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2026-04-14 - 16:21
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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 Tue Apr 14, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
862727932,41sleep00-21swapper/007:04:310
941327057,8sleep10-21swapper/107:07:411
263002530,0sleep00-21swapper/009:11:500
9738993417,17cyclictest0-21swapper/108:18:521
9738993417,17cyclictest0-21swapper/108:18:521
9738992727,0cyclictest0-21swapper/110:59:311
9738992710,8cyclictest0-21swapper/108:59:211
973799271,25cyclictest0-21swapper/010:44:250
9737992710,16cyclictest0-21swapper/011:16:420
9738992610,1cyclictest0-21swapper/109:17:111
9738992610,13cyclictest0-21swapper/110:37:351
9737992611,8cyclictest0-21swapper/011:29:280
9738992522,2cyclictest19613-21apache211:09:421
973899251,23cyclictest24197-21/usr/sbin/munin09:54:281
9738992510,3cyclictest0-21swapper/110:24:201
973899242,2cyclictest0-21swapper/109:34:131
9738992420,4cyclictest0-21swapper/108:09:541
9738992418,1cyclictest231ktimersoftd/110:30:481
9738992410,9cyclictest0-21swapper/107:14:231
9738992410,8cyclictest0-21swapper/111:33:051
9737992423,0cyclictest11987-21kworker/u4:110:25:450
973799240,19cyclictest0-21swapper/009:29:460
973899231,14cyclictest0-21swapper/112:36:111
973899230,1cyclictest0-21swapper/112:06:591
973899230,18cyclictest19209-21runrttasks11:16:561
973799232,17cyclictest27046-21kworker/u4:112:33:420
9737992319,3cyclictest19629-21apache210:19:160
9737992310,6cyclictest0-21swapper/012:12:310
9737992310,6cyclictest0-21swapper/010:29:290
9737992310,5cyclictest0-21swapper/007:24:300
973799230,15cyclictest0-21swapper/009:49:220
9738992210,9cyclictest0-21swapper/109:29:211
9738992210,5cyclictest0-21swapper/107:55:551
9738992210,3cyclictest0-21swapper/110:19:031
9738992210,11cyclictest0-21swapper/110:57:181
9737992220,1cyclictest7-21ksoftirqd/011:09:550
9737992220,1cyclictest0-21swapper/012:24:460
9737992217,3cyclictest19629-21apache210:43:480
9737992216,1cyclictest0-21swapper/009:39:290
9737992212,6cyclictest19613-21apache212:22:310
9737992210,5cyclictest0-21swapper/011:19:190
9737992210,5cyclictest0-21swapper/010:04:230
9737992210,4cyclictest0-21swapper/010:55:010
9737992210,3cyclictest0-21swapper/011:55:180
9737992210,11cyclictest0-21swapper/011:44:280
973899218,5cyclictest23638-21diskmemload11:54:241
9738992120,1cyclictest0-21swapper/112:13:181
9738992120,0cyclictest0-21swapper/110:50:331
9738992119,1cyclictest9735-21cyclictest12:33:311
9738992115,1cyclictest0-21swapper/108:04:501
973899211,19cyclictest0-21swapper/110:19:261
9738992110,6cyclictest100250irq/107-eth1-rx10:05:411
9738992110,5cyclictest0-21swapper/111:37:051
973899210,13cyclictest0-21swapper/111:39:331
973799215,11cyclictest9591-21apache_processe11:49:210
973799214,8cyclictest0-21swapper/009:37:070
973799212,18cyclictest0-21swapper/009:24:230
9737992121,0cyclictest0-21swapper/007:40:340
9737992120,1cyclictest19629-21apache211:27:410
9737992120,1cyclictest0-21swapper/008:59:290
9737992119,1cyclictest7-21ksoftirqd/012:39:100
9737992119,1cyclictest6044-21/usr/sbin/munin10:59:220
9737992117,2cyclictest1199-21runrttasks10:01:500
973799211,1cyclictest0-21swapper/010:52:430
9737992110,4cyclictest0-21swapper/010:15:370
9737992110,0cyclictest0-21swapper/009:54:420
