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2026-01-06 - 22:19
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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 rackdslot3.osadl.org (updated Tue Jan 06, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66652204171,22sleep10-21swapper/107:05:101
139491203170,22phc2sys0-21swapper/307:08:103
84742202169,22sleep20-21swapper/207:05:552
84672195163,22sleep00-21swapper/007:05:490
1324621610,6sleep3922899cyclictest10:40:133
139391810,1ptp4l19355-21hddtemp_smartct07:30:153
9227996911,19cyclictest4304-21date09:15:002
922799581,53cyclictest19605-21cron08:40:002
139391570,1ptp4l401ktimersoftd/309:00:133
9227995610,22cyclictest17746-21/usr/sbin/munin10:50:232
922799555,21cyclictest1870-21taskset11:23:002
922799540,2cyclictest158922sleep207:20:512
922799510,4cyclictest10043-21chrt10:30:542
226392510,4sleep09-21ksoftirqd/012:05:230
922799457,24cyclictest4133-21seq11:25:522
139391450,1ptp4l401ktimersoftd/309:43:523
139391440,0ptp4l401ktimersoftd/308:40:183
9227994237,3cyclictest17524-21sh10:50:002
922799417,22cyclictest18835-21/usr/sbin/munin07:30:262
922799415,23cyclictest6205-21seq09:15:452
9226994136,3cyclictest23346-21cron07:40:011
139391410,0ptp4l401ktimersoftd/312:39:213
9228994034,3cyclictest41-21ksoftirqd/307:20:003
9227994028,10cyclictest33-21ksoftirqd/212:25:012
139391400,1ptp4l401ktimersoftd/309:49:313
139391400,0ptp4l401ktimersoftd/308:06:253
139391400,0ptp4l401ktimersoftd/308:06:253
9228993833,3cyclictest41-21ksoftirqd/310:35:003
922799380,3cyclictest8829-21turbostat.cron07:14:562
9226993833,3cyclictest25-21ksoftirqd/108:08:571
9226993833,3cyclictest25-21ksoftirqd/108:08:571
139391380,1ptp4l401ktimersoftd/310:23:183
139391380,1ptp4l401ktimersoftd/310:23:183
9228993733,2cyclictest41-21ksoftirqd/307:55:003
9228993729,5cyclictest41-21ksoftirqd/308:00:113
139391370,0ptp4l401ktimersoftd/307:10:123
922799360,2cyclictest13993-21latency_hist11:50:012
9226993631,3cyclictest25-21ksoftirqd/110:15:001
9226993630,4cyclictest25-21ksoftirqd/112:29:221
9226993630,4cyclictest25-21ksoftirqd/107:23:551
9226993618,3cyclictest25-21ksoftirqd/109:40:121
9228993529,4cyclictest41-21ksoftirqd/309:52:393
9228993529,4cyclictest41-21ksoftirqd/309:29:573
9228993528,4cyclictest41-21ksoftirqd/307:55:123
9228993523,9cyclictest41-21ksoftirqd/310:02:563
9227993529,4cyclictest33-21ksoftirqd/209:52:112
9227993529,4cyclictest33-21ksoftirqd/208:50:092
9227993529,4cyclictest33-21ksoftirqd/208:32:122
9226993529,4cyclictest25-21ksoftirqd/112:17:271
9226993529,4cyclictest25-21ksoftirqd/110:28:081
9226993529,4cyclictest25-21ksoftirqd/108:29:141
922699350,2cyclictest121rcu_preempt11:17:131
9225993528,5cyclictest9-21ksoftirqd/009:38:440
9228993429,3cyclictest41-21ksoftirqd/307:36:573
9228993428,4cyclictest41-21ksoftirqd/312:15:083
9228993428,4cyclictest41-21ksoftirqd/310:29:343
9228993428,4cyclictest41-21ksoftirqd/310:08:123
9228993427,4cyclictest41-21ksoftirqd/311:35:083
922799348,23cyclictest207-21systemd-journal12:27:512
9227993429,3cyclictest33-21ksoftirqd/211:54:032
9227993428,4cyclictest33-21ksoftirqd/211:14:422
9227993428,4cyclictest33-21ksoftirqd/210:41:052
9227993428,4cyclictest33-21ksoftirqd/210:17:412
9227993428,4cyclictest33-21ksoftirqd/208:12:262
9227993428,4cyclictest33-21ksoftirqd/207:45:012
9227993428,4cyclictest33-21ksoftirqd/207:37:082
