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2026-09-13 - 07:18
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Sun Sep 13, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249652740,1sleep10-21swapper/122:25:021
2109326754,8sleep00-21swapper/019:07:440
2065626754,8sleep10-21swapper/119:03:451
21290993310,8cyclictest0-21swapper/123:58:331
21289993110,5cyclictest0-21swapper/022:17:320
21289992926,2cyclictest30616-21ssh23:19:520
2128999278,18cyclictest0-21swapper/021:36:390
21290992625,1cyclictest0-21swapper/121:01:571
2129099260,25cyclictest0-21swapper/122:39:541
21290992522,1cyclictest20823-21apache222:52:171
21290992521,3cyclictest20823-21apache223:01:391
21290992510,7cyclictest0-21swapper/121:08:081
21290992510,10cyclictest0-21swapper/122:03:071
21289992524,1cyclictest0-21swapper/000:32:290
21289992510,8cyclictest0-21swapper/019:43:060
21290992420,2cyclictest705-21ntpd00:26:141
21290992419,4cyclictest20762-21ssh23:06:191
21290992418,5cyclictest705-21ntpd22:47:101
21290992410,6cyclictest0-21swapper/123:28:351
21290992410,13cyclictest0-21swapper/123:52:571
2129099240,2cyclictest15274-21ssh22:11:151
21289992421,2cyclictest1199-21runrttasks22:29:460
21289992418,4cyclictest0-21swapper/021:58:110
21289992410,10cyclictest0-21swapper/020:04:100
2129099235,11cyclictest0-21swapper/122:33:081
21289992317,2cyclictest20803-21apache223:04:080
21289992311,4cyclictest0-21swapper/021:38:100
21289992310,4cyclictest0-21swapper/023:08:120
2129099225,8cyclictest0-21swapper/123:13:091
2129099223,13cyclictest0-21swapper/122:31:221
21290992221,1cyclictest20823-21apache223:52:231
21290992221,1cyclictest20823-21apache223:52:231
21290992218,3cyclictest20823-21apache221:20:341
21290992210,9cyclictest0-21swapper/100:21:281
21290992210,7cyclictest0-21swapper/122:18:411
2129099220,3cyclictest0-21swapper/122:56:071
2128999225,8cyclictest0-21swapper/020:23:110
2128999224,11cyclictest0-21swapper/020:33:060
2128999223,13cyclictest0-21swapper/022:18:140
21289992210,8cyclictest0-21swapper/000:07:540
21289992210,5cyclictest0-21swapper/022:23:490
21289992210,5cyclictest0-21swapper/021:13:370
21289992210,1cyclictest0-21swapper/023:51:390
21289992210,1cyclictest0-21swapper/023:51:390
2129099219,11cyclictest231ktimersoftd/100:28:471
21290992121,0cyclictest0-21swapper/121:42:511
21290992119,1cyclictest705-21ntpd20:50:221
21290992112,2cyclictest21287-21cyclictest00:13:081
21290992110,5cyclictest0-21swapper/121:29:411
21290992110,5cyclictest0-21swapper/121:23:431
21290992110,0cyclictest0-21swapper/123:32:591
2128999216,9cyclictest0-21swapper/022:48:200
2128999215,10cyclictest0-21swapper/021:08:090
2128999212,3cyclictest0-21swapper/000:19:090
21289992119,1cyclictest0-21swapper/020:18:130
21289992111,6cyclictest20803-21apache221:19:520
21289992110,8cyclictest0-21swapper/019:33:140
21289992110,6cyclictest0-21swapper/023:01:080
21289992110,11cyclictest0-21swapper/000:35:460
1384022110,0sleep10-21swapper/120:13:011
281662200,0sleep10-21swapper/100:03:141
2129099206,9cyclictest0-21swapper/121:43:111
2129099205,12cyclictest0-21swapper/120:43:081
2129099202,10cyclictest0-21swapper/120:08:071
21290992010,8cyclictest0-21swapper/119:53:291
21290992010,6cyclictest0-21swapper/121:33:211
21290992010,5cyclictest0-21swapper/119:43:131
