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2026-09-04 - 22:42
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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 Fri Sep 04, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
397327057,8sleep10-21swapper/107:03:021
295552690,1sleep00-21swapper/010:06:520
570026654,8sleep00-21swapper/007:07:390
326972650,0sleep10-21swapper/110:10:391
268942600,0sleep00-21swapper/012:18:150
5910993532,2cyclictest636-21nscd10:57:210
5910993416,16cyclictest25140-21kworker/u4:010:00:560
5911993333,0cyclictest0-21swapper/112:16:551
5911993010,0cyclictest0-21swapper/109:16:041
5910993018,11cyclictest0-21swapper/010:48:020
5910992710,16cyclictest0-21swapper/008:28:180
5910992710,11cyclictest0-21swapper/011:50:430
591099270,6cyclictest81ktimersoftd/009:03:150
5910992626,0cyclictest0-21swapper/012:11:390
5910992620,4cyclictest81ktimersoftd/011:43:120
5910992610,7cyclictest0-21swapper/009:40:490
5911992525,0cyclictest0-21swapper/111:48:001
5911992525,0cyclictest0-21swapper/109:47:221
5910992522,0cyclictest0-21swapper/009:22:450
5911992422,0cyclictest0-21swapper/108:21:521
5911992410,7cyclictest0-21swapper/107:25:431
5910992423,0cyclictest0-21swapper/009:53:160
591099241,9cyclictest0-21swapper/011:19:360
5910992414,5cyclictest0-21swapper/012:06:020
591099241,12cyclictest23991-21tune2fs09:13:100
5910992410,6cyclictest0-21swapper/011:13:070
5910992410,10cyclictest0-21swapper/012:27:370
5911992322,0cyclictest0-21swapper/110:06:361
5911992310,9cyclictest0-21swapper/107:08:111
591099235,9cyclictest0-21swapper/012:28:100
5910992310,7cyclictest0-21swapper/010:58:540
591099230,20cyclictest0-21swapper/010:26:060
5911992216,4cyclictest0-21swapper/111:02:011
5911992211,10cyclictest0-21swapper/110:53:111
5911992210,8cyclictest15755-21apache209:29:421
5911992210,7cyclictest0-21swapper/111:32:251
5911992210,4cyclictest0-21swapper/111:39:281
5911992210,4cyclictest0-21swapper/111:36:501
5911992210,10cyclictest0-21swapper/112:35:071
591199220,15cyclictest0-21swapper/110:13:111
591099227,5cyclictest636-21nscd10:13:460
591099227,4cyclictest0-21swapper/010:18:150
591099227,14cyclictest9047-21kworker/u4:110:46:190
5910992215,4cyclictest15755-21apache211:10:160
5910992211,4cyclictest0-21swapper/011:04:490
5910992210,6cyclictest0-21swapper/008:33:180
5910992210,4cyclictest0-21swapper/008:58:120
5910992210,2cyclictest0-21swapper/008:48:110
5910992210,2cyclictest0-21swapper/007:12:480
591099220,21cyclictest6974-21ssh12:36:120
591099220,21cyclictest1625-21ssh09:27:520
591099220,11cyclictest0-21swapper/008:19:180
591199219,5cyclictest5300-21ntp_states08:28:161
5911992119,1cyclictest29464-21ssh09:20:051
5911992116,1cyclictest231ktimersoftd/109:08:121
5911992113,4cyclictest15753-21apache209:52:521
5911992110,7cyclictest0-21swapper/107:13:161
5911992110,4cyclictest0-21swapper/107:28:091
591199210,18cyclictest0-21swapper/107:19:501
591099219,5cyclictest7-21ksoftirqd/007:39:380
591099215,8cyclictest0-21swapper/011:38:120
5910992119,1cyclictest7-21ksoftirqd/007:17:580
5910992118,2cyclictest1199-21runrttasks07:27:410
5910992113,6cyclictest15753-21apache212:13:020
5910992111,4cyclictest0-21swapper/009:37:590
5910992110,5cyclictest0-21swapper/007:33:120