9226993429,3cyclictest25-21ksoftirqd/111:14:011
9226993429,3cyclictest25-21ksoftirqd/110:03:161
9226993429,3cyclictest25-21ksoftirqd/108:55:001
9226993428,4cyclictest25-21ksoftirqd/112:34:191
9226993428,4cyclictest25-21ksoftirqd/112:21:321
9226993428,4cyclictest25-21ksoftirqd/110:36:011
9226993428,4cyclictest25-21ksoftirqd/107:26:321
9225993429,3cyclictest9-21ksoftirqd/008:40:160
9225993427,5cyclictest9-21ksoftirqd/010:49:250
139391340,0ptp4l401ktimersoftd/309:55:173
9228993329,2cyclictest41-21ksoftirqd/312:12:483
9228993327,4cyclictest41-21ksoftirqd/311:00:073
9228993327,4cyclictest41-21ksoftirqd/308:17:003
9228993327,4cyclictest41-21ksoftirqd/307:44:113
9228993327,3cyclictest41-21ksoftirqd/311:05:303
9228993326,4cyclictest41-21ksoftirqd/309:12:523
922899331,3cyclictest121rcu_preempt12:20:123
9227993328,3cyclictest33-21ksoftirqd/212:05:112
9227993328,3cyclictest33-21ksoftirqd/211:30:592
9227993328,3cyclictest33-21ksoftirqd/211:07:522
9227993328,3cyclictest33-21ksoftirqd/209:09:022
9227993328,3cyclictest33-21ksoftirqd/209:00:122
9227993327,4cyclictest33-21ksoftirqd/212:14:242
9227993327,4cyclictest33-21ksoftirqd/212:01:282
9227993327,4cyclictest33-21ksoftirqd/211:42:392
9226993328,3cyclictest25-21ksoftirqd/112:36:251
9226993328,3cyclictest25-21ksoftirqd/110:09:191
9226993328,3cyclictest25-21ksoftirqd/107:41:431
9226993327,4cyclictest25-21ksoftirqd/110:42:271
9226993327,4cyclictest25-21ksoftirqd/109:36:251
9226993327,4cyclictest25-21ksoftirqd/109:26:581
9226993327,4cyclictest25-21ksoftirqd/109:02:511
9226993327,4cyclictest25-21ksoftirqd/108:56:091
9226993327,4cyclictest25-21ksoftirqd/107:52:591
9225993328,3cyclictest9-21ksoftirqd/010:41:110
9225993327,4cyclictest9-21ksoftirqd/009:48:040
9228993228,2cyclictest41-21ksoftirqd/308:25:013
9228993227,3cyclictest41-21ksoftirqd/311:55:003
9228993227,3cyclictest41-21ksoftirqd/310:55:213
9228993227,3cyclictest41-21ksoftirqd/310:10:193
9228993227,2cyclictest41-21ksoftirqd/310:40:003
9228993226,4cyclictest41-21ksoftirqd/312:02:443
9228993226,4cyclictest41-21ksoftirqd/311:44:513
9228993226,4cyclictest41-21ksoftirqd/311:27:583
9228993226,4cyclictest41-21ksoftirqd/310:46:103
9228993226,4cyclictest41-21ksoftirqd/308:29:003
9228993226,4cyclictest41-21ksoftirqd/307:26:343
9227993226,4cyclictest33-21ksoftirqd/212:19:412
9227993226,4cyclictest33-21ksoftirqd/211:56:422
9227993226,4cyclictest33-21ksoftirqd/208:29:302
922799322,28cyclictest10057-21kworker/2:208:24:002
922799321,3cyclictest9076-21chrt11:38:252
9227993213,16cyclictest8948-21latency_hist09:25:002
922799320,4cyclictest11819-21expr09:30:122
922799320,3cyclictest25770-21chrt09:59:172
9226993227,3cyclictest25-21ksoftirqd/111:50:421
9226993227,3cyclictest25-21ksoftirqd/111:27:041
9226993227,3cyclictest25-21ksoftirqd/110:24:501
9226993227,3cyclictest25-21ksoftirqd/110:24:501
9226993227,3cyclictest25-21ksoftirqd/108:41:241
9226993227,3cyclictest25-21ksoftirqd/107:10:101
9226993226,4cyclictest25-21ksoftirqd/111:56:091
9226993226,4cyclictest25-21ksoftirqd/111:32:461
9226993226,4cyclictest25-21ksoftirqd/109:20:491
9226993226,4cyclictest25-21ksoftirqd/109:05:081
9226993226,4cyclictest25-21ksoftirqd/108:37:481
9226993226,4cyclictest25-21ksoftirqd/107:15:111
9226993225,5cyclictest25-21ksoftirqd/112:04:511
9225993227,3cyclictest9-21ksoftirqd/012:10:130
9225993227,3cyclictest9-21ksoftirqd/011:30:030
