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2026-05-14 - 15:56
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Thu May 14, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2548327157,9sleep10-21swapper/107:05:011
2542726832,31sleep00-21swapper/007:04:260
65002520,2sleep00-21swapper/007:39:150
26041993131,0cyclictest0-21swapper/110:35:421
26041992810,16cyclictest0-21swapper/112:19:101
2604099289,18cyclictest0-21swapper/011:07:020
26041992710,3cyclictest0-21swapper/112:09:071
2604199270,20cyclictest0-21swapper/110:16:511
26040992712,8cyclictest0-21swapper/011:24:070
26041992614,8cyclictest100250irq/107-eth1-rx11:58:541
26040992610,6cyclictest0-21swapper/009:21:270
26041992524,1cyclictest3499-21apache209:13:131
26041992510,13cyclictest0-21swapper/112:27:391
26040992519,5cyclictest3499-21apache210:26:500
26041992424,0cyclictest0-21swapper/111:05:091
26041992419,3cyclictest0-21swapper/110:23:471
26041992410,7cyclictest0-21swapper/109:27:251
26041992410,10cyclictest0-21swapper/112:03:531
26040992411,8cyclictest10050irq/110-ahci[0012:23:560
26040992411,7cyclictest0-21swapper/012:04:450
26041992310,6cyclictest0-21swapper/108:34:091
2604099236,10cyclictest0-21swapper/011:34:100
26040992321,1cyclictest3473-21apache209:28:020
26040992318,3cyclictest81ktimersoftd/010:59:500
26040992310,12cyclictest0-21swapper/012:31:250
2604099230,11cyclictest0-21swapper/007:49:070
26041992218,3cyclictest3499-21apache212:04:571
26041992217,4cyclictest3499-21apache207:37:181
26041992216,4cyclictest636-21nscd10:32:071
26041992210,5cyclictest100450irq/109-eth1-tx07:14:001
26041992210,4cyclictest0-21swapper/110:46:381
2604099227,14cyclictest0-21swapper/010:21:440
2604099222,12cyclictest0-21swapper/011:19:150
26040992218,2cyclictest3473-21apache209:44:480
26040992216,2cyclictest13629-21lockfile-create09:58:560
26040992212,4cyclictest11783-21/usr/sbin/munin09:14:140
26040992210,6cyclictest0-21swapper/011:40:280
26040992210,6cyclictest0-21swapper/009:39:170
2604099220,21cyclictest0-21swapper/009:34:090
2059222210,1sleep00-21swapper/011:33:280
199102220,0sleep10-21swapper/110:49:091
2604199214,14cyclictest0-21swapper/112:29:141
26041992121,0cyclictest0-21swapper/111:14:011
26041992120,1cyclictest0-21swapper/109:30:231
26041992119,1cyclictest20933-21ssh12:15:591
26041992116,2cyclictest0-21swapper/109:00:321
26041992115,5cyclictest3473-21apache209:43:441
26041992110,8cyclictest0-21swapper/109:44:091
26041992110,4cyclictest0-21swapper/109:54:001
26041992110,3cyclictest0-21swapper/109:59:001
2604199210,2cyclictest0-21swapper/111:10:341
26040992121,0cyclictest0-21swapper/011:49:240
26040992115,5cyclictest0-21swapper/010:32:150
26040992110,8cyclictest0-21swapper/011:57:090
26040992110,4cyclictest0-21swapper/009:51:450
2604199209,6cyclictest0-21swapper/111:39:091
2604199203,16cyclictest0-21swapper/111:47:271
2604199203,10cyclictest0-21swapper/107:39:071
26041992018,1cyclictest744-21snmpd10:24:261
26041992018,1cyclictest15285-21ssh09:18:291
26041992016,3cyclictest3499-21apache210:40:261
26041992013,3cyclictest0-21swapper/108:04:171
26041992010,7cyclictest0-21swapper/107:59:031
26041992010,5cyclictest0-21swapper/111:34:101
2604199200,11cyclictest0-21swapper/108:14:121
2604099205,8cyclictest0-21swapper/007:59:130
