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2026-08-02 - 08:34
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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 02, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2289221600,4sleep2672799cyclictest23:10:292
134491700,3ptp4l33-21ksoftirqd/223:21:542
134491630,3ptp4l13435-1kworker/0:1H20:00:140
134491630,26ptp4l0-21swapper/021:45:200
134491610,5ptp4l0-21swapper/122:50:221
134491600,5ptp4l0-21swapper/120:15:261
134491600,5ptp4l0-21swapper/120:15:261
134491580,4ptp4l0-21swapper/019:35:200
134491580,3ptp4l0-21swapper/319:10:143
134491560,4ptp4l0-21swapper/022:50:580
134491560,4ptp4l0-21swapper/020:41:520
275542550,1sleep027555-21/usr/sbin/munin19:55:130
134491550,4ptp4l0-21swapper/219:34:522
134491550,3ptp4l0-21swapper/322:56:003
134491550,3ptp4l0-21swapper/219:55:412
134491550,3ptp4l0-21swapper/119:37:421
134491550,3ptp4l0-21swapper/022:40:240
134491550,2ptp4l29937-21sshd22:18:021
134491540,4ptp4l0-21swapper/122:48:021
134491540,4ptp4l0-21swapper/020:11:570
134491540,3ptp4l0-21swapper/322:15:163
134491530,4ptp4l0-21swapper/219:47:102
134491530,4ptp4l0-21swapper/219:19:142
134491530,3ptp4l0-21swapper/022:45:140
134491530,3ptp4l0-21swapper/021:00:240
134491530,11ptp4l6194-21sshd19:06:581
134491520,9ptp4l4339-21apt-get19:05:120
134491520,4ptp4l0-21swapper/023:08:400
134491520,4ptp4l0-21swapper/019:33:350
134491520,4ptp4l0-21swapper/019:16:280
134491520,3ptp4l0-21swapper/021:23:040
46198510,39rtkit-daemon16861-21apt-get00:10:112
134491510,4ptp4l0-21swapper/321:53:203
134491510,4ptp4l0-21swapper/222:45:522
134491510,4ptp4l0-21swapper/222:09:552
134491510,4ptp4l0-21swapper/222:09:552
134491510,4ptp4l0-21swapper/221:30:072
134491510,4ptp4l0-21swapper/220:22:092
134491510,4ptp4l0-21swapper/220:22:092
134491510,4ptp4l0-21swapper/200:07:192
134491510,4ptp4l0-21swapper/021:55:580
134491510,4ptp4l0-21swapper/021:26:080
134491510,4ptp4l0-21swapper/020:05:250
134491510,4ptp4l0-21swapper/000:27:140
134491510,3ptp4l0-21swapper/022:38:020
134491510,3ptp4l0-21swapper/022:38:010
134491500,6ptp4l0-21swapper/219:09:182
134491500,4ptp4l0-21swapper/223:32:402
134491500,4ptp4l0-21swapper/200:27:112
134491500,4ptp4l0-21swapper/022:24:590
134491500,4ptp4l0-21swapper/020:54:580
134491500,4ptp4l0-21swapper/019:26:580
134491500,3ptp4l0-21swapper/023:54:520
134491500,3ptp4l0-21swapper/021:18:300
134491490,4ptp4l0-21swapper/220:03:002
134491490,4ptp4l0-21swapper/219:53:352
134491490,4ptp4l0-21swapper/200:21:252
134491490,4ptp4l0-21swapper/022:56:480
134491490,4ptp4l0-21swapper/022:31:290
134491490,4ptp4l0-21swapper/020:36:350
134491490,4ptp4l0-21swapper/020:34:000
134491490,4ptp4l0-21swapper/020:18:150
134491490,4ptp4l0-21swapper/020:18:150
134491490,4ptp4l0-21swapper/019:52:100
134491490,3ptp4l0-21swapper/219:20:232
134491480,4ptp4l0-21swapper/321:49:163
134491480,4ptp4l0-21swapper/120:08:041
134491480,4ptp4l0-21swapper/023:11:200