9225993226,4cyclictest9-21ksoftirqd/012:29:530
9225993226,4cyclictest9-21ksoftirqd/010:36:460
9225993226,4cyclictest9-21ksoftirqd/008:02:290
9225993226,4cyclictest9-21ksoftirqd/007:11:020
139391320,0ptp4l401ktimersoftd/308:50:233
9228993126,3cyclictest41-21ksoftirqd/310:15:133
9228993126,3cyclictest41-21ksoftirqd/309:05:183
9228993125,4cyclictest41-21ksoftirqd/311:13:193
9228993125,3cyclictest41-21ksoftirqd/309:35:193
9228993125,3cyclictest41-21ksoftirqd/309:30:183
9228993122,6cyclictest41-21ksoftirqd/309:15:193
9227993126,3cyclictest33-21ksoftirqd/209:35:122
9227993126,3cyclictest33-21ksoftirqd/207:46:242
9227993125,4cyclictest33-21ksoftirqd/211:04:192
9227993125,4cyclictest33-21ksoftirqd/210:29:052
9227993125,4cyclictest33-21ksoftirqd/208:15:072
9227993125,3cyclictest33-21ksoftirqd/210:37:492
9227993124,5cyclictest33-21ksoftirqd/210:21:142
9227993124,5cyclictest33-21ksoftirqd/210:21:142
9227993124,5cyclictest33-21ksoftirqd/208:46:562
9227993113,16cyclictest19171-21expr09:45:132
922799310,4cyclictest207-21systemd-journal12:32:522
9226993126,3cyclictest25-21ksoftirqd/110:55:141
9226993126,3cyclictest25-21ksoftirqd/110:47:481
9226993125,4cyclictest25-21ksoftirqd/111:42:531
9226993125,4cyclictest25-21ksoftirqd/111:23:561
9226993125,4cyclictest25-21ksoftirqd/109:30:031
9226993125,4cyclictest25-21ksoftirqd/108:32:551
9225993126,3cyclictest9-21ksoftirqd/012:15:110
9225993125,4cyclictest9-21ksoftirqd/009:18:590
9225993125,4cyclictest9-21ksoftirqd/008:11:520
9225993125,4cyclictest9-21ksoftirqd/007:47:370
9225993125,4cyclictest9-21ksoftirqd/007:40:470
9225993125,4cyclictest9-21ksoftirqd/007:17:400
9225993125,3cyclictest9-21ksoftirqd/011:45:010
9228993026,3cyclictest41-21ksoftirqd/312:25:183
9228993026,2cyclictest41-21ksoftirqd/307:25:003
9228993025,3cyclictest41-21ksoftirqd/311:20:143
9228993025,2cyclictest41-21ksoftirqd/307:50:003
9228993024,4cyclictest41-21ksoftirqd/311:47:203
9228993024,3cyclictest41-21ksoftirqd/308:45:183
9228993024,3cyclictest41-21ksoftirqd/308:40:003
922799307,20cyclictest31799-21cut10:10:192
922799305,23cyclictest20587-21kworker/2:107:16:172
9227993025,3cyclictest33-21ksoftirqd/209:40:462
9227993025,3cyclictest33-21ksoftirqd/208:40:592
922799301,27cyclictest32576-21kworker/2:009:25:122
922799301,27cyclictest32062-21awk11:20:002
922799300,3cyclictest3321-21grep08:05:132
922799300,3cyclictest3321-21grep08:05:132
9226993025,3cyclictest25-21ksoftirqd/111:39:301
9226993025,3cyclictest25-21ksoftirqd/110:54:021
9226993025,3cyclictest25-21ksoftirqd/109:19:441
9226993025,3cyclictest25-21ksoftirqd/108:01:171
9226993024,4cyclictest25-21ksoftirqd/111:05:351
9226993024,4cyclictest25-21ksoftirqd/108:48:461
9226993024,4cyclictest25-21ksoftirqd/107:46:581
9225993026,3cyclictest9-21ksoftirqd/009:24:350
9225993025,3cyclictest9-21ksoftirqd/012:00:450
9225993025,3cyclictest9-21ksoftirqd/010:19:590
9225993025,3cyclictest9-21ksoftirqd/009:42:180
9225993025,3cyclictest9-21ksoftirqd/009:34:360
9225993025,3cyclictest9-21ksoftirqd/008:30:180
9225993024,4cyclictest9-21ksoftirqd/011:56:070
9225993024,4cyclictest9-21ksoftirqd/011:52:110
9225993024,4cyclictest9-21ksoftirqd/011:28:360
9225993024,4cyclictest9-21ksoftirqd/011:15:560
9225993024,4cyclictest9-21ksoftirqd/008:50:110
9225993024,4cyclictest9-21ksoftirqd/007:52:540
139391300,0ptp4l401ktimersoftd/308:55:173
9228992924,3cyclictest41-21ksoftirqd/312:35:013
