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2026-07-08 - 21:56
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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 highest latencies:
System rackcslot2.osadl.org (updated Wed Jul 08, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1541927250,17sleep00-21swapper/007:06:400
1539826850,8sleep10-21swapper/107:06:291
181772660,2sleep01577199cyclictest09:32:150
12722630,1sleep10-21swapper/111:48:481
15772993310,20cyclictest0-21swapper/110:28:381
15772993112,3cyclictest0-21swapper/112:31:421
15772993010,1cyclictest0-21swapper/112:27:181
1577299300,29cyclictest0-21swapper/111:41:501
15771993030,0cyclictest0-21swapper/012:06:020
15772992811,9cyclictest0-21swapper/111:06:411
1577199281,1cyclictest29743-21diskmemload10:53:010
1577299273,23cyclictest14701-21df08:28:381
15771992713,9cyclictest100250irq/107-eth1-rx11:33:270
15771992710,10cyclictest0-21swapper/010:22:340
1577199270,24cyclictest0-21swapper/010:12:570
2189222610,0sleep00-21swapper/010:54:390
15772992610,9cyclictest0-21swapper/107:23:301
15771992610,10cyclictest0-21swapper/011:56:120
1577299250,0cyclictest0-21swapper/110:50:521
15771992510,8cyclictest0-21swapper/009:38:540
15772992415,4cyclictest0-21swapper/112:05:081
15772992415,2cyclictest0-21swapper/111:24:381
15772992410,11cyclictest0-21swapper/108:05:191
15771992422,1cyclictest81ktimersoftd/011:17:080
15771992419,4cyclictest25657-21apache212:28:340
1577199241,22cyclictest0-21swapper/009:46:470
15771992410,10cyclictest0-21swapper/008:27:130
1577299233,2cyclictest0-21swapper/112:14:571
15772992323,0cyclictest0-21swapper/109:45:161
15772992318,3cyclictest231ktimersoftd/109:38:421
15772992317,3cyclictest15769-21cyclictest10:13:481
15772992310,0cyclictest0-21swapper/108:54:411
1577299230,4cyclictest0-21swapper/107:08:401
1577199233,11cyclictest0-21swapper/007:38:400
15771992320,3cyclictest25657-21apache211:02:120
15771992314,5cyclictest636-21nscd11:45:330
15771992310,5cyclictest0-21swapper/010:23:410
15772992219,2cyclictest14531-21sh10:06:381
15772992217,0cyclictest0-21swapper/110:25:521
15772992210,0cyclictest0-21swapper/109:25:381
1577199226,10cyclictest0-21swapper/009:33:400
1577199225,10cyclictest0-21swapper/009:18:450
1577199223,13cyclictest0-21swapper/009:03:460
15771992210,7cyclictest0-21swapper/007:33:300
15771992210,4cyclictest0-21swapper/009:16:560
15771992210,1cyclictest0-21swapper/009:25:520
15772992120,1cyclictest26377-21munin-node11:30:431
15772992118,3cyclictest25657-21apache210:47:051
15772992117,3cyclictest25657-21apache210:42:131
15772992111,5cyclictest100250irq/107-eth1-rx09:13:191
15772992110,8cyclictest0-21swapper/111:54:451
15772992110,8cyclictest0-21swapper/111:15:061
15772992110,11cyclictest0-21swapper/110:36:521
15772992110,0cyclictest0-21swapper/111:12:211
1577199215,12cyclictest26690-21taskset12:19:570
15771992121,0cyclictest0-21swapper/012:10:130
1577199211,4cyclictest0-21swapper/011:04:400
15771992112,6cyclictest25657-21apache210:02:580
15771992110,6cyclictest0-21swapper/007:58:470
15771992110,4cyclictest0-21swapper/010:05:000
15771992110,3cyclictest0-21swapper/008:18:440
15771992110,1cyclictest0-21swapper/009:11:070
1577199210,20cyclictest0-21swapper/010:36:480
3100922010,0sleep10-21swapper/107:44:571
2790922010,0sleep10-21swapper/112:22:261
