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2026-07-19 - 00:15
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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 Sat Jul 18, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88302203169,23sleep20-21swapper/207:09:432
85152203170,22sleep10-21swapper/107:05:371
85172202168,23sleep30-21swapper/307:05:383
85192201168,22sleep00-21swapper/007:05:390
835521340,5sleep3915699cyclictest09:20:253
915599770,75cyclictest9120-21kworker/2:209:35:332
9153996028,3cyclictest9-21ksoftirqd/012:25:150
9154995922,6cyclictest25-21ksoftirqd/108:37:401
9154995822,8cyclictest25-21ksoftirqd/110:38:561
9154995623,6cyclictest25-21ksoftirqd/109:05:191
91382560,6sleep341-21ksoftirqd/309:25:103
139391560,0ptp4l401ktimersoftd/310:56:533
9153995521,7cyclictest9-21ksoftirqd/012:00:180
296292550,3sleep10-21swapper/110:05:241
296292550,3sleep10-21swapper/110:05:241
9154995451,2cyclictest231rcuc/109:37:251
9154995451,2cyclictest231rcuc/108:46:421
9154995421,9cyclictest25-21ksoftirqd/111:45:251
9154995421,6cyclictest25-21ksoftirqd/109:21:131
9153995420,4cyclictest9-21ksoftirqd/009:30:000
139391540,1ptp4l401ktimersoftd/309:53:193
9154995350,2cyclictest231rcuc/111:32:491
9154995350,2cyclictest231rcuc/109:10:061
9154995349,2cyclictest231rcuc/109:48:361
9154995349,2cyclictest231rcuc/108:56:291
9154995349,2cyclictest231rcuc/107:10:501
915499534,10cyclictest25-21ksoftirqd/107:20:211
915499534,10cyclictest25-21ksoftirqd/107:20:211
9153995322,3cyclictest9-21ksoftirqd/011:50:250
9153995321,7cyclictest9-21ksoftirqd/010:50:170
9153995321,6cyclictest9-21ksoftirqd/011:15:150
9153995320,7cyclictest9-21ksoftirqd/007:50:000
9154995221,8cyclictest25-21ksoftirqd/108:03:511
915499520,5cyclictest241ktimersoftd/112:20:001
9153995224,3cyclictest9-21ksoftirqd/009:04:580
9153995224,3cyclictest9-21ksoftirqd/008:50:280
9153995223,3cyclictest9-21ksoftirqd/007:55:260
9153995222,4cyclictest9-21ksoftirqd/010:10:280
9153995221,7cyclictest9-21ksoftirqd/009:30:160
915499515,7cyclictest25-21ksoftirqd/111:15:221
9154995122,8cyclictest25-21ksoftirqd/110:41:281
9154995121,7cyclictest25-21ksoftirqd/110:19:391
915499510,5cyclictest25-21ksoftirqd/112:10:291
9153995126,3cyclictest9-21ksoftirqd/009:15:170
9153995124,4cyclictest9-21ksoftirqd/011:00:250
9153995124,4cyclictest9-21ksoftirqd/011:00:250
9153995123,8cyclictest9-21ksoftirqd/011:05:170
9153995120,6cyclictest9-21ksoftirqd/007:20:000
915499506,9cyclictest25-21ksoftirqd/111:30:011
915499506,10cyclictest25-21ksoftirqd/112:25:151
915499504,9cyclictest25-21ksoftirqd/109:50:131
915499504,9cyclictest25-21ksoftirqd/107:40:171
9154995022,4cyclictest25-21ksoftirqd/108:33:031
9154995021,3cyclictest25-21ksoftirqd/108:05:391
9154995020,9cyclictest25-21ksoftirqd/109:33:051
9154995019,7cyclictest25-21ksoftirqd/108:54:551
9154995017,9cyclictest25-21ksoftirqd/110:55:201
915499501,6cyclictest241ktimersoftd/109:20:001
915499501,6cyclictest241ktimersoftd/108:40:151
9153995022,3cyclictest9-21ksoftirqd/011:25:190
9153995020,8cyclictest9-21ksoftirqd/007:25:260
9153995020,6cyclictest9-21ksoftirqd/010:05:000
915399501,4cyclictest2701-21cron10:20:000
9154994920,4cyclictest25-21ksoftirqd/111:09:101
915499491,6cyclictest25-21ksoftirqd/107:25:211
9154994913,8cyclictest25-21ksoftirqd/108:10:131
915499490,5cyclictest241ktimersoftd/107:15:131
915399492,4cyclictest9-21ksoftirqd/012:15:000
