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2026-05-28 - 10:28
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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 rackdslot4.osadl.org (updated Thu May 28, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591226162,22phc2sys0-21swapper/319:09:563
194512215151,22sleep00-21swapper/019:06:540
196312202169,22sleep10-21swapper/119:09:161
196322201168,21sleep20-21swapper/219:09:172
1065921680,5sleep21998799cyclictest19:55:172
1357921540,2sleep21998799cyclictest00:20:182
1969428162,10sleep20-21swapper/219:10:012
217902720,1sleep30-21swapper/321:20:233
19987997119,10cyclictest33-21ksoftirqd/222:25:232
19985996725,6cyclictest9-21ksoftirqd/000:35:220
19987996422,5cyclictest33-21ksoftirqd/220:30:192
19986996333,4cyclictest25-21ksoftirqd/119:50:131
19986996222,4cyclictest25-21ksoftirqd/100:00:171
19985996229,6cyclictest9-21ksoftirqd/023:00:180
19985996219,8cyclictest9-21ksoftirqd/019:10:230
19987996119,10cyclictest33-21ksoftirqd/221:45:262
19986996121,9cyclictest25-21ksoftirqd/100:11:131
19985996129,7cyclictest9-21ksoftirqd/021:50:150
19986996030,3cyclictest25-21ksoftirqd/123:10:001
19986996029,4cyclictest25-21ksoftirqd/120:50:001
19986996029,3cyclictest25-21ksoftirqd/123:25:121
19987995922,5cyclictest33-21ksoftirqd/223:55:132
19987995919,12cyclictest33-21ksoftirqd/223:30:182
19986995930,4cyclictest25-21ksoftirqd/121:35:001
19986995926,4cyclictest25-21ksoftirqd/120:10:131
19985995930,3cyclictest9-21ksoftirqd/021:35:260
19985995929,3cyclictest9-21ksoftirqd/000:09:080
19985995928,7cyclictest9-21ksoftirqd/020:40:190
19985995927,4cyclictest9-21ksoftirqd/019:50:120
19985995918,4cyclictest9-21ksoftirqd/000:20:260
313282580,4sleep231324-21switchtime20:35:252
19987995824,5cyclictest33-21ksoftirqd/221:30:192
19986995829,3cyclictest25-21ksoftirqd/120:35:141
19986995824,10cyclictest25-21ksoftirqd/123:10:121
19985995830,7cyclictest9-21ksoftirqd/021:05:170
19985995830,4cyclictest9-21ksoftirqd/000:10:150
19985995827,4cyclictest9-21ksoftirqd/021:55:120
19985995824,4cyclictest9-21ksoftirqd/000:00:130
19985995821,6cyclictest9-21ksoftirqd/020:35:010
19987995728,5cyclictest33-21ksoftirqd/219:30:182
19987995719,8cyclictest33-21ksoftirqd/219:35:192
19986995728,4cyclictest25-21ksoftirqd/123:35:211
19986995728,3cyclictest25-21ksoftirqd/120:20:111
19986995725,6cyclictest25-21ksoftirqd/121:15:131
19986995724,6cyclictest25-21ksoftirqd/123:40:221
19986995724,3cyclictest25-21ksoftirqd/121:20:161
19986995721,4cyclictest25-21ksoftirqd/122:00:141
19985995730,4cyclictest9-21ksoftirqd/023:20:130
19985995729,3cyclictest9-21ksoftirqd/019:45:200
19985995728,4cyclictest9-21ksoftirqd/021:45:140
19985995725,3cyclictest9-21ksoftirqd/020:10:240
19985995724,3cyclictest9-21ksoftirqd/020:25:150
19985995715,8cyclictest9-21ksoftirqd/023:40:130
