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2026-07-20 - 11:37
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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 Mon Jul 20, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
622522010,4sleep10-21swapper/119:03:381
721326856,8sleep00-21swapper/019:05:110
128642680,0sleep00-21swapper/000:20:580
216652660,1sleep121664-21tune2fs22:28:371
7699993410,1cyclictest0-21swapper/023:30:260
7700993131,0cyclictest0-21swapper/123:05:581
7699993110,20cyclictest0-21swapper/021:09:040
7700993010,19cyclictest0-21swapper/119:37:411
7699993024,5cyclictest13333-21ssh21:37:590
7700992928,0cyclictest0-21swapper/121:31:281
7699992912,16cyclictest0-21swapper/019:57:000
7699992910,1cyclictest0-21swapper/021:49:450
7700992810,4cyclictest0-21swapper/123:56:401
7699992820,5cyclictest0-21swapper/023:02:130
7699992810,18cyclictest0-21swapper/000:16:150
7700992710,1cyclictest10487-21kworker/u4:200:19:491
769999270,24cyclictest0-21swapper/022:12:470
769999270,1cyclictest0-21swapper/000:12:110
770099261,5cyclictest0-21swapper/100:37:331
7700992610,12cyclictest21336-21diskmemload22:46:591
770099260,1cyclictest0-21swapper/100:32:581
769999261,8cyclictest0-21swapper/022:45:240
769999260,0cyclictest0-21swapper/022:35:470
770099253,4cyclictest0-21swapper/123:42:531
7699992510,1cyclictest0-21swapper/021:53:430
7699992510,0cyclictest0-21swapper/023:59:390
7700992411,10cyclictest100150irq/106-eth1-rx22:35:361
7700992410,6cyclictest0-21swapper/123:53:121
769999243,10cyclictest21330-21apache_accesses22:28:340
7699992421,2cyclictest81ktimersoftd/023:46:200
7700992319,2cyclictest0-21swapper/100:09:191
7700992317,4cyclictest19129-21apache200:25:411
7700992310,5cyclictest0-21swapper/122:08:151
7700992310,5cyclictest0-21swapper/121:41:571
7699992321,1cyclictest636-21nscd22:50:090
769999231,20cyclictest0-21swapper/019:32:240
7699992310,9cyclictest100250irq/107-eth1-rx21:42:520
7699992310,7cyclictest0-21swapper/019:48:370
7699992310,10cyclictest0-21swapper/023:18:230
769999230,17cyclictest100250irq/107-eth1-rx00:07:060
769999230,16cyclictest0-21swapper/022:23:330
770099229,9cyclictest0-21swapper/120:03:441
7700992222,0cyclictest0-21swapper/122:21:341
770099222,17cyclictest0-21swapper/123:28:571
7700992214,7cyclictest21493-21kworker/1:021:00:221
7700992212,6cyclictest100150irq/106-eth1-rx22:02:131
7700992211,5cyclictest0-21swapper/122:53:331
7700992210,7cyclictest0-21swapper/120:33:341
7700992210,5cyclictest0-21swapper/119:08:331
7700992210,1cyclictest0-21swapper/122:42:471
770099220,14cyclictest0-21swapper/120:13:381
7699992219,2cyclictest19109-21apache223:53:000
7699992210,9cyclictest19109-21apache221:23:200
7699992210,6cyclictest0-21swapper/020:08:350
7699992210,2cyclictest0-21swapper/022:18:420
770099219,7cyclictest19129-21apache221:20:461
770099215,9cyclictest0-21swapper/122:58:371
7700992120,1cyclictest0-21swapper/120:39:481
7700992118,2cyclictest7697-21cyclictest00:04:171
7700992110,8cyclictest30318-1kworker/u5:223:24:521
7700992110,4cyclictest0-21swapper/122:08:251
770099210,13cyclictest0-21swapper/121:13:371
769999215,15cyclictest0-21swapper/000:32:170
769999212,19cyclictest0-21swapper/020:35:000
7699992119,1cyclictest81ktimersoftd/023:14:560
