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2026-08-10 - 08:57
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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 highest latencies:
System rackdslot3.osadl.org (updated Mon Aug 10, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491224158,22phc2sys0-21swapper/319:09:113
139491224158,22phc2sys0-21swapper/319:09:113
279742205142,21sleep10-21swapper/119:05:441
279742205142,21sleep10-21swapper/119:05:441
261672203170,22sleep20-21swapper/219:05:062
261672203170,22sleep20-21swapper/219:05:052
282042202169,22sleep00-21swapper/019:08:450
282042202169,22sleep00-21swapper/019:08:450
1922821480,4sleep32859699cyclictest23:20:033
1393911150,1ptp4l4733-21apt-get22:50:113
28594997513,60cyclictest0-21swapper/122:00:331
2859499620,1cyclictest0-21swapper/120:35:331
139391520,1ptp4l391rcuc/320:40:053
139391510,1ptp4l401ktimersoftd/323:47:273
2859499499,38cyclictest0-21swapper/123:57:531
28594994816,30cyclictest0-21swapper/120:03:131
203392470,2sleep30-21swapper/300:29:593
28594994616,28cyclictest0-21swapper/121:00:231
139391440,0ptp4l401ktimersoftd/319:28:573
2859599430,40cyclictest3255-21cron23:54:592
139391430,0ptp4l401ktimersoftd/323:40:553
139391430,0ptp4l401ktimersoftd/322:22:493
2859499420,40cyclictest0-21swapper/121:20:331
139391420,0ptp4l401ktimersoftd/322:05:233
139391420,0ptp4l401ktimersoftd/321:30:203
28594994126,13cyclictest25-21ksoftirqd/122:10:001
139391410,1ptp4l401ktimersoftd/321:20:493
139391400,1ptp4l401ktimersoftd/322:30:193
28595993934,3cyclictest33-21ksoftirqd/223:10:002
28595993933,3cyclictest33-21ksoftirqd/222:55:002
28595993833,2cyclictest33-21ksoftirqd/223:25:002
28594993831,4cyclictest25-21ksoftirqd/123:05:291
2859499380,37cyclictest0-21swapper/123:50:331
28593993833,3cyclictest9-21ksoftirqd/019:40:000
139391380,1ptp4l401ktimersoftd/319:13:103
28595993732,3cyclictest33-21ksoftirqd/221:35:002
28595993731,3cyclictest33-21ksoftirqd/221:35:172
28595993731,3cyclictest33-21ksoftirqd/200:30:002
28595993730,4cyclictest33-21ksoftirqd/223:45:012
28595993725,9cyclictest33-21ksoftirqd/219:55:282
28594993731,4cyclictest25-21ksoftirqd/123:16:171
2859499370,3cyclictest121rcu_preempt22:59:591
28593993733,2cyclictest9-21ksoftirqd/019:45:000
28593993732,3cyclictest9-21ksoftirqd/020:20:000
139391370,0ptp4l401ktimersoftd/300:21:563
28596993631,3cyclictest41-21ksoftirqd/323:51:043
28595993631,3cyclictest33-21ksoftirqd/222:30:172
28595993631,3cyclictest33-21ksoftirqd/220:45:002
28595993631,2cyclictest33-21ksoftirqd/219:50:162
28595993630,4cyclictest33-21ksoftirqd/223:56:372
28595993630,3cyclictest33-21ksoftirqd/220:55:222
28595993630,3cyclictest33-21ksoftirqd/219:40:142
28595993625,9cyclictest33-21ksoftirqd/222:55:282
28594993631,3cyclictest25-21ksoftirqd/100:02:491
