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2026-03-23 - 00:34
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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 rackcslot2.osadl.org (updated Sun Mar 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166082730,1sleep10-21swapper/110:29:201
829826957,8sleep10-21swapper/107:04:581
285182650,0sleep128521-21cut11:29:331
851026149,8sleep00-21swapper/007:07:120
98682340,0sleep00-21swapper/007:09:400
8898993333,0cyclictest0-21swapper/012:04:050
8898992928,0cyclictest0-21swapper/009:40:260
8898992819,8cyclictest18804-21apache212:37:260
8898992810,2cyclictest0-21swapper/011:43:060
8898992725,1cyclictest0-21swapper/011:14:130
17982270,1sleep10-21swapper/109:24:251
8899992626,0cyclictest0-21swapper/110:18:351
8899992623,2cyclictest11260-21idleruntime-cro08:39:211
8899992613,6cyclictest100250irq/107-eth1-rx09:48:341
889999250,0cyclictest0-21swapper/107:10:001
8898992524,1cyclictest0-21swapper/011:34:040
8898992510,7cyclictest0-21swapper/011:45:590
8899992420,2cyclictest22825-21diskmemload12:34:361
889999241,2cyclictest0-21swapper/111:19:381
8899992410,8cyclictest0-21swapper/112:03:161
889899243,20cyclictest0-21swapper/010:19:350
8898992420,4cyclictest18804-21apache209:19:290
8898992419,4cyclictest18790-21apache210:06:220
889899241,6cyclictest32650-21ls10:49:400
889999237,15cyclictest0-21swapper/111:57:301
889999232,10cyclictest0-21swapper/108:40:151
8899992320,2cyclictest231ktimersoftd/109:49:321
8899992320,1cyclictest231ktimersoftd/112:04:561
8899992310,7cyclictest0-21swapper/110:11:301
8899992310,5cyclictest0-21swapper/111:02:451
8898992321,1cyclictest26169-21ssh09:13:210
8898992315,7cyclictest18316-1kworker/u5:209:54:510
8898992314,6cyclictest18790-21apache210:03:170
889999225,9cyclictest0-21swapper/112:32:591
889999223,14cyclictest0-21swapper/107:19:301
889999222,13cyclictest0-21swapper/109:34:351
8899992220,1cyclictest0-21swapper/111:09:341
8899992210,7cyclictest0-21swapper/110:00:071
8899992210,5cyclictest100150irq/106-eth1-rx11:28:501
889899222,19cyclictest0-21swapper/012:10:470
8898992221,1cyclictest0-21swapper/011:57:190
8898992215,4cyclictest18790-21apache208:49:160
8898992211,5cyclictest0-21swapper/008:14:410
8898992211,5cyclictest0-21swapper/008:14:410
8898992210,7cyclictest0-21swapper/010:38:120
8898992210,4cyclictest0-21swapper/009:44:400
8898992210,4cyclictest0-21swapper/008:09:330
8898992210,4cyclictest0-21swapper/007:29:310
8898992210,3cyclictest0-21swapper/010:54:390
8898992210,3cyclictest0-21swapper/009:24:310
889999216,9cyclictest0-21swapper/110:39:351
889999215,12cyclictest0-21swapper/112:24:411
889999214,9cyclictest0-21swapper/108:54:351
889999214,11cyclictest0-21swapper/111:39:321
889999213,13cyclictest0-21swapper/107:34:201
889999212,5cyclictest31680-21/usr/sbin/munin12:19:371
8899992118,2cyclictest1199-21runrttasks10:37:151
8899992115,5cyclictest18804-21apache212:12:381
8899992115,4cyclictest9925-21apache_volume11:04:321
889999211,3cyclictest0-21swapper/112:14:371
8899992110,7cyclictest0-21swapper/108:24:311
8899992110,6cyclictest0-21swapper/111:49:561
8899992110,5cyclictest636-21nscd09:19:171
8899992110,4cyclictest0-21swapper/108:29:351
8899992110,2cyclictest0-21swapper/107:44:381
889999210,20cyclictest0-21swapper/110:45:241