9228992924,2cyclictest41-21ksoftirqd/308:30:133
9228992923,4cyclictest41-21ksoftirqd/312:08:343
9228992923,4cyclictest41-21ksoftirqd/311:18:133
9228992923,4cyclictest41-21ksoftirqd/308:12:473
922799296,21cyclictest31749-21expr07:55:192
9227992923,4cyclictest33-21ksoftirqd/208:57:112
9226992924,3cyclictest25-21ksoftirqd/108:10:131
9226992924,3cyclictest25-21ksoftirqd/107:31:451
9226992923,4cyclictest25-21ksoftirqd/109:51:531
9225992924,3cyclictest9-21ksoftirqd/012:34:590
9225992924,3cyclictest9-21ksoftirqd/011:00:110
9225992924,3cyclictest9-21ksoftirqd/010:50:300
9225992924,3cyclictest9-21ksoftirqd/010:32:080
9225992924,3cyclictest9-21ksoftirqd/010:11:590
9225992923,4cyclictest9-21ksoftirqd/010:08:450
9225992923,4cyclictest9-21ksoftirqd/009:26:040
9225992923,4cyclictest9-21ksoftirqd/009:05:430
9225992923,4cyclictest9-21ksoftirqd/008:27:070
9225992923,4cyclictest9-21ksoftirqd/008:05:110
9225992923,4cyclictest9-21ksoftirqd/008:05:110
9228992823,3cyclictest41-21ksoftirqd/310:50:253
922799286,20cyclictest28061-21sshd10:02:572
9227992822,4cyclictest33-21ksoftirqd/212:38:302
9227992822,4cyclictest33-21ksoftirqd/210:57:122
9227992822,4cyclictest33-21ksoftirqd/208:00:352
922799280,3cyclictest29444-21meminfo07:50:212
922799280,3cyclictest17850-21grep07:25:252
9226992823,3cyclictest25-21ksoftirqd/108:20:301
9226992823,3cyclictest25-21ksoftirqd/107:55:461
9226992822,4cyclictest25-21ksoftirqd/111:02:221
9226992822,4cyclictest25-21ksoftirqd/109:45:091
9225992823,3cyclictest9-21ksoftirqd/010:22:580
9225992823,3cyclictest9-21ksoftirqd/010:22:580
9225992823,3cyclictest9-21ksoftirqd/009:13:090
9225992823,3cyclictest9-21ksoftirqd/008:17:450
9225992822,4cyclictest9-21ksoftirqd/012:23:040
9225992822,4cyclictest9-21ksoftirqd/010:55:510
9225992822,4cyclictest9-21ksoftirqd/009:58:390
9225992822,4cyclictest9-21ksoftirqd/007:32:200
9225992822,3cyclictest9-21ksoftirqd/007:25:120
139391280,0ptp4l401ktimersoftd/309:20:563
922799270,25cyclictest32576-21kworker/2:010:05:212
9226992722,3cyclictest25-21ksoftirqd/108:16:461
9226992721,4cyclictest25-21ksoftirqd/109:10:021
9225992722,3cyclictest9-21ksoftirqd/012:35:240
9225992722,3cyclictest9-21ksoftirqd/011:45:220
9225992722,3cyclictest9-21ksoftirqd/011:20:050
9225992722,3cyclictest9-21ksoftirqd/009:51:360
9225992722,3cyclictest9-21ksoftirqd/007:55:510
9225992721,4cyclictest9-21ksoftirqd/009:02:500
9225992721,4cyclictest9-21ksoftirqd/008:55:120
9226992621,3cyclictest25-21ksoftirqd/112:05:181
9225992621,3cyclictest9-21ksoftirqd/011:39:200
9225992621,3cyclictest9-21ksoftirqd/010:01:110
139391260,0ptp4l401ktimersoftd/311:55:243
9228992519,4cyclictest41-21ksoftirqd/311:34:123
9225992520,3cyclictest9-21ksoftirqd/011:10:460
9225992520,3cyclictest9-21ksoftirqd/008:20:490
9225992520,3cyclictest9-21ksoftirqd/007:24:140
9225992519,4cyclictest9-21ksoftirqd/008:47:180
9226992419,3cyclictest25-21ksoftirqd/112:10:151
9226992419,3cyclictest25-21ksoftirqd/111:49:061
9226992419,3cyclictest25-21ksoftirqd/110:17:051
9226992419,3cyclictest25-21ksoftirqd/109:56:261
9225992419,3cyclictest9-21ksoftirqd/008:37:120
9226992318,3cyclictest25-21ksoftirqd/110:34:211
9225992319,2cyclictest9-21ksoftirqd/011:05:050
9225992116,3cyclictest9-21ksoftirqd/007:35:440
9225992014,4cyclictest9-21ksoftirqd/010:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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