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2026-04-07 - 13:02
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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 Tue Apr 07, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1476321660,6sleep01449899cyclictest21:30:010
1782221530,5sleep11449999cyclictest21:35:161
214221360,4sleep30-21swapper/319:50:263
617121330,3sleep11449999cyclictest20:00:191
1450099792,75cyclictest0-21swapper/200:30:292
14501996925,9cyclictest41-21ksoftirqd/321:45:163
14501996734,4cyclictest41-21ksoftirqd/320:05:003
14501996729,8cyclictest41-21ksoftirqd/320:15:003
14501996632,4cyclictest41-21ksoftirqd/300:15:153
14501996628,9cyclictest41-21ksoftirqd/322:05:003
14501996628,9cyclictest41-21ksoftirqd/321:35:083
14501996626,8cyclictest41-21ksoftirqd/323:45:263
14501996536,7cyclictest41-21ksoftirqd/322:05:263
14501996532,4cyclictest41-21ksoftirqd/300:00:143
14501996530,3cyclictest41-21ksoftirqd/320:45:263
14501996529,7cyclictest41-21ksoftirqd/323:35:163
1450099652,1cyclictest0-21swapper/221:20:292
14501996425,8cyclictest41-21ksoftirqd/320:33:453
14501996331,6cyclictest41-21ksoftirqd/320:15:263
14501996331,3cyclictest41-21ksoftirqd/323:15:013
134491630,4ptp4l0-21swapper/119:35:261
14501996231,4cyclictest41-21ksoftirqd/323:25:173
14501996229,4cyclictest41-21ksoftirqd/322:45:193
14501996228,8cyclictest41-21ksoftirqd/322:20:193
14501996226,8cyclictest41-21ksoftirqd/320:43:323
14501996225,8cyclictest41-21ksoftirqd/321:20:563
14501996221,8cyclictest41-21ksoftirqd/321:10:003
14501996129,8cyclictest41-21ksoftirqd/321:10:203
14501996125,8cyclictest41-21ksoftirqd/323:15:243
14501996124,8cyclictest41-21ksoftirqd/322:41:063
14501996033,6cyclictest41-21ksoftirqd/323:55:153
14501996032,8cyclictest41-21ksoftirqd/322:25:273
14501996032,3cyclictest41-21ksoftirqd/322:35:013
14501996022,8cyclictest41-21ksoftirqd/321:35:013
14501996022,5cyclictest41-21ksoftirqd/319:50:003
134491600,5ptp4l0-21swapper/121:00:151
134491600,5ptp4l0-21swapper/021:00:160
14501995829,7cyclictest41-21ksoftirqd/320:05:183
14501995828,3cyclictest41-21ksoftirqd/323:40:153
14501995827,3cyclictest41-21ksoftirqd/319:10:163
14501995826,7cyclictest41-21ksoftirqd/319:30:283
14501995825,8cyclictest41-21ksoftirqd/320:25:123
14501995824,7cyclictest41-21ksoftirqd/321:26:093
14501995822,4cyclictest41-21ksoftirqd/321:18:273
134491580,4ptp4l21739-21taskset21:45:041
134491580,4ptp4l0-21swapper/219:07:122
134491580,3ptp4l0-21swapper/300:30:013
134491580,3ptp4l0-21swapper/123:39:001
134491580,2ptp4l212-21systemd-journal23:10:240
14501995729,7cyclictest41-21ksoftirqd/300:05:253
14501995727,3cyclictest41-21ksoftirqd/321:55:173
14501995723,4cyclictest41-21ksoftirqd/320:53:153
134491570,4ptp4l443-21rs:main1
134491570,3ptp4l0-21swapper/322:15:023
134491570,3ptp4l0-21swapper/221:27:272
14501995625,8cyclictest41-21ksoftirqd/319:35:283
14501995625,7cyclictest41-21ksoftirqd/322:55:133
14501995624,9cyclictest41-21ksoftirqd/319:20:273
134491560,3ptp4l0-21swapper/300:24:123
