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2026-06-17 - 22:32
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Wed Jun 17, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591239171,22phc2sys0-21swapper/307:05:503
160472207173,23sleep20-21swapper/207:08:052
160092206173,22sleep00-21swapper/007:07:350
162132205172,22sleep10-21swapper/107:09:371
139291680,1ptp4l24342-21iostat_ios07:25:183
287212570,3sleep00-21swapper/007:35:150
155892530,2sleep20-21swapper/209:20:232
322032520,2sleep30-21swapper/307:40:233
1653899445,23cyclictest0-21swapper/310:00:123
135191440,6getstats1653899cyclictest10:58:223
139291420,0ptp4l401ktimersoftd/311:10:423
139291420,0ptp4l401ktimersoftd/307:35:113
139291410,0ptp4l401ktimersoftd/312:18:503
139291410,0ptp4l401ktimersoftd/308:08:053
139291410,0ptp4l401ktimersoftd/307:49:553
139291400,0ptp4l401ktimersoftd/311:41:163
16538993932,4cyclictest17742-21egrep08:20:133
139291390,1ptp4l391rcuc/309:00:173
139291390,1ptp4l391rcuc/309:00:163
139291390,0ptp4l401ktimersoftd/310:25:013
16538993832,4cyclictest41-21ksoftirqd/309:57:233
16538993829,3cyclictest41-21ksoftirqd/309:20:373
16537993832,4cyclictest33-21ksoftirqd/211:03:422
16536993831,4cyclictest25-21ksoftirqd/107:15:461
16535993831,4cyclictest9-21ksoftirqd/011:23:340
1653599382,3cyclictest121rcu_preempt10:11:420
1653899372,23cyclictest0-21swapper/311:30:173
16537993732,3cyclictest33-21ksoftirqd/208:25:172
16537993732,3cyclictest33-21ksoftirqd/208:25:162
16537993731,4cyclictest33-21ksoftirqd/211:17:342
16537993731,4cyclictest33-21ksoftirqd/210:54:072
16537993731,4cyclictest33-21ksoftirqd/209:06:192
16537993731,4cyclictest33-21ksoftirqd/207:23:462
16536993733,2cyclictest25-21ksoftirqd/108:20:001
16536993731,4cyclictest25-21ksoftirqd/108:46:321
16536993731,4cyclictest25-21ksoftirqd/107:36:371
16536993731,3cyclictest25-21ksoftirqd/111:25:171
16536993731,3cyclictest25-21ksoftirqd/108:41:271
16536993730,5cyclictest25-21ksoftirqd/107:58:341
16536993730,4cyclictest25-21ksoftirqd/111:48:061
16536993730,4cyclictest25-21ksoftirqd/111:36:421
16536993730,4cyclictest25-21ksoftirqd/109:51:161
16536993730,4cyclictest25-21ksoftirqd/109:35:551
16536993730,4cyclictest25-21ksoftirqd/107:27:571
16535993731,4cyclictest9-21ksoftirqd/009:47:210
16535993731,3cyclictest9-21ksoftirqd/012:00:110
16535993731,3cyclictest9-21ksoftirqd/009:05:170
16538993631,3cyclictest41-21ksoftirqd/311:55:003
16538993631,3cyclictest41-21ksoftirqd/311:20:403
16538993631,3cyclictest41-21ksoftirqd/307:21:453
16538993630,4cyclictest41-21ksoftirqd/312:23:103
16538993630,4cyclictest41-21ksoftirqd/310:07:463
16538993613,20cyclictest15318-21/usr/sbin/munin08:15:183
16537993630,4cyclictest33-21ksoftirqd/210:30:482
16537993630,4cyclictest33-21ksoftirqd/208:09:392
16537993630,4cyclictest33-21ksoftirqd/207:58:192
16537993630,4cyclictest33-21ksoftirqd/207:53:512
16536993631,3cyclictest25-21ksoftirqd/111:20:001
16536993631,3cyclictest25-21ksoftirqd/110:44:351
16536993631,3cyclictest25-21ksoftirqd/110:05:001
16536993631,3cyclictest25-21ksoftirqd/109:25:171
16536993630,4cyclictest25-21ksoftirqd/110:38:531
16536993630,4cyclictest25-21ksoftirqd/108:09:311
16535993631,3cyclictest9-21ksoftirqd/009:20:110
16535993630,4cyclictest9-21ksoftirqd/010:34:550
16535993629,4cyclictest9-21ksoftirqd/010:58:420
16535993629,4cyclictest9-21ksoftirqd/008:23:370
139291360,1ptp4l0-21swapper/312:05:503
16538993529,4cyclictest41-21ksoftirqd/311:58:433
