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2026-03-20 - 12:13
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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 Mar 20, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
690527058,8sleep10-21swapper/119:05:571
699626949,8sleep00-21swapper/019:06:530
222582670,1sleep122263-21missed_timers00:09:361
7416993230,1cyclictest231ktimersoftd/122:14:321
7416993230,1cyclictest0-21swapper/122:11:291
7415993022,6cyclictest6407-21apache221:54:390
741599290,28cyclictest0-21swapper/022:19:390
7416992826,1cyclictest3711-21ssh22:58:451
741699280,24cyclictest593-21lldpd19:29:321
7416992718,8cyclictest21464-21kworker/1:220:48:591
7416992710,10cyclictest0-21swapper/122:04:421
7415992725,1cyclictest6643-21ssh23:02:080
7415992710,15cyclictest0-21swapper/022:00:230
741699266,19cyclictest6063-21ssh23:45:321
7416992626,0cyclictest0-21swapper/100:27:081
7416992612,7cyclictest100150irq/106-eth1-rx22:45:111
741599260,1cyclictest0-21swapper/000:25:170
7416992525,0cyclictest0-21swapper/121:44:271
7416992511,10cyclictest21464-21kworker/1:223:15:291
7416992510,11cyclictest0-21swapper/121:02:481
7415992522,3cyclictest6380-21apache221:45:250
7415992510,10cyclictest100350irq/108-eth1-tx00:22:470
7416992424,0cyclictest0-21swapper/122:31:321
7416992411,6cyclictest100350irq/108-eth1-tx23:24:291
7416992410,8cyclictest0-21swapper/122:34:321
7415992424,0cyclictest0-21swapper/020:48:570
7415992423,1cyclictest0-21swapper/022:17:240
741599240,20cyclictest0-21swapper/020:25:270
7416992323,0cyclictest0-21swapper/121:53:031
7416992323,0cyclictest0-21swapper/100:00:351
7416992314,3cyclictest10647-21sh22:23:101
741699231,21cyclictest0-21swapper/122:24:371
7415992312,4cyclictest81ktimersoftd/023:54:460
7415992310,8cyclictest0-21swapper/022:56:040
7415992310,10cyclictest0-21swapper/021:14:360
7416992222,0cyclictest0-21swapper/122:01:181
7416992220,1cyclictest0-21swapper/100:08:581
7416992218,3cyclictest29219-21/usr/sbin/munin22:49:411
741699220,13cyclictest0-21swapper/123:29:411
741599228,6cyclictest20983-21diskmemload23:19:360
7415992217,4cyclictest6647-21ssh23:46:460
7415992214,3cyclictest0-21swapper/020:58:340
7415992211,4cyclictest12613-21kworker/0:120:05:080
7415992210,7cyclictest0-21swapper/022:44:110
741599220,21cyclictest0-21swapper/022:52:550
741599220,0cyclictest0-21swapper/023:06:010
741699216,11cyclictest0-21swapper/123:49:381
741699216,10cyclictest0-21swapper/119:24:351
7416992118,2cyclictest6380-21apache223:34:351
7416992117,3cyclictest6407-21apache219:14:331
7416992116,3cyclictest0-21swapper/121:10:351
741699211,5cyclictest11480-21ssh23:54:301
7416992112,1cyclictest0-21swapper/100:21:091
7415992118,1cyclictest0-21swapper/021:43:590
7415992115,5cyclictest81ktimersoftd/023:10:440
7415992113,4cyclictest0-21swapper/000:00:540
7415992110,5cyclictest0-21swapper/023:24:580
7415992110,5cyclictest0-21swapper/023:15:560
741599210,20cyclictest0-21swapper/021:09:150
741599210,20cyclictest0-21swapper/020:40:150
2365722110,1sleep10-21swapper/122:40:091
741699205,9cyclictest0-21swapper/119:34:391
741699205,9cyclictest0-21swapper/119:34:391
741699205,8cyclictest0-21swapper/100:14:331
7416992018,2cyclictest28850-21ssh21:19:251
7416992017,2cyclictest636-21nscd21:17:211