134491560,3ptp4l0-21swapper/300:24:123
134491560,3ptp4l0-21swapper/221:13:392
134491560,3ptp4l0-21swapper/100:38:461
1450199556,3cyclictest41-21ksoftirqd/323:55:003
14501995527,8cyclictest41-21ksoftirqd/323:05:143
14501995526,8cyclictest41-21ksoftirqd/321:00:163
14501995526,7cyclictest41-21ksoftirqd/300:35:343
134491550,5ptp4l0-21swapper/319:07:213
134491550,4ptp4l0-21swapper/122:50:001
134491550,4ptp4l0-21swapper/021:24:120
134491550,3ptp4l0-21swapper/119:34:101
267542540,6sleep20-21swapper/221:55:142
14501995420,7cyclictest41-21ksoftirqd/319:55:253
1450099541,51cyclictest0-21swapper/223:00:292
134491540,5ptp4l0-21swapper/122:15:131
1450199532,7cyclictest41-21ksoftirqd/323:25:013
14501995320,8cyclictest41-21ksoftirqd/323:34:183
134491530,3ptp4l0-21swapper/122:02:091
134491530,3ptp4l0-21swapper/020:14:310
1450199522,7cyclictest0-21swapper/321:50:233
1450199522,3cyclictest0-21swapper/322:10:253
1450199522,3cyclictest0-21swapper/322:10:253
14501995222,8cyclictest41-21ksoftirqd/300:35:013
134491520,4ptp4l0-21swapper/320:38:173
134491520,4ptp4l0-21swapper/120:23:531
134491520,4ptp4l0-21swapper/023:40:560
134491520,3ptp4l0-21swapper/020:35:310
1450199517,6cyclictest41-21ksoftirqd/322:40:003
1450199512,7cyclictest0-21swapper/322:50:233
14501995126,7cyclictest41-21ksoftirqd/319:40:153
1450199512,3cyclictest41-21ksoftirqd/320:25:003
14501995121,10cyclictest41-21ksoftirqd/323:05:003
134491510,4ptp4l0-21swapper/123:07:541
134491510,4ptp4l0-21swapper/121:15:421
134491510,4ptp4l0-21swapper/023:27:310
134491510,4ptp4l0-21swapper/023:24:540
134491510,4ptp4l0-21swapper/021:39:550
134491510,4ptp4l0-21swapper/020:26:280
134491510,4ptp4l0-21swapper/019:46:080
134491510,4ptp4l0-21swapper/000:03:430
134491500,4ptp4l0-21swapper/023:04:400
134491500,4ptp4l0-21swapper/020:51:200
134491500,4ptp4l0-21swapper/000:17:360
134491500,4ptp4l0-21swapper/000:12:260
134491500,3ptp4l0-21swapper/119:29:271
134491500,3ptp4l0-21swapper/019:30:150
134491500,19ptp4l25-21ksoftirqd/122:45:591
99262490,4sleep10-21swapper/122:25:271
1450199494,2cyclictest41-21ksoftirqd/319:25:183
1450199492,6cyclictest121rcu_preempt21:43:513
1450199492,6cyclictest0-21swapper/320:55:173
1450199492,2cyclictest41-21ksoftirqd/319:20:003
134491490,9ptp4l0-21swapper/220:05:292
134491490,4ptp4l0-21swapper/119:45:451
134491490,4ptp4l0-21swapper/021:41:110
134491490,4ptp4l0-21swapper/021:25:540
134491490,4ptp4l0-21swapper/021:17:350
134491490,4ptp4l0-21swapper/021:10:560
134491490,3ptp4l0-21swapper/022:19:140
134491490,2ptp4l0-21swapper/000:31:470
134491480,4ptp4l0-21swapper/022:38:150
134491480,4ptp4l0-21swapper/021:09:440
134491480,4ptp4l0-21swapper/019:39:140
134491480,4ptp4l0-21swapper/000:06:160
134491480,3ptp4l0-21swapper/121:41:141
1450199473,7cyclictest0-21swapper/300:13:263
134491470,4ptp4l0-21swapper/000:29:410
134491470,3ptp4l0-21swapper/222:31:482
134491470,18ptp4l0-21swapper/123:45:261
134491470,13ptp4l0-21swapper/221:37:462
1450099461,43cyclictest0-21swapper/222:12:292
