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2026-08-11 - 08:35
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Tue Aug 11, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3081199690,25cyclictest32680-21tr21:30:240
3081199670,22cyclictest18110-21cut19:50:190
3081199651,25cyclictest3333-21runrttasks23:55:320
3081199650,27cyclictest5775-21seq00:02:100
3081199620,31cyclictest10347-21cron20:45:000
134491620,3ptp4l1653-21apt-get22:45:141
3081199611,25cyclictest31417-21seq23:49:470
3081199610,26cyclictest7440-21seq19:29:470
3081199610,25cyclictest26538-21seq21:17:460
3081199602,23cyclictest0-21swapper/000:07:520
3081199601,28cyclictest19553-21seq21:02:180
3081199601,27cyclictest28716-21runrttasks22:31:560
3081199601,26cyclictest12594-21seq20:49:220
3081199600,26cyclictest30823-21seq20:15:440
3081199600,26cyclictest26789-21seq20:10:020
3081199600,25cyclictest5750-21seq21:43:050
3081199600,25cyclictest10269-21seq21:52:120
3081199600,24cyclictest24217-21taskset21:12:320
134491600,6ptp4l25-21ksoftirqd/119:10:561
134491600,5ptp4l0-21swapper/123:00:201
134491600,5ptp4l0-21swapper/123:00:201
3081399592,2cyclictest0-21swapper/223:10:282
3081199592,26cyclictest26399-21seq22:26:430
3081199592,22cyclictest0-21swapper/023:32:500
3081199590,27cyclictest681-21seq19:15:060
3081199590,27cyclictest23780-21seq20:01:350
3081199590,26cyclictest10603-21seq00:12:380
134491590,4ptp4l0-21swapper/322:28:303
3081199582,22cyclictest0-21swapper/023:43:060
3081199582,22cyclictest0-21swapper/019:33:210
3081199582,22cyclictest0-21swapper/000:31:230
3081199580,26cyclictest31154-21seq22:38:380
3081199580,25cyclictest8038-21taskset21:47:570
3081199580,24cyclictest7765-21runrttasks20:36:420
3081199580,24cyclictest15092-21seq23:12:550
134491580,3ptp4l0-21swapper/321:45:433
3081199572,21cyclictest0-21swapper/023:04:590
3081199572,21cyclictest0-21swapper/023:04:590
3081199571,27cyclictest1300-21seq22:44:040
3081199570,27cyclictest19646-21seq22:14:230
3081199570,25cyclictest835-21seq20:22:140
134491570,4ptp4l0-21swapper/300:10:283
134491570,3ptp4l0-21swapper/121:00:151
3081199562,23cyclictest0-21swapper/021:29:510
3081199562,23cyclictest0-21swapper/021:29:500
3081199562,22cyclictest0-21swapper/019:56:320
3081199562,22cyclictest0-21swapper/000:30:000
3081199560,27cyclictest24243-21seq22:23:260
3081199560,27cyclictest21830-21seq22:17:160
3081199560,25cyclictest5085-21seq19:24:010
3081199560,25cyclictest5085-21seq19:24:010
3081199560,25cyclictest12760-21seq00:15:550
134491560,14ptp4l29388-21apt-get23:45:142
134491560,12ptp4l0-21swapper/200:11:542
3081199552,22cyclictest0-21swapper/019:38:060
3081199552,21cyclictest0-21swapper/022:08:140
3081199552,20cyclictest0-21swapper/000:24:580
3081199550,26cyclictest8281-21seq22:59:160
3081199550,26cyclictest3471-21seq21:38:350
3081199550,25cyclictest3402-21seq20:29:360
3081199550,25cyclictest26403-21seq20:07:580
3081199550,25cyclictest12666-21seq21:58:260
