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2026-07-31 - 22:04
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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 rackdslot1.osadl.org (updated Fri Jul 31, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3033021540,2sleep03105599cyclictest10:35:240
2497521510,6sleep23105799cyclictest10:25:152
1106621430,3sleep23105799cyclictest08:45:182
1477621410,3sleep33105899cyclictest07:45:013
3008621380,7sleep03105599cyclictest09:25:190
134491700,3ptp4l121rcu_preempt07:15:132
31056996832,4cyclictest25-21ksoftirqd/112:35:001
31058996624,6cyclictest41-21ksoftirqd/309:30:273
134491660,4ptp4l6927-21ntp_states08:35:243
31056996429,4cyclictest25-21ksoftirqd/109:05:151
31055996422,6cyclictest9-21ksoftirqd/010:55:240
31056996334,3cyclictest25-21ksoftirqd/112:05:271
31056996334,3cyclictest25-21ksoftirqd/112:05:271
31056996332,4cyclictest25-21ksoftirqd/109:20:251
31056996329,3cyclictest25-21ksoftirqd/108:05:181
31056996325,6cyclictest25-21ksoftirqd/110:20:001
31055996327,3cyclictest9-21ksoftirqd/009:15:150
31055996325,4cyclictest9-21ksoftirqd/007:25:000
31056996233,4cyclictest25-21ksoftirqd/110:10:251
31056996231,3cyclictest25-21ksoftirqd/111:15:141
31056996230,4cyclictest25-21ksoftirqd/107:35:221
31056996225,4cyclictest25-21ksoftirqd/107:30:211
31056996224,4cyclictest25-21ksoftirqd/108:15:201
31055996234,4cyclictest9-21ksoftirqd/012:00:250
31056996132,3cyclictest25-21ksoftirqd/107:55:141
31056996129,2cyclictest25-21ksoftirqd/110:44:141
31055996132,3cyclictest9-21ksoftirqd/012:30:270
31055996129,3cyclictest9-21ksoftirqd/010:50:240
31056996028,3cyclictest25-21ksoftirqd/107:40:241
31056996027,7cyclictest25-21ksoftirqd/112:20:151
31055996030,3cyclictest9-21ksoftirqd/011:15:000
31055996027,3cyclictest9-21ksoftirqd/010:10:130
31055996019,5cyclictest9-21ksoftirqd/010:45:250
134491600,5ptp4l0-21swapper/107:15:141
31056995928,3cyclictest25-21ksoftirqd/107:28:061
31056995927,3cyclictest25-21ksoftirqd/107:20:191
31056995921,4cyclictest25-21ksoftirqd/108:00:171
134491590,4ptp4l0-21swapper/310:50:193
134491590,4ptp4l0-21swapper/212:01:172
134491590,3ptp4l0-21swapper/312:22:553
134491590,3ptp4l0-21swapper/311:30:193
31056995829,4cyclictest25-21ksoftirqd/111:10:221
31056995826,4cyclictest25-21ksoftirqd/111:25:131
31056995826,4cyclictest25-21ksoftirqd/108:14:511
31056995826,3cyclictest25-21ksoftirqd/108:20:281
31056995823,4cyclictest25-21ksoftirqd/110:05:001
3105599587,3cyclictest9-21ksoftirqd/007:40:000
134491580,4ptp4l0-21swapper/210:05:262
134491580,3ptp4l0-21swapper/311:26:553
31058995718,4cyclictest41-21ksoftirqd/308:40:293
31056995725,4cyclictest25-21ksoftirqd/109:55:251
31056995725,3cyclictest25-21ksoftirqd/107:52:211
31056995723,3cyclictest25-21ksoftirqd/112:10:221
31055995726,4cyclictest9-21ksoftirqd/009:00:280
31055995723,3cyclictest9-21ksoftirqd/012:10:170
31055995721,3cyclictest9-21ksoftirqd/011:07:150
134491570,5ptp4l0-21swapper/207:20:252
134491570,4ptp4l0-21swapper/211:52:372
134491570,4ptp4l0-21swapper/210:15:142
134491570,4ptp4l0-21swapper/207:55:272
134491570,4ptp4l0-21swapper/111:20:191
134491570,3ptp4l0-21swapper/310:40:173
134491570,3ptp4l0-21swapper/208:20:202