134491480,4ptp4l0-21swapper/021:42:530
134491480,4ptp4l0-21swapper/021:39:010
134491480,3ptp4l0-21swapper/120:01:091
134491480,3ptp4l0-21swapper/023:00:430
134491480,3ptp4l0-21swapper/020:47:120
134491480,3ptp4l0-21swapper/019:48:200
134491470,4ptp4l0-21swapper/219:12:262
134491470,4ptp4l0-21swapper/023:41:510
134491470,4ptp4l0-21swapper/023:24:430
134491470,3ptp4l0-21swapper/020:58:520
134491460,4ptp4l0-21swapper/023:56:070
134491460,4ptp4l0-21swapper/021:32:320
134491460,4ptp4l0-21swapper/020:20:400
134491460,4ptp4l0-21swapper/020:20:400
134491460,3ptp4l0-21swapper/119:11:301
672699450,43cyclictest26240-21kworker/1:020:45:391
134491450,5ptp4l29178-21ls21:05:280
134491450,5ptp4l0-21swapper/122:12:281
134491450,4ptp4l0-21swapper/000:30:030
134491450,12ptp4l25-21ksoftirqd/123:52:201
134491440,9ptp4l0-21swapper/221:35:482
134491440,5ptp4l0-21swapper/321:10:133
134491440,5ptp4l0-21swapper/319:09:523
134491440,4ptp4l0-21swapper/000:03:010
134491440,3ptp4l0-21swapper/023:49:330
6726994313,28cyclictest26240-21kworker/1:021:37:191
134491430,4ptp4l22245-21users19:40:300
134491430,4ptp4l18034-21ls21:50:261
134491430,3ptp4l20577-21apt-get19:40:142
134491430,3ptp4l0-21swapper/123:30:031
6728994232,8cyclictest41-21ksoftirqd/322:25:003
134491420,5ptp4l16390-21hddtemp_smartct19:30:143
134491420,5ptp4l0-21swapper/320:40:143
134491420,5ptp4l0-21swapper/319:25:153
134491420,5ptp4l0-21swapper/222:15:232
134491420,5ptp4l0-21swapper/022:25:230
134491420,5ptp4l0-21swapper/000:05:160
134491420,4ptp4l4119-21ls22:30:281
134491420,4ptp4l26316-21iostat_ios22:10:183
134491420,4ptp4l15958-21apt-get19:30:111
134491420,4ptp4l12672-21ntp_states20:30:241
134491420,4ptp4l0-21swapper/121:11:521
134491420,3ptp4l12295-21iostat21:40:162
134491420,10ptp4l0-21swapper/321:40:063
6728994136,3cyclictest41-21ksoftirqd/322:40:003
6728994136,3cyclictest41-21ksoftirqd/322:40:003
6727994136,3cyclictest356-21wc23:35:142
134491410,4ptp4l7546-21hddtemp_smartct21:30:141
134491410,4ptp4l26693-21meminfo22:10:202
134491410,4ptp4l23817-21meminfo19:45:193
134491410,4ptp4l1731-21apt-get20:10:011
134491410,4ptp4l16747-21df21:50:130
134491410,4ptp4l0-21swapper/300:21:533
134491410,4ptp4l0-21swapper/123:55:201
134491410,4ptp4l0-21swapper/022:17:330
134491410,4ptp4l0-21swapper/020:25:590
134491410,3ptp4l4971-21apt-get22:35:141
134491410,3ptp4l4971-21apt-get22:35:141
134491410,3ptp4l26861-21ls23:20:231
134491410,3ptp4l16174-21apt-get20:40:152
134491410,3ptp4l13852-21apt-get20:35:101
134491410,2ptp4l121rcu_preempt21:29:521
134491410,1ptp4l0-21swapper/222:03:252
6728994035,3cyclictest41-21ksoftirqd/300:35:203
6728994035,3cyclictest401ktimersoftd/322:30:003
6726994012,27cyclictest0-21swapper/100:35:591
134491400,9ptp4l0-21swapper/222:41:462
134491400,5ptp4l0-21swapper/322:05:133
134491400,5ptp4l0-21swapper/322:05:133
134491400,5ptp4l0-21swapper/200:00:302
134491400,5ptp4l0-21swapper/123:00:191
134491400,5ptp4l0-21swapper/121:20:121
