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2026-07-20 - 17:52
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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 rackcslot2.osadl.org (updated Mon Jul 20, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2515227551,19sleep00-21swapper/007:04:550
212682730,0sleep10-21swapper/111:26:541
2514427259,8sleep10-21swapper/107:04:501
302532670,0sleep10-21swapper/110:16:011
214262640,0sleep00-21swapper/010:04:160
25666994410,33cyclictest0-21swapper/109:04:091
25666994310,22cyclictest0-21swapper/108:43:421
25666994210,28cyclictest0-21swapper/112:32:421
25666994110,30cyclictest0-21swapper/112:28:211
25666994110,29cyclictest0-21swapper/110:05:561
25666994010,29cyclictest0-21swapper/110:02:441
25666994010,29cyclictest0-21swapper/108:18:331
25666993911,27cyclictest0-21swapper/110:37:081
25666993910,28cyclictest0-21swapper/110:18:281
25666993812,25cyclictest0-21swapper/109:55:431
25666993811,26cyclictest0-21swapper/108:08:341
25666993810,28cyclictest0-21swapper/110:23:481
25666993810,28cyclictest0-21swapper/109:33:231
25666993810,27cyclictest0-21swapper/110:38:391
25666993810,27cyclictest0-21swapper/109:30:361
25666993810,25cyclictest0-21swapper/110:10:091
25666993810,24cyclictest0-21swapper/110:56:491
25666993715,22cyclictest0-21swapper/107:58:161
25666993712,24cyclictest0-21swapper/111:30:171
25666993711,23cyclictest0-21swapper/111:17:311
25666993710,27cyclictest0-21swapper/111:08:301
25666993710,27cyclictest0-21swapper/111:08:301
25666993710,26cyclictest0-21swapper/112:14:251
25666993710,26cyclictest0-21swapper/112:12:251
25666993710,26cyclictest0-21swapper/109:22:451
25666993610,26cyclictest0-21swapper/111:48:091
25666993519,15cyclictest0-21swapper/109:43:351
25666993510,8cyclictest0-21swapper/109:48:521
25666993510,24cyclictest0-21swapper/111:21:061
25666993510,24cyclictest0-21swapper/109:40:361
25666993510,24cyclictest0-21swapper/109:08:341
25666993510,24cyclictest0-21swapper/107:22:131
25666993510,24cyclictest0-21swapper/107:11:461
25666993510,23cyclictest0-21swapper/111:39:281
25666993510,22cyclictest27871-21ssh11:33:561
25665993511,15cyclictest100250irq/107-eth1-rx09:22:180
2566699345,28cyclictest6651-21chrt07:40:491
25666993410,9cyclictest0-21swapper/111:04:551
25666993410,23cyclictest0-21swapper/112:00:231
25666993410,23cyclictest0-21swapper/109:25:021
25666993310,23cyclictest0-21swapper/112:22:121
25666993310,22cyclictest0-21swapper/112:36:071
25666993310,22cyclictest0-21swapper/112:05:281
25666993310,22cyclictest0-21swapper/110:51:431
25666993310,22cyclictest0-21swapper/108:56:051
25666993310,22cyclictest0-21swapper/107:45:351
25666993310,22cyclictest0-21swapper/107:33:361
25666993310,19cyclictest0-21swapper/108:03:221
25666993212,18cyclictest0-21swapper/111:00:401
25666993210,21cyclictest0-21swapper/111:55:401
25666993210,21cyclictest0-21swapper/111:51:461
25666993210,21cyclictest0-21swapper/109:13:381
25666993210,21cyclictest0-21swapper/108:48:361
25666993210,17cyclictest0-21swapper/110:29:071
25666993110,20cyclictest0-21swapper/107:28:341
25666993010,17cyclictest0-21swapper/108:58:361
25666992917,11cyclictest0-21swapper/108:03:141
25666992910,4cyclictest0-21swapper/108:36:001
25666992910,3cyclictest0-21swapper/110:46:411
25666992910,18cyclictest0-21swapper/107:25:531
25666992810,15cyclictest0-21swapper/108:33:211
