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2026-03-18 - 12:03
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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 Wed Mar 18, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1260621250,6sleep1274399cyclictest00:07:221
134491670,3ptp4l0-21swapper/022:55:160
134491640,4ptp4l0-21swapper/123:10:281
292402630,5sleep00-21swapper/023:35:160
134491630,4ptp4l0-21swapper/219:40:262
134491630,17ptp4l20967-21users22:05:290
134491620,5ptp4l0-21swapper/123:05:141
134491610,21ptp4l26408-21diskstats20:00:152
134491600,5ptp4l0-21swapper/020:05:160
134491590,4ptp4l0-21swapper/023:42:130
134491590,3ptp4l21120-21users23:15:282
134491580,3ptp4l0-21swapper/219:10:282
269292570,4sleep10-21swapper/123:30:161
134491570,3ptp4l0-21swapper/319:43:043
134491570,3ptp4l0-21swapper/122:15:171
134491570,13ptp4l32570-21apt-get19:05:122
134491560,3ptp4l0-21swapper/123:00:181
134491560,3ptp4l0-21swapper/122:50:331
134491550,3ptp4l0-21swapper/020:30:260
134491540,4ptp4l0-21swapper/019:37:560
134491540,13ptp4l423-21diskstats19:05:141
134491530,9ptp4l0-21swapper/221:51:362
134491530,5ptp4l0-21swapper/019:07:490
134491530,4ptp4l0-21swapper/022:16:510
134491530,4ptp4l0-21swapper/019:45:280
134491530,4ptp4l0-21swapper/019:45:280
134491530,3ptp4l0-21swapper/121:40:161
134491530,3ptp4l0-21swapper/020:53:010
134491530,3ptp4l0-21swapper/020:20:230
134491520,4ptp4l0-21swapper/222:01:042
134491520,4ptp4l0-21swapper/222:01:042
134491520,4ptp4l0-21swapper/220:44:262
134491520,4ptp4l0-21swapper/200:38:392
134491520,4ptp4l0-21swapper/120:35:291
134491510,4ptp4l0-21swapper/222:54:082
134491510,4ptp4l0-21swapper/220:29:362
134491510,4ptp4l0-21swapper/200:12:012
134491500,4ptp4l0-21swapper/223:21:152
134491500,4ptp4l0-21swapper/222:57:542
134491500,4ptp4l0-21swapper/222:24:272
134491500,4ptp4l0-21swapper/221:46:332
134491500,4ptp4l0-21swapper/100:33:081
134491500,3ptp4l0-21swapper/322:00:173
134491500,3ptp4l0-21swapper/322:00:173
134491500,3ptp4l0-21swapper/023:00:250
134491500,3ptp4l0-21swapper/022:40:270
134491490,4ptp4l274799cyclictest21:45:003
134491490,4ptp4l0-21swapper/319:11:323
134491490,4ptp4l0-21swapper/222:18:172
134491490,4ptp4l0-21swapper/120:12:281
134491490,4ptp4l0-21swapper/019:22:140
134491490,3ptp4l0-21swapper/121:32:521
134491490,3ptp4l0-21swapper/121:32:521
134491490,3ptp4l0-21swapper/023:34:160
134491480,4ptp4l0-21swapper/200:01:332
134491480,4ptp4l0-21swapper/121:03:101
134491480,4ptp4l0-21swapper/121:03:101
134491480,4ptp4l0-21swapper/120:43:001
134491480,4ptp4l0-21swapper/120:19:001
134491480,4ptp4l0-21swapper/020:49:190
134491480,3ptp4l0-21swapper/223:55:382
134491470,3ptp4l274799cyclictest22:46:143
134491470,3ptp4l0-21swapper/021:10:320
134491470,10ptp4l0-21swapper/121:58:321
134491460,4ptp4l0-21swapper/220:46:472
134491460,13ptp4l0-21swapper/221:12:322
134491450,8ptp4l0-21swapper/022:33:040
134491450,8ptp4l0-21swapper/021:50:220
