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2026-06-29 - 04:17
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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 Jun 29, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90842770,0sleep09082-21seq20:28:480
995727050,15sleep10-21swapper/119:08:001
993627057,8sleep00-21swapper/019:07:470
118652670,1sleep10-21swapper/123:03:451
10190993020,2cyclictest0-21swapper/000:33:280
10190992910,0cyclictest0-21swapper/019:34:130
1019099284,4cyclictest91rcu_preempt23:03:500
1019099281,24cyclictest0-21swapper/021:37:430
1019099277,15cyclictest100150irq/106-eth1-rx22:48:440
1019099275,21cyclictest0-21swapper/000:16:210
10190992727,0cyclictest0-21swapper/023:47:020
10190992624,1cyclictest7-21ksoftirqd/019:43:330
10190992624,1cyclictest7-21ksoftirqd/000:08:460
10190992621,1cyclictest7-21ksoftirqd/022:17:370
10190992615,6cyclictest7-21ksoftirqd/000:23:450
10190992610,4cyclictest0-21swapper/022:30:260
10190992610,10cyclictest0-21swapper/022:59:400
10190992524,1cyclictest0-21swapper/022:08:580
10190992523,1cyclictest7-21ksoftirqd/023:28:520
10190992510,5cyclictest0-21swapper/021:03:460
10190992510,2cyclictest0-21swapper/021:47:270
1019199243,4cyclictest0-21swapper/100:17:091
10191992420,3cyclictest802-21apache222:37:441
10191992410,0cyclictest0-21swapper/122:47:301
10190992419,3cyclictest7-21ksoftirqd/021:29:280
10190992418,3cyclictest7-21ksoftirqd/020:33:490
1019099241,4cyclictest91rcu_preempt21:53:530
10190992414,2cyclictest0-21swapper/023:23:140
10190992410,8cyclictest100250irq/107-eth1-rx23:42:240
10190992410,7cyclictest0-21swapper/000:34:310
1019199236,12cyclictest0-21swapper/119:13:441
10191992321,1cyclictest0-21swapper/100:25:491
10191992320,3cyclictest231ktimersoftd/123:55:011
10191992320,2cyclictest0-21swapper/120:38:341
10191992319,3cyclictest23386-21apache222:16:201
1019199231,21cyclictest1199-21runrttasks21:14:151
10191992310,10cyclictest231ktimersoftd/123:46:341
10190992322,0cyclictest7-21ksoftirqd/022:38:470
10190992319,3cyclictest7-21ksoftirqd/019:53:490
10190992317,3cyclictest7-21ksoftirqd/021:38:500
1019099231,1cyclictest0-21swapper/021:12:550
10190992310,4cyclictest0-21swapper/019:18:450
10190992310,10cyclictest0-21swapper/000:01:510
1019199225,10cyclictest0-21swapper/120:58:451
10191992221,1cyclictest947-21sendmail-mta21:06:521
10191992215,4cyclictest705-21ntpd19:12:531
10191992210,8cyclictest0-21swapper/121:50:131
10191992210,3cyclictest0-21swapper/123:36:101
10190992221,0cyclictest7-21ksoftirqd/023:53:490
10190992221,0cyclictest7-21ksoftirqd/022:48:330
10190992217,4cyclictest802-21apache223:37:200
10190992216,4cyclictest947-21sendmail-mta20:39:370
10190992216,3cyclictest808-1kworker/u5:121:26:170
10190992210,5cyclictest0-21swapper/023:52:550
10190992210,1cyclictest0-21swapper/021:48:500
10190992210,10cyclictest0-21swapper/022:36:420
1019199216,9cyclictest0-21swapper/123:13:461
1019199215,8cyclictest0-21swapper/123:08:531
1019199214,14cyclictest0-21swapper/122:58:471
10191992112,6cyclictest100350irq/108-eth1-tx22:52:091
10191992110,5cyclictest0-21swapper/123:52:111
10191992110,5cyclictest0-21swapper/100:35:411
10191992110,4cyclictest0-21swapper/100:08:461
10191992110,1cyclictest0-21swapper/121:37:291
10191992110,0cyclictest0-21swapper/123:26:101