134491400,5ptp4l0-21swapper/121:05:201
134491400,5ptp4l0-21swapper/120:20:171
134491400,5ptp4l0-21swapper/120:20:161
134491400,5ptp4l0-21swapper/000:15:230
134491400,4ptp4l672699cyclictest19:48:021
134491400,4ptp4l6540-21ls22:35:302
134491400,4ptp4l6540-21ls22:35:302
134491400,4ptp4l5122-21diskstats21:25:143
134491400,4ptp4l24928-21ls00:25:191
134491400,4ptp4l19678-21df_inode00:15:151
134491400,4ptp4l17424-21iostat00:10:170
134491400,4ptp4l10534-21ntp_states21:35:243
134491400,4ptp4l0-21swapper/321:03:593
134491400,4ptp4l0-21swapper/319:50:283
134491400,4ptp4l0-21swapper/319:40:263
134491400,4ptp4l0-21swapper/300:00:303
134491400,4ptp4l0-21swapper/221:55:292
134491400,4ptp4l0-21swapper/221:50:142
134491400,4ptp4l0-21swapper/220:59:382
134491400,4ptp4l0-21swapper/200:38:572
134491400,4ptp4l0-21swapper/123:45:241
134491400,4ptp4l0-21swapper/123:25:111
134491400,4ptp4l0-21swapper/122:40:141
134491400,4ptp4l0-21swapper/122:05:201
134491400,4ptp4l0-21swapper/122:05:191
134491400,4ptp4l0-21swapper/121:55:141
134491400,4ptp4l0-21swapper/121:15:021
134491400,4ptp4l0-21swapper/120:25:141
134491400,4ptp4l0-21swapper/119:55:111
134491400,4ptp4l0-21swapper/119:25:271
134491400,4ptp4l0-21swapper/100:10:171
134491400,4ptp4l0-21swapper/023:17:570
134491400,4ptp4l0-21swapper/022:04:340
134491400,4ptp4l0-21swapper/021:11:440
134491400,4ptp4l0-21swapper/000:37:080
134491400,3ptp4l6973-21df19:10:160
134491400,3ptp4l321ktimersoftd/219:29:322
134491400,3ptp4l26798-21ls21:00:261
134491400,3ptp4l22644-21memory00:20:200
134491400,3ptp4l19431-21perl23:05:171
134491400,3ptp4l14361-21apt-get00:05:161
134491400,3ptp4l0-21swapper/323:45:193
6728993935,2cyclictest41-21ksoftirqd/323:10:003
134491390,5ptp4l0-21swapper/100:20:231
134491390,4ptp4l26820-21awk22:10:220
134491390,4ptp4l24891-21sshd20:57:161
134491390,4ptp4l0-21swapper/322:34:013
134491390,4ptp4l0-21swapper/322:04:593
134491390,4ptp4l0-21swapper/320:50:173
134491390,4ptp4l0-21swapper/320:15:123
134491390,4ptp4l0-21swapper/320:15:123
134491390,4ptp4l0-21swapper/319:35:283
134491390,4ptp4l0-21swapper/319:15:183
134491390,4ptp4l0-21swapper/223:59:332
134491390,4ptp4l0-21swapper/223:27:402
134491390,4ptp4l0-21swapper/223:16:282
134491390,4ptp4l0-21swapper/222:55:082
134491390,4ptp4l0-21swapper/222:51:082
134491390,4ptp4l0-21swapper/222:31:032
134491390,4ptp4l0-21swapper/222:25:112
134491390,4ptp4l0-21swapper/222:21:422
134491390,4ptp4l0-21swapper/221:27:582
134491390,4ptp4l0-21swapper/221:23:232
134491390,4ptp4l0-21swapper/221:05:522
134491390,4ptp4l0-21swapper/220:30:282
134491390,4ptp4l0-21swapper/220:26:332
134491390,4ptp4l0-21swapper/220:11:242
134491390,4ptp4l0-21swapper/220:07:582
134491390,4ptp4l0-21swapper/219:39:432
134491390,4ptp4l0-21swapper/123:35:071
134491390,4ptp4l0-21swapper/123:20:011
134491390,4ptp4l0-21swapper/122:30:001
134491390,4ptp4l0-21swapper/122:00:311
134491390,4ptp4l0-21swapper/121:45:141
