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2026-03-10 - 14:16
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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 Tue Mar 10, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115627249,17sleep10-21swapper/119:04:451
207226853,10sleep00-21swapper/019:09:120
7562650,0sleep10-21swapper/121:31:141
24082650,0sleep10-21swapper/122:18:011
75142600,1sleep17510-21timerandwakeup20:44:471
2273994040,0cyclictest0-21swapper/021:23:440
2274993535,0cyclictest0-21swapper/123:55:381
2273993230,1cyclictest7-21ksoftirqd/019:54:250
2273993210,16cyclictest0-21swapper/021:48:460
227399300,4cyclictest0-21swapper/023:22:070
227399286,20cyclictest0-21swapper/022:19:060
227399280,5cyclictest0-21swapper/021:30:160
227399280,27cyclictest0-21swapper/021:39:460
2273992726,0cyclictest0-21swapper/021:35:410
2273992710,12cyclictest0-21swapper/000:29:380
2274992620,3cyclictest21002-21apache221:44:521
227499260,24cyclictest7032-21kworker/u4:223:50:171
2273992626,0cyclictest0-21swapper/020:50:380
2273992610,3cyclictest0-21swapper/022:14:250
2274992510,1cyclictest0-21swapper/123:09:421
227399257,9cyclictest0-21swapper/023:39:370
2273992510,8cyclictest0-21swapper/000:07:330
2274992424,0cyclictest0-21swapper/122:20:411
2274992419,2cyclictest20974-21apache200:33:381
2274992410,12cyclictest0-21swapper/100:04:341
2274992410,10cyclictest0-21swapper/121:50:131
227499240,9cyclictest0-21swapper/121:04:381
227399246,11cyclictest0-21swapper/020:19:460
2273992410,6cyclictest0-21swapper/022:25:210
227399240,21cyclictest0-21swapper/021:59:420
227499239,13cyclictest6356-21kworker/u4:100:20:191
227499235,17cyclictest0-21swapper/123:19:371
2274992323,0cyclictest0-21swapper/100:15:211
2274992317,4cyclictest802-21apache200:02:311
2274992313,5cyclictest21902-21ssh21:15:521
227399235,17cyclictest0-21swapper/019:09:390
2273992321,1cyclictest773-21sshd20:34:430
2273992310,8cyclictest0-21swapper/022:19:390
2274992220,1cyclictest20974-21apache222:43:261
2274992218,3cyclictest20974-21apache222:55:491
227499220,15cyclictest0-21swapper/120:34:461
227399229,12cyclictest15591-21awk19:44:260
227399223,4cyclictest0-21swapper/022:50:220
2273992211,7cyclictest100150irq/106-eth1-rx21:50:410
227399221,13cyclictest0-21swapper/020:59:370
2273992210,6cyclictest0-21swapper/020:29:260
2273992210,5cyclictest0-21swapper/023:09:390
423922110,0sleep00-21swapper/000:34:350
2274992116,3cyclictest21002-21apache221:12:231
2274992112,5cyclictest21002-21apache222:28:351
2274992110,5cyclictest0-21swapper/100:34:371
2274992110,2cyclictest19557-21/usr/sbin/munin19:54:411
227399213,11cyclictest0-21swapper/023:44:370
2273992120,1cyclictest20974-21apache223:53:080
2273992110,8cyclictest0-21swapper/019:34:420
2273992110,5cyclictest0-21swapper/023:25:440
2273992110,2cyclictest0-21swapper/021:59:250
2273992110,1cyclictest0-21swapper/023:31:580
227499206,10cyclictest0-21swapper/121:39:371
2274992018,1cyclictest0-21swapper/123:14:421
2274992012,6cyclictest21002-21apache222:50:551
2274992010,4cyclictest0-21swapper/100:09:391
227499200,20cyclictest0-21swapper/122:13:021
227399203,8cyclictest0-21swapper/021:04:400
2273992019,1cyclictest20974-21apache223:04:120
2273992017,2cyclictest21002-21apache200:13:160