134491550,2ptp4l0-21swapper/120:35:171
3081199543,21cyclictest0-21swapper/020:31:240
3081199542,22cyclictest0-21swapper/019:45:560
134491540,4ptp4l0-21swapper/222:51:062
134491540,4ptp4l0-21swapper/123:10:291
134491540,3ptp4l0-21swapper/219:24:092
134491540,3ptp4l0-21swapper/219:24:092
134491540,3ptp4l0-21swapper/123:46:011
134491540,3ptp4l0-21swapper/123:05:211
134491540,3ptp4l0-21swapper/121:32:231
3081199533,21cyclictest0-21swapper/023:37:340
3081199532,21cyclictest0-21swapper/021:09:050
3081199532,20cyclictest0-21swapper/022:47:240
3081199532,20cyclictest0-21swapper/019:44:080
3081199530,18cyclictest32307-21threads19:10:550
292162530,4sleep00-21swapper/021:25:000
134491530,5ptp4l0-21swapper/219:37:572
134491530,4ptp4l0-21swapper/123:53:561
134491530,4ptp4l0-21swapper/122:55:031
134491530,3ptp4l0-21swapper/119:54:511
134491530,3ptp4l0-21swapper/100:18:321
3081199522,20cyclictest0-21swapper/023:24:240
134491520,4ptp4l0-21swapper/122:40:491
134491520,4ptp4l0-21swapper/119:16:151
118902520,4sleep00-21swapper/023:05:210
134491510,4ptp4l0-21swapper/122:39:461
134491510,3ptp4l0-21swapper/121:49:041
134491500,5ptp4l0-21swapper/119:09:441
134491500,3ptp4l0-21swapper/323:45:163
134491500,3ptp4l0-21swapper/123:56:251
134491500,3ptp4l0-21swapper/123:34:551
134491500,3ptp4l0-21swapper/120:09:131
134491500,3ptp4l0-21swapper/022:50:280
3081199492,20cyclictest0-21swapper/020:56:290
134491490,4ptp4l0-21swapper/323:18:413
134491490,4ptp4l0-21swapper/121:05:491
134491490,4ptp4l0-21swapper/120:49:481
134491490,3ptp4l0-21swapper/321:52:493
134491490,3ptp4l0-21swapper/121:21:341
134491490,2ptp4l0-21swapper/119:48:571
134491490,1ptp4l0-21swapper/119:40:301
134491480,4ptp4l0-21swapper/120:11:431
134491480,3ptp4l0-21swapper/122:13:031
46198470,9rtkit-daemon0-21swapper/119:23:581
46198470,9rtkit-daemon0-21swapper/119:23:581
3081199472,20cyclictest0-21swapper/023:29:570
134491470,4ptp4l0-21swapper/220:05:162
134491470,3ptp4l0-21swapper/121:37:151
134491460,4ptp4l0-21swapper/119:28:131
134491460,4ptp4l0-21swapper/100:00:141
134491460,2ptp4l121rcu_preempt22:10:233
134491460,12ptp4l0-21swapper/322:50:233
134491450,5ptp4l0-21swapper/122:23:041
134491450,4ptp4l19638-21apt-get19:55:122
134491450,4ptp4l13213-21apt-get23:10:123
134491450,4ptp4l0-21swapper/323:04:433
134491450,4ptp4l0-21swapper/323:04:433
134491440,9ptp4l0-21swapper/221:12:592
134491440,4ptp4l3081499cyclictest00:21:183
134491440,4ptp4l24768-21apt-get23:35:113
134491440,4ptp4l0-21swapper/322:40:423
134491440,4ptp4l0-21swapper/320:10:233
134491440,4ptp4l0-21swapper/120:50:571
134491440,3ptp4l15658-21apt-get00:25:112
134491440,3ptp4l0-21swapper/322:15:283
134491440,3ptp4l0-21swapper/223:54:092
134491440,3ptp4l0-21swapper/121:57:481
134491440,3ptp4l0-21swapper/120:41:531
134491440,3ptp4l0-21swapper/120:15:381
134491440,10ptp4l0-21swapper/223:42:252
134491440,10ptp4l0-21swapper/121:50:271
46198430,4rtkit-daemon0-21swapper/121:27:281
46198430,4rtkit-daemon0-21swapper/121:27:281
