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2026-03-16 - 07:07
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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 Mon Mar 16, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491770,17ptp4l2318-21gnome-shell19:05:581
108012750,5sleep20-21swapper/220:30:192
134491680,33ptp4l25-21ksoftirqd/120:45:261
56702650,5sleep35671-21df_abs21:30:133
134491620,21ptp4l24368-21df_inode22:10:151
149292610,5sleep00-21swapper/019:30:160
134491600,4ptp4l0-21swapper/220:15:162
134491600,4ptp4l0-21swapper/220:15:152
134491600,3ptp4l0-21swapper/021:44:210
134491580,4ptp4l0-21swapper/021:15:170
134491570,5ptp4l0-21swapper/119:10:171
134491570,4ptp4l0-21swapper/321:36:113
134491570,4ptp4l0-21swapper/300:39:563
134491570,3ptp4l19684-21apt-key23:10:001
134491570,3ptp4l0-21swapper/023:35:260
134491570,3ptp4l0-21swapper/023:10:250
134491560,4ptp4l0-21swapper/122:29:021
134491560,4ptp4l0-21swapper/121:44:101
134491560,4ptp4l0-21swapper/119:57:041
134491560,4ptp4l0-21swapper/021:49:300
134491560,3ptp4l0-21swapper/123:37:081
134491560,3ptp4l0-21swapper/122:22:521
134491550,4ptp4l0-21swapper/320:37:393
134491550,4ptp4l0-21swapper/123:25:361
134491550,4ptp4l0-21swapper/121:29:461
134491550,4ptp4l0-21swapper/100:24:221
134491550,3ptp4l0-21swapper/119:52:531
134491550,3ptp4l0-21swapper/119:16:581
274072540,3sleep127410-21needreboot22:15:221
134491540,4ptp4l0-21swapper/123:41:431
134491540,4ptp4l0-21swapper/122:02:181
134491540,3ptp4l0-21swapper/300:32:063
134491540,3ptp4l0-21swapper/120:33:431
134491530,4ptp4l0-21swapper/323:59:023
134491530,4ptp4l0-21swapper/122:09:441
134491530,4ptp4l0-21swapper/121:58:231
134491530,3ptp4l0-21swapper/122:30:221
134491530,3ptp4l0-21swapper/120:54:591
134491530,3ptp4l0-21swapper/120:20:131
134491530,3ptp4l0-21swapper/100:32:381
134491520,5ptp4l0-21swapper/019:05:240
134491520,4ptp4l0-21swapper/123:07:191
134491520,4ptp4l0-21swapper/120:44:101
134491520,4ptp4l0-21swapper/119:44:181
134491520,3ptp4l0-21swapper/100:25:001
134491520,21ptp4l25-21ksoftirqd/121:00:091
524799513,20cyclictest0-21swapper/000:39:200
524799510,3cyclictest134491ptp4l20:35:270
134491500,2ptp4l25453-21iostat_ios23:20:181
524999491,4cyclictest316-21taskset22:26:572
134491490,5ptp4l0-21swapper/323:25:143
134491490,3ptp4l0-21swapper/120:15:141
134491490,3ptp4l0-21swapper/120:15:141
134491480,4ptp4l0-21swapper/120:01:031
134491470,4ptp4l0-21swapper/323:46:553
134491470,4ptp4l0-21swapper/320:57:273
134491470,4ptp4l0-21swapper/119:30:471
524799462,20cyclictest0-21swapper/020:45:000
134491460,4ptp4l0-21swapper/122:56:161
134491460,3ptp4l0-21swapper/223:14:592
134491460,3ptp4l0-21swapper/121:05:231
134491460,11ptp4l30578-21sort21:15:000
134491450,9ptp4l26849-21if_enp1s022:15:160
134491450,4ptp4l0-21swapper/123:02:001