1019199210,0cyclictest0-21swapper/122:18:581
1019099214,11cyclictest0-21swapper/000:03:450
10190992121,0cyclictest0-21swapper/023:09:440
10190992117,3cyclictest7-21ksoftirqd/022:04:360
10190992110,6cyclictest0-21swapper/022:53:500
1019199205,7cyclictest0-21swapper/121:08:501
10191992018,1cyclictest636-21nscd21:30:481
10191992016,3cyclictest22586-21/usr/sbin/munin23:18:541
10191992016,3cyclictest0-21swapper/120:25:481
10191992014,4cyclictest100250irq/107-eth1-rx22:58:141
10191992013,5cyclictest23412-21apache200:30:381
10191992013,4cyclictest23386-21apache222:41:071
10191992010,7cyclictest0-21swapper/120:48:511
10191992010,5cyclictest0-21swapper/119:34:581
10191992010,2cyclictest0-21swapper/122:24:081
10190992019,1cyclictest0-21swapper/021:17:550
10190992016,3cyclictest7-21ksoftirqd/020:23:540
10190992015,1cyclictest81ktimersoftd/022:23:440
10190992014,4cyclictest31844-21apache_volume21:18:460
10190992013,2cyclictest7-21ksoftirqd/000:18:450
1019099201,1cyclictest91rcu_preempt19:47:440
3083221910,0sleep10-21swapper/122:00:001
2126221910,0sleep10-21swapper/121:48:101
2051921910,0sleep10-21swapper/122:30:231
1019199195,11cyclictest0-21swapper/121:38:561
1019199193,14cyclictest0-21swapper/123:38:541
10191991917,1cyclictest636-21nscd22:03:581
10191991912,3cyclictest100250irq/107-eth1-rx23:30:191
10191991912,3cyclictest0-21swapper/120:38:441
10191991911,7cyclictest0-21swapper/121:24:041
10191991911,5cyclictest0-21swapper/122:08:451
10191991910,4cyclictest0-21swapper/119:53:441
10191991910,4cyclictest0-21swapper/119:38:441
10191991910,2cyclictest0-21swapper/121:18:581
1019099197,10cyclictest20600-21ssh23:14:310
1019099192,9cyclictest744-21snmpd19:58:460
1019099192,11cyclictest0-21swapper/020:13:450
1019099191,2cyclictest91rcu_preempt19:28:520
10190991910,6cyclictest0-21swapper/019:50:230
10190991910,3cyclictest0-21swapper/022:18:480
10190991910,3cyclictest0-21swapper/020:53:450
2521621810,0sleep10-21swapper/100:05:581
1019199189,4cyclictest231ktimersoftd/119:28:501
1019199188,7cyclictest0-21swapper/120:53:511
1019199183,10cyclictest0-21swapper/119:23:471
10191991815,1cyclictest10188-21cyclictest21:57:351
10191991810,3cyclictest0-21swapper/100:19:281
10191991810,0cyclictest0-21swapper/100:01:361
1019099189,4cyclictest648-21nscd23:25:160
1019099186,6cyclictest0-21swapper/020:43:480
10190991817,0cyclictest0-21swapper/019:23:510
10190991811,5cyclictest81ktimersoftd/020:18:450
10190991810,4cyclictest0-21swapper/021:58:470
1019099180,0cyclictest91rcu_preempt20:08:530
1019199179,2cyclictest745-21watchprog-snmpd19:47:371
1019199176,7cyclictest23412-21apache220:28:441
1019199173,9cyclictest0-21swapper/120:13:511
1019199173,2cyclictest29591-21cstates19:58:461
10191991710,5cyclictest0-21swapper/120:19:451
10190991714,1cyclictest23386-21apache219:13:190
10190991710,4cyclictest0-21swapper/020:08:050
10190991710,3cyclictest0-21swapper/021:01:240
10191991610,4cyclictest0-21swapper/119:48:541
10191991610,3cyclictest0-21swapper/119:18:471
1019199154,5cyclictest0-21swapper/120:03:481
1019199153,4cyclictest0-21swapper/120:08:471
10191991515,0cyclictest0-21swapper/120:43:501
1019099159,3cyclictest81ktimersoftd/020:48:460
10190991410,2cyclictest0-21swapper/019:13:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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