51892560,2sleep30-21swapper/323:00:113
19986995630,4cyclictest25-21ksoftirqd/100:35:271
19986995626,4cyclictest25-21ksoftirqd/121:05:161
19986995625,3cyclictest25-21ksoftirqd/120:10:001
19986995623,3cyclictest25-21ksoftirqd/122:40:191
19986995621,3cyclictest25-21ksoftirqd/121:50:241
19985995629,3cyclictest9-21ksoftirqd/022:00:120
19985995628,4cyclictest9-21ksoftirqd/019:35:140
19985995627,8cyclictest9-21ksoftirqd/023:15:130
19985995627,8cyclictest9-21ksoftirqd/023:15:130
19985995627,3cyclictest9-21ksoftirqd/022:20:250
19986995527,7cyclictest25-21ksoftirqd/119:55:501
19986995521,6cyclictest25-21ksoftirqd/121:40:241
19986995521,6cyclictest25-21ksoftirqd/121:40:241
19985995527,4cyclictest9-21ksoftirqd/021:10:280
19985995527,4cyclictest9-21ksoftirqd/021:10:280
19985995527,4cyclictest9-21ksoftirqd/019:55:260
19985995523,6cyclictest9-21ksoftirqd/000:15:130
81412540,2sleep30-21swapper/320:55:163
232762540,3sleep31998899cyclictest22:30:153
19985995427,7cyclictest9-21ksoftirqd/023:55:240
19985995426,4cyclictest9-21ksoftirqd/022:35:150
124112540,2sleep00-21swapper/020:00:130
19987995321,16cyclictest33-21ksoftirqd/222:50:192
19986995327,4cyclictest25-21ksoftirqd/122:05:121
19986995325,7cyclictest25-21ksoftirqd/121:25:121
19985995327,4cyclictest9-21ksoftirqd/023:11:520
19985995325,10cyclictest9-21ksoftirqd/022:55:510
19985995317,7cyclictest9-21ksoftirqd/022:45:120
138491530,1ptp4l401ktimersoftd/321:41:123
138491530,1ptp4l401ktimersoftd/321:41:113
19987995220,5cyclictest33-21ksoftirqd/220:20:002
19987995216,5cyclictest33-21ksoftirqd/223:45:192
19987995216,5cyclictest33-21ksoftirqd/223:45:182
1998699526,8cyclictest12344-21apt-get20:00:121
19986995222,4cyclictest25-21ksoftirqd/123:00:241
19985995225,3cyclictest9-21ksoftirqd/022:31:080
19985995225,3cyclictest9-21ksoftirqd/022:15:260
19985995224,3cyclictest9-21ksoftirqd/019:15:260
19985995223,3cyclictest9-21ksoftirqd/020:05:240
1998599515,8cyclictest9-21ksoftirqd/019:40:180
19985995128,3cyclictest9-21ksoftirqd/023:30:140
19985995123,6cyclictest9-21ksoftirqd/021:02:420
19987995022,5cyclictest33-21ksoftirqd/221:00:002
19987995016,4cyclictest33-21ksoftirqd/221:55:262
19987995016,19cyclictest33-21ksoftirqd/220:10:192
19987995013,3cyclictest33-21ksoftirqd/220:50:192
1998599505,7cyclictest9-21ksoftirqd/021:30:270
1998599504,8cyclictest9-21ksoftirqd/022:05:180
19985995025,6cyclictest9-21ksoftirqd/020:39:550
1998599501,8cyclictest9-21ksoftirqd/023:45:160
1998599501,8cyclictest9-21ksoftirqd/023:45:150
19985995018,10cyclictest9-21ksoftirqd/000:29:210
19987994929,4cyclictest33-21ksoftirqd/220:00:122
19987994920,8cyclictest33-21ksoftirqd/221:35:212
19987994918,5cyclictest33-21ksoftirqd/222:10:182
19987994911,10cyclictest33-21ksoftirqd/219:27:102
19986994920,4cyclictest25-21ksoftirqd/119:47:251
19985994930,9cyclictest9-21ksoftirqd/019:30:220