1450099461,43cyclictest0-21swapper/222:12:292
134491460,7ptp4l0-21swapper/023:56:200
134491460,4ptp4l0-21swapper/121:30:361
134491460,4ptp4l0-21swapper/022:52:360
134491460,3ptp4l0-21swapper/120:38:201
134491460,3ptp4l0-21swapper/100:32:161
134491460,3ptp4l0-21swapper/100:16:191
134491460,3ptp4l0-21swapper/020:25:000
134491460,10ptp4l0-21swapper/222:52:082
14498994526,5cyclictest9-21ksoftirqd/022:40:230
134491450,3ptp4l0-21swapper/222:45:312
134491450,3ptp4l0-21swapper/123:22:111
134491450,3ptp4l0-21swapper/121:05:371
134491450,3ptp4l0-21swapper/019:25:210
134491450,10ptp4l0-21swapper/200:21:142
134491450,10ptp4l0-21swapper/200:21:142
14498994411,5cyclictest9-21ksoftirqd/022:35:000
134491440,9ptp4l0-21swapper/219:24:092
134491440,9ptp4l0-21swapper/200:26:032
134491440,9ptp4l0-21swapper/200:07:502
134491440,4ptp4l0-21swapper/200:03:172
134491440,4ptp4l0-21swapper/023:36:270
134491440,3ptp4l0-21swapper/221:19:342
134491440,3ptp4l0-21swapper/119:52:541
134491440,10ptp4l0-21swapper/222:16:522
134491440,10ptp4l0-21swapper/219:54:102
1449899439,10cyclictest9-21ksoftirqd/022:55:180
14498994338,3cyclictest9-21ksoftirqd/023:20:000
14498994324,8cyclictest9-21ksoftirqd/023:09:350
134491430,9ptp4l0-21swapper/222:26:552
134491430,9ptp4l0-21swapper/221:08:262
134491430,7ptp4l19360-21cpuspeed20:30:132
134491430,7ptp4l0-21swapper/119:05:181
134491430,5ptp4l0-21swapper/222:05:132
134491430,5ptp4l0-21swapper/219:40:112
134491430,3ptp4l0-21swapper/221:50:292
1449899424,8cyclictest9-21ksoftirqd/019:16:260
134491420,9ptp4l0-21swapper/223:28:402
134491420,9ptp4l0-21swapper/221:33:062
134491420,9ptp4l0-21swapper/023:50:390
134491420,6ptp4l31741-21meminfo20:55:190
134491420,5ptp4l5757-21apt-get22:20:021
134491420,5ptp4l0-21swapper/223:50:122
134491420,4ptp4l21762-21apt-get21:45:102
134491420,4ptp4l18110-21apt-get23:55:131
134491420,4ptp4l11947-21apt-get20:15:011
134491420,4ptp4l0-21swapper/022:05:300
134491420,3ptp4l13392-21ls20:15:212
134491420,3ptp4l0-21swapper/019:50:090
134491420,1ptp4l0-21swapper/223:35:582
46198410,4rtkit-daemon0-21swapper/120:46:271
14500994112,27cyclictest0-21swapper/223:40:192
1449899417,6cyclictest9-21ksoftirqd/020:00:240
14498994112,8cyclictest9-21ksoftirqd/022:10:330
14498994112,8cyclictest9-21ksoftirqd/022:10:330
134491410,5ptp4l0-21swapper/220:25:362
134491410,5ptp4l0-21swapper/200:38:592
134491410,4ptp4l4399-21diskstats23:25:151
134491410,4ptp4l2909-21ls22:10:281
134491410,4ptp4l2909-21ls22:10:281
134491410,4ptp4l24212-21diskstats20:40:131
134491410,4ptp4l17652-21apt-get23:55:042
134491410,4ptp4l12900-21iostat21:25:191
134491410,4ptp4l11156-21ntp_states21:20:261
134491410,4ptp4l0-21swapper/122:30:211
134491410,4ptp4l0-21swapper/121:10:271
134491410,4ptp4l0-21swapper/120:13:171
134491410,4ptp4l0-21swapper/019:55:100
134491410,4ptp4l0-21swapper/019:40:370
134491410,4ptp4l0-21swapper/000:20:260
134491410,4ptp4l0-21swapper/000:20:260
134491410,3ptp4l30303-21ls22:00:270
134491410,3ptp4l26955-21apt-get23:05:132
