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2026-03-15 - 11:45
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Sun Mar 15, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158821540,2sleep2569699cyclictest21:20:122
134491690,10ptp4l241ktimersoftd/119:15:171
134491620,5ptp4l0-21swapper/023:30:210
134491620,3ptp4l31334-21apt-get23:35:043
134491590,3ptp4l25250-21iostat23:20:171
134491590,3ptp4l0-21swapper/119:10:271
134491580,5ptp4l0-21swapper/019:35:180
134491580,4ptp4l0-21swapper/222:35:032
134491570,5ptp4l0-21swapper/121:10:131
134491570,4ptp4l0-21swapper/121:31:231
134491570,3ptp4l30285-21meminfo22:20:181
134491570,3ptp4l0-21swapper/120:15:171
134491560,5ptp4l0-21swapper/100:35:151
134491560,4ptp4l0-21swapper/321:45:173
134491550,3ptp4l0-21swapper/219:40:202
134491550,3ptp4l0-21swapper/120:48:311
134491550,3ptp4l0-21swapper/120:10:201
134491540,4ptp4l0-21swapper/019:40:010
134491540,3ptp4l8835-21hddtemp_smartct20:25:171
134491540,12ptp4l0-21swapper/023:50:240
134491540,11ptp4l0-21swapper/121:00:131
134491530,3ptp4l0-21swapper/223:40:222
134491530,3ptp4l0-21swapper/122:48:111
134491530,3ptp4l0-21swapper/122:48:111
134491530,3ptp4l0-21swapper/121:47:511
134491520,5ptp4l0-21swapper/319:08:223
134491520,4ptp4l0-21swapper/222:30:022
134491520,4ptp4l0-21swapper/020:18:160
134491520,3ptp4l0-21swapper/122:30:241
134491510,4ptp4l0-21swapper/020:56:160
134491510,10ptp4l5027-21users19:05:260
134491500,4ptp4l0-21swapper/200:05:112
134491500,4ptp4l0-21swapper/123:41:511
134491500,4ptp4l0-21swapper/122:37:401
134491500,4ptp4l0-21swapper/121:40:111
134491500,4ptp4l0-21swapper/121:05:151
134491500,3ptp4l0-21swapper/123:05:181
134491500,11ptp4l3411-21/usr/sbin/munin19:05:111
282972490,6sleep30-21swapper/323:25:253
134491490,5ptp4l0-21swapper/219:08:422
134491490,4ptp4l0-21swapper/321:44:353
134491490,4ptp4l0-21swapper/200:10:072
134491490,4ptp4l0-21swapper/122:54:501
134491490,4ptp4l0-21swapper/122:44:211
134491490,4ptp4l0-21swapper/122:12:241
134491490,4ptp4l0-21swapper/121:52:231
134491490,4ptp4l0-21swapper/119:56:141
134491490,3ptp4l0-21swapper/223:34:442
134491490,3ptp4l0-21swapper/123:11:541
134491490,3ptp4l0-21swapper/121:24:261
5697994831,3cyclictest41-21ksoftirqd/300:20:153
134491480,4ptp4l0-21swapper/320:49:323
134491480,4ptp4l0-21swapper/021:31:080
134491480,3ptp4l0-21swapper/119:26:171
134491470,4ptp4l0-21swapper/220:29:222
134491470,4ptp4l0-21swapper/123:18:311
134491470,3ptp4l0-21swapper/120:59:011
134491470,3ptp4l0-21swapper/120:35:181
134491470,3ptp4l0-21swapper/120:35:181
134491470,3ptp4l0-21swapper/119:32:341
134491470,3ptp4l0-21swapper/119:22:201
134491470,3ptp4l0-21swapper/023:55:530
134491460,7ptp4l0-21swapper/023:15:020
134491460,4ptp4l0-21swapper/200:25:572
134491460,4ptp4l0-21swapper/120:51:351
134491460,4ptp4l0-21swapper/021:50:360
134491460,3ptp4l0-21swapper/120:00:341
