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2026-06-15 - 10:13
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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 Mon Jun 15, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2661821580,3sleep1173899cyclictest23:30:171
2675321440,3sleep2173999cyclictest21:10:212
267321400,3sleep1173899cyclictest20:20:141
2452721340,3sleep3174099cyclictest22:15:213
173799613,15cyclictest0-21swapper/021:20:270
134491610,4ptp4l0-21swapper/219:39:382
134491600,4ptp4l0-21swapper/219:50:052
134491590,9ptp4l0-21swapper/223:30:582
134491590,4ptp4l0-21swapper/220:15:252
134491590,3ptp4l0-21swapper/021:50:260
134491590,3ptp4l0-21swapper/021:50:260
134491580,4ptp4l0-21swapper/223:59:552
134491580,4ptp4l0-21swapper/223:59:552
134491580,4ptp4l0-21swapper/221:51:422
134491580,4ptp4l0-21swapper/221:51:422
134491580,4ptp4l0-21swapper/221:33:542
134491580,4ptp4l0-21swapper/219:21:572
134491580,4ptp4l0-21swapper/122:30:221
134491580,4ptp4l0-21swapper/121:56:581
134491580,3ptp4l0-21swapper/020:45:270
134491570,4ptp4l0-21swapper/300:31:243
134491570,4ptp4l0-21swapper/300:31:243
134491570,4ptp4l0-21swapper/223:26:462
134491570,4ptp4l0-21swapper/223:26:462
134491570,4ptp4l0-21swapper/219:28:572
134491570,4ptp4l0-21swapper/022:53:460
134491570,3ptp4l0-21swapper/320:40:273
134491560,4ptp4l0-21swapper/221:49:102
134491560,4ptp4l0-21swapper/122:01:071
134491560,4ptp4l0-21swapper/000:18:430
134491560,3ptp4l0-21swapper/100:35:171
134491560,2ptp4l1736-21cyclictest22:45:372
134491550,4ptp4l0-21swapper/222:41:262
134491550,4ptp4l0-21swapper/200:28:452
134491550,4ptp4l0-21swapper/122:19:431
134491550,3ptp4l0-21swapper/222:55:282
134491550,3ptp4l0-21swapper/121:50:281
134491550,3ptp4l0-21swapper/121:50:281
134491540,4ptp4l0-21swapper/321:49:133
134491540,4ptp4l0-21swapper/221:38:182
134491540,4ptp4l0-21swapper/200:34:132
134491540,4ptp4l0-21swapper/200:34:132
134491540,3ptp4l0-21swapper/219:30:202
134491540,3ptp4l0-21swapper/023:56:330
134491540,3ptp4l0-21swapper/023:56:330
134491540,3ptp4l0-21swapper/000:32:310
134491540,3ptp4l0-21swapper/000:32:310
173799530,4cyclictest134491ptp4l21:05:150
134491530,4ptp4l0-21swapper/219:17:512
134491530,4ptp4l0-21swapper/200:12:252
134491530,4ptp4l0-21swapper/123:11:521
134491530,4ptp4l0-21swapper/121:29:521
134491530,4ptp4l0-21swapper/120:50:481
134491530,3ptp4l0-21swapper/023:12:250
134491530,3ptp4l0-21swapper/021:58:540
134491520,4ptp4l0-21swapper/119:23:081
134491520,3ptp4l0-21swapper/319:27:293
134491520,3ptp4l0-21swapper/122:39:511
134491520,11ptp4l32741-21/usr/sbin/munin19:05:180
174099513,4cyclictest41-21ksoftirqd/323:10:003
134491510,4ptp4l0-21swapper/221:19:142
134491510,4ptp4l0-21swapper/221:05:332
134491510,4ptp4l0-21swapper/220:28:462
134491510,4ptp4l0-21swapper/220:03:242
134491510,4ptp4l0-21swapper/121:39:011
134491510,4ptp4l0-21swapper/119:31:001
134491510,3ptp4l0-21swapper/220:08:502
134491510,3ptp4l0-21swapper/120:45:211
