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2026-08-30 - 23:53
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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 Sun Aug 30, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3131421690,7sleep12641399cyclictest08:29:131
981721590,6sleep22641499cyclictest12:20:172
981721590,6sleep22641499cyclictest12:20:172
2172621480,4sleep32641599cyclictest09:15:293
2641499730,31cyclictest1633-21taskset12:00:402
2641499710,30cyclictest8659-21taskset11:08:332
2641499691,31cyclictest15684-21chrt11:21:332
2641499690,32cyclictest15699-21chrt12:32:342
2641499690,31cyclictest14746-21chrt07:54:402
2641499681,28cyclictest28721-21chrt07:15:082
2641499680,31cyclictest26694-21taskset09:29:402
2641499680,29cyclictest3855-21chrt10:56:052
2641499670,35cyclictest5903-21taskset08:44:272
2641499670,32cyclictest21847-21taskset09:16:522
2641499670,31cyclictest12665-21taskset10:05:392
2641499670,22cyclictest3450-21date07:30:002
2641499660,30cyclictest1502-21taskset08:35:082
2641499660,26cyclictest6303-21taskset11:02:472
2641499660,26cyclictest1762-21chrt10:54:292
2641499651,27cyclictest13465-21chrt12:29:052
2641499650,31cyclictest19564-21taskset09:12:032
2641499650,31cyclictest1124-21chrt08:33:272
2641499650,30cyclictest7880-21chrt08:45:272
2641499650,30cyclictest24443-21taskset10:30:422
2641499650,29cyclictest31368-21taskset08:29:542
2641499650,29cyclictest29514-21chrt11:51:542
2641499650,27cyclictest31239-21taskset09:39:112
2641499650,27cyclictest31239-21taskset09:39:112
48722640,6sleep12641399cyclictest12:10:141
2641499644,21cyclictest0-21swapper/210:44:092
2641499640,31cyclictest26455-21chrt08:18:522
2641499640,30cyclictest22752-21taskset11:38:542
2641499640,26cyclictest22223-21taskset10:26:412
284412630,4sleep10-21swapper/110:40:201
2641499630,28cyclictest17496-21taskset10:18:012
2641499630,26cyclictest28678-21taskset08:22:402
2641499630,26cyclictest19202-21chrt08:02:022
162652630,4sleep20-21swapper/207:55:242
2641499620,34cyclictest12732-21chrt08:58:472
2641499620,30cyclictest24065-21chrt09:20:332
2641499620,30cyclictest12243-21taskset07:47:062
2641499620,29cyclictest31724-21chrt11:55:472
2641499620,29cyclictest28446-21chrt07:14:282
2641499620,29cyclictest27383-21chrt11:49:012
2641499610,30cyclictest6277-21taskset12:10:312
2641499610,29cyclictest20036-21taskset10:23:072
2641499610,26cyclictest17904-21taskset12:36:232
2641499610,26cyclictest10746-21chrt11:10:502
2641499610,26cyclictest10746-21chrt11:10:502
2641499610,20cyclictest212-21systemd-journal10:04:302
2641499600,30cyclictest3687-21chrt09:48:422
2641499600,30cyclictest10426-21taskset08:53:402
134491600,4ptp4l0-21swapper/011:25:170
2641499590,26cyclictest25014-21taskset10:35:032
2641499590,26cyclictest15037-21taskset09:02:562
2641499590,26cyclictest1070-21taskset09:40:352
2641499590,25cyclictest5235-21chrt07:30:492
134491590,3ptp4l9-21ksoftirqd/008:35:190
134491590,3ptp4l0-21swapper/012:15:140
2641499580,26cyclictest17211-21chrt09:06:172