134491460,3ptp4l0-21swapper/021:19:120
134491450,4ptp4l3780-21apt-get20:15:142
134491450,4ptp4l0-21swapper/321:53:193
134491450,4ptp4l0-21swapper/100:16:431
134491450,3ptp4l0-21swapper/120:22:341
134491450,2ptp4l5693-21cyclictest00:02:552
134491440,9ptp4l0-21swapper/022:44:060
134491440,9ptp4l0-21swapper/022:12:040
134491440,5ptp4l21736-21ntp_states00:20:230
134491440,4ptp4l101ktimersoftd/019:25:020
134491440,4ptp4l0-21swapper/121:15:351
134491440,4ptp4l0-21swapper/120:32:031
134491440,3ptp4l121rcu_preempt19:33:063
134491440,3ptp4l0-21swapper/123:48:471
134491440,3ptp4l0-21swapper/022:45:220
134491440,3ptp4l0-21swapper/022:45:220
134491440,3ptp4l0-21swapper/022:25:430
5696994338,3cyclictest33-21ksoftirqd/220:00:002
134491430,9ptp4l0-21swapper/222:43:202
134491430,9ptp4l0-21swapper/000:19:050
134491430,5ptp4l0-21swapper/022:05:260
134491430,5ptp4l0-21swapper/019:20:260
134491430,4ptp4l24687-21apt-get23:20:100
134491430,3ptp4l0-21swapper/122:55:141
134491430,3ptp4l0-21swapper/121:36:451
134491430,3ptp4l0-21swapper/120:42:461
134491430,3ptp4l0-21swapper/100:09:571
134491430,10ptp4l0-21swapper/023:05:210
134491420,9ptp4l0-21swapper/221:09:462
134491420,9ptp4l0-21swapper/220:22:502
134491420,9ptp4l0-21swapper/020:25:320
134491420,6ptp4l17963-21diskstats19:35:141
134491420,5ptp4l0-21swapper/022:00:140
134491420,4ptp4l6568-21irqstats19:10:190
134491420,4ptp4l4674-21ls21:25:210
134491420,4ptp4l27861-21meminfo19:55:180
134491420,4ptp4l24031-21ntp_states00:25:230
134491420,4ptp4l13276-21apt-get00:05:133
134491420,4ptp4l0-21swapper/219:48:102
134491420,4ptp4l0-21swapper/122:05:501
134491420,3ptp4l31791-21apt-get23:35:122
134491420,3ptp4l0-21swapper/122:29:431
134491410,8ptp4l0-21swapper/219:16:172
134491410,5ptp4l0-21swapper/022:50:210
134491410,4ptp4l4048-21/usr/sbin/munin23:45:290
134491410,4ptp4l30345-21ntp_states20:00:210
134491410,4ptp4l27020-21apt-get22:15:141
134491410,4ptp4l11931-21memory00:00:213
134491410,4ptp4l0-21swapper/321:37:593
134491410,4ptp4l0-21swapper/219:31:342
134491410,4ptp4l0-21swapper/121:25:131
134491410,4ptp4l0-21swapper/119:48:261
134491410,4ptp4l0-21swapper/022:32:590
134491410,3ptp4l8662-21apt-get23:55:113
134491410,3ptp4l2318-21gnome-shell00:09:580
134491410,3ptp4l11822-21ntp_states20:30:240
134491410,3ptp4l0-21swapper/023:40:270
5697994034,3cyclictest41-21ksoftirqd/323:40:123
134491400,8ptp4l0-21swapper/219:12:182
134491400,5ptp4l26503-21sshd22:11:433
134491400,5ptp4l0-21swapper/322:20:053
134491400,5ptp4l0-21swapper/319:50:133
134491400,5ptp4l0-21swapper/220:05:182
134491400,5ptp4l0-21swapper/200:15:232
134491400,5ptp4l0-21swapper/123:25:271
134491400,4ptp4l31832-21diskstats20:05:141
134491400,4ptp4l21696-21users19:40:271
134491400,4ptp4l21184-21iostat00:20:191
134491400,4ptp4l1037-21users23:35:291
134491400,4ptp4l0-21swapper/321:29:273
134491400,4ptp4l0-21swapper/321:12:593