16538993529,4cyclictest41-21ksoftirqd/310:19:143
16538993529,4cyclictest41-21ksoftirqd/310:10:393
16538993529,4cyclictest41-21ksoftirqd/309:40:383
16538993529,4cyclictest41-21ksoftirqd/309:14:113
16538993529,4cyclictest41-21ksoftirqd/308:34:073
16538993529,4cyclictest41-21ksoftirqd/308:01:423
16537993530,3cyclictest33-21ksoftirqd/209:40:252
16537993530,3cyclictest33-21ksoftirqd/207:44:012
16537993529,4cyclictest33-21ksoftirqd/211:55:572
16537993529,4cyclictest33-21ksoftirqd/208:59:572
16537993529,4cyclictest33-21ksoftirqd/208:23:432
16537993529,4cyclictest33-21ksoftirqd/207:47:412
16537993529,4cyclictest33-21ksoftirqd/207:27:302
16537993529,3cyclictest33-21ksoftirqd/209:45:132
16537993528,5cyclictest33-21ksoftirqd/210:02:392
16536993529,4cyclictest25-21ksoftirqd/111:06:051
16536993529,4cyclictest25-21ksoftirqd/108:31:001
16536993529,3cyclictest25-21ksoftirqd/112:21:481
16536993528,4cyclictest25-21ksoftirqd/110:55:381
16536993528,4cyclictest25-21ksoftirqd/110:29:191
16535993529,4cyclictest9-21ksoftirqd/012:29:290
16535993529,4cyclictest9-21ksoftirqd/011:14:270
16535993529,4cyclictest9-21ksoftirqd/009:43:120
16535993529,4cyclictest9-21ksoftirqd/009:03:570
16535993529,4cyclictest9-21ksoftirqd/009:03:570
16535993529,3cyclictest9-21ksoftirqd/008:15:190
16535993528,4cyclictest9-21ksoftirqd/011:09:370
16538993429,3cyclictest41-21ksoftirqd/312:39:363
16538993429,3cyclictest41-21ksoftirqd/311:29:143
16538993429,3cyclictest41-21ksoftirqd/310:30:573
16538993429,3cyclictest41-21ksoftirqd/308:53:213
16538993428,4cyclictest41-21ksoftirqd/309:17:483
1653899340,4cyclictest217-21systemd-journal07:32:093
16537993429,3cyclictest33-21ksoftirqd/212:23:072
16537993429,3cyclictest33-21ksoftirqd/211:40:102
16537993429,3cyclictest33-21ksoftirqd/210:07:052
16537993428,4cyclictest33-21ksoftirqd/209:51:572
16537993428,4cyclictest33-21ksoftirqd/207:11:512
16537993428,3cyclictest33-21ksoftirqd/207:19:352
16536993429,3cyclictest25-21ksoftirqd/108:54:161
16536993428,4cyclictest25-21ksoftirqd/112:20:001
16536993428,4cyclictest25-21ksoftirqd/111:58:131
16536993428,4cyclictest25-21ksoftirqd/109:44:421
16536993428,4cyclictest25-21ksoftirqd/109:30:411
16536993428,4cyclictest25-21ksoftirqd/108:26:061
16536993428,4cyclictest25-21ksoftirqd/108:26:061
16536993428,4cyclictest25-21ksoftirqd/107:34:241
16536993428,4cyclictest25-21ksoftirqd/107:22:161
16536993427,4cyclictest25-21ksoftirqd/112:08:281
16536993427,4cyclictest25-21ksoftirqd/108:37:031
16536993427,4cyclictest25-21ksoftirqd/107:53:211
16535993428,4cyclictest9-21ksoftirqd/012:14:080
16535993428,4cyclictest9-21ksoftirqd/011:19:480
16535993428,3cyclictest9-21ksoftirqd/009:26:110
16535993427,4cyclictest9-21ksoftirqd/010:45:420
1653899337,23cyclictest15457-21grep11:35:253
16538993328,3cyclictest41-21ksoftirqd/312:33:313
16538993328,3cyclictest41-21ksoftirqd/312:02:353
16538993328,3cyclictest41-21ksoftirqd/309:54:163
16538993327,4cyclictest41-21ksoftirqd/311:47:523
16538993312,19cyclictest11849-21expr10:20:213
16538993311,20cyclictest27266-21/usr/sbin/munin08:40:143
16538993311,20cyclictest19364-21expr09:30:153
1653899330,4cyclictest30769-21strings08:45:243
1653899330,3cyclictest3533-21expr07:50:123
1653899330,3cyclictest32117-21cut11:05:013
1653899330,3cyclictest25061-21cstates08:35:133
16537993328,3cyclictest33-21ksoftirqd/211:22:582
16537993328,3cyclictest33-21ksoftirqd/210:38:422