2641499570,25cyclictest8248-21runrttasks09:58:162
134491570,4ptp4l8448-21diskstats07:40:173
134491570,4ptp4l0-21swapper/310:40:013
134491570,4ptp4l0-21swapper/009:09:160
267902560,5sleep30-21swapper/307:10:163
2641499560,26cyclictest16189-21runrttasks11:25:042
134491560,4ptp4l0-21swapper/110:01:391
134491560,4ptp4l0-21swapper/109:14:551
134491560,3ptp4l0-21swapper/309:57:383
134491560,3ptp4l0-21swapper/308:42:003
134491560,3ptp4l0-21swapper/011:35:320
134491550,5ptp4l0-21swapper/309:47:483
134491550,4ptp4l0-21swapper/309:43:583
134491550,4ptp4l0-21swapper/008:57:570
134491550,3ptp4l19703-21grep08:05:130
134491540,5ptp4l0-21swapper/107:08:241
134491540,5ptp4l0-21swapper/008:00:270
134491540,4ptp4l0-21swapper/308:53:053
134491540,4ptp4l0-21swapper/108:43:291
134491540,3ptp4l0-21swapper/011:44:150
134491540,3ptp4l0-21swapper/011:44:150
134491530,4ptp4l0-21swapper/312:28:443
134491530,3ptp4l0-21swapper/309:10:233
134491530,3ptp4l0-21swapper/209:30:012
134491530,2ptp4l11339-21kworker/2:012:05:192
134491520,4ptp4l0-21swapper/309:37:423
134491520,4ptp4l0-21swapper/309:37:423
134491520,4ptp4l0-21swapper/107:36:221
134491510,5ptp4l2641299cyclictest10:01:400
134491510,4ptp4l0-21swapper/109:36:291
134491510,4ptp4l0-21swapper/109:36:291
2641499500,21cyclictest1301-21snmpd07:40:232
134491500,6ptp4l0-21swapper/307:53:393
134491500,4ptp4l0-21swapper/009:34:490
134491490,7ptp4l25099-21ls07:05:220
134491490,4ptp4l0-21swapper/312:06:293
134491490,4ptp4l0-21swapper/310:49:243
134491490,4ptp4l0-21swapper/011:30:310
134491490,4ptp4l0-21swapper/007:32:370
134491490,4ptp4l0-21swapper/007:26:030
134491480,4ptp4l0-21swapper/112:23:281
134491480,4ptp4l0-21swapper/112:23:281
134491480,4ptp4l0-21swapper/007:48:160
2641499472,19cyclictest0-21swapper/209:50:062
134491470,4ptp4l0-21swapper/310:54:143
134491470,4ptp4l0-21swapper/107:12:101
134491470,4ptp4l0-21swapper/009:55:230
134491470,3ptp4l0-21swapper/110:05:201
325442460,5sleep09-21ksoftirqd/012:00:140
2641499460,28cyclictest7807-21taskset07:39:162
2641499460,25cyclictest15081-21runrttasks10:11:302
134491460,4ptp4l0-21swapper/009:25:320
134491460,4ptp4l0-21swapper/009:02:480
134491450,5ptp4l2073-21apt-get10:55:123
134491450,4ptp4l0-21swapper/107:23:301
134491450,3ptp4l0-21swapper/111:47:251
134491440,4ptp4l0-21swapper/310:14:333
134491440,4ptp4l0-21swapper/008:31:270
134491440,3ptp4l19717-21ls10:20:270
134491440,3ptp4l0-21swapper/312:16:503
134491440,3ptp4l0-21swapper/012:23:280
134491440,3ptp4l0-21swapper/012:23:280
134491430,8ptp4l0-21swapper/208:08:032
134491430,6ptp4l9-21ksoftirqd/010:45:110
134491430,4ptp4l29223-21ls11:50:280
134491430,4ptp4l13799-21apt-get12:30:131
134491430,4ptp4l0-21swapper/311:28:403
134491430,4ptp4l0-21swapper/009:51:360
134491430,4ptp4l0-21swapper/007:58:480
134491430,3ptp4l28739-21apt-get07:15:123
134491430,3ptp4l0-21swapper/307:39:063
134491430,3ptp4l0-21swapper/110:56:361
134491430,10ptp4l0-21swapper/312:11:453
134491430,10ptp4l0-21swapper/308:45:443
134491430,10ptp4l0-21swapper/211:18:372
