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2026-07-02 - 03:39
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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 Thu Jul 02, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
918327338,30sleep10-21swapper/119:03:561
918226953,7sleep00-21swapper/019:03:550
980299389,1cyclictest91rcu_preempt22:13:420
9802993635,0cyclictest7-21ksoftirqd/022:43:420
9802993534,0cyclictest81ktimersoftd/021:38:520
9802993421,3cyclictest91rcu_preempt22:32:260
9802993417,5cyclictest7-21ksoftirqd/023:33:400
9802993412,3cyclictest91rcu_preempt23:52:340
9802993329,2cyclictest7-21ksoftirqd/023:56:220
9802993322,8cyclictest7-21ksoftirqd/022:34:290
9802993229,2cyclictest12519-21ntp_states19:13:500
9802993226,4cyclictest7-21ksoftirqd/021:50:200
9802993225,6cyclictest10649-21cat23:43:500
9802993224,4cyclictest7-21ksoftirqd/023:14:300
9802993220,4cyclictest91rcu_preempt23:58:480
9802993129,1cyclictest29271-21df19:58:440
9802993127,3cyclictest8752-21tr22:58:450
9802993127,3cyclictest7-21ksoftirqd/000:37:410
9802993127,3cyclictest30737-21taskset00:13:340
9802993115,7cyclictest81ktimersoftd/022:08:510
9802993029,0cyclictest7-21ksoftirqd/021:44:380
9802993028,1cyclictest7-21ksoftirqd/022:05:450
9802993028,1cyclictest26135-21ntp_states21:53:490
9802993027,2cyclictest18708-21sed19:28:510
9802993027,2cyclictest17990-21diskstats20:53:450
9802993027,2cyclictest17420-21sort19:28:320
9802993027,2cyclictest12760-21/usr/sbin/munin23:03:470
9802993026,3cyclictest29665-21ssh23:26:300
9802993026,3cyclictest2908-21diskstats21:23:450
9803992927,1cyclictest231ktimersoftd/119:53:421
9803992927,1cyclictest231ktimersoftd/119:53:421
980399292,22cyclictest0-21swapper/100:34:081
980299299,2cyclictest7-21ksoftirqd/000:07:380
9802992927,1cyclictest30979-21apache_processe20:03:420
9802992927,1cyclictest22020-21hddtemp_smartct21:03:440
9802992927,1cyclictest10306-21df20:33:440
9802992926,2cyclictest7-21ksoftirqd/000:24:230
9802992926,2cyclictest4488-21ssh00:22:160
9802992926,2cyclictest296882sleep021:15:250
9802992926,2cyclictest18273-21ssh22:27:420
9802992926,2cyclictest12084-21irqstats22:18:470
9802992925,4cyclictest121rcuc/021:28:480
9802992921,6cyclictest8179-21apache_processe20:28:420
9802992912,2cyclictest91rcu_preempt20:58:510
9803992828,0cyclictest0-21swapper/100:09:131
9802992826,2cyclictest7-21ksoftirqd/022:50:020
9802992826,1cyclictest27517-21apache_volume00:08:450
9802992826,1cyclictest21344-21apache_accesses19:38:430
9802992825,3cyclictest23417-21diskmemload23:39:250
9802992825,2cyclictest5079-21cpuspeed_turbos22:53:420
9802992825,2cyclictest23417-21diskmemload23:29:350
9802992825,2cyclictest16010-21apache_accesses23:08:420
9802992825,2cyclictest11059-21unixbench_singl19:08:520
9802992825,2cyclictest0-21swapper/022:01:190
9802992824,3cyclictest11272-21ssh00:31:030
9802992820,7cyclictest5009-21missed_timers20:18:470
9802992810,2cyclictest91rcu_preempt21:19:100
980399270,3cyclictest25692-21hddtemp_smartct21:53:451
9802992725,2cyclictest23417-21diskmemload23:19:390
9802992725,1cyclictest1273-21ntp_states20:08:490
9802992724,1cyclictest7-21ksoftirqd/021:35:470
9802992722,4cyclictest0-21swapper/019:18:500
9802992624,2cyclictest0-21swapper/019:48:440
9802992623,2cyclictest27817-21ls19:53:480
9802992623,2cyclictest27817-21ls19:53:480