134491430,9ptp4l0-21swapper/223:03:002
134491430,9ptp4l0-21swapper/223:03:002
134491430,9ptp4l0-21swapper/221:06:282
134491430,9ptp4l0-21swapper/220:49:322
134491430,9ptp4l0-21swapper/220:21:562
134491430,5ptp4l0-21swapper/319:06:023
134491430,5ptp4l0-21swapper/019:08:330
134491430,4ptp4l22677-21diskstats21:10:161
134491420,8ptp4l0-21swapper/222:12:352
134491420,5ptp4l0-21swapper/322:05:283
134491420,4ptp4l32559-21ntp_states20:20:231
134491420,4ptp4l20180-21apt-get23:25:112
134491420,4ptp4l13271-21df22:00:153
134491420,4ptp4l0-21swapper/221:15:072
134491420,4ptp4l0-21swapper/121:16:311
134491420,11ptp4l25-21ksoftirqd/123:42:361
134491410,5ptp4l0-21swapper/321:00:373
134491410,5ptp4l0-21swapper/300:05:153
134491410,5ptp4l0-21swapper/223:05:122
134491410,5ptp4l0-21swapper/222:00:252
134491410,5ptp4l0-21swapper/220:35:202
134491410,5ptp4l0-21swapper/022:00:160
134491410,5ptp4l0-21swapper/020:50:270
134491410,4ptp4l8279-21iostat19:30:191
134491410,4ptp4l2757-21ntp_states23:55:213
134491410,4ptp4l20811-21ntp_states19:55:231
134491410,4ptp4l0-21swapper/222:28:072
134491410,4ptp4l0-21swapper/222:15:282
134491410,4ptp4l0-21swapper/200:20:182
134491410,3ptp4l32063-21diskstats22:40:162
134491410,3ptp4l31641-21/usr/sbin/munin21:30:152
134491410,3ptp4l0-21swapper/200:19:572
134491400,5ptp4l0-21swapper/319:46:313
134491400,5ptp4l0-21swapper/223:32:212
134491400,5ptp4l0-21swapper/222:30:162
134491400,5ptp4l0-21swapper/100:05:191
134491400,4ptp4l5198-21python21:40:261
134491400,4ptp4l15493-21df_inode20:55:121
134491400,4ptp4l14314-21meminfo00:20:231
134491400,4ptp4l0-21swapper/322:20:233
134491400,4ptp4l0-21swapper/319:55:213
134491400,4ptp4l0-21swapper/222:05:182
134491400,4ptp4l0-21swapper/221:55:272
134491400,4ptp4l0-21swapper/221:48:072
134491400,4ptp4l0-21swapper/220:57:002
134491400,4ptp4l0-21swapper/219:40:192
134491400,4ptp4l0-21swapper/219:26:052
134491400,4ptp4l0-21swapper/200:02:232
134491400,4ptp4l0-21swapper/122:50:161
134491400,4ptp4l0-21swapper/023:15:260
134491400,3ptp4l8829-21ntp_states19:30:242
30814993934,3cyclictest41-21ksoftirqd/300:35:423
134491390,5ptp4l0-21swapper/322:57:473
134491390,5ptp4l0-21swapper/319:34:133
134491390,5ptp4l0-21swapper/319:25:393
134491390,5ptp4l0-21swapper/221:03:472
134491390,5ptp4l0-21swapper/219:06:172
134491390,5ptp4l0-21swapper/120:30:151
134491390,5ptp4l0-21swapper/120:04:101
134491390,4ptp4l7684-21grep00:05:312
134491390,4ptp4l18201-21fschecks_time23:20:173
134491390,4ptp4l16031-21irqrtprio22:05:191
134491390,4ptp4l0-21swapper/323:50:143
134491390,4ptp4l0-21swapper/323:31:003
134491390,4ptp4l0-21swapper/323:25:393
134491390,4ptp4l0-21swapper/323:05:153
134491390,4ptp4l0-21swapper/322:45:243
134491390,4ptp4l0-21swapper/322:35:303
134491390,4ptp4l0-21swapper/322:31:583
134491390,4ptp4l0-21swapper/320:27:393
134491390,4ptp4l0-21swapper/320:21:093
134491390,4ptp4l0-21swapper/320:05:173
134491390,4ptp4l0-21swapper/319:54:373
