictest9-21ksoftirqd/022:39:420
22207992418,4cyclictest9-21ksoftirqd/020:35:330
138491240,0ptp4l401ktimersoftd/323:10:253
138491240,0ptp4l401ktimersoftd/322:10:203
22207992318,3cyclictest9-21ksoftirqd/023:40:100
22207992318,3cyclictest9-21ksoftirqd/000:31:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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