134491450,4ptp4l0-21swapper/121:31:011
134491450,11ptp4l0-21swapper/221:37:232
5249994410,26cyclictest1317-21runrttasks19:12:332
134491440,5ptp4l0-21swapper/122:43:311
134491440,5ptp4l0-21swapper/122:35:101
134491440,4ptp4l11379-21apt-get00:00:143
134491440,4ptp4l0-21swapper/123:55:021
134491440,4ptp4l0-21swapper/121:22:581
134491440,4ptp4l0-21swapper/120:36:151
134491440,4ptp4l0-21swapper/120:27:001
134491440,4ptp4l0-21swapper/100:06:501
134491440,3ptp4l0-21swapper/119:21:261
524999433,38cyclictest0-21swapper/219:55:282
134491430,4ptp4l27485-21diskstats23:25:150
134491430,4ptp4l24065-21apt-get22:10:122
134491430,4ptp4l1571-21irqstats21:20:180
134491430,4ptp4l14978-21apt-get23:00:130
134491430,4ptp4l0-21swapper/123:45:411
134491430,2ptp4l121rcu_preempt22:45:530
134491430,10ptp4l0-21swapper/200:29:482
134491420,8ptp4l0-21swapper/219:51:162
134491420,5ptp4l5813-21hddtemp_smartct21:30:160
134491420,5ptp4l28119-21apt-get20:00:023
134491420,5ptp4l12996-21/usr/sbin/munin00:00:301
134491420,5ptp4l0-21swapper/223:45:272
134491420,5ptp4l0-21swapper/021:50:270
134491420,4ptp4l7753-21apt-get20:25:130
134491420,4ptp4l5555-21apt-get22:40:110
134491420,4ptp4l4101-21ls21:25:203
134491420,4ptp4l31235-21hddtemp_smartct21:15:141
134491420,4ptp4l22559-21df23:15:140
134491420,4ptp4l21769-21apt-get22:05:110
134491420,4ptp4l18522-21apt-get00:15:130
134491420,4ptp4l17176-21memory00:10:191
134491420,4ptp4l1058-21diskstats20:10:161
134491420,4ptp4l0-21swapper/120:59:001
134491420,4ptp4l0-21swapper/119:36:221
134491420,4ptp4l0-21swapper/022:50:210
134491420,4ptp4l0-21swapper/020:30:370
134491420,3ptp4l29150-21iostat_ios20:00:190
134491420,3ptp4l21458-21apt-get19:45:110
134491420,3ptp4l20836-21apt-get00:20:120
134491420,3ptp4l19641-21ntp_states00:15:233
5250994135,3cyclictest41-21ksoftirqd/321:55:003
5250994130,9cyclictest41-21ksoftirqd/320:15:163
5250994130,9cyclictest41-21ksoftirqd/320:15:153
134491410,5ptp4l0-21swapper/221:51:052
134491410,5ptp4l0-21swapper/023:40:160
134491410,5ptp4l0-21swapper/022:30:130
134491410,5ptp4l0-21swapper/022:10:150
134491410,5ptp4l0-21swapper/021:35:230
134491410,5ptp4l0-21swapper/020:40:120
134491410,5ptp4l0-21swapper/019:15:160
134491410,5ptp4l0-21swapper/000:30:150
134491410,4ptp4l4033-21meminfo21:25:202
134491410,4ptp4l31091-21/usr/sbin/munin20:05:141
134491410,4ptp4l29468-21apt23:30:110
134491410,4ptp4l12499-21df_inode19:25:150
134491410,4ptp4l10896-21apt-get00:00:040
134491410,4ptp4l0-21swapper/323:30:223
134491410,4ptp4l0-21swapper/220:51:152
134491410,4ptp4l0-21swapper/219:34:272
134491410,4ptp4l0-21swapper/123:50:581
134491410,4ptp4l0-21swapper/119:25:121
134491410,3ptp4l8384-21apt-get23:55:030
134491410,3ptp4l8273-21perl22:45:131
134491410,3ptp4l4036-21apt-get23:45:120
134491410,3ptp4l3084-21apt-get21:25:120
134491410,3ptp4l24405-21apt-get23:20:030
