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2026-06-05 - 19:37
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Fri Jun 05, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127672930,1sleep10-21swapper/110:54:301
1454027250,9sleep10-21swapper/107:07:541
1428927261,7sleep00-21swapper/007:05:150
273012650,1sleep10-21swapper/110:31:121
1480599301,23cyclictest0-21swapper/110:46:081
1480599296,22cyclictest0-21swapper/112:35:341
1480599280,28cyclictest0-21swapper/108:14:441
14804992810,10cyclictest0-21swapper/011:24:350
14805992610,10cyclictest0-21swapper/111:20:511
14805992610,10cyclictest0-21swapper/107:40:441
14804992624,1cyclictest636-21nscd10:26:060
1480499260,1cyclictest9970-21apache_volume12:18:550
1855622510,0sleep028734-21diskmemload09:36:450
14805992525,0cyclictest0-21swapper/107:57:501
14805992514,3cyclictest14802-21cyclictest09:22:361
14804992520,4cyclictest24708-21apache207:39:010
14804992510,1cyclictest0-21swapper/011:14:260
1480499250,1cyclictest0-21swapper/012:06:080
14805992414,3cyclictest0-21swapper/111:17:551
1480599241,18cyclictest0-21swapper/110:48:561
14805992410,0cyclictest0-21swapper/110:20:421
1480599240,22cyclictest0-21swapper/109:23:521
14804992417,5cyclictest24708-21apache210:37:150
14804992410,7cyclictest0-21swapper/009:30:560
1480599232,16cyclictest0-21swapper/108:28:571
14805992310,8cyclictest0-21swapper/111:55:111
1480499233,18cyclictest0-21swapper/010:05:540
1480499233,16cyclictest0-21swapper/010:53:580
14804992320,3cyclictest24708-21apache210:22:390
14804992318,4cyclictest24708-21apache212:26:440
14804992315,5cyclictest100250irq/107-eth1-rx09:48:590
14804992310,1cyclictest0-21swapper/010:00:040
14804992310,0cyclictest0-21swapper/008:11:190
1480499230,14cyclictest0-21swapper/010:08:510
1480599222,13cyclictest0-21swapper/110:33:571
14805992215,5cyclictest802-21apache211:02:351
1480499224,7cyclictest23305-21munin-run09:43:460
14804992220,1cyclictest18020-21users07:14:060
14804992212,3cyclictest0-21swapper/011:40:130
14804992211,4cyclictest0-21swapper/010:58:580
14804992210,8cyclictest28734-21diskmemload11:28:580
14804992210,7cyclictest0-21swapper/012:15:260
14804992210,5cyclictest0-21swapper/011:48:560
14804992210,12cyclictest0-21swapper/007:23:580
1480599216,7cyclictest28734-21diskmemload09:44:171
1480599215,9cyclictest0-21swapper/112:04:011
1480599214,9cyclictest0-21swapper/109:08:591
1480599213,14cyclictest0-21swapper/107:49:071
14805992120,1cyclictest24708-21apache211:10:541
14805992116,4cyclictest744-21snmpd07:37:121
14805992113,2cyclictest0-21swapper/111:35:341
14805992112,4cyclictest0-21swapper/109:56:471
1480599211,19cyclictest0-21swapper/111:53:451
14805992110,5cyclictest0-21swapper/110:27:071
14804992121,0cyclictest0-21swapper/010:40:150
14804992120,1cyclictest24708-21apache211:08:030
14804992118,2cyclictest0-21swapper/007:44:040
14804992113,1cyclictest0-21swapper/009:58:060
1480599205,10cyclictest0-21swapper/108:34:001
1480599204,9cyclictest3144-21rm12:09:001
1480599203,8cyclictest0-21swapper/110:38:591
1480599203,6cyclictest7408-21python10:04:061
14805992012,6cyclictest100250irq/107-eth1-rx09:53:381
14805992012,4cyclictest0-21swapper/108:03:461
14805992010,7cyclictest0-21swapper/110:02:161
14805992010,5cyclictest0-21swapper/111:48:361