134491450,5ptp4l0-21swapper/122:10:131
134491450,4ptp4l30697-21apt-get20:10:132
134491450,4ptp4l26576-21apt-get23:30:132
134491450,4ptp4l0-21swapper/123:26:431
134491450,3ptp4l0-21swapper/319:49:513
134491450,3ptp4l0-21swapper/319:49:513
134491450,3ptp4l0-21swapper/121:27:241
134491450,3ptp4l0-21swapper/121:24:331
134491450,10ptp4l0-21swapper/220:57:362
134491440,9ptp4l0-21swapper/222:48:532
134491440,9ptp4l0-21swapper/200:06:552
134491440,4ptp4l14476-21apt-get20:45:111
134491440,3ptp4l24280-21apt-get23:25:112
134491440,10ptp4l0-21swapper/222:33:092
134491440,10ptp4l0-21swapper/221:44:202
134491440,10ptp4l0-21swapper/221:01:042
134491440,10ptp4l0-21swapper/221:01:042
134491440,10ptp4l0-21swapper/200:23:462
274299432,5cyclictest0-21swapper/019:40:260
134491430,9ptp4l0-21swapper/223:39:502
134491430,9ptp4l0-21swapper/223:10:132
134491430,9ptp4l0-21swapper/220:37:052
134491430,5ptp4l0-21swapper/120:50:151
134491430,4ptp4l29454-21meminfo22:25:190
134491430,4ptp4l14348-21apt-get23:05:030
134491430,4ptp4l10106-21apt-get00:05:043
134491430,3ptp4l0-21swapper/123:22:541
134491430,3ptp4l0-21swapper/122:30:291
134491430,10ptp4l0-21swapper/122:22:301
134491430,10ptp4l0-21swapper/020:14:560
2743994236,3cyclictest25-21ksoftirqd/123:45:001
2743994231,4cyclictest25-21ksoftirqd/120:35:001
134491420,9ptp4l0-21swapper/222:38:092
134491420,8ptp4l0-21swapper/219:36:362
134491420,6ptp4l31555-21/usr/sbin/munin21:20:180
134491420,6ptp4l0-21swapper/021:30:140
134491420,6ptp4l0-21swapper/021:30:140
134491420,5ptp4l5402-21cstates21:35:121
134491420,5ptp4l27049-21/usr/sbin/munin20:00:203
134491420,5ptp4l16724-21/usr/sbin/munin22:00:120
134491420,5ptp4l16724-21/usr/sbin/munin22:00:120
134491420,5ptp4l0-21swapper/322:15:223
134491420,5ptp4l0-21swapper/221:25:182
134491420,5ptp4l0-21swapper/120:25:241
134491420,5ptp4l0-21swapper/100:15:191
134491420,5ptp4l0-21swapper/023:15:130
134491420,5ptp4l0-21swapper/021:45:110
134491420,5ptp4l0-21swapper/021:25:180
134491420,5ptp4l0-21swapper/021:00:120
134491420,5ptp4l0-21swapper/021:00:120
134491420,5ptp4l0-21swapper/000:05:120
134491420,4ptp4l8785-21ntp_states22:50:213
134491420,4ptp4l5772-21iostat21:35:163
134491420,4ptp4l5404-21df_inode19:15:140
134491420,4ptp4l14314-21apt-get19:35:111
134491420,4ptp4l10674-21memory19:25:200
134491420,4ptp4l0-21swapper/123:35:031
134491420,4ptp4l0-21swapper/121:45:221
134491420,3ptp4l19976-21apt-get00:25:120
134491420,3ptp4l19071-21apt-get20:55:121
134491420,3ptp4l0-21swapper/323:40:183
134491420,3ptp4l0-21swapper/320:40:093
134491420,3ptp4l0-21swapper/020:16:220
2743994137,2cyclictest25-21ksoftirqd/123:55:001
2743994136,3cyclictest25-21ksoftirqd/120:25:001
134491410,8ptp4l0-21swapper/221:09:332
134491410,8ptp4l0-21swapper/219:27:542
134491410,6ptp4l0-21swapper/319:05:103
134491410,5ptp4l32249-21kworker/1:119:19:351
134491410,5ptp4l0-21swapper/123:55:161
134491410,4ptp4l7830-21diskstats21:40:140