21290992010,4cyclictest0-21swapper/120:34:081
2128999206,7cyclictest0-21swapper/000:23:050
21289992011,5cyclictest0-21swapper/023:33:020
21289992010,7cyclictest0-21swapper/022:44:070
21289992010,7cyclictest0-21swapper/021:48:200
21289992010,6cyclictest0-21swapper/019:13:130
21289992010,6cyclictest0-21swapper/000:08:100
43021910,0sleep00-21swapper/021:02:310
2129099193,9cyclictest0-21swapper/119:42:541
2129099193,4cyclictest0-21swapper/123:23:051
2129099193,10cyclictest16944-21ntp_states22:13:121
2129099192,11cyclictest0-21swapper/123:18:131
21290991911,7cyclictest0-21swapper/121:53:081
21290991910,7cyclictest0-21swapper/121:58:081
21290991910,6cyclictest0-21swapper/119:23:121
21290991910,2cyclictest0-21swapper/121:51:241
21290991910,2cyclictest0-21swapper/119:58:091
21290991910,1cyclictest0-21swapper/123:42:211
2129099190,12cyclictest0-21swapper/123:08:081
2129099190,10cyclictest0-21swapper/100:36:301
2128999199,4cyclictest1866-21timerwakeupswit21:03:150
2128999197,7cyclictest0-21swapper/023:43:060
2128999195,6cyclictest1199-21runrttasks22:56:170
2128999193,7cyclictest0-21swapper/019:48:060
2128999192,12cyclictest0-21swapper/021:28:150
21289991913,4cyclictest20803-21apache200:14:170
2128999191,10cyclictest23826-21taskset23:58:070
21289991910,6cyclictest0-21swapper/023:27:290
21289991910,5cyclictest0-21swapper/023:14:460
21289991910,3cyclictest0-21swapper/023:32:050
2128999190,0cyclictest0-21swapper/022:10:350
1611621910,0sleep10-21swapper/123:46:481
21290991816,1cyclictest0-21swapper/120:53:071
21290991812,3cyclictest0-21swapper/119:28:111
2129099180,10cyclictest0-21swapper/120:07:181
2128999183,12cyclictest12459-21cron22:07:550
2128999183,10cyclictest0-21swapper/019:23:090
21289991816,1cyclictest20823-21apache221:27:450
21289991813,2cyclictest81ktimersoftd/020:57:540
21289991811,3cyclictest0-21swapper/021:53:180
21289991811,1cyclictest100150irq/106-eth1-rx22:39:380
21289991810,4cyclictest0-21swapper/019:53:080
21289991810,3cyclictest0-21swapper/020:48:060
21289991810,2cyclictest0-21swapper/023:53:090
2128999180,6cyclictest0-21swapper/021:43:550
595421710,0sleep10-21swapper/119:52:181
2462221710,0sleep10-21swapper/119:14:201
2129099176,7cyclictest0-21swapper/120:18:091
2129099174,7cyclictest0-21swapper/119:18:151
2129099172,1cyclictest31666-21ntp_states19:33:111
21290991713,0cyclictest21060-21sshd20:29:191
21290991710,1cyclictest0-21swapper/121:13:071
2128999173,7cyclictest0-21swapper/020:38:110
2128999172,12cyclictest0-21swapper/019:18:110
21289991716,1cyclictest11503-21ssh23:38:480
21289991710,4cyclictest0-21swapper/019:28:070
21289991710,4cyclictest0-21swapper/019:08:120
21289991710,3cyclictest0-21swapper/022:34:130
2129099163,6cyclictest0-21swapper/100:08:111
2129099161,8cyclictest0-21swapper/119:08:081
21290991610,2cyclictest0-21swapper/120:38:031
2129099160,3cyclictest0-21swapper/121:03:061
21289991610,3cyclictest0-21swapper/020:43:070
2128999154,9cyclictest0-21swapper/020:08:060
2128999154,7cyclictest0-21swapper/020:13:160
2128999154,6cyclictest0-21swapper/019:58:040
2128999152,7cyclictest20844-21ls20:28:150
21289991510,2cyclictest0-21swapper/019:39:050
21290991410,1cyclictest0-21swapper/120:23:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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