7416992012,7cyclictest650-21nscd23:12:461
7416992011,7cyclictest3655-21cron20:24:211
7416992010,3cyclictest0-21swapper/120:24:341
741599206,5cyclictest9197-21awk19:14:220
741599205,8cyclictest0-21swapper/023:29:320
741599205,11cyclictest0-21swapper/020:19:330
7415992018,1cyclictest81ktimersoftd/023:34:410
7415992018,1cyclictest32320-21apache_volume21:24:330
7415992017,2cyclictest5536-21ssh00:31:010
7415992014,3cyclictest18863-21if_err_eth322:34:360
7415992010,2cyclictest0-21swapper/020:59:300
741599200,20cyclictest0-21swapper/019:34:110
741599200,13cyclictest0-21swapper/019:44:360
741699195,8cyclictest0-21swapper/121:34:391
741699193,9cyclictest100450irq/109-eth1-tx20:04:401
741699193,10cyclictest0-21swapper/120:54:371
741699193,10cyclictest0-21swapper/119:39:331
7416991914,3cyclictest6380-21apache219:19:361
7416991911,4cyclictest0-21swapper/120:34:341
7416991910,8cyclictest0-21swapper/121:57:201
7416991910,3cyclictest0-21swapper/119:59:401
741599192,6cyclictest26152-21ssh00:14:410
7415991917,1cyclictest1616-21ls22:09:410
7415991915,3cyclictest6407-21apache200:34:390
7415991911,5cyclictest100150irq/106-eth1-rx21:49:490
741599191,10cyclictest0-21swapper/020:14:340
7415991910,4cyclictest0-21swapper/022:44:370
7415991910,4cyclictest0-21swapper/022:06:240
7415991910,3cyclictest0-21swapper/021:38:110
2120121910,0sleep00-21swapper/000:08:340
741699185,6cyclictest0-21swapper/119:44:321
741699184,9cyclictest0-21swapper/121:24:381
741699182,9cyclictest0-21swapper/120:39:431
741699182,10cyclictest0-21swapper/100:39:151
7416991811,4cyclictest100250irq/107-eth1-rx23:05:131
7416991810,8cyclictest0-21swapper/121:04:361
7416991810,5cyclictest100150irq/106-eth1-rx19:53:481
7416991810,4cyclictest0-21swapper/119:09:341
7416991810,1cyclictest0-21swapper/100:29:331
7415991818,0cyclictest81ktimersoftd/021:19:250
7415991816,2cyclictest6407-21apache219:14:410
7415991811,5cyclictest0-21swapper/023:51:100
7415991811,3cyclictest0-21swapper/022:34:210
7415991810,4cyclictest0-21swapper/020:39:010
7415991810,2cyclictest0-21swapper/021:29:350
741599180,11cyclictest0-21swapper/019:54:370
741699177,7cyclictest21464-21kworker/1:220:12:411
741699175,11cyclictest0-21swapper/122:59:371
741699174,8cyclictest0-21swapper/120:49:341
741699174,10cyclictest0-21swapper/121:29:341
7416991710,5cyclictest0-21swapper/123:41:431
7416991710,3cyclictest0-21swapper/120:14:431
741599177,6cyclictest21196-21/usr/sbin/munin21:09:320
741599172,8cyclictest0-21swapper/019:34:320
741599172,8cyclictest0-21swapper/019:34:320
7415991715,1cyclictest21851-21forks00:09:330
7415991710,2cyclictest0-21swapper/022:24:360
741699161,4cyclictest11343-21ssh21:39:351
7416991610,1cyclictest0-21swapper/123:19:341
741599165,5cyclictest0-21swapper/019:40:070
7415991612,3cyclictest81ktimersoftd/019:59:410
7415991610,2cyclictest0-21swapper/020:09:330
7416991510,2cyclictest0-21swapper/119:54:311
7416991510,1cyclictest0-21swapper/120:29:351
741599158,4cyclictest81ktimersoftd/020:29:350
741599153,6cyclictest0-21swapper/019:24:400
7415991510,3cyclictest0-21swapper/023:39:310
7415991510,1cyclictest0-21swapper/020:49:330
7415991411,2cyclictest0-21swapper/019:49:310
7415991410,1cyclictest0-21swapper/019:21:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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