134491390,4ptp4l0-21swapper/319:44:513
134491390,4ptp4l0-21swapper/319:17:453
134491390,4ptp4l0-21swapper/319:10:293
134491390,4ptp4l0-21swapper/300:15:303
134491390,4ptp4l0-21swapper/300:00:593
134491390,4ptp4l0-21swapper/223:55:182
134491390,4ptp4l0-21swapper/223:16:582
134491390,4ptp4l0-21swapper/222:57:012
134491390,4ptp4l0-21swapper/222:45:292
134491390,4ptp4l0-21swapper/222:35:192
134491390,4ptp4l0-21swapper/221:54:462
134491390,4ptp4l0-21swapper/221:25:312
134491390,4ptp4l0-21swapper/221:25:302
134491390,4ptp4l0-21swapper/220:52:412
134491390,4ptp4l0-21swapper/220:30:442
134491390,4ptp4l0-21swapper/220:15:152
134491390,4ptp4l0-21swapper/220:13:092
134491390,4ptp4l0-21swapper/220:01:232
134491390,4ptp4l0-21swapper/219:50:392
134491390,4ptp4l0-21swapper/219:45:172
134491390,4ptp4l0-21swapper/219:15:312
134491390,4ptp4l0-21swapper/219:13:392
134491390,4ptp4l0-21swapper/123:37:241
134491390,4ptp4l0-21swapper/120:25:121
134491390,4ptp4l0-21swapper/119:35:211
134491390,4ptp4l0-21swapper/023:50:180
134491390,3ptp4l9054-21df_inode00:10:141
134491390,3ptp4l21298-21ntp_states23:25:231
134491390,3ptp4l17830-21apt-get23:20:122
134491390,3ptp4l0-21swapper/323:40:383
134491390,3ptp4l0-21swapper/100:37:561
3081399383,34cyclictest0-21swapper/220:42:392
134491380,5ptp4l0-21swapper/122:30:561
134491380,4ptp4l18682-21kernelversion23:20:211
134491380,4ptp4l0-21swapper/321:55:183
134491380,4ptp4l0-21swapper/321:41:023
134491380,4ptp4l0-21swapper/321:39:023
134491380,4ptp4l0-21swapper/321:30:053
134491380,4ptp4l0-21swapper/321:24:553
134491380,4ptp4l0-21swapper/321:19:213
134491380,4ptp4l0-21swapper/321:12:473
134491380,4ptp4l0-21swapper/320:56:213
134491380,4ptp4l0-21swapper/320:31:233
134491380,4ptp4l0-21swapper/320:03:593
134491380,4ptp4l0-21swapper/319:35:153
134491380,4ptp4l0-21swapper/223:35:262
134491380,4ptp4l0-21swapper/221:44:192
134491380,4ptp4l0-21swapper/221:36:502
134491380,4ptp4l0-21swapper/221:20:532
134491380,4ptp4l0-21swapper/220:25:072
134491380,4ptp4l0-21swapper/200:35:412
134491380,4ptp4l0-21swapper/123:15:211
134491380,4ptp4l0-21swapper/122:26:311
134491380,4ptp4l0-21swapper/122:17:441
134491380,4ptp4l0-21swapper/122:02:091
134491380,4ptp4l0-21swapper/100:25:191
134491380,3ptp4l0-21swapper/320:15:153
134491380,3ptp4l0-21swapper/319:20:393
134491380,3ptp4l0-21swapper/319:20:393
134491380,3ptp4l0-21swapper/222:20:252
134491380,3ptp4l0-21swapper/000:35:160
134491370,4ptp4l0-21swapper/321:29:473
134491370,4ptp4l0-21swapper/321:29:473
134491370,4ptp4l0-21swapper/320:53:073
134491370,4ptp4l0-21swapper/320:47:113
134491370,4ptp4l0-21swapper/320:43:363
134491370,4ptp4l0-21swapper/300:25:123
134491370,4ptp4l0-21swapper/200:30:112
134491370,4ptp4l0-21swapper/100:30:171
134491360,3ptp4l0-21swapper/321:05:293
134491350,3ptp4l0-21swapper/300:30:133
134491320,3ptp4l0-21swapper/320:37:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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