134491420,8ptp4l0-21swapper/007:11:040
134491420,6ptp4l0-21swapper/007:52:350
134491420,5ptp4l0-21swapper/312:30:223
134491420,5ptp4l0-21swapper/311:05:133
134491420,5ptp4l0-21swapper/309:05:143
134491420,5ptp4l0-21swapper/207:20:202
134491420,5ptp4l0-21swapper/008:50:230
134491420,4ptp4l29142-21ls11:50:273
134491420,4ptp4l25617-21ntp_states08:15:223
134491420,4ptp4l21987-21apt-get08:10:120
134491420,4ptp4l12352-21irqstats12:25:190
134491420,4ptp4l10436-21apt-get07:45:143
134491420,4ptp4l0-21swapper/307:25:133
134491420,4ptp4l0-21swapper/010:38:180
134491420,3ptp4l7849-21ntp_states11:05:220
134491420,10ptp4l0-21swapper/309:20:213
134491410,6ptp4l0-21swapper/008:19:450
134491410,5ptp4l0-21swapper/311:15:133
134491410,5ptp4l0-21swapper/310:25:153
134491410,5ptp4l0-21swapper/012:30:250
134491410,5ptp4l0-21swapper/007:15:240
134491410,4ptp4l28877-21apt-get08:25:013
134491410,4ptp4l2602-21ls08:35:213
134491410,4ptp4l25963-21/usr/sbin/munin11:45:170
134491410,4ptp4l25623-21memory09:25:213
134491410,4ptp4l21922-21ntp_states11:35:221
134491410,4ptp4l15613-21apt-get10:15:113
134491410,4ptp4l11543-21df11:15:151
134491410,4ptp4l0-21swapper/312:00:283
134491410,4ptp4l0-21swapper/309:50:223
134491410,4ptp4l0-21swapper/110:39:351
134491410,4ptp4l0-21swapper/010:50:160
134491410,4ptp4l0-21swapper/010:40:110
134491410,4ptp4l0-21swapper/010:15:280
134491410,4ptp4l0-21swapper/010:11:120
134491410,4ptp4l0-21swapper/009:13:270
134491410,3ptp4l6885-21apt-get12:15:122
134491410,3ptp4l32392-21ntp_states07:20:223
134491410,3ptp4l27031-21df08:20:131
134491410,3ptp4l23121-21apt-get11:40:133
134491410,3ptp4l23121-21apt-get11:40:133
134491410,3ptp4l20445-21apt-get10:25:130
134491410,3ptp4l20055-21apt-get09:15:111
134491410,2ptp4l121rcu_preempt10:39:313
26415994035,3cyclictest41-21ksoftirqd/310:05:003
134491400,6ptp4l16893-21irqrtprio12:35:203
134491400,5ptp4l0-21swapper/310:30:133
134491400,5ptp4l0-21swapper/308:31:473
134491400,5ptp4l0-21swapper/211:40:232
134491400,5ptp4l0-21swapper/211:40:232
134491400,5ptp4l0-21swapper/112:09:101
134491400,5ptp4l0-21swapper/108:55:111
134491400,4ptp4l3781-21df_abs07:30:153
134491400,4ptp4l31930-21df_inode08:30:151
134491400,4ptp4l27248-21perl08:20:153
134491400,4ptp4l23491-21ntp_states09:20:251
134491400,4ptp4l1317-21runrttasks07:05:052
134491400,4ptp4l0-21swapper/312:20:233
134491400,4ptp4l0-21swapper/312:20:233
134491400,4ptp4l0-21swapper/311:45:493
134491400,4ptp4l0-21swapper/310:23:193
134491400,4ptp4l0-21swapper/309:31:153
134491400,4ptp4l0-21swapper/308:55:223
134491400,4ptp4l0-21swapper/111:00:201
134491400,4ptp4l0-21swapper/109:49:091
134491400,4ptp4l0-21swapper/108:45:151
134491400,4ptp4l0-21swapper/108:36:391
134491400,4ptp4l0-21swapper/011:55:230
134491400,4ptp4l0-21swapper/011:01:050
134491400,4ptp4l0-21swapper/010:31:050
134491400,4ptp4l0-21swapper/009:46:070
134491400,4ptp4l0-21swapper/009:38:330
134491400,4ptp4l0-21swapper/009:38:330
134491400,4ptp4l0-21swapper/009:23:590
134491400,4ptp4l0-21swapper/009:15:170
134491400,4ptp4l0-21swapper/008:47:350