16537993328,3cyclictest33-21ksoftirqd/209:01:502
16537993328,3cyclictest33-21ksoftirqd/209:01:502
16537993327,4cyclictest33-21ksoftirqd/212:39:022
16537993327,4cyclictest33-21ksoftirqd/211:25:522
16537993327,4cyclictest33-21ksoftirqd/211:08:032
16537993327,4cyclictest33-21ksoftirqd/210:14:512
16537993327,4cyclictest33-21ksoftirqd/208:19:302
16536993328,3cyclictest25-21ksoftirqd/111:30:131
16536993328,3cyclictest25-21ksoftirqd/110:30:111
16536993328,3cyclictest25-21ksoftirqd/109:46:491
16536993328,2cyclictest25-21ksoftirqd/111:15:011
16536993327,4cyclictest25-21ksoftirqd/110:24:491
16536993327,4cyclictest25-21ksoftirqd/108:57:161
16536993327,4cyclictest25-21ksoftirqd/108:12:401
16536993327,3cyclictest25-21ksoftirqd/110:09:131
16536993327,3cyclictest25-21ksoftirqd/107:40:171
16536993326,4cyclictest25-21ksoftirqd/112:35:021
16536993326,4cyclictest25-21ksoftirqd/110:47:081
16536993326,4cyclictest25-21ksoftirqd/109:56:531
16536993326,4cyclictest25-21ksoftirqd/108:00:101
16536993326,4cyclictest25-21ksoftirqd/107:47:391
16535993328,3cyclictest9-21ksoftirqd/012:38:380
16535993328,3cyclictest9-21ksoftirqd/011:46:240
16535993328,3cyclictest9-21ksoftirqd/009:56:240
16535993328,3cyclictest9-21ksoftirqd/009:39:130
16535993328,3cyclictest9-21ksoftirqd/008:50:380
16535993328,3cyclictest9-21ksoftirqd/007:11:330
16535993327,4cyclictest9-21ksoftirqd/009:54:390
16535993327,4cyclictest9-21ksoftirqd/008:14:300
16535993327,4cyclictest9-21ksoftirqd/007:27:560
16535993327,3cyclictest9-21ksoftirqd/010:35:350
16535993327,3cyclictest9-21ksoftirqd/010:20:110
16535993327,3cyclictest9-21ksoftirqd/010:09:500
16535993326,4cyclictest9-21ksoftirqd/011:40:180
16535993326,4cyclictest9-21ksoftirqd/010:28:010
16538993227,3cyclictest41-21ksoftirqd/310:51:553
16538993227,3cyclictest41-21ksoftirqd/309:07:493
16538993226,4cyclictest41-21ksoftirqd/307:18:213
16538993210,19cyclictest27980-21grep09:45:273
16537993227,3cyclictest33-21ksoftirqd/211:52:022
16537993227,3cyclictest33-21ksoftirqd/211:35:392
16537993227,3cyclictest33-21ksoftirqd/210:56:152
16537993227,3cyclictest33-21ksoftirqd/208:30:512
16537993226,4cyclictest33-21ksoftirqd/212:25:422
16537993226,4cyclictest33-21ksoftirqd/212:06:002
16537993226,3cyclictest33-21ksoftirqd/208:11:572
16537993225,4cyclictest33-21ksoftirqd/209:26:222
16536993227,3cyclictest25-21ksoftirqd/111:53:551
16536993225,4cyclictest25-21ksoftirqd/111:01:441
16535993227,3cyclictest9-21ksoftirqd/011:03:360
16535993227,3cyclictest9-21ksoftirqd/007:53:460
16535993226,4cyclictest9-21ksoftirqd/012:16:130
16535993226,4cyclictest9-21ksoftirqd/008:00:420
16535993226,4cyclictest9-21ksoftirqd/007:31:010
16535993226,3cyclictest9-21ksoftirqd/007:48:480
16535993225,4cyclictest9-21ksoftirqd/009:30:160
1653899316,23cyclictest18005-21grep10:35:153
16538993126,3cyclictest41-21ksoftirqd/308:55:093
16538993126,3cyclictest41-21ksoftirqd/307:10:323
16538993125,4cyclictest41-21ksoftirqd/311:07:403
16538993125,4cyclictest41-21ksoftirqd/310:46:543
1653899311,28cyclictest16717-21apt-get09:25:103
16537993126,3cyclictest33-21ksoftirqd/210:41:432
16537993126,3cyclictest33-21ksoftirqd/209:12:202
16537993126,3cyclictest33-21ksoftirqd/208:48:562
16537993126,3cyclictest33-21ksoftirqd/208:42:542
16537993126,3cyclictest33-21ksoftirqd/208:04:162
16537993126,3cyclictest33-21ksoftirqd/207:38:172
16537993125,4cyclictest33-21ksoftirqd/210:23:142
16536993126,3cyclictest25-21ksoftirqd/110:52:161