134491500,4ptp4l0-21swapper/222:31:352
134491500,4ptp4l0-21swapper/123:52:001
134491500,4ptp4l0-21swapper/100:01:211
134491500,3ptp4l0-21swapper/119:44:361
134491500,3ptp4l0-21swapper/100:10:231
134491500,3ptp4l0-21swapper/023:07:120
1737994927,20cyclictest9-21ksoftirqd/021:00:110
134491490,8ptp4l0-21swapper/223:12:072
1739994842,4cyclictest21132-21dump-pmu-power23:20:012
134491470,4ptp4l33-21ksoftirqd/200:15:162
134491470,4ptp4l0-21swapper/119:49:061
134491470,3ptp4l0-21swapper/122:52:461
134491470,3ptp4l0-21swapper/122:26:221
134491460,4ptp4l0-21swapper/000:14:180
134491460,3ptp4l0-21swapper/320:18:073
134491460,3ptp4l0-21swapper/121:20:421
134491460,3ptp4l0-21swapper/119:11:001
134491460,3ptp4l0-21swapper/100:28:511
134491460,2ptp4l0-21swapper/120:37:111
134491460,11ptp4l0-21swapper/222:37:282
174099450,2cyclictest121rcu_preempt19:40:213
174099450,2cyclictest121rcu_preempt00:05:293
134491450,9ptp4l0-21swapper/222:21:282
134491450,4ptp4l173899cyclictest20:01:311
134491450,4ptp4l0-21swapper/119:39:071
134491450,3ptp4l0-21swapper/223:20:142
134491450,3ptp4l0-21swapper/123:39:261
134491450,3ptp4l0-21swapper/122:40:071
134491450,3ptp4l0-21swapper/122:21:461
134491450,3ptp4l0-21swapper/019:40:550
1740994433,9cyclictest41-21ksoftirqd/319:30:253
1737994422,19cyclictest9-21ksoftirqd/023:25:110
1737994422,19cyclictest9-21ksoftirqd/023:25:110
134491440,8ptp4l0-21swapper/221:21:052
134491440,7ptp4l0-21swapper/119:05:261
134491440,4ptp4l0-21swapper/220:11:362
134491440,4ptp4l0-21swapper/123:44:191
134491440,4ptp4l0-21swapper/121:16:231
134491440,4ptp4l0-21swapper/000:22:490
134491440,3ptp4l0-21swapper/121:03:591
134491440,3ptp4l0-21swapper/021:17:440
134491440,3ptp4l0-21swapper/020:07:520
1740994338,3cyclictest41-21ksoftirqd/322:10:003
134491430,9ptp4l0-21swapper/223:39:392
134491430,9ptp4l0-21swapper/220:53:122
134491430,9ptp4l0-21swapper/219:49:032
134491430,9ptp4l0-21swapper/200:20:452
134491430,8ptp4l0-21swapper/219:57:252
134491430,4ptp4l959-21hddtemp_smartct23:45:171
134491430,4ptp4l1769-21apt-get19:10:110
134491430,4ptp4l0-21swapper/223:51:442
134491430,4ptp4l0-21swapper/122:56:501
134491430,4ptp4l0-21swapper/020:23:040
134491430,3ptp4l0-21swapper/200:04:192
134491430,3ptp4l0-21swapper/023:40:480
134491430,3ptp4l0-21swapper/020:13:220
134491430,3ptp4l0-21swapper/019:45:310
134491430,3ptp4l0-21swapper/000:02:570
1740994239,2cyclictest41-21ksoftirqd/323:25:003
1740994237,2cyclictest41-21ksoftirqd/321:40:003
1740994235,4cyclictest4809-21cron22:44:593
1740994231,9cyclictest41-21ksoftirqd/321:00:283
134491420,9ptp4l0-21swapper/221:41:432
134491420,9ptp4l0-21swapper/219:10:092
134491420,8ptp4l0-21swapper/222:50:102
134491420,4ptp4l9869-21apt-get22:55:120
134491420,4ptp4l0-21swapper/321:09:433
134491420,4ptp4l0-21swapper/121:13:431
134491420,4ptp4l0-21swapper/021:35:280
134491420,3ptp4l0-21swapper/023:54:310
134491420,3ptp4l0-21swapper/020:16:320
1740994136,3cyclictest41-21ksoftirqd/321:20:013
1740994136,3cyclictest41-21ksoftirqd/319:50:183