19987994816,4cyclictest33-21ksoftirqd/223:10:132
1998699485,8cyclictest15363-21apt-get21:10:121
1998699485,8cyclictest15363-21apt-get21:10:111
19986994823,3cyclictest25-21ksoftirqd/122:10:111
1998699481,6cyclictest25-21ksoftirqd/100:30:261
19985994837,3cyclictest9-21ksoftirqd/021:15:250
19985994832,7cyclictest9-21ksoftirqd/020:15:140
1998599481,8cyclictest9-21ksoftirqd/023:50:210
19987994733,11cyclictest33-21ksoftirqd/221:50:222
19987994731,5cyclictest33-21ksoftirqd/220:25:132
19987994720,8cyclictest33-21ksoftirqd/221:45:012
19987994720,8cyclictest33-21ksoftirqd/221:45:012
19987994714,5cyclictest33-21ksoftirqd/223:25:182
1998599476,2cyclictest121rcu_preempt21:40:220
1998599476,2cyclictest121rcu_preempt21:40:220
1998599473,7cyclictest9-21ksoftirqd/023:25:230
19985994728,5cyclictest9-21ksoftirqd/022:25:150
1998599471,8cyclictest9-21ksoftirqd/020:45:120
132572470,2sleep30-21swapper/300:20:153
19987994635,9cyclictest33-21ksoftirqd/223:00:262
19987994635,9cyclictest33-21ksoftirqd/221:20:162
19987994612,8cyclictest33-21ksoftirqd/200:30:002
19987994612,4cyclictest33-21ksoftirqd/200:00:222
1998699468,7cyclictest25-21ksoftirqd/122:30:091
19986994631,3cyclictest25-21ksoftirqd/122:55:181
1998699462,6cyclictest25-21ksoftirqd/123:30:251
19986994626,3cyclictest25-21ksoftirqd/122:25:251
19986994620,3cyclictest25-21ksoftirqd/120:55:231
1998599465,7cyclictest9-21ksoftirqd/023:05:210
19985994632,4cyclictest9-21ksoftirqd/000:35:010
19985994628,6cyclictest9-21ksoftirqd/019:20:210
226392450,28sleep233-21ksoftirqd/219:15:142
1998799459,4cyclictest33-21ksoftirqd/222:05:142
1998799458,5cyclictest33-21ksoftirqd/219:54:542
1998799456,5cyclictest33-21ksoftirqd/221:11:162
1998799456,5cyclictest33-21ksoftirqd/221:11:162
19987994515,4cyclictest33-21ksoftirqd/223:50:252
19987994514,7cyclictest33-21ksoftirqd/221:05:002
1998699452,5cyclictest25-21ksoftirqd/120:40:201
1998699452,2cyclictest121rcu_preempt19:35:071
19986994519,6cyclictest25-21ksoftirqd/119:40:211
19986994517,7cyclictest25-21ksoftirqd/119:22:501
1998699451,5cyclictest0-21swapper/120:25:101
1998599455,8cyclictest9-21ksoftirqd/021:25:190
19985994536,2cyclictest9-21ksoftirqd/020:55:260
19985994528,6cyclictest9-21ksoftirqd/022:10:220
19985994526,9cyclictest9-21ksoftirqd/020:20:190
1998799446,6cyclictest33-21ksoftirqd/222:45:472
1998799445,4cyclictest33-21ksoftirqd/219:23:052
19987994439,3cyclictest33-21ksoftirqd/200:20:002
19987994428,4cyclictest33-21ksoftirqd/220:05:172
19987994427,5cyclictest33-21ksoftirqd/222:40:122
19987994414,4cyclictest33-21ksoftirqd/222:35:172
1998699446,3cyclictest25-21ksoftirqd/123:20:061
1998699441,8cyclictest25-21ksoftirqd/120:35:011
1998699441,6cyclictest25-21ksoftirqd/122:35:181
1998599444,8cyclictest9-21ksoftirqd/023:35:200
1998599444,3cyclictest121rcu_preempt21:20:160