9153994921,3cyclictest9-21ksoftirqd/012:35:180
9153994921,3cyclictest9-21ksoftirqd/008:40:010
9153994920,4cyclictest9-21ksoftirqd/009:10:180
9153994919,7cyclictest9-21ksoftirqd/009:40:000
9153994919,4cyclictest9-21ksoftirqd/007:35:000
9153994917,7cyclictest9-21ksoftirqd/009:40:160
9153994917,4cyclictest9-21ksoftirqd/011:45:250
915499486,8cyclictest25-21ksoftirqd/107:55:171
915499485,7cyclictest25-21ksoftirqd/108:20:261
915499485,4cyclictest25-21ksoftirqd/107:50:241
915499484,9cyclictest25-21ksoftirqd/110:20:201
915499484,9cyclictest25-21ksoftirqd/107:45:161
915499482,5cyclictest25-21ksoftirqd/112:20:241
915499481,6cyclictest25-21ksoftirqd/109:55:241
915499480,43cyclictest241ktimersoftd/111:40:261
915499480,11cyclictest25-21ksoftirqd/112:00:151
9153994821,4cyclictest9-21ksoftirqd/010:35:300
9153994819,4cyclictest9-21ksoftirqd/008:05:000
9153994818,6cyclictest9-21ksoftirqd/010:45:270
9153994815,7cyclictest9-21ksoftirqd/010:45:000
9153994814,4cyclictest9-21ksoftirqd/011:40:240
9153994813,7cyclictest9-21ksoftirqd/009:50:160
915499475,9cyclictest25-21ksoftirqd/110:10:141
915499475,9cyclictest25-21ksoftirqd/110:00:151
915499475,8cyclictest25-21ksoftirqd/109:40:141
915499475,10cyclictest25-21ksoftirqd/109:25:131
915499473,8cyclictest25-21ksoftirqd/111:55:181
9154994721,7cyclictest25-21ksoftirqd/111:36:441
9154994718,6cyclictest25-21ksoftirqd/107:30:141
915399472,4cyclictest9-21ksoftirqd/010:35:000
9153994719,4cyclictest9-21ksoftirqd/011:20:240
9153994718,6cyclictest9-21ksoftirqd/008:05:170
9153994717,7cyclictest9-21ksoftirqd/008:20:240
915499466,9cyclictest25-21ksoftirqd/110:35:001
915499465,9cyclictest25-21ksoftirqd/111:20:271
915499465,8cyclictest25-21ksoftirqd/111:50:241
915499465,8cyclictest25-21ksoftirqd/111:10:191
915499465,8cyclictest25-21ksoftirqd/110:45:271
915499464,9cyclictest25-21ksoftirqd/111:00:181
915499464,9cyclictest25-21ksoftirqd/111:00:171
915499464,7cyclictest25-21ksoftirqd/110:50:221
915499464,10cyclictest25-21ksoftirqd/108:25:191
915499462,8cyclictest25-21ksoftirqd/110:25:161
915499461,6cyclictest25-21ksoftirqd/109:00:281
915499461,10cyclictest25-21ksoftirqd/107:35:151
915499460,7cyclictest241ktimersoftd/112:05:231
9153994620,3cyclictest9-21ksoftirqd/012:20:270
9153994617,7cyclictest9-21ksoftirqd/010:25:160
9153994617,3cyclictest9-21ksoftirqd/007:10:150
915599451,42cyclictest9524-21kworker/2:111:00:132
915599451,42cyclictest9524-21kworker/2:111:00:132
915499450,6cyclictest241ktimersoftd/112:35:191
915399452,2cyclictest121rcu_preempt08:15:130
9153994519,4cyclictest9-21ksoftirqd/010:05:130
9153994519,4cyclictest9-21ksoftirqd/010:05:130
9153994518,7cyclictest9-21ksoftirqd/008:10:220
9153994516,8cyclictest9-21ksoftirqd/012:30:210
915399451,5cyclictest9-21ksoftirqd/008:25:170
915399450,4cyclictest24218-21apt-get08:50:000
915499445,7cyclictest25-21ksoftirqd/108:15:221
9153994430,4cyclictest9-21ksoftirqd/007:20:220
9153994430,4cyclictest9-21ksoftirqd/007:20:220
915399442,4cyclictest9-21ksoftirqd/007:35:180
9153994418,4cyclictest9-21ksoftirqd/009:55:280
9153994418,3cyclictest9-21ksoftirqd/010:55:230
9153994416,3cyclictest9-21ksoftirqd/012:15:190
915399440,5cyclictest9-21ksoftirqd/011:10:170
915399440,2cyclictest121rcu_preempt09:45:210
139391440,0ptp4l401ktimersoftd/311:49:553
139391440,0ptp4l401ktimersoftd/308:20:243
915499435,9cyclictest25-21ksoftirqd/112:30:231