1740994136,3cyclictest41-21ksoftirqd/319:45:183
174099411,2cyclictest121rcu_preempt23:15:223
134491410,9ptp4l0-21swapper/220:42:172
134491410,9ptp4l0-21swapper/220:32:372
134491410,8ptp4l0-21swapper/223:42:292
134491410,8ptp4l0-21swapper/222:27:082
134491410,5ptp4l9166-21hddtemp_smartct19:25:141
134491410,5ptp4l0-21swapper/120:10:111
134491410,5ptp4l0-21swapper/100:20:141
134491410,5ptp4l0-21swapper/022:10:280
134491410,4ptp4l506-21apt-get23:45:130
134491410,4ptp4l4966-21irqstats19:15:180
134491410,4ptp4l30487-21apt-get22:30:130
134491410,4ptp4l26985-21meminfo23:30:190
134491410,4ptp4l18138-21users20:50:290
134491410,4ptp4l0-21swapper/122:45:481
134491410,4ptp4l0-21swapper/120:56:111
134491410,4ptp4l0-21swapper/019:55:590
134491410,3ptp4l7052-21apt-get20:30:130
134491410,3ptp4l41-21ksoftirqd/321:58:073
1740994035,3cyclictest41-21ksoftirqd/323:50:003
1740994035,3cyclictest41-21ksoftirqd/322:30:003
1740994035,3cyclictest41-21ksoftirqd/321:10:193
1740994035,3cyclictest41-21ksoftirqd/320:30:283
173799401,6cyclictest11603-21iostat19:30:180
134491400,5ptp4l21440-21/usr/sbin/munin23:20:120
134491400,5ptp4l0-21swapper/123:00:111
134491400,5ptp4l0-21swapper/020:00:150
134491400,4ptp4l8001-21meminfo20:30:211
134491400,4ptp4l6158-21meminfo23:55:211
134491400,4ptp4l6158-21meminfo23:55:211
134491400,4ptp4l4330-21df19:15:141
134491400,4ptp4l3026-21df21:30:130
134491400,4ptp4l24379-21meminfo21:05:211
134491400,4ptp4l21830-21diskstats00:30:141
134491400,4ptp4l21830-21diskstats00:30:141
134491400,4ptp4l11300-21ssh22:55:263
134491400,4ptp4l0-21swapper/321:50:073
134491400,4ptp4l0-21swapper/321:50:073
134491400,4ptp4l0-21swapper/222:17:002
134491400,4ptp4l0-21swapper/221:55:082
134491400,4ptp4l0-21swapper/221:03:002
134491400,4ptp4l0-21swapper/220:47:072
134491400,4ptp4l0-21swapper/122:11:541
134491400,4ptp4l0-21swapper/121:31:321
134491400,4ptp4l0-21swapper/120:15:291
134491400,4ptp4l0-21swapper/119:52:351
134491400,4ptp4l0-21swapper/100:15:151
134491400,4ptp4l0-21swapper/023:00:590
134491400,4ptp4l0-21swapper/022:48:000
134491400,4ptp4l0-21swapper/022:35:130
134491400,4ptp4l0-21swapper/022:17:390
134491400,4ptp4l0-21swapper/022:00:130
134491400,3ptp4l6440-21apt-get19:20:110
134491400,3ptp4l13545-21df19:35:140
134491400,3ptp4l0-21swapper/119:58:521
1740993935,3cyclictest41-21ksoftirqd/323:05:003
1740993934,2cyclictest41-21ksoftirqd/322:05:003
1740993933,3cyclictest41-21ksoftirqd/320:10:173
1740993927,9cyclictest41-21ksoftirqd/300:15:153
134491390,7ptp4l25-21ksoftirqd/123:29:381
134491390,7ptp4l25-21ksoftirqd/123:29:381
134491390,5ptp4l0-21swapper/021:45:220
134491390,4ptp4l27520-21awk22:20:270
134491390,4ptp4l1805-21python21:25:262
134491390,4ptp4l0-21swapper/323:35:143
134491390,4ptp4l0-21swapper/322:51:143
134491390,4ptp4l0-21swapper/322:46:303
134491390,4ptp4l0-21swapper/321:34:253
134491390,4ptp4l0-21swapper/321:25:263
134491390,4ptp4l0-21swapper/321:21:363
134491390,4ptp4l0-21swapper/320:55:243