16536993126,3cyclictest25-21ksoftirqd/110:15:181
16536993126,3cyclictest25-21ksoftirqd/109:14:091
16536993124,4cyclictest25-21ksoftirqd/108:22:501
16535993126,3cyclictest9-21ksoftirqd/012:20:180
16535993126,3cyclictest9-21ksoftirqd/010:15:120
16535993126,3cyclictest9-21ksoftirqd/008:58:480
16535993125,3cyclictest9-21ksoftirqd/012:06:540
16535993125,3cyclictest9-21ksoftirqd/008:46:440
16535993124,4cyclictest9-21ksoftirqd/007:41:160
139291310,14ptp4l1653899cyclictest09:36:473
1653899307,20cyclictest6191-21if_enp1s007:55:163
16538993025,3cyclictest41-21ksoftirqd/308:29:593
16538993025,3cyclictest41-21ksoftirqd/308:29:593
16538993023,4cyclictest41-21ksoftirqd/308:12:493
16537993025,3cyclictest33-21ksoftirqd/212:32:242
16537993025,3cyclictest33-21ksoftirqd/208:36:592
16537993025,3cyclictest33-21ksoftirqd/207:31:282
16537993024,4cyclictest33-21ksoftirqd/210:26:072
16537993024,4cyclictest33-21ksoftirqd/209:56:582
16537993024,4cyclictest33-21ksoftirqd/209:38:532
16537993024,3cyclictest33-21ksoftirqd/210:15:202
16535993024,3cyclictest9-21ksoftirqd/008:30:070
1653899296,20cyclictest4824-21expr11:15:133
1653899296,20cyclictest31338-21forks12:10:143
16538992924,3cyclictest41-21ksoftirqd/312:26:483
16538992924,3cyclictest41-21ksoftirqd/310:44:153
16537992924,3cyclictest33-21ksoftirqd/208:54:132
16537992923,4cyclictest33-21ksoftirqd/211:45:422
16536992924,3cyclictest25-21ksoftirqd/112:29:291
16536992923,4cyclictest25-21ksoftirqd/109:21:151
16535992923,3cyclictest9-21ksoftirqd/007:20:070
16535992922,4cyclictest9-21ksoftirqd/008:05:440
16537992822,4cyclictest33-21ksoftirqd/212:03:232
16537992816,9cyclictest33-21ksoftirqd/212:15:242
16536992823,3cyclictest25-21ksoftirqd/112:30:571
16536992823,3cyclictest25-21ksoftirqd/112:05:001
16536992823,3cyclictest25-21ksoftirqd/107:10:111
16536992822,4cyclictest25-21ksoftirqd/111:44:171
16536992822,3cyclictest25-21ksoftirqd/111:23:411
16535992823,3cyclictest9-21ksoftirqd/011:53:300
16535992823,3cyclictest9-21ksoftirqd/008:36:450
16535992823,3cyclictest9-21ksoftirqd/007:16:510
16535992822,4cyclictest9-21ksoftirqd/009:14:080
16537992722,3cyclictest33-21ksoftirqd/209:33:042
16537992722,3cyclictest33-21ksoftirqd/209:18:422
16537992721,4cyclictest33-21ksoftirqd/211:33:142
16536992722,3cyclictest25-21ksoftirqd/109:19:031
16535992721,4cyclictest9-21ksoftirqd/010:50:080
16537992620,4cyclictest33-21ksoftirqd/212:11:422
16536992620,3cyclictest25-21ksoftirqd/112:10:021
16535992621,3cyclictest9-21ksoftirqd/011:34:490
16535992620,4cyclictest9-21ksoftirqd/010:00:450
16535992620,3cyclictest9-21ksoftirqd/012:30:430
16535992620,3cyclictest9-21ksoftirqd/007:55:170
16537992520,3cyclictest33-21ksoftirqd/211:12:242
16537992520,3cyclictest33-21ksoftirqd/210:45:122
16536992521,3cyclictest25-21ksoftirqd/109:00:191
16536992521,3cyclictest25-21ksoftirqd/109:00:191
16536992520,3cyclictest25-21ksoftirqd/109:05:191
16535992520,3cyclictest9-21ksoftirqd/009:16:430
16535992520,3cyclictest9-21ksoftirqd/008:44:110
16535992519,4cyclictest9-21ksoftirqd/011:36:530
16535992518,5cyclictest9-21ksoftirqd/008:25:340
16535992518,5cyclictest9-21ksoftirqd/008:25:330
16535992419,3cyclictest9-21ksoftirqd/011:27:150
16536992318,3cyclictest25-21ksoftirqd/110:10:161
16535992116,3cyclictest9-21ksoftirqd/011:55:110
16535991712,3cyclictest21582-21rt-features10:40:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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