1998599444,3cyclictest121rcu_preempt19:30:000
19988994333,5cyclictest41-21ksoftirqd/300:00:123
1998799437,4cyclictest33-21ksoftirqd/223:23:152
1998799436,5cyclictest33-21ksoftirqd/223:07:212
1998799434,5cyclictest33-21ksoftirqd/222:58:562
1998799434,4cyclictest33-21ksoftirqd/200:36:442
19987994315,4cyclictest33-21ksoftirqd/221:15:192
19987994314,4cyclictest33-21ksoftirqd/223:40:002
19986994330,4cyclictest25-21ksoftirqd/100:05:211
19986994330,3cyclictest25-21ksoftirqd/123:45:231
19986994330,3cyclictest25-21ksoftirqd/123:45:221
19986994329,4cyclictest25-21ksoftirqd/121:45:271
19986994317,8cyclictest25-21ksoftirqd/121:35:081
1998699431,6cyclictest25-21ksoftirqd/100:20:131
19986994316,3cyclictest25-21ksoftirqd/122:47:461
1998599434,3cyclictest9-21ksoftirqd/020:50:160
1998599432,3cyclictest9-21ksoftirqd/022:51:190
19988994237,3cyclictest41-21ksoftirqd/320:30:013
1998799425,5cyclictest33-21ksoftirqd/222:22:122
1998799425,4cyclictest33-21ksoftirqd/220:23:392
19987994228,12cyclictest33-21ksoftirqd/223:15:132
19987994228,12cyclictest33-21ksoftirqd/223:15:132
19987994224,5cyclictest33-21ksoftirqd/221:05:232
19987994221,10cyclictest33-21ksoftirqd/220:44:592
19987994213,7cyclictest33-21ksoftirqd/200:35:012
19987994211,10cyclictest33-21ksoftirqd/220:45:092
19986994226,7cyclictest25-21ksoftirqd/100:20:011
19986994215,3cyclictest25-21ksoftirqd/121:04:361
1998699421,2cyclictest121rcu_preempt19:25:191
1998699420,7cyclictest25-21ksoftirqd/120:50:181
19985994229,4cyclictest9-21ksoftirqd/022:40:130
138491420,0ptp4l401ktimersoftd/319:56:393
1998799415,4cyclictest33-21ksoftirqd/219:46:402
1998799414,5cyclictest33-21ksoftirqd/222:17:392
19987994129,10cyclictest33-21ksoftirqd/219:40:252
1998699416,3cyclictest25-21ksoftirqd/123:55:271
1998699414,10cyclictest25-21ksoftirqd/119:10:251
19986994127,3cyclictest25-21ksoftirqd/122:15:241
138491410,0ptp4l401ktimersoftd/322:15:033
19988994035,2cyclictest41-21ksoftirqd/319:20:003
1998799403,4cyclictest33-21ksoftirqd/222:31:282
19986994023,5cyclictest25-21ksoftirqd/122:20:191
1998699400,6cyclictest25-21ksoftirqd/123:15:201
1998699400,6cyclictest25-21ksoftirqd/123:15:201
138491400,1ptp4l401ktimersoftd/322:47:383
138491400,1ptp4l401ktimersoftd/321:58:443
1998799394,5cyclictest33-21ksoftirqd/222:02:352
1998799394,5cyclictest33-21ksoftirqd/221:28:002
19987993933,3cyclictest33-21ksoftirqd/223:40:202
19986993935,2cyclictest241ktimersoftd/119:30:131
1998699393,3cyclictest121rcu_preempt21:55:221
1998699391,9cyclictest25-21ksoftirqd/122:50:171
19986993912,10cyclictest25-21ksoftirqd/120:20:001
19988993833,3cyclictest41-21ksoftirqd/323:00:003
1998799383,4cyclictest33-21ksoftirqd/200:13:042
19987993818,5cyclictest33-21ksoftirqd/200:05:142
19986993833,2cyclictest241ktimersoftd/123:50:131
19986993827,4cyclictest25-21ksoftirqd/119:15:221