134491400,4ptp4l0-21swapper/320:25:293
134491400,4ptp4l0-21swapper/300:30:513
134491400,4ptp4l0-21swapper/222:08:342
134491400,4ptp4l0-21swapper/221:39:582
134491400,4ptp4l0-21swapper/200:31:572
134491400,4ptp4l0-21swapper/123:01:291
134491400,4ptp4l0-21swapper/023:35:210
134491400,4ptp4l0-21swapper/022:57:590
134491400,4ptp4l0-21swapper/022:21:350
134491400,4ptp4l0-21swapper/021:55:250
134491400,4ptp4l0-21swapper/021:55:250
134491400,4ptp4l0-21swapper/021:41:330
134491400,4ptp4l0-21swapper/020:37:410
134491400,4ptp4l0-21swapper/020:37:410
134491400,4ptp4l0-21swapper/020:21:300
134491400,4ptp4l0-21swapper/020:05:210
134491400,3ptp4l7791-21apt-get19:15:030
134491400,3ptp4l6367-21apt-get23:50:111
134491400,3ptp4l29166-21apt-get21:10:120
134491400,3ptp4l28538-21users21:05:280
134491400,3ptp4l25555-21ls19:50:180
134491400,3ptp4l25416-21irqstats21:00:200
134491400,3ptp4l22750-21hddtemp_smartct19:45:160
5697993935,2cyclictest41-21ksoftirqd/323:49:593
5694993933,4cyclictest9-21ksoftirqd/020:40:130
134491390,5ptp4l0-21swapper/319:29:143
134491390,5ptp4l0-21swapper/219:35:072
134491390,4ptp4l9615-21memory23:55:201
134491390,4ptp4l18952-21/usr/sbin/munin20:45:240
134491390,4ptp4l0-21swapper/323:50:133
134491390,4ptp4l0-21swapper/323:12:393
134491390,4ptp4l0-21swapper/323:01:343
134491390,4ptp4l0-21swapper/322:36:063
134491390,4ptp4l0-21swapper/322:32:223
134491390,4ptp4l0-21swapper/321:33:283
134491390,4ptp4l0-21swapper/321:09:473
134491390,4ptp4l0-21swapper/319:40:183
134491390,4ptp4l0-21swapper/300:25:143
134491390,4ptp4l0-21swapper/300:10:163
134491390,4ptp4l0-21swapper/223:58:582
134491390,4ptp4l0-21swapper/223:50:282
134491390,4ptp4l0-21swapper/223:05:092
134491390,4ptp4l0-21swapper/223:00:232
134491390,4ptp4l0-21swapper/222:26:412
134491390,4ptp4l0-21swapper/221:43:072
134491390,4ptp4l0-21swapper/221:32:562
134491390,4ptp4l0-21swapper/221:26:482
134491390,4ptp4l0-21swapper/221:11:252
134491390,4ptp4l0-21swapper/221:03:312
134491390,4ptp4l0-21swapper/220:55:082
134491390,4ptp4l0-21swapper/220:54:002
134491390,4ptp4l0-21swapper/220:40:042
134491390,4ptp4l0-21swapper/220:33:382
134491390,4ptp4l0-21swapper/220:01:152
134491390,4ptp4l0-21swapper/219:53:462
134491390,4ptp4l0-21swapper/200:36:372
134491390,4ptp4l0-21swapper/119:50:511
134491390,4ptp4l0-21swapper/023:10:130
134491390,4ptp4l0-21swapper/022:15:420
134491390,4ptp4l0-21swapper/021:45:160
134491390,4ptp4l0-21swapper/021:39:530
134491390,4ptp4l0-21swapper/021:20:110
134491390,4ptp4l0-21swapper/000:35:170
134491390,4ptp4l0-21swapper/000:34:310
134491390,4ptp4l0-21swapper/000:10:090
134491390,3ptp4l4454-21iostat22:35:180
134491390,3ptp4l2600-21ntp_states20:10:220
134491390,3ptp4l21081-21ntp_states20:50:220
134491390,3ptp4l20699-21iostat_ios22:00:181
134491390,3ptp4l18705-21meminfo21:55:211
134491390,3ptp4l18705-21meminfo21:55:211
134491390,3ptp4l0-21swapper/223:16:132