1577299203,1cyclictest0-21swapper/109:20:261
15772992019,0cyclictest0-21swapper/112:09:091
15772992018,1cyclictest5358-21ssh09:55:141
15772992017,1cyclictest9439-21ls11:58:481
1577299201,16cyclictest24074-21kworker/1:207:19:081
15772992010,7cyclictest0-21swapper/110:13:171
15772992010,2cyclictest0-21swapper/107:33:461
15772992010,0cyclictest0-21swapper/108:12:031
1577299200,3cyclictest0-21swapper/111:34:251
15771992018,1cyclictest0-21swapper/011:19:390
15771992010,7cyclictest22846-21ssh11:36:170
15771992010,7cyclictest0-21swapper/012:33:440
15771992010,6cyclictest0-21swapper/010:15:530
15771992010,3cyclictest0-21swapper/011:38:310
15771992010,3cyclictest0-21swapper/010:28:430
1577299195,7cyclictest636-21nscd11:45:211
1577299193,9cyclictest0-21swapper/110:58:381
1577299193,3cyclictest0-21swapper/110:57:031
15772991916,2cyclictest0-21swapper/109:28:591
15772991910,5cyclictest0-21swapper/107:28:401
15772991910,1cyclictest0-21swapper/109:33:451
15772991910,1cyclictest0-21swapper/109:14:381
1577199197,4cyclictest15792-21apache_accesses07:08:390
1577199194,11cyclictest0-21swapper/008:33:420
1577199192,9cyclictest0-21swapper/007:53:430
15771991917,1cyclictest81ktimersoftd/007:51:430
15771991917,1cyclictest636-21nscd08:28:390
15771991912,7cyclictest0-21swapper/010:40:520
15771991910,6cyclictest0-21swapper/012:26:590
15771991910,4cyclictest0-21swapper/011:27:440
15771991910,4cyclictest0-21swapper/008:13:390
15771991910,3cyclictest0-21swapper/009:55:070
15771991910,2cyclictest0-21swapper/011:58:490
15771991910,0cyclictest0-21swapper/009:48:400
1577299182,11cyclictest0-21swapper/110:18:381
15772991816,2cyclictest25657-21apache208:00:121
15772991814,3cyclictest100150irq/106-eth1-rx09:58:411
15772991810,4cyclictest0-21swapper/109:51:131
15772991810,4cyclictest0-21swapper/108:13:441
15772991810,3cyclictest0-21swapper/108:43:411
15772991810,3cyclictest0-21swapper/108:18:411
15772991810,2cyclictest0-21swapper/107:48:391
15772991810,1cyclictest0-21swapper/109:00:331
15771991815,2cyclictest18308-21apache207:29:490
15771991815,2cyclictest18286-21apache207:25:090
15771991815,2cyclictest15769-21cyclictest11:51:410
15771991812,2cyclictest0-21swapper/012:14:120
15771991810,4cyclictest0-21swapper/010:44:110
15771991810,4cyclictest0-21swapper/008:04:010
15771991810,4cyclictest0-21swapper/007:13:430
15771991810,3cyclictest0-21swapper/008:48:440
15771991810,2cyclictest0-21swapper/008:38:470
1577299174,7cyclictest27985-21apache_processe09:03:391
1577299174,7cyclictest0-21swapper/108:48:451
1577299172,8cyclictest0-21swapper/108:38:481
15772991711,3cyclictest25657-21apache207:57:571
15772991710,4cyclictest0-21swapper/107:17:551
15772991710,1cyclictest0-21swapper/111:19:491
1577299170,3cyclictest0-21swapper/112:33:471
1577199173,5cyclictest24085-21/usr/sbin/munin08:53:400
15771991711,4cyclictest81ktimersoftd/011:09:170
15771991710,4cyclictest25744-21kworker/0:207:46:490
2144121610,1sleep00-21swapper/007:23:270
15772991610,2cyclictest0-21swapper/107:38:411
1577199164,4cyclictest20476-21diskstats08:43:410
15771991612,3cyclictest1199-21runrttasks08:11:530
15771991611,4cyclictest25744-21kworker/0:209:01:050
1577299153,5cyclictest0-21swapper/108:23:381
15772991510,3cyclictest0-21swapper/108:33:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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