915399432,4cyclictest9-21ksoftirqd/010:20:130
139391430,0ptp4l401ktimersoftd/311:20:163
915599420,2cyclictest1707-21kworker/2:208:05:332
915399422,2cyclictest121rcu_preempt08:35:010
9153994214,6cyclictest9-21ksoftirqd/009:05:200
139391420,0ptp4l401ktimersoftd/309:13:253
9153994128,4cyclictest9-21ksoftirqd/011:30:270
915399410,5cyclictest121rcu_preempt12:10:000
915399410,2cyclictest121rcu_preempt09:20:190
308432410,1sleep20-21swapper/212:25:182
9153994016,7cyclictest9-21ksoftirqd/007:50:260
9153994013,6cyclictest9-21ksoftirqd/008:40:270
886024031,3sleep30-21swapper/307:10:003
9155993934,3cyclictest4819-21dump-pmu-power12:40:012
915399390,2cyclictest121rcu_preempt11:40:000
915399390,2cyclictest121rcu_preempt07:40:140
139391390,0ptp4l401ktimersoftd/308:10:233
915399383,3cyclictest121rcu_preempt08:55:200
139391380,0ptp4l401ktimersoftd/309:35:173
915599378,27cyclictest0-21swapper/210:05:232
915599378,27cyclictest0-21swapper/210:05:232
9155993731,4cyclictest33-21ksoftirqd/207:35:292
915599372,32cyclictest24351-21cat08:50:002
9156993630,4cyclictest41-21ksoftirqd/311:28:383
9156993630,4cyclictest41-21ksoftirqd/310:09:553
9156993630,4cyclictest41-21ksoftirqd/310:09:553
915599368,27cyclictest0-21swapper/210:40:232
915599363,30cyclictest28085-21cat10:05:002
9155993631,3cyclictest33-21ksoftirqd/207:45:582
915599361,34cyclictest1707-21kworker/2:208:23:532
9153993631,3cyclictest9-21ksoftirqd/012:00:010
9156993529,4cyclictest41-21ksoftirqd/310:19:423
9156993529,4cyclictest41-21ksoftirqd/310:03:053
9156993529,4cyclictest41-21ksoftirqd/307:19:183
9155993529,4cyclictest33-21ksoftirqd/212:13:302
9155993529,4cyclictest33-21ksoftirqd/209:50:452
9155993529,4cyclictest33-21ksoftirqd/209:12:582
9155993529,4cyclictest33-21ksoftirqd/209:07:522
9155993529,4cyclictest33-21ksoftirqd/207:31:322
9155993528,4cyclictest33-21ksoftirqd/207:41:582
9156993429,3cyclictest41-21ksoftirqd/312:01:393
9156993429,3cyclictest41-21ksoftirqd/309:40:123
9156993428,4cyclictest41-21ksoftirqd/312:19:493
9156993428,4cyclictest41-21ksoftirqd/311:36:123
9156993428,4cyclictest41-21ksoftirqd/311:34:273
9156993428,4cyclictest41-21ksoftirqd/311:13:463
9156993428,4cyclictest41-21ksoftirqd/309:08:423
9155993429,3cyclictest33-21ksoftirqd/212:33:312
9155993428,4cyclictest33-21ksoftirqd/207:19:502
915599340,3cyclictest13691-21cron09:35:002
1394913429,2phc2sys41-21ksoftirqd/312:20:243
9156993329,2cyclictest139391ptp4l12:25:173
9156993328,3cyclictest41-21ksoftirqd/308:59:373
9156993328,3cyclictest41-21ksoftirqd/307:35:123
9156993327,4cyclictest41-21ksoftirqd/312:13:153
9156993327,4cyclictest41-21ksoftirqd/309:46:043
9156993327,4cyclictest41-21ksoftirqd/307:51:233
9155993328,3cyclictest33-21ksoftirqd/211:27:352
9155993328,3cyclictest33-21ksoftirqd/211:16:502
9155993328,3cyclictest33-21ksoftirqd/208:41:532
9155993327,4cyclictest33-21ksoftirqd/211:54:172
9155993327,4cyclictest33-21ksoftirqd/211:43:092
9155993327,4cyclictest33-21ksoftirqd/209:29:182
9155993327,4cyclictest33-21ksoftirqd/208:35:512
9155993327,4cyclictest33-21ksoftirqd/208:34:312
9155993327,4cyclictest33-21ksoftirqd/208:12:442
9155993327,4cyclictest33-21ksoftirqd/207:24:232
9155993327,4cyclictest33-21ksoftirqd/207:24:232
9155993314,17cyclictest5854-21uptime11:30:272
9155993312,3cyclictest18865-21grep09:45:152
9155993312,3cyclictest18023-21cut10:50:192
9155993311,3cyclictest25063-21sed11:05:192
