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2026-06-18 - 06:40
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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 Thu Jun 18, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1160127952,22sleep10-21swapper/119:04:331
1160326957,8sleep00-21swapper/019:04:340
12177993131,0cyclictest0-21swapper/123:42:061
1217799291,26cyclictest0-21swapper/122:27:241
12177992823,4cyclictest0-21swapper/121:08:551
12177992810,14cyclictest0-21swapper/121:31:371
1217699280,27cyclictest12161-21kworker/0:221:48:040
12177992710,6cyclictest0-21swapper/121:49:011
12176992726,0cyclictest0-21swapper/000:20:140
12176992710,16cyclictest0-21swapper/022:19:030
12176992710,11cyclictest0-21swapper/000:05:430
1217799260,24cyclictest14599-21kworker/1:020:35:211
12176992615,10cyclictest12161-21kworker/0:221:02:060
12176992610,15cyclictest25150-21kworker/0:223:42:180
1217799254,14cyclictest0-21swapper/122:46:161
12177992518,5cyclictest25805-21diskmemload23:16:361
12177992510,6cyclictest0-21swapper/100:03:521
1217699259,16cyclictest12161-21kworker/0:220:51:000
12176992525,0cyclictest0-21swapper/021:17:330
12176992520,5cyclictest24987-21apache221:23:190
1217699251,23cyclictest26543-21/usr/sbin/munin21:08:540
1217699251,23cyclictest25150-21kworker/0:223:44:160
12177992418,5cyclictest0-21swapper/122:16:331
12177992418,5cyclictest0-21swapper/122:16:331
12177992415,4cyclictest24987-21apache222:03:111
1217699248,15cyclictest2886-21kworker/0:020:26:200
1217699246,18cyclictest12161-21kworker/0:221:54:220
1217699246,17cyclictest2886-21kworker/0:019:30:140
1217699244,14cyclictest0-21swapper/022:13:590
1217699244,14cyclictest0-21swapper/022:13:590
12176992419,4cyclictest2886-21kworker/0:019:47:560
12176992417,5cyclictest25014-21apache223:53:140
1217699240,23cyclictest2886-21kworker/0:020:22:220
1217799233,12cyclictest0-21swapper/123:51:541
12177992310,9cyclictest0-21swapper/123:53:511
12177992310,7cyclictest0-21swapper/121:03:591
12177992310,6cyclictest0-21swapper/119:53:541
1217699233,19cyclictest12161-21kworker/0:221:04:580
12176992310,7cyclictest0-21swapper/019:58:590
12176992310,4cyclictest0-21swapper/022:04:090
12177992222,0cyclictest0-21swapper/100:03:281
12177992218,3cyclictest17938-21kworker/u4:122:07:081
12177992214,3cyclictest0-21swapper/123:01:331
1217699226,10cyclictest0-21swapper/021:23:590
1217699225,16cyclictest9179-21kworker/0:022:26:460
1217699224,3cyclictest5737-21unixbench_multi23:33:590
1217699224,17cyclictest12161-21kworker/0:221:35:460
12176992217,3cyclictest81ktimersoftd/019:13:510
12176992210,7cyclictest0-21swapper/023:21:220
12176992210,4cyclictest0-21swapper/000:24:510
1217799214,8cyclictest0-21swapper/119:28:501
12177992120,1cyclictest0-21swapper/119:48:581
12177992118,2cyclictest31438-21/usr/sbin/munin19:58:561
12177992118,2cyclictest0-21swapper/123:46:081
12177992117,3cyclictest24987-21apache222:30:591
12177992116,3cyclictest0-21swapper/121:40:171
12177992110,9cyclictest0-21swapper/120:39:201
1217799210,9cyclictest0-21swapper/122:08:571
1217699219,8cyclictest167-21systemd-journal21:58:560
12176992113,6cyclictest0-21swapper/022:49:490
12176992110,5cyclictest0-21swapper/023:08:520
12176992110,4cyclictest0-21swapper/023:23:520
1217699210,5cyclictest0-21swapper/000:13:530
1756222010,0sleep10-21swapper/100:36:081
1217799206,10cyclictest0-21swapper/120:48:511
1217799205,8cyclictest0-21swapper/100:18:501
