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2026-06-14 - 07:10
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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 Sun Jun 14, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1576727461,8sleep00-21swapper/019:08:090
67082700,5sleep11600399cyclictest22:03:521
46782680,0sleep00-21swapper/023:28:110
1540926855,8sleep10-21swapper/119:04:251
173872660,0sleep10-21swapper/122:18:131
103292640,0sleep00-21swapper/022:51:310
3152410,0sleep00-21swapper/022:38:470
16002993030,0cyclictest0-21swapper/021:02:040
1582322926,1sleep00-21swapper/019:08:420
16003992624,1cyclictest10846-21ssh23:35:341
16003992618,3cyclictest613-21apache200:35:091
16003992610,2cyclictest0-21swapper/100:19:001
16002992610,11cyclictest0-21swapper/023:04:390
16003992525,0cyclictest0-21swapper/119:55:401
16003992510,8cyclictest0-21swapper/122:49:301
16002992525,0cyclictest0-21swapper/019:33:080
16002992518,0cyclictest14939-21rm22:14:010
16003992419,3cyclictest613-21apache219:47:091
1600399241,22cyclictest26460-21kworker/1:223:55:311
16002992422,1cyclictest81ktimersoftd/020:49:030
16002992416,4cyclictest81ktimersoftd/021:38:530
16002992410,7cyclictest0-21swapper/000:09:010
16002992410,5cyclictest0-21swapper/023:17:570
16002992410,3cyclictest0-21swapper/022:09:120
16002992410,12cyclictest0-21swapper/023:55:540
16003992320,2cyclictest613-21apache223:52:421
16003992316,5cyclictest613-21apache223:17:551
16003992310,6cyclictest0-21swapper/121:30:301
16002992317,3cyclictest81ktimersoftd/020:55:110
1600299231,2cyclictest2953-21/usr/sbin/munin21:58:580
16002992310,4cyclictest0-21swapper/019:39:010
1600299230,11cyclictest24873-21ssh23:10:460
1600399228,13cyclictest0-21swapper/123:58:521
1600399224,3cyclictest0-21swapper/121:22:261
16003992216,5cyclictest643-21nscd21:24:561
16003992210,8cyclictest0-21swapper/121:14:001
16003992210,7cyclictest0-21swapper/122:38:591
16003992210,6cyclictest0-21swapper/123:39:001
16003992210,6cyclictest0-21swapper/121:48:591
16003992210,10cyclictest0-21swapper/119:48:551
16002992220,1cyclictest81ktimersoftd/022:35:550
16002992216,2cyclictest613-21apache219:49:350
16002992212,9cyclictest613-21apache223:59:030
16002992211,9cyclictest0-21swapper/020:38:530
16002992210,2cyclictest0-21swapper/019:43:530
16002992210,0cyclictest0-21swapper/021:30:300
1600299220,11cyclictest0-21swapper/021:48:540
1600399213,17cyclictest0-21swapper/121:09:031
1600399211,9cyclictest0-21swapper/122:23:191
16003992116,5cyclictest0-21swapper/121:43:141
16003992112,8cyclictest27387-21ssh21:48:131
16003992110,7cyclictest0-21swapper/122:37:341
16003992110,7cyclictest0-21swapper/100:27:021
16003992110,6cyclictest0-21swapper/123:45:041
16003992110,5cyclictest0-21swapper/122:53:581
16003992110,3cyclictest0-21swapper/100:07:161
16003992110,1cyclictest0-21swapper/122:00:051
16003992110,1cyclictest0-21swapper/120:53:451
16003992110,0cyclictest0-21swapper/100:08:531
1600299214,7cyclictest0-21swapper/023:50:470
16002992121,0cyclictest0-21swapper/022:54:100
16002992119,1cyclictest17247-21latency21:33:560
16002992117,4cyclictest613-21apache221:25:310
16002992115,5cyclictest0-21swapper/023:22:120
16002992113,2cyclictest18336-21if_err_eth022:18:560
16002992110,8cyclictest0-21swapper/000:25:010
16002992110,6cyclictest0-21swapper/022:28:050