28594993630,4cyclictest25-21ksoftirqd/121:30:501
28594993630,4cyclictest25-21ksoftirqd/121:00:001
28594993630,4cyclictest25-21ksoftirqd/119:20:371
28594993630,4cyclictest25-21ksoftirqd/100:16:291
2859499360,2cyclictest0-21swapper/119:10:441
28593993630,3cyclictest9-21ksoftirqd/022:20:010
28593993618,10cyclictest9-21ksoftirqd/000:20:510
139391360,1ptp4l401ktimersoftd/321:52:133
134391360,2getstats0-21swapper/320:45:153
28596993529,4cyclictest41-21ksoftirqd/321:40:473
28596993529,4cyclictest41-21ksoftirqd/320:22:123
28596993529,4cyclictest41-21ksoftirqd/320:16:393
28595993531,2cyclictest33-21ksoftirqd/223:40:012
28595993531,2cyclictest33-21ksoftirqd/223:40:012
28595993531,2cyclictest33-21ksoftirqd/219:50:002
28595993530,3cyclictest33-21ksoftirqd/223:20:012
28595993530,3cyclictest33-21ksoftirqd/221:40:132
28595993530,3cyclictest33-21ksoftirqd/221:05:012
28595993529,4cyclictest33-21ksoftirqd/223:32:472
28595993529,4cyclictest33-21ksoftirqd/222:20:422
28595993529,4cyclictest33-21ksoftirqd/220:23:192
28595993529,4cyclictest33-21ksoftirqd/200:18:082
28595993529,3cyclictest33-21ksoftirqd/223:30:002
28594993530,3cyclictest25-21ksoftirqd/120:25:121
28594993529,4cyclictest25-21ksoftirqd/122:52:501
28594993529,4cyclictest25-21ksoftirqd/119:34:241
28594993529,4cyclictest25-21ksoftirqd/100:25:321
28593993531,2cyclictest9-21ksoftirqd/022:10:010
28593993531,2cyclictest9-21ksoftirqd/021:50:010
28593993530,3cyclictest9-21ksoftirqd/023:15:200
28593993529,4cyclictest9-21ksoftirqd/000:08:390
28593993529,4cyclictest9-21ksoftirqd/000:08:390
28593993529,3cyclictest9-21ksoftirqd/020:30:190
28596993429,3cyclictest41-21ksoftirqd/320:39:433
28596993428,4cyclictest41-21ksoftirqd/320:00:003
2859599345,3cyclictest33-21ksoftirqd/221:55:002
28595993430,3cyclictest33-21ksoftirqd/220:55:002
28595993429,3cyclictest33-21ksoftirqd/223:45:252
28595993429,3cyclictest33-21ksoftirqd/222:10:002
28595993429,3cyclictest33-21ksoftirqd/220:50:002
28595993429,3cyclictest33-21ksoftirqd/220:15:112
28595993429,3cyclictest33-21ksoftirqd/220:10:152
28595993429,3cyclictest33-21ksoftirqd/220:10:152
28595993429,2cyclictest33-21ksoftirqd/219:25:002
28595993428,4cyclictest33-21ksoftirqd/221:45:392
28595993428,4cyclictest33-21ksoftirqd/221:09:342
28595993428,4cyclictest33-21ksoftirqd/219:10:462
28595993428,3cyclictest33-21ksoftirqd/219:35:002
2859499343,30cyclictest0-21swapper/121:57:041
28594993429,3cyclictest25-21ksoftirqd/119:26:191
28594993428,4cyclictest25-21ksoftirqd/123:23:311
28594993428,4cyclictest25-21ksoftirqd/119:35:531
28594993428,4cyclictest25-21ksoftirqd/100:09:361
28594993428,4cyclictest25-21ksoftirqd/100:09:361
28594993419,12cyclictest25-21ksoftirqd/100:35:131
28593993429,3cyclictest9-21ksoftirqd/022:10:230
28593993429,3cyclictest9-21ksoftirqd/020:21:050
28593993429,3cyclictest9-21ksoftirqd/020:15:000