5910992110,4cyclictest0-21swapper/010:38:050
5910992110,4cyclictest0-21swapper/010:30:100
5910992110,0cyclictest0-21swapper/011:28:150
591199205,9cyclictest0-21swapper/112:08:171
591199204,12cyclictest0-21swapper/109:58:101
591199202,9cyclictest0-21swapper/110:48:151
5911992018,1cyclictest2071-21switchtime12:28:161
5911992015,4cyclictest15753-21apache211:23:041
5911992011,3cyclictest0-21swapper/111:18:111
5911992010,7cyclictest231ktimersoftd/109:34:261
5911992010,4cyclictest0-21swapper/108:43:031
591199200,4cyclictest0-21swapper/110:35:071
591099205,8cyclictest0-21swapper/009:28:110
591099203,8cyclictest0-21swapper/007:28:140
5910992019,1cyclictest15753-21apache211:23:360
591099201,5cyclictest0-21swapper/009:08:180
5910992010,5cyclictest0-21swapper/007:58:120
5910992010,3cyclictest0-21swapper/012:00:190
591099200,1cyclictest0-21swapper/010:08:270
591199192,10cyclictest0-21swapper/112:23:151
5911991918,1cyclictest0-21swapper/107:38:131
5911991913,4cyclictest15755-21apache211:59:561
5911991910,6cyclictest25140-21kworker/u4:009:55:441
5911991910,5cyclictest0-21swapper/108:48:101
5911991910,4cyclictest0-21swapper/109:27:101
5911991910,3cyclictest0-21swapper/109:38:101
5911991910,3cyclictest0-21swapper/108:03:161
5911991910,3cyclictest0-21swapper/107:58:111
5911991910,2cyclictest0-21swapper/112:03:401
591199190,15cyclictest0-21swapper/108:26:021
591099199,6cyclictest0-21swapper/007:53:110
591099195,8cyclictest0-21swapper/009:43:080
591099195,10cyclictest0-21swapper/007:18:180
591099193,7cyclictest10151-21awk08:42:590
5910991918,1cyclictest7-21ksoftirqd/011:36:100
5910991910,3cyclictest0-21swapper/010:33:120
5910991910,3cyclictest0-21swapper/007:48:180
5910991910,2cyclictest0-21swapper/008:23:110
591199183,6cyclictest19768-21diskmemload10:38:021
591199182,9cyclictest0-21swapper/109:03:111
591199182,12cyclictest0-21swapper/107:53:121
5911991818,0cyclictest0-21swapper/108:38:171
5911991812,2cyclictest0-21swapper/110:26:171
5911991811,2cyclictest0-21swapper/110:45:411
5911991810,6cyclictest0-21swapper/111:44:041
591199180,10cyclictest0-21swapper/110:18:121
5910991811,1cyclictest9215-21fschecks_count11:53:130
5910991810,6cyclictest0-21swapper/007:47:400
5910991810,5cyclictest0-21swapper/008:43:180
5910991810,4cyclictest0-21swapper/008:06:040
591199176,5cyclictest0-21swapper/111:08:141
591199175,5cyclictest21622-21/usr/sbin/munin07:48:101
591199173,6cyclictest0-21swapper/108:53:091
5911991711,2cyclictest0-21swapper/107:33:091
5911991710,5cyclictest0-21swapper/111:55:181
5911991710,3cyclictest0-21swapper/112:18:351
5911991710,3cyclictest0-21swapper/111:13:001
5911991710,3cyclictest0-21swapper/111:03:031
5911991710,1cyclictest0-21swapper/108:08:121
591199170,1cyclictest0-21swapper/110:30:351
591099178,4cyclictest0-21swapper/008:53:160
5910991710,3cyclictest0-21swapper/009:51:560
5910991710,3cyclictest0-21swapper/008:08:110
5910991610,0cyclictest0-21swapper/008:14:200
591199156,3cyclictest21343-21sshd07:47:241
591199153,7cyclictest0-21swapper/108:13:121
5911991515,0cyclictest0-21swapper/108:34:241
591199144,6cyclictest0-21swapper/108:58:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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