2273992015,4cyclictest100150irq/106-eth1-rx22:54:450
2273992015,1cyclictest0-21swapper/022:35:000
2273992010,5cyclictest0-21swapper/023:54:460
2273992010,5cyclictest0-21swapper/000:15:520
2273992010,4cyclictest0-21swapper/021:24:340
2273992010,3cyclictest0-21swapper/023:07:130
227399200,10cyclictest0-21swapper/019:59:450
1155422010,0sleep00-21swapper/023:59:330
227499197,8cyclictest0-21swapper/122:34:371
227499194,13cyclictest0-21swapper/121:19:331
227499193,9cyclictest0-21swapper/123:29:371
2274991917,1cyclictest100450irq/109-eth1-tx21:59:451
2274991915,2cyclictest21002-21apache219:46:201
2274991914,4cyclictest21002-21apache221:37:461
2274991910,5cyclictest0-21swapper/122:49:221
2274991910,4cyclictest0-21swapper/123:44:381
2274991910,3cyclictest0-21swapper/120:14:451
227399195,7cyclictest4654-21/usr/sbin/munin19:14:400
227399194,10cyclictest0-21swapper/022:44:480
227399192,8cyclictest0-21swapper/000:24:410
2273991917,2cyclictest802-21apache220:56:280
2273991917,1cyclictest0-21swapper/022:34:100
2273991915,3cyclictest15369-21munin-node20:14:420
2273991911,4cyclictest0-21swapper/019:54:300
2273991911,3cyclictest0-21swapper/019:29:410
2273991911,0cyclictest100350irq/108-eth1-tx21:12:430
2273991910,2cyclictest0-21swapper/021:17:440
227499187,7cyclictest0-21swapper/100:24:361
227499183,11cyclictest0-21swapper/123:24:361
227499182,11cyclictest0-21swapper/120:59:441
2274991811,5cyclictest0-21swapper/120:24:441
2274991810,4cyclictest0-21swapper/123:34:431
2274991810,4cyclictest0-21swapper/120:29:381
2274991810,4cyclictest0-21swapper/120:19:371
2274991810,3cyclictest0-21swapper/120:54:371
2274991810,2cyclictest0-21swapper/122:04:461
2274991810,1cyclictest0-21swapper/120:10:481
2274991810,1cyclictest0-21swapper/119:09:451
2274991810,0cyclictest0-21swapper/122:29:451
227499180,17cyclictest9241-21kworker/1:019:39:291
227399184,8cyclictest744-21snmpd23:34:390
227399182,10cyclictest0-21swapper/022:04:380
227399181,11cyclictest0-21swapper/020:09:400
2273991810,4cyclictest0-21swapper/019:24:430
2273991810,3cyclictest0-21swapper/019:44:420
2273991810,2cyclictest0-21swapper/020:04:380
2273991810,1cyclictest0-21swapper/023:16:140
227499175,7cyclictest0-21swapper/119:59:361
227499173,6cyclictest9973-21/usr/sbin/munin19:29:421
2274991716,1cyclictest0-21swapper/121:58:301
2274991710,5cyclictest0-21swapper/123:01:521
2274991710,4cyclictest0-21swapper/120:49:381
2274991710,4cyclictest0-21swapper/120:04:421
2274991710,3cyclictest0-21swapper/123:43:211
2274991710,3cyclictest0-21swapper/123:04:381
2274991710,2cyclictest0-21swapper/121:24:381
2274991710,2cyclictest0-21swapper/119:24:361
227399173,9cyclictest1937-21/usr/sbin/munin20:29:460
227399173,6cyclictest6767-21fschecks_time20:44:400
227399172,8cyclictest0-21swapper/000:19:410
2273991710,3cyclictest0-21swapper/020:39:380
227499167,4cyclictest12149-21/usr/sbin/munin19:34:381
2274991610,3cyclictest0-21swapper/120:39:461
227399162,8cyclictest0-21swapper/022:39:380
227499155,4cyclictest18776-21ls19:49:471
2274991511,3cyclictest231ktimersoftd/119:14:421
2274991510,1cyclictest0-21swapper/119:19:371
2273991515,0cyclictest0-21swapper/019:24:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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