7699992110,7cyclictest0-21swapper/019:23:350
7699992110,5cyclictest0-21swapper/019:13:400
7699992110,4cyclictest0-21swapper/022:54:290
7699992110,4cyclictest0-21swapper/020:53:410
7699992110,11cyclictest0-21swapper/020:39:160
769999210,1cyclictest0-21swapper/023:11:190
769999210,18cyclictest0-21swapper/023:03:470
770099207,10cyclictest0-21swapper/121:23:331
770099206,8cyclictest0-21swapper/119:43:381
770099205,7cyclictest0-21swapper/121:48:341
770099204,9cyclictest21336-21diskmemload00:13:431
770099204,14cyclictest0-21swapper/122:48:341
770099203,15cyclictest0-21swapper/120:53:431
7700992010,6cyclictest0-21swapper/121:37:521
7700992010,3cyclictest0-21swapper/123:33:331
7700992010,2cyclictest0-21swapper/121:03:411
769999205,10cyclictest0-21swapper/022:05:180
769999204,7cyclictest0-21swapper/023:53:410
7699992014,5cyclictest593-21lldpd20:45:580
769999201,2cyclictest0-21swapper/000:36:160
7699992010,4cyclictest0-21swapper/020:28:340
7699992010,2cyclictest0-21swapper/023:33:340
7699992010,1cyclictest0-21swapper/021:32:010
769999200,19cyclictest0-21swapper/000:24:090
770099194,10cyclictest5929-21munin-run20:28:231
770099191,7cyclictest100250irq/107-eth1-rx23:16:541
7700991917,1cyclictest0-21swapper/123:20:141
7700991913,3cyclictest802-21apache222:13:281
7700991910,5cyclictest0-21swapper/119:38:431
7700991910,3cyclictest0-21swapper/123:08:271
7700991910,1cyclictest0-21swapper/121:44:411
770099190,10cyclictest0-21swapper/119:58:341
769999192,8cyclictest0-21swapper/020:58:430
7699991910,5cyclictest0-21swapper/021:23:330
7699991910,3cyclictest0-21swapper/022:40:060
7699991910,3cyclictest0-21swapper/020:18:350
7699991910,2cyclictest0-21swapper/019:13:220
7699991910,1cyclictest0-21swapper/022:18:030
2886421910,0sleep00-21swapper/021:16:490
770099186,3cyclictest0-21swapper/122:23:271
770099182,14cyclictest0-21swapper/120:18:401
770099182,13cyclictest0-21swapper/119:53:361
7700991816,1cyclictest231ktimersoftd/123:43:331
7700991810,5cyclictest0-21swapper/121:09:161
7700991810,4cyclictest0-21swapper/120:43:321
7700991810,4cyclictest0-21swapper/120:28:401
7700991810,3cyclictest0-21swapper/119:18:441
769999186,10cyclictest0-21swapper/020:48:330
769999182,8cyclictest0-21swapper/019:33:370
7699991811,4cyclictest100150irq/106-eth1-rx23:38:410
7699991810,3cyclictest0-21swapper/021:44:480
7699991810,3cyclictest0-21swapper/021:03:440
7699991810,1cyclictest0-21swapper/019:43:400
7699991810,0cyclictest0-21swapper/023:26:060
139172180,1sleep10-21swapper/120:48:351
770099171,6cyclictest0-21swapper/120:08:431
7700991716,1cyclictest7697-21cyclictest19:17:081
7700991716,1cyclictest31037-21ssh00:02:271
7700991710,3cyclictest0-21swapper/121:55:271
7700991710,3cyclictest0-21swapper/119:23:431
769999174,9cyclictest0-21swapper/020:23:330
769999171,7cyclictest26975-21apache_processe19:58:330
7699991710,7cyclictest0-21swapper/019:23:120
769999170,1cyclictest0-21swapper/019:38:400
7699991610,6cyclictest0-21swapper/020:06:160
7699991610,3cyclictest0-21swapper/021:58:330
7700991513,1cyclictest19129-21apache219:29:301
7700991510,2cyclictest0-21swapper/119:48:341
7699991510,3cyclictest0-21swapper/020:16:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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