134491410,3ptp4l19292-21apt-get20:30:111
1449899405,3cyclictest121rcu_preempt23:30:140
134491400,5ptp4l0-21swapper/222:00:292
134491400,5ptp4l0-21swapper/123:01:231
134491400,5ptp4l0-21swapper/100:00:201
134491400,5ptp4l0-21swapper/020:48:490
134491400,5ptp4l0-21swapper/020:30:160
134491400,5ptp4l0-21swapper/020:05:150
134491400,4ptp4l7812-21/usr/sbin/munin23:30:261
134491400,4ptp4l33-21ksoftirqd/223:20:222
134491400,4ptp4l31971-21df23:15:141
134491400,4ptp4l20816-21users19:20:271
134491400,4ptp4l17127-21df_inode19:15:131
134491400,4ptp4l14471-21sensors_temp22:35:251
134491400,4ptp4l0-21swapper/223:12:152
134491400,4ptp4l0-21swapper/222:41:022
134491400,4ptp4l0-21swapper/222:35:062
134491400,4ptp4l0-21swapper/221:02:132
134491400,4ptp4l0-21swapper/220:58:132
134491400,4ptp4l0-21swapper/220:04:252
134491400,4ptp4l0-21swapper/219:35:452
134491400,4ptp4l0-21swapper/219:27:582
134491400,4ptp4l0-21swapper/123:10:241
134491400,4ptp4l0-21swapper/122:05:141
134491400,4ptp4l0-21swapper/121:55:011
134491400,4ptp4l0-21swapper/121:50:241
134491400,4ptp4l0-21swapper/119:40:161
134491400,4ptp4l0-21swapper/100:29:501
134491400,4ptp4l0-21swapper/100:20:121
134491400,4ptp4l0-21swapper/100:20:121
134491400,4ptp4l0-21swapper/023:45:260
134491400,4ptp4l0-21swapper/022:46:080
134491400,4ptp4l0-21swapper/021:53:020
134491400,4ptp4l0-21swapper/021:45:250
134491400,4ptp4l0-21swapper/020:41:380
134491400,4ptp4l0-21swapper/019:21:210
134491400,3ptp4l29435-21ls20:50:192
134491400,3ptp4l23906-21apt-get20:40:122
134491400,3ptp4l16796-21python22:40:241
134491390,4ptp4l29612-21latency_hist00:20:002
134491390,4ptp4l0-21swapper/223:45:162
134491390,4ptp4l0-21swapper/223:30:462
134491390,4ptp4l0-21swapper/223:15:162
134491390,4ptp4l0-21swapper/222:21:072
134491390,4ptp4l0-21swapper/221:40:282
134491390,4ptp4l0-21swapper/220:49:232
134491390,4ptp4l0-21swapper/220:36:242
134491390,4ptp4l0-21swapper/220:20:162
134491390,4ptp4l0-21swapper/220:14:172
134491390,4ptp4l0-21swapper/219:55:192
134491390,4ptp4l0-21swapper/219:31:042
134491390,4ptp4l0-21swapper/219:17:352
134491390,4ptp4l0-21swapper/200:10:172
134491390,4ptp4l0-21swapper/123:52:191
134491390,4ptp4l0-21swapper/120:56:201
134491390,4ptp4l0-21swapper/120:07:131
134491390,4ptp4l0-21swapper/022:25:250
134491390,4ptp4l0-21swapper/022:20:010
134491390,4ptp4l0-21swapper/021:55:280
134491390,4ptp4l0-21swapper/020:16:550
134491390,4ptp4l0-21swapper/019:10:270
134491390,4ptp4l0-21swapper/019:05:140
134491390,4ptp4l0-21swapper/000:37:220
134491390,3ptp4l18116-21ntp_states20:25:221
134491390,3ptp4l0-21swapper/219:45:582
134491390,3ptp4l0-21swapper/100:13:581
134491390,2ptp4l15784-21ps19:10:232
134491380,3ptp4l0-21swapper/222:55:072
134491380,3ptp4l0-21swapper/123:40:501
134491380,3ptp4l0-21swapper/122:57:191
134491380,3ptp4l0-21swapper/120:50:211
134491380,3ptp4l0-21swapper/119:55:131
134491370,3ptp4l0-21swapper/100:07:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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