14805992010,4cyclictest5889-1kworker/u5:209:29:121
1480599200,19cyclictest17128-21ssh10:18:101
1480499208,8cyclictest0-21swapper/009:15:150
1480499208,11cyclictest24632-21kworker/0:007:35:460
1480499203,9cyclictest0-21swapper/011:54:020
1480499203,9cyclictest0-21swapper/007:49:060
14804992011,5cyclictest0-21swapper/010:14:590
1480499200,11cyclictest0-21swapper/007:54:050
1508521910,0sleep10-21swapper/111:41:441
1480599195,5cyclictest0-21swapper/109:39:251
1480599194,11cyclictest0-21swapper/107:24:011
14805991911,6cyclictest100150irq/106-eth1-rx09:17:071
14805991910,8cyclictest0-21swapper/112:18:571
14805991910,7cyclictest0-21swapper/108:18:581
14805991910,2cyclictest0-21swapper/111:28:501
14805991910,2cyclictest0-21swapper/110:09:011
14805991910,1cyclictest0-21swapper/111:24:171
1480599190,16cyclictest0-21swapper/112:16:561
1480599190,13cyclictest0-21swapper/108:04:031
1480499195,12cyclictest0-21swapper/008:33:590
1480499194,9cyclictest0-21swapper/008:18:570
1480499192,13cyclictest0-21swapper/011:23:060
1480499191,17cyclictest27892-21irqstats11:58:590
14804991911,4cyclictest0-21swapper/008:49:050
14804991911,3cyclictest0-21swapper/009:19:030
14804991910,5cyclictest0-21swapper/008:04:060
14804991910,4cyclictest0-21swapper/009:04:500
14804991910,1cyclictest0-21swapper/010:33:330
1825621810,0sleep10-21swapper/109:36:061
1480599186,9cyclictest0-21swapper/107:18:561
14805991816,1cyclictest24708-21apache211:59:011
1480599181,12cyclictest0-21swapper/107:28:571
1480599181,10cyclictest19746-21taskset12:31:121
1480599181,10cyclictest0-21swapper/107:09:031
14805991810,4cyclictest0-21swapper/112:23:581
1480499184,6cyclictest636-21nscd09:10:380
1480499184,10cyclictest0-21swapper/008:03:140
1480499183,8cyclictest0-21swapper/010:49:030
1480499182,12cyclictest0-21swapper/008:59:010
14804991813,4cyclictest24708-21apache212:32:080
14804991813,2cyclictest100250irq/107-eth1-rx11:46:140
14804991810,6cyclictest0-21swapper/011:34:190
14804991810,3cyclictest0-21swapper/012:08:510
14804991810,2cyclictest0-21swapper/009:48:430
2277921710,0sleep10-21swapper/108:52:331
1480599178,8cyclictest0-21swapper/108:09:001
1480599177,6cyclictest0-21swapper/107:14:061
14805991712,3cyclictest24678-21apache208:43:281
14805991710,4cyclictest0-21swapper/109:03:561
1480499175,7cyclictest0-21swapper/007:29:460
1480499172,9cyclictest0-21swapper/008:13:570
14804991713,3cyclictest8426-21grep09:23:590
14804991712,2cyclictest24678-21apache211:12:180
14804991710,5cyclictest100150irq/106-eth1-rx12:35:160
14804991710,3cyclictest0-21swapper/008:28:300
14804991710,2cyclictest0-21swapper/008:53:580
14804991710,1cyclictest0-21swapper/008:44:060
1480599166,6cyclictest0-21swapper/108:23:571
1480599166,4cyclictest0-21swapper/108:43:591
1480599164,5cyclictest18733-21/usr/sbin/munin11:04:011
1480599161,11cyclictest0-21swapper/107:44:071
14805991610,4cyclictest0-21swapper/108:58:561
1480599160,8cyclictest0-21swapper/108:53:571
1480499164,8cyclictest0-21swapper/008:43:460
1480499163,5cyclictest4518-21ssh10:44:010
14804991616,0cyclictest0-21swapper/007:13:460
14804991610,1cyclictest0-21swapper/007:18:560
14804991510,5cyclictest0-21swapper/008:28:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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