1998699380,6cyclictest25-21ksoftirqd/100:25:121
19988993733,2cyclictest41-21ksoftirqd/320:24:593
19988993732,3cyclictest41-21ksoftirqd/320:40:003
19988993731,4cyclictest41-21ksoftirqd/320:43:163
19988993731,4cyclictest41-21ksoftirqd/300:19:113
19988993632,2cyclictest41-21ksoftirqd/323:55:013
19988993631,3cyclictest41-21ksoftirqd/322:35:183
19988993631,3cyclictest41-21ksoftirqd/300:00:003
19988993630,4cyclictest41-21ksoftirqd/321:35:553
19988993630,4cyclictest41-21ksoftirqd/320:09:303
1998899362,3cyclictest41-21ksoftirqd/319:35:213
19988993531,3cyclictest41-21ksoftirqd/320:10:143
19988993531,3cyclictest41-21ksoftirqd/319:15:013
19988993531,2cyclictest41-21ksoftirqd/323:14:593
19988993530,3cyclictest41-21ksoftirqd/319:40:183
19988993529,4cyclictest41-21ksoftirqd/322:28:383
19988993529,4cyclictest41-21ksoftirqd/322:06:523
138491350,0ptp4l401ktimersoftd/322:20:133
19988993429,3cyclictest41-21ksoftirqd/323:05:173
19988993429,3cyclictest41-21ksoftirqd/321:00:203
19988993428,4cyclictest41-21ksoftirqd/321:13:523
19988993428,4cyclictest41-21ksoftirqd/321:13:523
19988993428,4cyclictest41-21ksoftirqd/319:32:283
138491340,0ptp4l401ktimersoftd/321:30:263
19988993329,2cyclictest41-21ksoftirqd/323:50:013
19988993329,2cyclictest41-21ksoftirqd/323:50:003
19988993329,2cyclictest41-21ksoftirqd/300:30:003
19988993328,3cyclictest41-21ksoftirqd/323:20:003
19988993328,3cyclictest41-21ksoftirqd/323:20:003
19988993328,3cyclictest41-21ksoftirqd/322:50:443
19988993328,3cyclictest41-21ksoftirqd/321:48:563
19988993328,3cyclictest41-21ksoftirqd/320:54:593
19988993328,3cyclictest41-21ksoftirqd/319:25:173
19988993328,3cyclictest41-21ksoftirqd/300:05:193
19988993327,4cyclictest41-21ksoftirqd/323:23:023
19988993327,4cyclictest41-21ksoftirqd/320:32:493
19988993327,4cyclictest41-21ksoftirqd/320:17:413
19988993327,4cyclictest41-21ksoftirqd/319:45:403
19988993327,4cyclictest41-21ksoftirqd/319:23:253
19988993327,4cyclictest41-21ksoftirqd/300:10:053
19988993227,3cyclictest41-21ksoftirqd/323:40:183
19988993227,3cyclictest41-21ksoftirqd/321:05:183
138491320,0ptp4l401ktimersoftd/321:16:593
138491320,0ptp4l401ktimersoftd/319:50:163
19988993126,3cyclictest41-21ksoftirqd/323:38:173
19988993126,3cyclictest41-21ksoftirqd/321:50:113
19988993125,4cyclictest41-21ksoftirqd/323:27:033
19988993125,4cyclictest41-21ksoftirqd/320:49:543
19988993125,4cyclictest41-21ksoftirqd/300:32:543
19988993119,3cyclictest41-21ksoftirqd/323:34:593
138491300,0ptp4l401ktimersoftd/322:04:143
19988992824,2cyclictest41-21ksoftirqd/320:00:193
19988992823,3cyclictest13564-21irqrtprio22:10:183
19988992822,4cyclictest41-21ksoftirqd/300:39:243
19988992722,3cyclictest41-21ksoftirqd/321:25:173
19988992420,2cyclictest391rcuc/322:40:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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