134491390,4ptp4l0-21swapper/320:50:143
134491390,4ptp4l0-21swapper/223:45:132
134491390,4ptp4l0-21swapper/223:00:232
134491390,4ptp4l0-21swapper/222:13:362
134491390,4ptp4l0-21swapper/220:20:422
134491390,4ptp4l0-21swapper/219:43:482
134491390,4ptp4l0-21swapper/200:35:452
134491390,4ptp4l0-21swapper/200:07:392
134491390,4ptp4l0-21swapper/123:22:341
134491390,4ptp4l0-21swapper/121:45:171
134491390,4ptp4l0-21swapper/121:40:251
134491390,4ptp4l0-21swapper/023:15:190
134491390,4ptp4l0-21swapper/022:25:040
134491390,4ptp4l0-21swapper/021:25:170
134491390,4ptp4l0-21swapper/020:56:210
134491390,4ptp4l0-21swapper/020:35:170
134491390,4ptp4l0-21swapper/000:07:390
134491390,3ptp4l8685-21ps21:40:250
134491390,3ptp4l3884-21ntp_states22:40:220
134491390,3ptp4l3862-21memory23:50:213
134491390,3ptp4l29902-21ls23:35:260
134491390,3ptp4l21609-21ntp_states19:50:220
134491390,3ptp4l19229-21apt-get00:25:130
134491390,3ptp4l10139-21/usr/sbin/munin00:05:161
134491390,3ptp4l0-21swapper/223:08:042
134491390,3ptp4l0-21swapper/220:37:292
134491390,3ptp4l0-21swapper/122:09:041
1740993833,3cyclictest41-21ksoftirqd/319:39:593
1740993833,3cyclictest41-21ksoftirqd/300:10:163
1740993832,3cyclictest41-21ksoftirqd/320:05:003
174099380,2cyclictest134491ptp4l22:20:213
134491380,5ptp4l0-21swapper/020:25:200
134491380,4ptp4l0-21swapper/323:33:063
134491380,4ptp4l0-21swapper/323:29:263
134491380,4ptp4l0-21swapper/323:29:263
134491380,4ptp4l0-21swapper/322:32:303
134491380,4ptp4l0-21swapper/320:20:273
134491380,4ptp4l0-21swapper/319:20:283
134491380,4ptp4l0-21swapper/319:19:503
134491380,4ptp4l0-21swapper/319:10:163
134491380,4ptp4l0-21swapper/300:37:283
134491380,4ptp4l0-21swapper/300:28:203
134491380,4ptp4l0-21swapper/300:21:053
134491380,4ptp4l0-21swapper/300:00:213
134491380,4ptp4l0-21swapper/222:06:072
134491380,4ptp4l0-21swapper/222:01:222
134491380,4ptp4l0-21swapper/220:55:232
134491380,4ptp4l0-21swapper/123:05:141
134491380,4ptp4l0-21swapper/120:44:291
134491380,4ptp4l0-21swapper/120:26:151
134491380,4ptp4l0-21swapper/120:05:151
134491380,4ptp4l0-21swapper/020:44:130
134491380,4ptp4l0-21swapper/019:25:110
134491380,3ptp4l0-21swapper/123:15:201
134491380,3ptp4l0-21swapper/021:10:180
134491380,3ptp4l0-21swapper/000:35:250
1740993732,3cyclictest41-21ksoftirqd/323:10:123
1740993732,3cyclictest41-21ksoftirqd/322:10:183
1740993731,3cyclictest41-21ksoftirqd/323:55:193
1740993731,3cyclictest41-21ksoftirqd/323:55:193
134491370,4ptp4l1301-21snmpd20:07:193
134491370,4ptp4l0-21swapper/323:44:003
134491370,4ptp4l0-21swapper/322:35:463
134491370,4ptp4l0-21swapper/320:36:453
134491370,3ptp4l0-21swapper/321:43:353
134491370,3ptp4l0-21swapper/320:26:193
134491370,3ptp4l0-21swapper/022:05:170
134491360,3ptp4l0-21swapper/319:58:233
1740993530,3cyclictest41-21ksoftirqd/320:45:003
46198280,5rtkit-daemon0-21swapper/219:08:182
14072212,3sleep30-21swapper/319:09:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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