134491410,4ptp4l5943-21iostat22:45:170
134491410,4ptp4l25634-21apt-get20:00:041
134491410,4ptp4l24687-21meminfo21:05:200
134491410,4ptp4l18796-21apt-get22:05:033
134491410,4ptp4l17680-21apt-get00:20:131
134491410,4ptp4l14175-21ntp_states00:10:233
134491410,4ptp4l12584-21iostat_ios19:30:160
134491410,4ptp4l11088-21ntp_states22:55:231
134491410,4ptp4l0-21swapper/320:10:163
134491410,4ptp4l0-21swapper/220:06:332
134491410,4ptp4l0-21swapper/219:33:582
134491410,4ptp4l0-21swapper/019:50:200
134491410,3ptp4l3754-21meminfo19:10:200
134491410,3ptp4l3745-21df_inode23:50:130
134491410,3ptp4l21088-21ntp_states00:25:222
134491410,3ptp4l20398-21ls19:45:242
134491410,3ptp4l20398-21ls19:45:242
134491410,3ptp4l12117-21apt-get21:50:121
134491410,3ptp4l11211-21python20:35:260
2743994032,5cyclictest25-21ksoftirqd/122:37:121
134491400,5ptp4l0-21swapper/300:35:253
134491400,5ptp4l0-21swapper/223:02:292
134491400,5ptp4l0-21swapper/222:05:022
134491400,5ptp4l0-21swapper/122:00:161
134491400,5ptp4l0-21swapper/122:00:161
134491400,5ptp4l0-21swapper/121:15:171
134491400,5ptp4l0-21swapper/119:55:121
134491400,5ptp4l0-21swapper/020:40:120
134491400,5ptp4l0-21swapper/000:20:140
134491400,4ptp4l7987-21iostat19:20:161
134491400,4ptp4l33-21ksoftirqd/223:40:172
134491400,4ptp4l30962-21diskstats21:20:142
134491400,4ptp4l28333-21sshd23:31:213
134491400,4ptp4l0-21swapper/323:25:313
134491400,4ptp4l0-21swapper/321:30:183
134491400,4ptp4l0-21swapper/321:30:183
134491400,4ptp4l0-21swapper/320:20:143
134491400,4ptp4l0-21swapper/223:06:332
134491400,4ptp4l0-21swapper/222:42:342
134491400,4ptp4l0-21swapper/222:13:072
134491400,4ptp4l0-21swapper/220:52:032
134491400,4ptp4l0-21swapper/220:20:102
134491400,4ptp4l0-21swapper/219:20:402
134491400,4ptp4l0-21swapper/123:19:521
134491400,4ptp4l0-21swapper/122:05:191
134491400,4ptp4l0-21swapper/121:10:121
134491400,4ptp4l0-21swapper/119:50:221
134491400,4ptp4l0-21swapper/119:45:201
134491400,4ptp4l0-21swapper/119:45:201
134491400,4ptp4l0-21swapper/023:23:590
134491400,4ptp4l0-21swapper/022:35:150
134491400,4ptp4l0-21swapper/020:55:260
134491400,4ptp4l0-21swapper/020:25:280
134491400,4ptp4l0-21swapper/020:02:460
134491400,4ptp4l0-21swapper/000:10:120
134491400,4ptp4l0-21swapper/000:00:290
134491400,3ptp4l3386-21df_inode22:40:141
134491400,3ptp4l29282-21memory21:15:180
134491400,3ptp4l14619-21df21:55:120
134491400,3ptp4l14012-21memory00:10:211
2743993935,2cyclictest25-21ksoftirqd/100:05:001
134491390,5ptp4l274799cyclictest21:21:083
134491390,5ptp4l0-21swapper/300:16:553
134491390,5ptp4l0-21swapper/023:45:110
134491390,4ptp4l0-21swapper/323:55:183
134491390,4ptp4l0-21swapper/323:00:113
134491390,4ptp4l0-21swapper/322:31:113
134491390,4ptp4l0-21swapper/322:20:213
134491390,4ptp4l0-21swapper/321:59:323
134491390,4ptp4l0-21swapper/321:53:283
134491390,4ptp4l0-21swapper/321:15:103
134491390,4ptp4l0-21swapper/320:57:263
134491390,4ptp4l0-21swapper/320:26:563
134491390,4ptp4l0-21swapper/320:15:163