973899204,9cyclictest0-21swapper/108:49:311
973899204,6cyclictest0-21swapper/108:54:231
9738992015,4cyclictest6798-21kworker/1:211:51:091
9738992014,3cyclictest21778-1kworker/u5:211:19:581
9738992013,5cyclictest19629-21apache209:20:021
9738992010,7cyclictest0-21swapper/109:39:241
9738992010,5cyclictest0-21swapper/110:40:421
9738992010,5cyclictest0-21swapper/110:09:311
9738992010,4cyclictest0-21swapper/108:19:231
9738992010,4cyclictest0-21swapper/107:34:101
973899200,16cyclictest0-21swapper/109:49:341
973899200,16cyclictest0-21swapper/109:44:251
973799206,12cyclictest0-21swapper/012:04:290
973799204,9cyclictest0-21swapper/008:24:200
973799203,13cyclictest0-21swapper/011:39:320
9737992018,2cyclictest19613-21apache212:02:080
9737992018,1cyclictest0-21swapper/012:16:210
9737992018,0cyclictest0-21swapper/008:01:120
9737992015,3cyclictest19613-21apache211:07:000
9737992010,5cyclictest0-21swapper/009:22:500
9737992010,4cyclictest0-21swapper/009:14:200
781322010,0sleep10-21swapper/111:45:531
973899194,6cyclictest0-21swapper/107:59:231
973899194,10cyclictest0-21swapper/111:24:241
9738991916,1cyclictest19629-21apache208:35:411
9738991910,6cyclictest0-21swapper/110:03:381
9738991910,3cyclictest0-21swapper/109:09:441
9738991910,3cyclictest0-21swapper/107:44:301
9738991910,3cyclictest0-21swapper/107:24:221
9737991918,1cyclictest19629-21apache208:22:400
9737991910,5cyclictest0-21swapper/011:34:270
973799190,16cyclictest0-21swapper/009:08:350
2040321910,0sleep00-21swapper/010:34:120
973899184,6cyclictest23629-21cron09:09:101
9738991813,2cyclictest23638-21diskmemload09:25:381
9738991810,4cyclictest0-21swapper/110:44:261
9738991810,4cyclictest0-21swapper/107:49:211
9738991810,4cyclictest0-21swapper/107:09:271
9738991810,3cyclictest0-21swapper/108:39:221
973799184,10cyclictest0-21swapper/008:54:230
973799182,9cyclictest0-21swapper/007:44:210
973799182,5cyclictest0-21swapper/007:14:190
9737991811,4cyclictest19613-21apache207:34:310
9737991810,0cyclictest0-21swapper/009:45:220
1916621810,1sleep10-21swapper/107:33:211
973899179,3cyclictest30764-21idleruntime-cro12:19:101
973899176,2cyclictest0-21swapper/112:03:301
973899173,9cyclictest0-21swapper/107:39:281
9738991710,3cyclictest0-21swapper/108:44:221
9738991710,1cyclictest0-21swapper/112:21:541
973899170,12cyclictest14347-21grep07:19:271
973799175,3cyclictest8406-21apache_accesses08:29:230
9737991715,1cyclictest3162sleep008:07:350
9737991712,2cyclictest0-21swapper/007:09:240
9737991711,4cyclictest0-21swapper/010:09:110
9737991710,5cyclictest0-21swapper/008:45:240
9737991710,3cyclictest0-21swapper/008:17:090
9737991710,3cyclictest0-21swapper/008:17:090
9737991710,2cyclictest0-21swapper/008:34:170
9738991610,5cyclictest0-21swapper/111:04:231
9738991610,5cyclictest0-21swapper/108:32:001
973899160,0cyclictest0-21swapper/112:26:231
973799168,5cyclictest10163-21apache207:29:220
973799164,6cyclictest0-21swapper/007:19:230
9737991612,3cyclictest100150irq/106-eth1-rx08:39:250
973899155,5cyclictest0-21swapper/108:24:201
973799151,8cyclictest0-21swapper/007:49:210
9737991510,1cyclictest0-21swapper/008:49:280
9737991510,1cyclictest0-21swapper/008:09:310
9737991410,2cyclictest0-21swapper/007:54:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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