28593993429,3cyclictest9-21ksoftirqd/020:15:000
28593993429,3cyclictest9-21ksoftirqd/000:15:210
28593993429,2cyclictest9-21ksoftirqd/023:25:000
28593993429,2cyclictest9-21ksoftirqd/023:00:180
28593993428,4cyclictest9-21ksoftirqd/023:34:050
28593993428,4cyclictest9-21ksoftirqd/023:14:550
28593993428,4cyclictest9-21ksoftirqd/021:39:320
28593993428,4cyclictest9-21ksoftirqd/020:08:490
28596993328,3cyclictest41-21ksoftirqd/321:10:583
28596993328,3cyclictest41-21ksoftirqd/320:02:383
28596993327,4cyclictest41-21ksoftirqd/320:31:473
28596993327,4cyclictest41-21ksoftirqd/319:37:073
28596993326,5cyclictest41-21ksoftirqd/322:46:343
28595993330,2cyclictest33-21ksoftirqd/223:00:142
28595993330,2cyclictest33-21ksoftirqd/219:35:222
28595993329,2cyclictest33-21ksoftirqd/222:00:002
28595993328,3cyclictest33-21ksoftirqd/222:09:572
28595993328,3cyclictest33-21ksoftirqd/221:15:002
28595993328,3cyclictest33-21ksoftirqd/220:36:232
28595993328,3cyclictest33-21ksoftirqd/200:09:542
28595993328,3cyclictest33-21ksoftirqd/200:09:542
28595993327,4cyclictest33-21ksoftirqd/219:17:562
28595993321,2cyclictest33-21ksoftirqd/222:30:002
28594993328,3cyclictest25-21ksoftirqd/123:36:591
28594993328,3cyclictest25-21ksoftirqd/123:36:581
28594993327,4cyclictest25-21ksoftirqd/122:12:581
28594993327,4cyclictest25-21ksoftirqd/120:52:311
28593993328,3cyclictest9-21ksoftirqd/022:05:000
28593993328,3cyclictest9-21ksoftirqd/021:57:400
28593993328,3cyclictest9-21ksoftirqd/020:58:280
28593993328,3cyclictest9-21ksoftirqd/020:02:330
28593993328,3cyclictest9-21ksoftirqd/000:35:130
28593993327,4cyclictest9-21ksoftirqd/023:52:540
28593993327,4cyclictest9-21ksoftirqd/021:42:250
28593993327,4cyclictest9-21ksoftirqd/020:40:430
28593993327,4cyclictest9-21ksoftirqd/019:59:190
28593993327,4cyclictest9-21ksoftirqd/019:32:110
28593993327,3cyclictest9-21ksoftirqd/020:50:120
28593993327,3cyclictest9-21ksoftirqd/000:25:020
28593993317,5cyclictest9-21ksoftirqd/022:55:170
57898320,2rtkit-daemon0-21swapper/122:15:241
28596993227,3cyclictest41-21ksoftirqd/323:05:233
28596993227,3cyclictest41-21ksoftirqd/322:58:173
28596993227,3cyclictest41-21ksoftirqd/321:00:113
28596993227,3cyclictest41-21ksoftirqd/319:50:283
28595993228,2cyclictest33-21ksoftirqd/222:40:002
28595993227,3cyclictest33-21ksoftirqd/221:15:222
28595993227,3cyclictest33-21ksoftirqd/200:35:332
28595993226,3cyclictest33-21ksoftirqd/222:00:212
28595993226,3cyclictest33-21ksoftirqd/200:20:182
28595993220,9cyclictest33-21ksoftirqd/222:40:262
28594993227,3cyclictest25-21ksoftirqd/122:43:261
28594993227,3cyclictest25-21ksoftirqd/121:40:441
28594993227,3cyclictest25-21ksoftirqd/121:26:021
28594993227,3cyclictest25-21ksoftirqd/120:32:361
28594993226,4cyclictest25-21ksoftirqd/122:26:221
28594993226,4cyclictest25-21ksoftirqd/121:18:091
28594993226,4cyclictest25-21ksoftirqd/119:45:311