16002992110,6cyclictest0-21swapper/020:03:420
16002992110,5cyclictest0-21swapper/021:10:330
16002992110,3cyclictest0-21swapper/021:22:100
1600299210,13cyclictest0-21swapper/021:14:560
1600399206,8cyclictest0-21swapper/121:33:511
1600399206,10cyclictest0-21swapper/120:13:541
1600399205,8cyclictest0-21swapper/120:38:551
16003992016,4cyclictest19800-21kworker/1:022:44:231
16003992010,5cyclictest0-21swapper/123:24:011
16003992010,3cyclictest0-21swapper/123:08:521
16002992020,0cyclictest0-21swapper/021:46:360
16002992018,1cyclictest5474-21hddtemp_smartct23:28:550
16002992013,6cyclictest10251-1kworker/u5:100:23:330
16002992011,9cyclictest0-21swapper/023:36:440
16002992010,2cyclictest0-21swapper/020:33:410
16002992010,0cyclictest0-21swapper/020:22:030
1600299200,13cyclictest0-21swapper/020:33:590
1591222010,0sleep00-21swapper/023:43:320
1600399194,9cyclictest0-21swapper/120:08:591
1600399192,11cyclictest0-21swapper/120:58:581
1600399192,11cyclictest0-21swapper/119:33:541
16003991918,1cyclictest231ktimersoftd/123:31:361
16003991912,4cyclictest100150irq/106-eth1-rx23:00:041
16003991911,6cyclictest0-21swapper/120:29:021
16003991911,5cyclictest100250irq/107-eth1-rx22:29:341
16003991911,1cyclictest20802-21missed_timers20:43:571
16003991910,5cyclictest100250irq/107-eth1-rx23:18:441
16003991910,1cyclictest0-21swapper/123:08:361
1600299196,10cyclictest0-21swapper/000:18:310
1600299194,7cyclictest29568-21diskmemload23:43:580
1600299193,11cyclictest0-21swapper/019:13:560
1600299193,10cyclictest4030-21/usr/sbin/munin22:43:530
1600299192,6cyclictest0-21swapper/019:53:530
16002991911,4cyclictest0-21swapper/021:03:580
16002991910,4cyclictest0-21swapper/020:43:550
16002991910,3cyclictest0-21swapper/019:28:420
1600299190,8cyclictest0-21swapper/022:33:090
1600299190,12cyclictest0-21swapper/022:59:020
838021810,0sleep00-21swapper/020:12:570
1600399183,10cyclictest0-21swapper/120:33:541
1600399182,7cyclictest0-21swapper/119:08:531
16003991813,3cyclictest613-21apache222:24:121
16003991812,5cyclictest0-21swapper/121:55:241
16003991810,7cyclictest0-21swapper/100:14:261
16003991810,5cyclictest0-21swapper/100:30:091
1600399180,14cyclictest0-21swapper/122:10:051
16002991814,2cyclictest613-21apache200:29:000
1600299181,16cyclictest0-21swapper/000:35:220
16002991811,3cyclictest100150irq/106-eth1-rx21:55:000
16002991810,5cyclictest0-21swapper/000:07:250
16002991810,4cyclictest0-21swapper/019:34:220
1600399176,7cyclictest0-21swapper/120:04:001
1600399172,6cyclictest13575-21timerandwakeup20:24:021
16003991710,4cyclictest0-21swapper/119:23:521
16002991714,2cyclictest0-21swapper/020:23:590
16002991710,3cyclictest0-21swapper/020:04:020
16002991710,1cyclictest0-21swapper/022:03:440
1600399164,5cyclictest20889-21/usr/sbin/munin19:19:001
16003991610,3cyclictest0-21swapper/120:18:581
16003991610,3cyclictest0-21swapper/119:33:381
16003991610,1cyclictest0-21swapper/120:51:381
16002991610,2cyclictest0-21swapper/020:13:540
16002991610,1cyclictest0-21swapper/019:18:530
1600399155,6cyclictest0-21swapper/119:58:531
1600399152,6cyclictest0-21swapper/119:38:531
16003991510,4cyclictest613-21apache219:16:181
16003991410,1cyclictest0-21swapper/121:04:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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