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2026-04-13 - 04:12
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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 all highest latencies:
System rackcslot2.osadl.org (updated Mon Apr 13, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
292162710,1sleep00-21swapper/023:31:490
710726949,8sleep10-21swapper/119:04:211
872326750,8sleep00-21swapper/019:07:150
9088993410,24cyclictest0-21swapper/020:20:010
9088993331,1cyclictest81ktimersoftd/000:14:310
9089993210,3cyclictest0-21swapper/123:07:361
9089993112,19cyclictest17323-21kworker/1:222:37:121
9089993110,0cyclictest0-21swapper/121:21:221
9088993028,1cyclictest6183-21python21:29:300
9089992910,16cyclictest0-21swapper/120:49:521
9089992827,1cyclictest0-21swapper/100:15:241
908999280,27cyclictest22663-21diskmemload00:34:501
9088992823,2cyclictest20794-21gzip22:34:290
9089992725,1cyclictest7191-21apache221:54:321
908899270,12cyclictest22409-21awk19:44:110
9089992620,5cyclictest0-21swapper/123:09:261
9088992623,2cyclictest7-21ksoftirqd/023:59:290
9088992610,9cyclictest0-21swapper/023:39:240
908899260,23cyclictest11183-21ssh23:51:400
9089992510,5cyclictest0-21swapper/119:24:221
9088992510,6cyclictest0-21swapper/020:28:480
9089992419,4cyclictest231ktimersoftd/120:38:281
9089992410,2cyclictest0-21swapper/123:16:191
908999240,6cyclictest0-21swapper/123:23:421
9088992423,1cyclictest0-21swapper/023:19:230
9088992418,1cyclictest81ktimersoftd/019:19:230
9088992411,11cyclictest0-21swapper/023:11:080
908999235,15cyclictest14804-21kworker/u4:121:39:231
9089992310,7cyclictest0-21swapper/119:40:571
9088992321,1cyclictest0-21swapper/000:10:260
9089992219,2cyclictest7191-21apache221:10:591
9089992217,3cyclictest231ktimersoftd/120:14:271
9089992217,3cyclictest0-21swapper/120:19:291
9089992211,7cyclictest0-21swapper/119:54:221
9089992210,8cyclictest0-21swapper/122:30:541
9089992210,10cyclictest0-21swapper/121:52:131
908999220,21cyclictest0-21swapper/123:52:381
908999220,21cyclictest0-21swapper/122:53:201
908999220,16cyclictest0-21swapper/120:24:221
908899224,15cyclictest0-21swapper/000:26:290
9088992216,4cyclictest7191-21apache200:19:320
908899220,12cyclictest0-21swapper/021:39:220
908999212,9cyclictest0-21swapper/119:19:281
9089992110,7cyclictest0-21swapper/122:59:291
9089992110,6cyclictest0-21swapper/123:31:341
9089992110,4cyclictest0-21swapper/123:26:561
9089992110,2cyclictest0-21swapper/123:55:411
9089992110,2cyclictest0-21swapper/123:43:541
9089992110,10cyclictest0-21swapper/123:34:281
908999210,20cyclictest0-21swapper/121:47:571
908899212,10cyclictest0-21swapper/020:54:280
9088992121,0cyclictest0-21swapper/020:29:300
9088992120,1cyclictest7172-21apache222:32:240
9088992116,2cyclictest0-21swapper/021:14:040
908899211,12cyclictest744-21snmpd22:59:220
9088992110,7cyclictest0-21swapper/023:24:210
9088992110,3cyclictest0-21swapper/020:51:360
908899210,20cyclictest30778-21perl23:34:240
3235322110,0sleep00-21swapper/022:05:330
908999204,11cyclictest0-21swapper/122:24:261
908999203,11cyclictest0-21swapper/119:09:221
9089992014,3cyclictest30503-21munin-node19:47:451
9089992010,5cyclictest0-21swapper/120:09:251
9089992010,3cyclictest0-21swapper/122:05:391
908899206,7cyclictest0-21swapper/000:29:330