134491390,3ptp4l0-21swapper/000:02:450
5697993832,3cyclictest41-21ksoftirqd/322:00:003
5697993832,3cyclictest41-21ksoftirqd/322:00:003
5696993833,3cyclictest33-21ksoftirqd/222:12:272
134491380,4ptp4l0-21swapper/323:31:083
134491380,4ptp4l0-21swapper/323:19:363
134491380,4ptp4l0-21swapper/323:05:083
134491380,4ptp4l0-21swapper/322:53:043
134491380,4ptp4l0-21swapper/322:49:463
134491380,4ptp4l0-21swapper/322:49:463
134491380,4ptp4l0-21swapper/322:40:093
134491380,4ptp4l0-21swapper/322:16:143
134491380,4ptp4l0-21swapper/322:06:023
134491380,4ptp4l0-21swapper/322:01:113
134491380,4ptp4l0-21swapper/321:23:293
134491380,4ptp4l0-21swapper/320:51:573
134491380,4ptp4l0-21swapper/320:10:533
134491380,4ptp4l0-21swapper/320:05:203
134491380,4ptp4l0-21swapper/319:15:183
134491380,4ptp4l0-21swapper/223:26:042
134491380,4ptp4l0-21swapper/223:21:522
134491380,4ptp4l0-21swapper/222:58:092
134491380,4ptp4l0-21swapper/222:51:052
134491380,4ptp4l0-21swapper/222:45:282
134491380,4ptp4l0-21swapper/222:45:282
134491380,4ptp4l0-21swapper/222:21:432
134491380,4ptp4l0-21swapper/222:04:212
134491380,4ptp4l0-21swapper/221:55:482
134491380,4ptp4l0-21swapper/221:55:482
134491380,4ptp4l0-21swapper/221:50:082
134491380,4ptp4l0-21swapper/221:46:242
134491380,4ptp4l0-21swapper/221:18:082
134491380,4ptp4l0-21swapper/220:45:522
134491380,4ptp4l0-21swapper/220:36:322
134491380,4ptp4l0-21swapper/220:36:322
134491380,4ptp4l0-21swapper/219:27:142
134491380,4ptp4l0-21swapper/219:24:382
134491380,4ptp4l0-21swapper/200:20:112
134491380,4ptp4l0-21swapper/123:31:241
134491380,3ptp4l21846-21sshd23:11:382
134491380,3ptp4l0-21swapper/323:22:233
134491380,3ptp4l0-21swapper/319:56:483
134491380,3ptp4l0-21swapper/023:00:070
134491370,4ptp4l0-21swapper/322:26:403
134491370,4ptp4l0-21swapper/321:02:483
134491370,4ptp4l0-21swapper/320:15:153
134491370,4ptp4l0-21swapper/319:45:423
134491370,4ptp4l0-21swapper/319:39:383
134491370,4ptp4l0-21swapper/319:20:233
134491370,4ptp4l0-21swapper/223:45:352
134491370,4ptp4l0-21swapper/222:17:062
134491370,4ptp4l0-21swapper/019:31:170
134491370,3ptp4l0-21swapper/321:20:013
134491370,3ptp4l0-21swapper/320:55:133
134491370,3ptp4l0-21swapper/320:20:143
134491370,3ptp4l0-21swapper/319:10:003
134491370,3ptp4l0-21swapper/300:15:273
134491370,3ptp4l0-21swapper/220:10:522
134491370,3ptp4l0-21swapper/100:30:431
134491370,3ptp4l0-21swapper/100:25:261
134491370,3ptp4l0-21swapper/100:10:141
134491370,3ptp4l0-21swapper/100:00:301
134491370,3ptp4l0-21swapper/023:28:060
134491360,4ptp4l0-21swapper/320:43:233
134491360,4ptp4l0-21swapper/320:03:483
134491360,3ptp4l0-21swapper/322:58:093
134491360,3ptp4l0-21swapper/320:30:093
134491360,3ptp4l0-21swapper/300:37:303
134491350,4ptp4l0-21swapper/320:38:013
134491350,4ptp4l0-21swapper/320:38:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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