134491570,3ptp4l0-21swapper/207:40:262
31056995624,3cyclictest25-21ksoftirqd/111:34:521
3105599567,7cyclictest9-21ksoftirqd/009:40:000
31055995625,3cyclictest9-21ksoftirqd/008:15:180
31055995624,3cyclictest9-21ksoftirqd/010:20:200
31055995619,2cyclictest9-21ksoftirqd/009:32:070
134491560,3ptp4l0-21swapper/311:15:043
31056995527,4cyclictest25-21ksoftirqd/112:35:001
31056995524,3cyclictest25-21ksoftirqd/110:50:491
3105599556,7cyclictest9-21ksoftirqd/008:30:300
31055995525,8cyclictest9-21ksoftirqd/012:20:170
31055995525,3cyclictest9-21ksoftirqd/008:25:560
31055995522,10cyclictest9-21ksoftirqd/007:25:190
3105599550,8cyclictest9-21ksoftirqd/008:04:590
134491550,4ptp4l0-21swapper/307:50:163
134491550,3ptp4l0-21swapper/310:01:243
134491550,3ptp4l0-21swapper/308:16:143
31056995422,3cyclictest25-21ksoftirqd/110:55:271
31056995417,3cyclictest25-21ksoftirqd/108:55:221
31055995424,3cyclictest9-21ksoftirqd/009:40:150
31055995424,3cyclictest9-21ksoftirqd/009:40:150
31055995422,9cyclictest9-21ksoftirqd/010:05:190
253532540,4sleep30-21swapper/311:35:163
134491540,4ptp4l0-21swapper/210:35:552
134491540,3ptp4l0-21swapper/212:10:232
134491540,3ptp4l0-21swapper/212:09:432
134491540,3ptp4l0-21swapper/212:09:432
134491540,3ptp4l0-21swapper/207:46:582
3105699535,8cyclictest25-21ksoftirqd/112:25:191
3105699533,8cyclictest25-21ksoftirqd/108:50:291
31056995326,4cyclictest25-21ksoftirqd/109:10:251
31056995324,9cyclictest25-21ksoftirqd/111:50:001
31056995323,3cyclictest25-21ksoftirqd/109:25:251
31056995320,3cyclictest25-21ksoftirqd/111:55:211
3105599533,9cyclictest9-21ksoftirqd/008:45:310
3105599533,8cyclictest9-21ksoftirqd/011:29:590
3105599533,8cyclictest9-21ksoftirqd/007:45:280
3105599533,8cyclictest9-21ksoftirqd/007:35:000
3105599533,8cyclictest0-21swapper/008:40:170
31055995327,3cyclictest9-21ksoftirqd/012:35:170
31055995325,3cyclictest9-21ksoftirqd/009:05:270
31055995317,3cyclictest9-21ksoftirqd/008:05:330
134491530,5ptp4l0-21swapper/007:06:090
134491530,5ptp4l0-21swapper/007:06:090
134491530,4ptp4l0-21swapper/011:20:260
134491530,3ptp4l0-21swapper/208:30:012
31056995224,4cyclictest25-21ksoftirqd/112:00:141
31056995216,3cyclictest25-21ksoftirqd/110:20:251
3105599526,9cyclictest9-21ksoftirqd/012:05:280
3105599526,9cyclictest9-21ksoftirqd/012:05:280
3105599526,3cyclictest9-21ksoftirqd/011:35:240
134491520,4ptp4l0-21swapper/309:55:523
134491520,4ptp4l0-21swapper/309:37:583
134491520,4ptp4l0-21swapper/309:24:083
31056995129,3cyclictest25-21ksoftirqd/109:31:521
31056995128,3cyclictest25-21ksoftirqd/109:40:131
31056995128,3cyclictest25-21ksoftirqd/109:40:131
31056995122,3cyclictest25-21ksoftirqd/107:14:051
3105599511,8cyclictest9-21ksoftirqd/009:20:270
134491510,4ptp4l0-21swapper/310:45:013
134491510,4ptp4l0-21swapper/212:23:072
134491510,3ptp4l0-21swapper/207:36:062
134491510,3ptp4l0-21swapper/207:10:142
3105699505,8cyclictest25-21ksoftirqd/110:30:161
31055995022,3cyclictest9-21ksoftirqd/007:12:260
31055995019,6cyclictest9-21ksoftirqd/011:00:270
134491500,4ptp4l0-21swapper/310:28:373
134491500,3ptp4l0-21swapper/308:52:083
31058994910,4cyclictest41-21ksoftirqd/311:00:273
3105699494,3cyclictest25-21ksoftirqd/108:35:281