134491400,4ptp4l0-21swapper/008:40:230
134491400,4ptp4l0-21swapper/007:42:020
134491400,4ptp4l0-21swapper/007:22:090
134491400,3ptp4l17396-21apt-get08:00:123
134491400,2ptp4l14127-21ls09:00:223
134491390,5ptp4l2641299cyclictest11:11:220
134491390,5ptp4l2641299cyclictest11:11:220
134491390,5ptp4l0-21swapper/311:30:133
134491390,5ptp4l0-21swapper/307:05:033
134491390,4ptp4l4425-21/usr/sbin/munin11:00:153
134491390,4ptp4l351-21ls09:40:220
134491390,4ptp4l2641399cyclictest07:29:461
134491390,4ptp4l19679-21/usr/sbin/munin08:05:273
134491390,4ptp4l0-21swapper/311:35:073
134491390,4ptp4l0-21swapper/311:20:213
134491390,4ptp4l0-21swapper/311:11:123
134491390,4ptp4l0-21swapper/311:11:123
134491390,4ptp4l0-21swapper/310:05:153
134491390,4ptp4l0-21swapper/308:10:223
134491390,4ptp4l0-21swapper/210:46:122
134491390,4ptp4l0-21swapper/112:03:121
134491390,4ptp4l0-21swapper/111:07:171
134491390,4ptp4l0-21swapper/110:51:451
134491390,4ptp4l0-21swapper/110:34:331
134491390,4ptp4l0-21swapper/110:25:171
134491390,4ptp4l0-21swapper/109:57:031
134491390,4ptp4l0-21swapper/109:53:381
134491390,4ptp4l0-21swapper/109:40:241
134491390,4ptp4l0-21swapper/109:28:391
134491390,4ptp4l0-21swapper/108:15:211
134491390,4ptp4l0-21swapper/108:11:031
134491390,4ptp4l0-21swapper/107:55:141
134491390,4ptp4l0-21swapper/107:46:531
134491390,4ptp4l0-21swapper/107:30:191
134491390,4ptp4l0-21swapper/012:13:030
134491390,4ptp4l0-21swapper/012:07:410
134491390,4ptp4l0-21swapper/011:20:250
134491390,4ptp4l0-21swapper/011:15:240
134491390,4ptp4l0-21swapper/010:05:010
134491390,4ptp4l0-21swapper/008:27:000
134491390,4ptp4l0-21swapper/008:20:170
134491390,4ptp4l0-21swapper/007:35:280
134491390,3ptp4l18726-21/usr/sbin/munin11:30:152
134491390,3ptp4l12927-21ls12:25:271
134491390,3ptp4l0-21swapper/311:55:073
134491390,3ptp4l0-21swapper/110:11:581
134491390,3ptp4l0-21swapper/109:01:221
134491390,3ptp4l0-21swapper/012:37:130
134491380,4ptp4l0-21swapper/307:55:153
134491380,4ptp4l0-21swapper/112:37:221
134491380,4ptp4l0-21swapper/111:56:181
134491380,4ptp4l0-21swapper/111:52:241
134491380,4ptp4l0-21swapper/111:41:141
134491380,4ptp4l0-21swapper/111:41:141
134491380,4ptp4l0-21swapper/111:22:301
134491380,4ptp4l0-21swapper/110:20:011
134491380,4ptp4l0-21swapper/108:50:111
134491380,4ptp4l0-21swapper/108:06:471
134491380,4ptp4l0-21swapper/108:00:441
134491380,4ptp4l0-21swapper/010:55:140
134491380,3ptp4l22296-21diskstats08:10:162
134491380,3ptp4l0-21swapper/112:16:281
134491380,3ptp4l0-21swapper/110:18:331
134491380,3ptp4l0-21swapper/109:30:201
134491380,3ptp4l0-21swapper/107:44:491
134491380,3ptp4l0-21swapper/107:15:111
134491370,3ptp4l0-21swapper/111:11:171
134491370,3ptp4l0-21swapper/111:11:171
134491370,3ptp4l0-21swapper/109:05:441
134491370,3ptp4l0-21swapper/107:53:141
134491360,3ptp4l0-21swapper/111:30:411
134491360,3ptp4l0-21swapper/111:25:091
134491360,3ptp4l0-21swapper/110:45:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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