28594993226,4cyclictest25-21ksoftirqd/100:31:501
28594993226,4cyclictest25-21ksoftirqd/100:20:311
28594993225,4cyclictest25-21ksoftirqd/119:18:581
28594993217,14cyclictest0-21swapper/120:09:131
28594993210,3cyclictest15089-21cut23:10:181
28594993210,3cyclictest1122-21cut21:35:141
28593993229,2cyclictest9-21ksoftirqd/020:40:000
28593993228,3cyclictest9-21ksoftirqd/022:45:190
28593993228,2cyclictest9-21ksoftirqd/022:40:130
28593993228,2cyclictest9-21ksoftirqd/021:52:590
28593993228,2cyclictest9-21ksoftirqd/021:25:010
28593993227,3cyclictest9-21ksoftirqd/019:13:370
28593993227,3cyclictest9-21ksoftirqd/000:10:190
28593993227,2cyclictest9-21ksoftirqd/021:10:000
28593993226,4cyclictest9-21ksoftirqd/023:25:470
28593993226,4cyclictest9-21ksoftirqd/022:38:010
28593993226,4cyclictest9-21ksoftirqd/021:32:260
28593993226,4cyclictest9-21ksoftirqd/020:25:340
28593993226,4cyclictest9-21ksoftirqd/000:34:550
28593993226,3cyclictest9-21ksoftirqd/023:05:180
139391320,0ptp4l401ktimersoftd/323:35:243
139391320,0ptp4l401ktimersoftd/323:35:243
28596993125,4cyclictest41-21ksoftirqd/323:25:333
28596993125,4cyclictest41-21ksoftirqd/322:35:303
28596993125,4cyclictest41-21ksoftirqd/320:26:333
28596993125,4cyclictest41-21ksoftirqd/320:09:573
28596993125,4cyclictest41-21ksoftirqd/300:33:173
28596993125,3cyclictest41-21ksoftirqd/319:45:113
28595993127,3cyclictest33-21ksoftirqd/220:30:132
28595993126,3cyclictest33-21ksoftirqd/220:25:012
28595993126,3cyclictest33-21ksoftirqd/220:09:312
28595993126,3cyclictest33-21ksoftirqd/220:00:272
28595993125,3cyclictest33-21ksoftirqd/200:04:012
28595993124,5cyclictest33-21ksoftirqd/222:16:202
28595993124,3cyclictest33-21ksoftirqd/223:10:122
28595993121,8cyclictest33-21ksoftirqd/221:20:272
28595993119,10cyclictest33-21ksoftirqd/219:25:262
28594993126,3cyclictest25-21ksoftirqd/123:26:421
28594993126,3cyclictest25-21ksoftirqd/123:01:441
28594993126,3cyclictest25-21ksoftirqd/122:21:041
28594993125,4cyclictest25-21ksoftirqd/122:47:241
28594993125,4cyclictest25-21ksoftirqd/121:54:161
28594993125,4cyclictest25-21ksoftirqd/100:10:361
28594993125,3cyclictest25-21ksoftirqd/123:46:371
28594993112,3cyclictest8086-21cat20:40:261
28593993125,3cyclictest9-21ksoftirqd/021:16:270
28593993125,3cyclictest9-21ksoftirqd/021:15:000
2859399311,2cyclictest121rcu_preempt19:25:500
139391310,0ptp4l401ktimersoftd/300:10:293
28596993026,3cyclictest41-21ksoftirqd/323:04:343
28596993025,3cyclictest41-21ksoftirqd/322:29:553
28596993025,3cyclictest41-21ksoftirqd/321:45:133
28596993025,3cyclictest41-21ksoftirqd/320:53:103
28596993024,4cyclictest41-21ksoftirqd/321:19:053
28596993024,4cyclictest41-21ksoftirqd/320:56:023
28596993024,4cyclictest41-21ksoftirqd/300:15:513
28596993024,4cyclictest41-21ksoftirqd/300:07:103
28596993024,4cyclictest41-21ksoftirqd/300:07:093