134491390,4ptp4l0-21swapper/320:05:503
134491390,4ptp4l0-21swapper/319:58:563
134491390,4ptp4l0-21swapper/319:39:483
134491390,4ptp4l0-21swapper/222:27:572
134491390,4ptp4l0-21swapper/221:55:082
134491390,4ptp4l0-21swapper/221:31:062
134491390,4ptp4l0-21swapper/221:31:062
134491390,4ptp4l0-21swapper/220:30:392
134491390,4ptp4l0-21swapper/220:15:152
134491390,4ptp4l0-21swapper/219:56:252
134491390,4ptp4l0-21swapper/219:53:172
134491390,4ptp4l0-21swapper/200:15:402
134491390,4ptp4l0-21swapper/122:45:351
134491390,4ptp4l0-21swapper/121:05:171
134491390,4ptp4l0-21swapper/120:08:361
134491390,4ptp4l0-21swapper/119:32:341
134491390,4ptp4l0-21swapper/119:10:441
134491390,4ptp4l0-21swapper/023:59:350
134491390,4ptp4l0-21swapper/023:10:140
134491390,4ptp4l0-21swapper/022:20:010
134491390,4ptp4l0-21swapper/022:10:140
134491390,4ptp4l0-21swapper/021:35:130
134491390,4ptp4l0-21swapper/019:55:080
134491390,4ptp4l0-21swapper/000:30:190
134491390,3ptp4l24843-21iostat23:25:170
134491390,3ptp4l0-21swapper/221:38:132
134491390,3ptp4l0-21swapper/221:15:102
134491390,3ptp4l0-21swapper/200:32:372
134491390,3ptp4l0-21swapper/123:49:051
134491390,3ptp4l0-21swapper/119:40:201
134491380,5ptp4l0-21swapper/100:25:111
134491380,4ptp4l274799cyclictest22:13:153
134491380,4ptp4l274799cyclictest20:47:463
134491380,4ptp4l0-21swapper/323:20:133
134491380,4ptp4l0-21swapper/323:16:003
134491380,4ptp4l0-21swapper/323:05:243
134491380,4ptp4l0-21swapper/321:25:233
134491380,4ptp4l0-21swapper/321:02:503
134491380,4ptp4l0-21swapper/321:02:503
134491380,4ptp4l0-21swapper/320:36:243
134491380,4ptp4l0-21swapper/320:30:083
134491380,4ptp4l0-21swapper/319:50:203
134491380,4ptp4l0-21swapper/319:23:563
134491380,4ptp4l0-21swapper/300:00:143
134491380,4ptp4l0-21swapper/223:46:212
134491380,4ptp4l0-21swapper/022:50:350
134491380,4ptp4l0-21swapper/000:16:430
134491380,3ptp4l16942-21cpuspeed_turbos20:50:133
134491380,3ptp4l10443-21irqrtprio19:25:181
134491380,3ptp4l0-21swapper/322:25:183
134491380,3ptp4l0-21swapper/321:10:253
134491380,3ptp4l0-21swapper/321:06:153
134491380,3ptp4l0-21swapper/319:30:443
134491380,3ptp4l0-21swapper/223:50:142
134491380,3ptp4l0-21swapper/219:15:302
134491380,3ptp4l0-21swapper/122:25:291
134491370,5ptp4l0-21swapper/322:40:173
134491370,4ptp4l0-21swapper/322:58:473
134491370,4ptp4l0-21swapper/322:36:333
134491370,4ptp4l0-21swapper/321:48:093
134491370,4ptp4l0-21swapper/319:26:223
134491370,3ptp4l0-21swapper/323:50:203
134491370,3ptp4l0-21swapper/319:18:103
134491370,3ptp4l0-21swapper/300:25:233
134491370,3ptp4l0-21swapper/100:35:021
134491370,3ptp4l0-21swapper/000:35:100
134491360,3ptp4l0-21swapper/323:45:383
134491360,3ptp4l0-21swapper/323:36:553
134491360,3ptp4l0-21swapper/300:20:283
2747993429,3cyclictest41-21ksoftirqd/300:32:403
134491310,3ptp4l0-21swapper/323:14:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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