2566599281,25cyclictest24956-21taskset12:12:030
25665992810,0cyclictest0-21swapper/010:31:060
25666992710,17cyclictest0-21swapper/107:13:411
25666992710,16cyclictest0-21swapper/108:14:101
25665992710,9cyclictest0-21swapper/012:27:560
2566699251,23cyclictest28765-21latency08:38:381
25666992510,14cyclictest0-21swapper/107:49:321
25666992510,12cyclictest0-21swapper/108:23:341
25665992525,0cyclictest0-21swapper/009:02:510
25665992521,3cyclictest0-21swapper/011:41:330
25665992520,4cyclictest3107-21apache210:21:140
25665992510,1cyclictest0-21swapper/008:46:330
25665992421,2cyclictest81ktimersoftd/012:14:190
25665992410,8cyclictest0-21swapper/011:59:410
25665992410,7cyclictest0-21swapper/009:16:120
25665992410,2cyclictest0-21swapper/011:17:350
25665992410,10cyclictest0-21swapper/011:22:130
25665992310,8cyclictest0-21swapper/008:03:340
25665992310,6cyclictest0-21swapper/009:23:520
25665992310,1cyclictest0-21swapper/012:18:390
2566599230,3cyclictest0-21swapper/009:39:330
2566599230,19cyclictest0-21swapper/012:08:020
25665992221,1cyclictest3124-21apache209:30:490
25665992219,2cyclictest0-21swapper/007:48:390
25665992218,3cyclictest24479-21snmpd10:02:260
25665992216,4cyclictest802-21apache211:34:060
2566599221,5cyclictest0-21swapper/009:37:470
25665992211,6cyclictest12656-21latency_hist07:58:220
25665992210,6cyclictest0-21swapper/007:43:340
2566599219,10cyclictest20775-21kworker/u4:210:48:120
25665992121,0cyclictest0-21swapper/008:23:340
25665992117,2cyclictest3124-21apache209:43:250
2566599211,6cyclictest0-21swapper/011:02:420
25665992111,9cyclictest3124-21apache211:50:260
25665992111,7cyclictest0-21swapper/007:23:320
25665992111,5cyclictest3107-21apache209:48:380
25665992110,8cyclictest0-21swapper/010:14:040
25665992110,6cyclictest0-21swapper/010:09:340
25665992110,4cyclictest0-21swapper/011:23:420
25665992110,2cyclictest0-21swapper/007:38:340
2566599204,12cyclictest0-21swapper/012:28:400
2566599203,11cyclictest0-21swapper/011:53:430
25665992020,0cyclictest0-21swapper/010:38:470
25665992017,2cyclictest26009-21munin-node09:08:520
25665992016,2cyclictest0-21swapper/007:18:370
25665992012,3cyclictest0-21swapper/010:51:470
25665992010,5cyclictest0-21swapper/011:29:490
1481522010,0sleep00-21swapper/009:57:040
2566599195,1cyclictest0-21swapper/011:08:360
2566599195,1cyclictest0-21swapper/011:08:360
25665991910,6cyclictest0-21swapper/007:58:380
25665991910,3cyclictest100250irq/107-eth1-rx10:33:240
25665991910,3cyclictest0-21swapper/008:28:340
2566599190,2cyclictest0-21swapper/011:47:320
2566599183,9cyclictest0-21swapper/008:33:380
25665991816,1cyclictest3107-21apache210:23:320
25665991810,2cyclictest0-21swapper/010:54:540
25665991810,2cyclictest0-21swapper/009:03:390
25665991810,2cyclictest0-21swapper/007:28:340
307221710,0sleep00-21swapper/008:56:100
2566599175,5cyclictest0-21swapper/008:13:380
25665991717,0cyclictest25663-21cyclictest12:34:370
25665991716,0cyclictest0-21swapper/011:03:410
25665991710,2cyclictest0-21swapper/007:33:320
25665991710,1cyclictest0-21swapper/008:41:070
2566599163,7cyclictest0-21swapper/008:18:410
1830521610,1sleep00-21swapper/008:12:280
2566599154,5cyclictest28343-21/usr/sbin/munin07:13:400
25665991510,2cyclictest0-21swapper/007:08:340
2566599150,7cyclictest0-21swapper/008:48:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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