1217799204,11cyclictest0-21swapper/100:28:491
1217799204,10cyclictest0-21swapper/122:53:501
1217799204,10cyclictest0-21swapper/120:23:531
1217799202,4cyclictest0-21swapper/123:18:561
12177992018,1cyclictest1074-21diskstats23:28:511
12177992010,5cyclictest0-21swapper/123:09:281
12177992010,5cyclictest0-21swapper/119:35:491
12177992010,1cyclictest0-21swapper/100:09:151
1217699209,7cyclictest22781-21memory23:13:550
1217699205,12cyclictest0-21swapper/000:28:510
12176992018,1cyclictest636-21nscd00:08:480
12176992016,3cyclictest25014-21apache200:35:020
12176992016,2cyclictest1199-21runrttasks20:13:250
12176992012,2cyclictest0-21swapper/000:01:320
12176992011,9cyclictest2886-21kworker/0:019:12:520
12176992010,7cyclictest0-21swapper/023:29:480
12176992010,6cyclictest0-21swapper/022:39:030
12176992010,5cyclictest19047-21kworker/u4:023:08:090
12176992010,4cyclictest0-21swapper/022:58:510
2644721910,0sleep00-21swapper/022:34:050
198921910,0sleep00-21swapper/022:45:310
1217799199,9cyclictest0-21swapper/123:23:511
1217799193,8cyclictest0-21swapper/120:08:551
1217799193,1cyclictest0-21swapper/100:15:321
12177991918,0cyclictest100250irq/107-eth1-rx21:13:411
12177991911,3cyclictest0-21swapper/123:03:561
12177991910,6cyclictest0-21swapper/120:43:501
12177991910,4cyclictest0-21swapper/122:18:531
12177991910,4cyclictest0-21swapper/119:23:501
12177991910,2cyclictest0-21swapper/121:23:301
1217799190,2cyclictest0-21swapper/119:09:001
12176991919,0cyclictest0-21swapper/021:28:520
12176991919,0cyclictest0-21swapper/020:57:020
12176991913,5cyclictest744-21snmpd23:58:380
12176991911,8cyclictest2886-21kworker/0:020:17:340
12176991910,6cyclictest0-21swapper/022:30:060
1217699190,14cyclictest0-21swapper/020:28:530
711821810,0sleep10-21swapper/122:53:331
1217799187,6cyclictest5074-21irqstats23:33:541
1217799184,11cyclictest0-21swapper/120:18:531
1217799184,10cyclictest0-21swapper/119:43:591
1217799183,9cyclictest0-21swapper/122:33:591
1217799183,10cyclictest0-21swapper/119:38:521
1217799182,15cyclictest0-21swapper/121:33:591
12177991818,0cyclictest100250irq/107-eth1-rx00:26:141
12177991817,1cyclictest0-21swapper/120:13:551
12177991817,0cyclictest100250irq/107-eth1-rx22:43:271
12177991811,5cyclictest100150irq/106-eth1-rx21:56:551
12177991810,3cyclictest0-21swapper/121:47:141
12177991810,3cyclictest0-21swapper/121:25:271
1217699186,10cyclictest0-21swapper/022:08:570
12176991811,7cyclictest2886-21kworker/0:019:28:180
12176991810,5cyclictest0-21swapper/021:53:040
12176991810,3cyclictest0-21swapper/020:43:580
12176991810,3cyclictest0-21swapper/020:40:470
12176991810,3cyclictest0-21swapper/019:33:400
1217799174,10cyclictest0-21swapper/119:15:361
12177991710,5cyclictest0-21swapper/120:03:401
1217699175,7cyclictest12489-21apache_volume20:33:510
12176991710,3cyclictest0-21swapper/022:53:570
12176991710,3cyclictest0-21swapper/019:22:180
12176991710,2cyclictest0-21swapper/020:03:530
1217699170,1cyclictest0-21swapper/021:40:070
1217699170,16cyclictest2886-21kworker/0:019:39:580
1217799163,8cyclictest0-21swapper/120:28:521
1217799163,6cyclictest0-21swapper/120:58:551
12177991612,2cyclictest12174-21cyclictest20:55:501
12176991611,3cyclictest0-21swapper/019:50:420
12176991610,4cyclictest0-21swapper/019:54:000
1217799151,8cyclictest0-21swapper/119:18:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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