134491410,3ptp4l19313-21apt-get20:50:120
134491410,3ptp4l14096-21perl00:05:150
524999401,36cyclictest16725-1kworker/2:2H23:10:012
134491400,5ptp4l0-21swapper/200:13:472
134491400,5ptp4l0-21swapper/023:50:190
134491400,5ptp4l0-21swapper/022:55:230
134491400,5ptp4l0-21swapper/022:20:180
134491400,4ptp4l6122-21iostat22:40:173
134491400,4ptp4l525099cyclictest22:06:563
134491400,4ptp4l4175-21meminfo22:35:170
134491400,4ptp4l31961-21awk20:05:210
134491400,4ptp4l18626-21vmstat21:55:313
134491400,4ptp4l18279-21/usr/sbin/munin19:35:260
134491400,4ptp4l12574-21sed21:45:132
134491400,4ptp4l0-21swapper/323:20:003
134491400,4ptp4l0-21swapper/322:38:523
134491400,4ptp4l0-21swapper/322:10:123
134491400,4ptp4l0-21swapper/321:45:283
134491400,4ptp4l0-21swapper/321:06:563
134491400,4ptp4l0-21swapper/320:20:283
134491400,4ptp4l0-21swapper/320:12:263
134491400,4ptp4l0-21swapper/320:08:583
134491400,4ptp4l0-21swapper/319:58:303
134491400,4ptp4l0-21swapper/319:50:203
134491400,4ptp4l0-21swapper/319:10:013
134491400,4ptp4l0-21swapper/300:25:253
134491400,4ptp4l0-21swapper/300:10:523
134491400,4ptp4l0-21swapper/223:42:432
134491400,4ptp4l0-21swapper/223:34:402
134491400,4ptp4l0-21swapper/223:24:432
134491400,4ptp4l0-21swapper/223:15:432
134491400,4ptp4l0-21swapper/222:58:522
134491400,4ptp4l0-21swapper/222:37:392
134491400,4ptp4l0-21swapper/221:57:212
134491400,4ptp4l0-21swapper/221:40:022
134491400,4ptp4l0-21swapper/220:57:202
134491400,4ptp4l0-21swapper/220:48:312
134491400,4ptp4l0-21swapper/220:14:272
134491400,4ptp4l0-21swapper/219:43:182
134491400,4ptp4l0-21swapper/219:25:242
134491400,4ptp4l0-21swapper/200:24:122
134491400,4ptp4l0-21swapper/200:06:212
134491400,4ptp4l0-21swapper/123:30:271
134491400,4ptp4l0-21swapper/123:15:141
134491400,4ptp4l0-21swapper/121:51:441
134491400,4ptp4l0-21swapper/121:35:111
134491400,4ptp4l0-21swapper/022:00:120
134491400,4ptp4l0-21swapper/021:05:130
134491400,4ptp4l0-21swapper/021:00:110
134491400,4ptp4l0-21swapper/019:50:240
134491400,4ptp4l0-21swapper/019:20:180
134491400,4ptp4l0-21swapper/019:10:120
134491400,3ptp4l29769-21ps21:10:231
134491400,3ptp4l18049-21/usr/sbin/munin21:55:240
134491400,3ptp4l17766-21hddtemp_smartct23:05:180
134491400,2ptp4l23022-21ls20:55:240
5250993934,3cyclictest41-21ksoftirqd/323:05:193
5250993934,3cyclictest41-21ksoftirqd/321:20:173
524999393,34cyclictest0-21swapper/221:21:452
524999392,5cyclictest30877-21apt-get20:05:112
134491390,5ptp4l0-21swapper/321:10:113
134491390,4ptp4l11544-21phc2sys-jitter22:50:241
134491390,4ptp4l0-21swapper/323:35:423
134491390,4ptp4l0-21swapper/323:15:363
134491390,4ptp4l0-21swapper/323:14:483
134491390,4ptp4l0-21swapper/322:27:403
134491390,4ptp4l0-21swapper/322:23:523
134491390,4ptp4l0-21swapper/322:19:183
134491390,4ptp4l0-21swapper/322:04:093
134491390,4ptp4l0-21swapper/321:00:473