9802992622,3cyclictest14572-21ls20:43:480
9802992622,3cyclictest12400-21wget20:38:460
9802992622,3cyclictest0-21swapper/022:38:520
980399257,17cyclictest0-21swapper/122:27:041
9803992524,1cyclictest0-21swapper/123:36:311
980399251,6cyclictest0-21swapper/121:38:361
9803992510,3cyclictest0-21swapper/120:58:431
9802992523,2cyclictest0-21swapper/019:43:490
9802992522,2cyclictest0-21swapper/019:33:490
9802992521,3cyclictest24985-21ssh21:08:510
9803992419,3cyclictest21641-21apache220:13:521
9803992410,5cyclictest0-21swapper/123:56:401
9803992410,11cyclictest0-21swapper/123:06:001
980399239,5cyclictest636-21nscd23:29:161
980399238,14cyclictest23417-21diskmemload22:03:421
980399236,16cyclictest0-21swapper/120:30:141
9803992323,0cyclictest0-21swapper/122:59:431
9803992321,1cyclictest18835-21ssh23:12:181
9803992318,0cyclictest0-21swapper/122:38:081
9803992315,4cyclictest23417-21diskmemload00:17:111
9803992314,6cyclictest0-21swapper/121:15:281
9803992310,6cyclictest0-21swapper/123:40:361
9803992310,13cyclictest0-21swapper/122:43:131
9802992320,2cyclictest0-21swapper/020:48:440
9803992221,1cyclictest0-21swapper/119:33:101
9803992221,0cyclictest0-21swapper/123:28:161
980399221,15cyclictest0-21swapper/122:49:171
9803992211,3cyclictest0-21swapper/100:23:501
9803992210,3cyclictest0-21swapper/120:08:441
9803992119,1cyclictest10285-21ntp_states23:43:481
9803992117,2cyclictest231ktimersoftd/123:16:521
9803992110,4cyclictest0-21swapper/121:23:491
9803992110,4cyclictest0-21swapper/120:18:431
9803992110,4cyclictest0-21swapper/119:18:431
9803992110,3cyclictest0-21swapper/122:12:181
9802992110,5cyclictest7-21ksoftirqd/020:24:290
980399204,8cyclictest0-21swapper/123:58:431
9803992020,0cyclictest0-21swapper/122:48:311
9803992018,1cyclictest0-21swapper/121:34:141
9803992011,7cyclictest0-21swapper/122:32:061
980399201,12cyclictest0-21swapper/122:57:221
9803992010,7cyclictest0-21swapper/100:05:461
9803992010,5cyclictest100250irq/107-eth1-rx22:17:361
9803992010,4cyclictest0-21swapper/122:18:431
9803992010,0cyclictest0-21swapper/100:29:341
980399200,13cyclictest0-21swapper/120:35:411
980399200,11cyclictest0-21swapper/121:08:421
9802992016,3cyclictest3962-21runrttasks20:16:250
980399196,9cyclictest0-21swapper/119:48:441
980399193,10cyclictest6451-21apache_volume21:28:441
980399192,13cyclictest0-21swapper/120:38:451
9803991919,0cyclictest0-21swapper/119:46:031
9803991915,3cyclictest21666-21apache221:44:591
9803991910,6cyclictest0-21swapper/121:51:411
9803991910,5cyclictest0-21swapper/122:00:561
9803991910,3cyclictest773-21sshd00:22:161
9803991910,3cyclictest0-21swapper/120:23:441
9803991910,1cyclictest0-21swapper/123:19:061
980399185,7cyclictest0-21swapper/120:43:431
980399182,9cyclictest0-21swapper/121:18:421
9803991810,5cyclictest0-21swapper/120:48:441
9803991810,4cyclictest0-21swapper/119:33:441
9803991810,2cyclictest0-21swapper/120:53:431
2133021810,0sleep10-21swapper/119:38:371
980399178,4cyclictest0-21swapper/121:06:501
980399173,8cyclictest0-21swapper/119:13:521
9803991710,6cyclictest0-21swapper/120:08:131
9803991710,4cyclictest0-21swapper/123:48:541
9803991710,3cyclictest0-21swapper/119:23:431
9803991610,2cyclictest0-21swapper/119:58:451
980399152,9cyclictest0-21swapper/119:08:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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