9088992018,1cyclictest0-21swapper/022:26:190
908899201,12cyclictest0-21swapper/021:54:220
9088992010,7cyclictest0-21swapper/022:03:090
9088992010,6cyclictest0-21swapper/023:47:380
9088992010,5cyclictest0-21swapper/021:26:580
9088992010,4cyclictest0-21swapper/021:19:300
9088992010,3cyclictest0-21swapper/019:49:290
908999196,8cyclictest19622-21apache_volume00:04:231
908999195,6cyclictest0-21swapper/121:06:341
908999195,6cyclictest0-21swapper/120:33:531
908999194,10cyclictest0-21swapper/100:29:251
9089991914,4cyclictest7191-21apache223:59:571
9089991912,3cyclictest0-21swapper/100:10:271
9089991912,2cyclictest24854-21sh22:39:441
9089991910,7cyclictest0-21swapper/121:31:411
9089991910,3cyclictest0-21swapper/121:34:271
9089991910,3cyclictest0-21swapper/100:19:161
908899198,6cyclictest9083-1kworker/0:1H20:39:300
908899195,10cyclictest8995-21wc23:04:240
908899194,9cyclictest0-21swapper/000:04:270
908899193,5cyclictest0-21swapper/023:16:300
908899193,12cyclictest0-21swapper/019:29:250
908899192,10cyclictest22663-21diskmemload00:34:220
9088991918,1cyclictest7191-21apache223:58:160
9088991916,3cyclictest7191-21apache221:45:130
9088991910,5cyclictest0-21swapper/021:50:580
9088991910,5cyclictest0-21swapper/019:59:220
9088991910,4cyclictest0-21swapper/019:17:510
1115921910,0sleep00-21swapper/022:21:190
908999185,8cyclictest0-21swapper/122:14:271
908999183,7cyclictest31971-21idleruntime-cro20:09:111
908999183,7cyclictest0-21swapper/120:59:271
908999183,1cyclictest22663-21diskmemload00:24:131
908999183,10cyclictest0-21swapper/120:39:221
9089991811,3cyclictest0-21swapper/121:59:311
9089991810,4cyclictest0-21swapper/121:14:231
9089991810,3cyclictest0-21swapper/122:44:261
9089991810,2cyclictest0-21swapper/119:49:231
9089991810,0cyclictest0-21swapper/122:54:301
908899187,5cyclictest0-21swapper/020:14:280
908899184,10cyclictest0-21swapper/022:39:320
908899182,11cyclictest19084-21cpuspeed_turbos20:59:230
9088991815,3cyclictest9086-21cyclictest22:54:510
9088991810,4cyclictest0-21swapper/022:15:180
9088991810,3cyclictest0-21swapper/022:49:240
9088991810,3cyclictest0-21swapper/021:38:280
9088991810,3cyclictest0-21swapper/021:14:280
9088991810,2cyclictest0-21swapper/022:46:470
908899180,8cyclictest0-21swapper/019:54:220
18602180,0sleep10-21swapper/121:24:241
908999175,8cyclictest0-21swapper/120:44:271
908999174,6cyclictest0-21swapper/120:54:231
908999171,6cyclictest18770-21cpuspeed_turbos19:34:221
9089991710,2cyclictest0-21swapper/119:31:361
9089991710,0cyclictest0-21swapper/123:48:481
908899173,4cyclictest15958-21grep19:24:290
908899171,7cyclictest31975-21munin-run20:09:110
908899171,6cyclictest24414-21latency_hist19:49:110
9088991710,3cyclictest0-21swapper/022:09:220
1484121710,1sleep00-21swapper/020:47:440
1097821710,0sleep10-21swapper/122:20:561
908999164,7cyclictest0-21swapper/119:15:291
9089991610,4cyclictest0-21swapper/120:01:081
9089991610,3cyclictest0-21swapper/122:09:501
908899162,7cyclictest19979-21uptime19:34:320
9088991610,6cyclictest0-21swapper/021:08:570
9088991610,1cyclictest0-21swapper/020:34:310
9088991610,1cyclictest0-21swapper/019:13:060
908899131,6cyclictest1219-21runrttasks20:11:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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