134491390,4ptp4l0-21swapper/320:44:153
134491390,4ptp4l0-21swapper/320:31:403
134491390,4ptp4l0-21swapper/320:25:593
134491390,4ptp4l0-21swapper/319:44:563
134491390,4ptp4l0-21swapper/319:38:493
134491390,4ptp4l0-21swapper/319:27:343
134491390,4ptp4l0-21swapper/319:18:243
134491390,4ptp4l0-21swapper/300:22:023
134491390,4ptp4l0-21swapper/300:05:423
134491390,4ptp4l0-21swapper/223:59:022
134491390,4ptp4l0-21swapper/223:03:442
134491390,4ptp4l0-21swapper/222:53:042
134491390,4ptp4l0-21swapper/222:43:262
134491390,4ptp4l0-21swapper/222:22:082
134491390,4ptp4l0-21swapper/222:16:442
134491390,4ptp4l0-21swapper/222:05:212
134491390,4ptp4l0-21swapper/222:01:122
134491390,4ptp4l0-21swapper/221:31:122
134491390,4ptp4l0-21swapper/221:17:282
134491390,4ptp4l0-21swapper/221:03:422
134491390,4ptp4l0-21swapper/220:42:312
134491390,4ptp4l0-21swapper/220:38:032
134491390,4ptp4l0-21swapper/220:03:282
134491390,4ptp4l0-21swapper/219:49:432
134491390,4ptp4l0-21swapper/219:21:452
134491390,4ptp4l0-21swapper/219:18:472
134491390,4ptp4l0-21swapper/200:30:402
134491390,4ptp4l0-21swapper/200:01:262
134491390,4ptp4l0-21swapper/121:46:251
134491390,4ptp4l0-21swapper/119:45:071
134491390,4ptp4l0-21swapper/100:35:261
134491390,4ptp4l0-21swapper/100:15:191
134491390,4ptp4l0-21swapper/020:20:170
134491390,4ptp4l0-21swapper/020:15:260
134491390,4ptp4l0-21swapper/020:15:260
134491390,4ptp4l0-21swapper/020:10:270
134491390,4ptp4l0-21swapper/019:55:120
134491390,4ptp4l0-21swapper/019:40:390
134491390,4ptp4l0-21swapper/000:10:120
134491390,3ptp4l28726-21df21:10:142
134491390,3ptp4l0-21swapper/322:56:013
134491390,3ptp4l0-21swapper/320:48:573
134491390,3ptp4l0-21swapper/221:07:552
134491390,2ptp4l28676-21ls23:25:272
5250993833,3cyclictest41-21ksoftirqd/319:20:263
524999384,32cyclictest0-21swapper/200:15:532
134491380,4ptp4l0-21swapper/323:55:003
134491380,4ptp4l0-21swapper/322:49:033
134491380,4ptp4l0-21swapper/322:30:163
134491380,4ptp4l0-21swapper/321:41:393
134491380,4ptp4l0-21swapper/321:18:133
134491380,4ptp4l0-21swapper/320:51:263
134491380,4ptp4l0-21swapper/319:34:363
134491380,4ptp4l0-21swapper/220:25:012
134491380,4ptp4l0-21swapper/000:25:090
134491380,3ptp4l33-21ksoftirqd/223:35:422
134491380,3ptp4l0-21swapper/323:40:263
134491380,3ptp4l0-21swapper/323:02:273
134491380,3ptp4l0-21swapper/222:30:162
134491380,3ptp4l0-21swapper/220:20:362
134491380,3ptp4l0-21swapper/022:25:220
5250993732,3cyclictest41-21ksoftirqd/319:45:183
134491370,4ptp4l0-21swapper/223:51:332
134491370,4ptp4l0-21swapper/200:36:132
134491370,3ptp4l33-21ksoftirqd/219:38:592
134491370,3ptp4l0-21swapper/322:53:063
524999364,31cyclictest0-21swapper/222:45:522
46198340,5rtkit-daemon0-21swapper/319:06:543
28972224,9sleep22912-21apt-get19:05:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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