31056994932,5cyclictest25-21ksoftirqd/108:45:241
31056994916,6cyclictest25-21ksoftirqd/110:45:251
3105599496,3cyclictest9-21ksoftirqd/011:15:230
3105599495,10cyclictest9-21ksoftirqd/008:37:180
3105599493,7cyclictest9-21ksoftirqd/009:10:190
31055994934,4cyclictest9-21ksoftirqd/009:55:280
134491490,5ptp4l0-21swapper/007:15:240
134491490,4ptp4l0-21swapper/310:56:523
134491490,4ptp4l0-21swapper/309:16:003
134491490,4ptp4l0-21swapper/307:16:273
134491490,4ptp4l0-21swapper/212:36:102
134491490,4ptp4l0-21swapper/209:50:332
134491490,4ptp4l0-21swapper/209:00:432
134491490,3ptp4l0-21swapper/208:00:322
31056994833,4cyclictest25-21ksoftirqd/108:40:261
31056994832,5cyclictest25-21ksoftirqd/111:05:201
31056994832,4cyclictest25-21ksoftirqd/111:40:301
31056994830,8cyclictest25-21ksoftirqd/109:00:281
31056994815,7cyclictest25-21ksoftirqd/109:18:131
31056994814,7cyclictest25-21ksoftirqd/110:08:431
3105599487,2cyclictest9-21ksoftirqd/010:25:220
31055994833,4cyclictest9-21ksoftirqd/010:30:260
3105599482,10cyclictest9-21ksoftirqd/008:51:330
134491480,4ptp4l0-21swapper/311:05:493
134491480,4ptp4l0-21swapper/310:08:103
134491480,4ptp4l0-21swapper/309:47:493
134491480,4ptp4l0-21swapper/308:04:433
134491480,4ptp4l0-21swapper/307:45:033
134491480,4ptp4l0-21swapper/307:25:473
134491480,4ptp4l0-21swapper/209:18:592
134491480,4ptp4l0-21swapper/111:38:041
134491480,3ptp4l0-21swapper/208:08:352
134491480,1ptp4l4164-21kworker/2:208:43:392
31056994734,4cyclictest25-21ksoftirqd/109:45:161
31056994731,6cyclictest25-21ksoftirqd/108:25:151
3105599474,9cyclictest9-21ksoftirqd/007:42:450
31055994742,3cyclictest101ktimersoftd/012:30:010
31055994733,4cyclictest9-21ksoftirqd/008:55:260
3105599472,8cyclictest9-21ksoftirqd/007:51:110
31055994728,10cyclictest9-21ksoftirqd/008:20:270
31055994719,3cyclictest9-21ksoftirqd/009:50:130
31055994714,3cyclictest9-21ksoftirqd/011:45:240
31055994713,8cyclictest9-21ksoftirqd/007:55:170
3105599470,9cyclictest9-21ksoftirqd/010:20:010
134491470,4ptp4l0-21swapper/210:58:192
134491470,3ptp4l0-21swapper/312:12:263
134491470,3ptp4l0-21swapper/307:12:343
134491470,3ptp4l0-21swapper/211:41:172
134491470,3ptp4l0-21swapper/211:21:242
134491470,3ptp4l0-21swapper/211:00:362
134491470,3ptp4l0-21swapper/210:00:572
134491470,14ptp4l121rcu_preempt07:05:021
134491470,14ptp4l121rcu_preempt07:05:021
3105699466,2cyclictest25-21ksoftirqd/108:34:211
31056994634,3cyclictest25-21ksoftirqd/111:00:201
3105699463,3cyclictest25-21ksoftirqd/107:47:021
31056994631,4cyclictest25-21ksoftirqd/109:35:181
31056994628,10cyclictest25-21ksoftirqd/110:25:281
3105599463,3cyclictest121rcu_preempt11:33:280
31055994632,4cyclictest9-21ksoftirqd/012:15:280
134491460,4ptp4l0-21swapper/309:42:233
134491460,4ptp4l0-21swapper/309:42:233
134491460,4ptp4l0-21swapper/209:09:332
134491460,4ptp4l0-21swapper/208:12:222
134491460,3ptp4l0-21swapper/211:55:232
134491460,3ptp4l0-21swapper/211:31:012
134491460,3ptp4l0-21swapper/208:50:232
31058994519,7cyclictest41-21ksoftirqd/311:53:473
31056994529,6cyclictest25-21ksoftirqd/109:50:271
3105699450,2cyclictest121rcu_preempt12:15:141
31055994529,4cyclictest9-21ksoftirqd/010:40:190
3105599451,9cyclictest9-21ksoftirqd/011:41:020
3105599450,3cyclictest9-21ksoftirqd/010:05:000