2604099205,11cyclictest0-21swapper/007:19:080
26040992020,0cyclictest0-21swapper/010:44:280
26040992018,1cyclictest0-21swapper/008:21:290
26040992017,1cyclictest0-21swapper/012:27:150
26040992014,4cyclictest3473-21apache212:34:480
26040992010,5cyclictest8692-21proc_pri09:09:170
26040992010,5cyclictest0-21swapper/010:42:470
26040992010,0cyclictest0-21swapper/009:06:280
2604099200,0cyclictest0-21swapper/010:58:200
2375622010,0sleep10-21swapper/108:24:181
1675722010,0sleep00-21swapper/010:02:400
3214921910,0sleep10-21swapper/108:48:511
317121910,0sleep10-21swapper/111:53:031
2604199197,9cyclictest167-21systemd-journal10:08:561
2604199195,7cyclictest7515-21diskmemload10:09:131
2604199193,10cyclictest8417-21/usr/sbin/munin07:44:141
26041991913,4cyclictest0-21swapper/107:24:011
2604199191,16cyclictest0-21swapper/107:49:071
26041991910,6cyclictest0-21swapper/110:54:101
26041991910,4cyclictest0-21swapper/108:09:041
26041991910,4cyclictest0-21swapper/107:20:441
26041991910,3cyclictest0-21swapper/109:04:091
26041991910,3cyclictest0-21swapper/108:19:091
2604099196,12cyclictest15183-21/usr/sbin/munin12:09:150
2604099196,12cyclictest0-21swapper/007:24:160
2604099193,13cyclictest0-21swapper/008:09:060
2604099193,11cyclictest0-21swapper/011:59:070
26040991913,3cyclictest100150irq/106-eth1-rx10:05:330
26040991912,2cyclictest3499-21apache208:59:460
26040991911,7cyclictest100450irq/109-eth1-tx10:37:160
26040991910,6cyclictest0-21swapper/010:12:190
26040991910,5cyclictest0-21swapper/008:34:170
2509821910,0sleep00-21swapper/010:14:060
1961021910,0sleep10-21swapper/111:31:251
2604199186,8cyclictest650-21nscd09:49:541
26041991815,3cyclictest3473-21apache212:35:261
26041991813,3cyclictest3499-21apache209:38:371
26041991810,4cyclictest0-21swapper/111:19:111
26041991810,4cyclictest0-21swapper/110:59:081
26041991810,4cyclictest0-21swapper/108:29:061
2604199180,10cyclictest1199-21runrttasks07:09:111
2604099182,11cyclictest30535-21seq11:45:330
2604099181,11cyclictest0-21swapper/007:44:150
26040991810,5cyclictest0-21swapper/012:18:090
26040991810,4cyclictest0-21swapper/008:54:150
26040991810,3cyclictest0-21swapper/011:09:030
26040991810,3cyclictest0-21swapper/009:29:060
26040991810,2cyclictest0-21swapper/008:08:560
2604199173,10cyclictest0-21swapper/108:49:121
26041991716,1cyclictest3473-21apache208:41:431
26041991712,2cyclictest3473-21apache209:19:061
26041991710,3cyclictest0-21swapper/111:25:281
26041991710,3cyclictest0-21swapper/108:54:241
2604099177,9cyclictest0-21swapper/007:09:100
26040991710,5cyclictest7-21ksoftirqd/007:33:570
26040991710,4cyclictest0-21swapper/011:15:590
2604099165,7cyclictest0-21swapper/008:44:120
26040991610,4cyclictest0-21swapper/010:50:530
26040991610,3cyclictest0-21swapper/008:39:080
26040991610,1cyclictest0-21swapper/008:25:100
26040991610,0cyclictest0-21swapper/007:29:200
2604199153,5cyclictest0-21swapper/107:29:131
2604199152,8cyclictest0-21swapper/107:54:141
2604099154,8cyclictest0-21swapper/007:14:120
2604099154,7cyclictest0-21swapper/008:29:080
2604099153,5cyclictest11934-21/usr/sbin/munin07:54:130
26040991511,3cyclictest0-21swapper/008:14:140
26040991510,1cyclictest0-21swapper/008:52:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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