2859599305,3cyclictest33-21ksoftirqd/221:25:512
28595993026,2cyclictest33-21ksoftirqd/200:30:142
28595993026,2cyclictest33-21ksoftirqd/200:15:012
28595993020,9cyclictest33-21ksoftirqd/222:45:252
28594993025,3cyclictest25-21ksoftirqd/120:13:591
28594993025,3cyclictest25-21ksoftirqd/120:13:591
28594993025,3cyclictest25-21ksoftirqd/119:53:381
28594993010,3cyclictest29316-21if_enp1s023:40:171
28593993027,2cyclictest9-21ksoftirqd/022:50:180
28593993026,2cyclictest9-21ksoftirqd/019:45:180
28593993025,3cyclictest9-21ksoftirqd/023:55:240
28593993025,3cyclictest9-21ksoftirqd/020:50:010
28593993025,3cyclictest9-21ksoftirqd/019:23:000
28593993024,4cyclictest9-21ksoftirqd/023:45:570
28593993024,4cyclictest9-21ksoftirqd/021:26:320
2859399300,28cyclictest8937-21kworker/0:219:15:140
139391300,8ptp4l401ktimersoftd/300:02:163
139391300,0ptp4l401ktimersoftd/323:12:253
139391300,0ptp4l401ktimersoftd/321:35:043
139391300,0ptp4l401ktimersoftd/319:33:343
139391300,0ptp4l401ktimersoftd/319:19:343
28596992924,3cyclictest41-21ksoftirqd/322:03:433
28596992924,3cyclictest41-21ksoftirqd/319:40:123
28596992924,3cyclictest41-21ksoftirqd/300:38:573
28596992923,4cyclictest41-21ksoftirqd/323:19:563
28596992923,4cyclictest41-21ksoftirqd/322:10:323
28596992923,4cyclictest41-21ksoftirqd/321:08:593
2859499299,3cyclictest26302-21cat23:35:001
28594992923,4cyclictest25-21ksoftirqd/121:10:121
28594992923,4cyclictest25-21ksoftirqd/119:55:061
28594992923,3cyclictest25-21ksoftirqd/122:39:311
28593992924,3cyclictest9-21ksoftirqd/019:54:130
28593992923,4cyclictest9-21ksoftirqd/023:44:200
28593992923,4cyclictest9-21ksoftirqd/000:04:290
28596992823,3cyclictest41-21ksoftirqd/321:56:563
28596992823,3cyclictest41-21ksoftirqd/319:23:443
28596992822,4cyclictest41-21ksoftirqd/321:28:353
28596992822,4cyclictest41-21ksoftirqd/320:13:183
28596992822,4cyclictest41-21ksoftirqd/320:13:183
2859499286,4cyclictest20162-21ptp4l-jitter21:05:221
28594992823,3cyclictest25-21ksoftirqd/120:21:031
28593992825,2cyclictest9-21ksoftirqd/022:30:000
28593992723,3cyclictest9-21ksoftirqd/023:35:200
28593992723,3cyclictest9-21ksoftirqd/023:35:200
28593992721,4cyclictest9-21ksoftirqd/021:01:410
28596992621,3cyclictest41-21ksoftirqd/323:55:113
28596992621,3cyclictest41-21ksoftirqd/323:32:053
28593992620,4cyclictest9-21ksoftirqd/022:31:030
139391260,0ptp4l401ktimersoftd/322:44:543
139391260,0ptp4l401ktimersoftd/322:16:273
28594992520,3cyclictest25-21ksoftirqd/120:17:351
28594992520,3cyclictest25-21ksoftirqd/119:44:221
28593992520,3cyclictest9-21ksoftirqd/022:22:520
28594992318,3cyclictest25-21ksoftirqd/121:46:421
28594992115,4cyclictest25-21ksoftirqd/122:32:561
28594991712,3cyclictest10741-21sendmail_mailtr20:45:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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