134491450,9ptp4l0-21swapper/009:47:350
134491450,4ptp4l0-21swapper/312:34:303
134491450,4ptp4l0-21swapper/308:49:323
134491450,4ptp4l0-21swapper/208:31:192
134491450,3ptp4l0-21swapper/212:25:252
134491450,3ptp4l0-21swapper/211:35:232
134491450,3ptp4l0-21swapper/211:16:312
134491450,10ptp4l0-21swapper/210:31:352
134491450,10ptp4l0-21swapper/210:13:092
3105899441,40cyclictest29634-21fschecks_count10:35:173
3105899440,3cyclictest121rcu_preempt11:22:433
31056994431,3cyclictest25-21ksoftirqd/110:35:211
3105599443,8cyclictest9-21ksoftirqd/011:51:490
3105599442,7cyclictest0-21swapper/012:00:000
3105599442,6cyclictest9-21ksoftirqd/008:11:530
134691440,3getstats0-21swapper/310:20:563
134491440,4ptp4l0-21swapper/211:47:202
134491440,4ptp4l0-21swapper/211:08:442
134491440,3ptp4l0-21swapper/212:17:012
3105899435,5cyclictest41-21ksoftirqd/308:31:573
3105899434,13cyclictest137891phc2sys07:30:163
3105899430,2cyclictest121rcu_preempt09:03:343
134491430,4ptp4l0-21swapper/312:05:373
134491430,4ptp4l0-21swapper/312:05:363
134491430,4ptp4l0-21swapper/308:07:133
134491430,4ptp4l0-21swapper/209:34:272
134491430,3ptp4l4088-21apt-get10:50:122
31058994211,6cyclictest41-21ksoftirqd/308:30:003
134491420,5ptp4l0-21swapper/311:45:113
134491420,5ptp4l0-21swapper/311:40:233
134491420,4ptp4l6193-21apt-get09:45:122
134491420,4ptp4l0-21swapper/310:15:333
134491420,4ptp4l0-21swapper/310:10:503
134491420,3ptp4l0-21swapper/209:58:252
3105899411,5cyclictest121rcu_preempt07:57:433
3105899411,2cyclictest121rcu_preempt09:26:373
3105899410,2cyclictest121rcu_preempt12:20:003
31056994128,3cyclictest25-21ksoftirqd/111:55:001
134491410,5ptp4l0-21swapper/308:20:123
134491410,5ptp4l0-21swapper/307:20:173
134491410,5ptp4l0-21swapper/211:10:172
134491410,4ptp4l5657-21apt-get07:25:122
134491410,4ptp4l15282-21apt-get08:55:123
134491410,4ptp4l1301-21snmpd07:37:553
134491410,4ptp4l0-21swapper/312:35:163
134491410,4ptp4l0-21swapper/312:00:203
134491410,4ptp4l0-21swapper/207:52:362
134491410,3ptp4l8490-21apt-get09:50:133
134491410,3ptp4l3894-21apt-get09:40:122
134491410,3ptp4l3894-21apt-get09:40:122
134491410,3ptp4l28528-21ls09:20:292
134491410,3ptp4l22411-21apt-get09:10:122
134491400,4ptp4l32191-21awk10:40:182
134491400,4ptp4l27918-21memory10:30:213
134491400,4ptp4l0-21swapper/211:27:552
134491400,3ptp4l23315-21ls10:20:212
134491400,3ptp4l0-21swapper/309:14:073
134491400,3ptp4l0-21swapper/208:37:322
134491390,5ptp4l20101-21/usr/sbin/munin09:05:293
134491390,5ptp4l0-21swapper/208:15:172
134491390,4ptp4l15268-21/usr/sbin/munin08:55:162
134491390,4ptp4l0-21swapper/312:25:193
134491390,4ptp4l0-21swapper/311:55:133
134491390,4ptp4l0-21swapper/311:10:163
134491390,4ptp4l0-21swapper/207:30:272
134491390,3ptp4l29323-21apt-get09:25:122
134491390,3ptp4l19070-21meminfo12:30:222
134491380,4ptp4l0-21swapper/308:10:203
134491380,4ptp4l0-21swapper/210:45:212
134491380,3ptp4l0-21swapper/209:35:162
287072224,11sleep30-21swapper/307:05:143
287072224,11sleep30-21swapper/307:05:143
137891152,7phc2sys28722-21apt-get07:05:142
137891152,7phc2sys28722-21apt-get07:05:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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