9155993311,3cyclictest19441-21date12:00:222
139391330,0ptp4l401ktimersoftd/308:33:183
139391330,0ptp4l401ktimersoftd/307:44:123
9156993226,4cyclictest41-21ksoftirqd/311:51:573
9156993226,4cyclictest41-21ksoftirqd/310:37:353
9155993227,3cyclictest33-21ksoftirqd/211:22:232
9155993227,3cyclictest33-21ksoftirqd/211:11:322
9155993226,4cyclictest33-21ksoftirqd/212:23:132
9155993226,4cyclictest33-21ksoftirqd/210:16:372
9155993226,4cyclictest33-21ksoftirqd/209:44:392
9155993226,4cyclictest33-21ksoftirqd/209:01:262
9155993226,4cyclictest33-21ksoftirqd/208:02:052
139391320,0ptp4l401ktimersoftd/310:50:233
139391320,0ptp4l401ktimersoftd/308:29:443
9156993126,3cyclictest41-21ksoftirqd/309:55:473
9156993125,4cyclictest41-21ksoftirqd/311:03:353
9156993125,4cyclictest41-21ksoftirqd/311:03:343
9156993125,4cyclictest41-21ksoftirqd/310:47:263
915599319,3cyclictest9619-21fschecks_count07:10:172
9155993126,3cyclictest33-21ksoftirqd/210:57:162
9155993126,3cyclictest33-21ksoftirqd/210:29:572
9155993126,3cyclictest33-21ksoftirqd/209:21:042
9155993126,3cyclictest33-21ksoftirqd/208:50:492
9155993125,4cyclictest33-21ksoftirqd/212:15:062
9155993125,4cyclictest33-21ksoftirqd/211:55:092
9155993125,4cyclictest33-21ksoftirqd/208:16:572
9155993124,5cyclictest33-21ksoftirqd/208:26:592
9155993111,3cyclictest6907-21fschecks_count11:35:152
9155993110,3cyclictest10197-21cat10:35:152
139391310,10ptp4l0-21swapper/307:26:503
139391310,0ptp4l401ktimersoftd/312:39:123
139391310,0ptp4l401ktimersoftd/309:17:053
139391310,0ptp4l401ktimersoftd/308:37:303
9156993025,3cyclictest41-21ksoftirqd/311:08:533
9156993025,3cyclictest41-21ksoftirqd/307:48:423
9156993025,3cyclictest41-21ksoftirqd/307:20:103
9156993025,3cyclictest41-21ksoftirqd/307:20:103
915599309,3cyclictest12628-21ptp4l-jitter11:45:252
915599303,25cyclictest32660-21kworker/2:010:30:052
9155993024,4cyclictest33-21ksoftirqd/207:27:592
9155993012,3cyclictest21433-21sh12:05:182
9155993010,3cyclictest4029-21missed_timers10:20:202
139391300,9ptp4l0-21swapper/308:54:403
9156992924,3cyclictest41-21ksoftirqd/310:41:573
9156992924,3cyclictest41-21ksoftirqd/308:46:193
9155992910,2cyclictest30608-21/usr/sbin/munin07:55:122
139391290,11ptp4l0-21swapper/308:03:473
139391290,0ptp4l401ktimersoftd/310:29:503
9156992823,4cyclictest41-21ksoftirqd/310:20:113
9156992823,3cyclictest41-21ksoftirqd/311:59:383
9156992823,3cyclictest41-21ksoftirqd/307:59:593
9156992822,4cyclictest41-21ksoftirqd/309:02:403
9155992823,3cyclictest33-21ksoftirqd/207:52:032
9155992822,4cyclictest33-21ksoftirqd/208:56:302
9156992722,3cyclictest41-21ksoftirqd/309:31:323
9156992721,4cyclictest41-21ksoftirqd/312:31:273
9156992721,4cyclictest41-21ksoftirqd/310:12:483
139391270,0ptp4l401ktimersoftd/310:32:093
9156992621,3cyclictest41-21ksoftirqd/312:05:293
9155992620,4cyclictest33-21ksoftirqd/210:12:392
9155992620,4cyclictest33-21ksoftirqd/209:56:302
915599261,24cyclictest25061-21kworker/2:009:17:012
9156992520,3cyclictest41-21ksoftirqd/308:05:053
9156992519,4cyclictest41-21ksoftirqd/308:40:463
9155992519,4cyclictest33-21ksoftirqd/210:48:252
139391250,0ptp4l401ktimersoftd/307:30:543
9156992419,3cyclictest41-21ksoftirqd/311:45:003
139391240,0ptp4l401ktimersoftd/311:15:293
139391230,0ptp4l401ktimersoftd/308:15:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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