134491390,4ptp4l0-21swapper/119:52:011
134491390,4ptp4l0-21swapper/100:31:031
134491390,4ptp4l0-21swapper/023:38:300
134491390,4ptp4l0-21swapper/023:30:170
134491390,4ptp4l0-21swapper/023:25:050
134491390,4ptp4l0-21swapper/022:07:520
134491390,4ptp4l0-21swapper/022:07:520
134491390,3ptp4l2997-21df23:40:131
134491390,3ptp4l14394-21apt-get22:55:111
134491390,3ptp4l11798-21hddtemp_smartct19:20:160
134491390,3ptp4l0-21swapper/223:09:332
134491390,3ptp4l0-21swapper/123:10:251
134491390,2ptp4l13227-21ls21:40:261
6728993833,3cyclictest41-21ksoftirqd/322:40:193
6728993833,3cyclictest41-21ksoftirqd/300:00:003
6728993827,8cyclictest41-21ksoftirqd/300:15:023
134491380,5ptp4l7132-21cpu21:30:113
134491380,5ptp4l0-21swapper/320:10:163
134491380,4ptp4l0-21swapper/323:16:483
134491380,4ptp4l0-21swapper/323:03:483
134491380,4ptp4l0-21swapper/322:53:363
134491380,4ptp4l0-21swapper/321:55:203
134491380,4ptp4l0-21swapper/321:05:063
134491380,4ptp4l0-21swapper/320:55:343
134491380,4ptp4l0-21swapper/320:48:323
134491380,4ptp4l0-21swapper/320:31:283
134491380,4ptp4l0-21swapper/320:20:383
134491380,4ptp4l0-21swapper/320:20:383
134491380,4ptp4l0-21swapper/320:01:503
134491380,4ptp4l0-21swapper/319:20:143
134491380,4ptp4l0-21swapper/221:12:402
134491380,4ptp4l0-21swapper/221:03:162
134491380,4ptp4l0-21swapper/220:51:292
134491380,4ptp4l0-21swapper/220:48:122
134491380,4ptp4l0-21swapper/200:31:402
134491380,4ptp4l0-21swapper/200:16:302
134491380,4ptp4l0-21swapper/120:53:571
134491380,4ptp4l0-21swapper/119:40:201
134491380,4ptp4l0-21swapper/119:21:081
134491380,4ptp4l0-21swapper/119:20:001
134491380,3ptp4l0-21swapper/220:37:242
134491380,3ptp4l0-21swapper/120:40:021
134491380,2ptp4l31404-21strings22:20:211
6728993733,2cyclictest41-21ksoftirqd/319:55:193
6728993732,3cyclictest41-21ksoftirqd/323:39:593
134491370,4ptp4l0-21swapper/321:20:163
134491370,4ptp4l0-21swapper/320:05:043
134491370,4ptp4l0-21swapper/223:50:352
134491370,4ptp4l0-21swapper/223:45:412
134491370,4ptp4l0-21swapper/223:44:382
134491370,4ptp4l0-21swapper/221:45:402
134491370,4ptp4l0-21swapper/220:17:472
134491370,4ptp4l0-21swapper/220:17:472
134491370,3ptp4l32577-21ls21:15:153
134491370,3ptp4l0-21swapper/300:12:433
134491370,3ptp4l0-21swapper/100:00:151
6728993631,3cyclictest41-21ksoftirqd/300:30:193
134491360,4ptp4l0-21swapper/323:42:043
134491360,4ptp4l0-21swapper/322:46:483
134491360,4ptp4l0-21swapper/300:26:433
134491360,4ptp4l0-21swapper/300:06:573
134491360,3ptp4l0-21swapper/223:03:382
134491360,3ptp4l0-21swapper/221:15:162
6728993529,4cyclictest41-21ksoftirqd/320:25:163
134491350,4ptp4l0-21swapper/323:28:013
134491350,4ptp4l0-21swapper/323:14:003
6728993429,3cyclictest41-21ksoftirqd/323:20:253
134491340,3ptp4l0-21swapper/320:38:513
6728993328,3cyclictest41-21ksoftirqd/323:55:013
6728993227,3cyclictest41-21ksoftirqd/323:30:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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