889899215,9cyclictest0-21swapper/012:34:110
889899214,8cyclictest0-21swapper/007:49:320
889899214,7cyclictest0-21swapper/010:39:410
889899212,18cyclictest0-21swapper/010:59:410
889899212,12cyclictest13186-21perf08:44:200
889899212,12cyclictest0-21swapper/010:24:340
8898992120,1cyclictest81ktimersoftd/010:14:400
8898992119,0cyclictest0-21swapper/010:47:290
8898992118,2cyclictest18804-21apache211:23:070
889899211,14cyclictest0-21swapper/012:16:300
8898992110,5cyclictest0-21swapper/009:34:350
8898992110,4cyclictest0-21swapper/009:34:150
8898992110,2cyclictest0-21swapper/008:54:340
722322110,0sleep10-21swapper/109:30:331
889999205,7cyclictest0-21swapper/110:54:311
889999203,10cyclictest0-21swapper/110:49:331
889999202,8cyclictest31713-21apache_volume11:34:321
8899992014,3cyclictest18804-21apache211:45:571
8899992010,7cyclictest0-21swapper/109:54:361
8899992010,5cyclictest0-21swapper/110:30:031
8899992010,4cyclictest0-21swapper/110:06:471
8899992010,4cyclictest0-21swapper/108:09:301
8899992010,3cyclictest0-21swapper/109:04:341
889899205,7cyclictest0-21swapper/007:39:320
889899205,10cyclictest0-21swapper/007:24:420
889899203,10cyclictest0-21swapper/011:04:360
8898992015,4cyclictest18804-21apache212:04:220
8898992011,5cyclictest0-21swapper/012:24:400
8898992010,7cyclictest0-21swapper/011:24:420
8898992010,6cyclictest0-21swapper/011:50:410
8898992010,5cyclictest0-21swapper/009:15:520
8898992010,4cyclictest0-21swapper/007:14:330
2438522010,0sleep00-21swapper/007:48:410
1636922010,0sleep10-21swapper/107:28:091
889999195,9cyclictest0-21swapper/107:14:391
889999193,9cyclictest0-21swapper/108:04:331
889999191,3cyclictest21566-21ntpq07:39:381
8899991910,6cyclictest0-21swapper/111:15:411
8899991910,3cyclictest0-21swapper/109:41:121
8899991910,2cyclictest0-21swapper/107:49:331
889899195,5cyclictest0-21swapper/010:29:330
889899194,7cyclictest0-21swapper/008:34:370
889899193,10cyclictest0-21swapper/008:24:400
889899191,7cyclictest0-21swapper/008:29:330
8898991910,8cyclictest0-21swapper/012:22:570
8898991910,3cyclictest0-21swapper/011:34:320
8898991910,2cyclictest0-21swapper/008:01:230
2166221910,0sleep00-21swapper/009:49:450
889999183,11cyclictest0-21swapper/108:44:411
8899991810,8cyclictest100250irq/107-eth1-rx10:19:221
8899991810,4cyclictest0-21swapper/108:01:381
889999180,7cyclictest0-21swapper/109:09:401
889899187,5cyclictest15880-21ls08:49:370
889899183,7cyclictest0-21swapper/008:04:340
8898991810,4cyclictest0-21swapper/010:13:570
889899180,17cyclictest0-21swapper/008:24:060
352721810,2sleep10-21swapper/108:18:571
352721810,2sleep10-21swapper/108:18:571
889999174,4cyclictest19151-21/usr/sbin/munin08:59:321
8899991710,4cyclictest0-21swapper/108:49:331
889899174,6cyclictest0-21swapper/007:34:320
889899173,9cyclictest0-21swapper/009:04:340
8898991710,4cyclictest0-21swapper/011:14:310
174112170,0sleep10-21swapper/107:29:361
889999161,8cyclictest1632-21munin-run09:24:201
8899991612,3cyclictest231ktimersoftd/107:54:391
889899164,7cyclictest0-21swapper/007:54:330
889899161,9cyclictest0-21swapper/008:59:310
8898991610,2cyclictest0-21swapper/007:22:530
889999151,8cyclictest0-21swapper/108:19:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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