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2026-07-18 - 15:06
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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 Sat Jul 18, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283322740,1sleep1221rcuc/119:13:391
2563127158,8sleep10-21swapper/119:05:541
2572126854,9sleep00-21swapper/019:06:510
301092630,0sleep00-21swapper/019:18:340
26049993910,22cyclictest0-21swapper/021:14:300
26050993510,24cyclictest0-21swapper/121:44:451
26050993510,16cyclictest0-21swapper/122:54:371
26050993410,5cyclictest0-21swapper/120:33:391
26050993110,0cyclictest0-21swapper/122:38:541
2605099303,9cyclictest0-21swapper/123:29:331
2604999300,2cyclictest590-21rs:main0
2605099293,3cyclictest24841-21/usr/sbin/munin20:28:361
26050992915,13cyclictest26047-21cyclictest23:13:421
26050992910,10cyclictest0-21swapper/123:22:061
2604999290,26cyclictest0-21swapper/022:19:250
26050992814,12cyclictest636-21nscd23:05:101
26050992810,17cyclictest0-21swapper/123:49:101
2605099280,7cyclictest0-21swapper/123:02:381
2605099274,5cyclictest30209-21perf23:38:231
2605099272,4cyclictest3412-21ssh22:23:371
2605099271,4cyclictest0-21swapper/120:13:271
26050992617,4cyclictest26047-21cyclictest21:13:361
26050992610,6cyclictest0-21swapper/100:12:141
26050992610,3cyclictest0-21swapper/121:27:121
2605099260,2cyclictest0-21swapper/122:47:271
2605099260,2cyclictest0-21swapper/100:20:301
26049992620,6cyclictest0-21swapper/021:18:320
26049992619,5cyclictest8012-21apache223:13:090
2604999261,24cyclictest24479-21snmpd22:53:130
2605099253,4cyclictest19278-21sh23:23:421
2605099252,5cyclictest0-21swapper/119:28:431
26050992510,9cyclictest0-21swapper/100:14:321
26050992510,6cyclictest0-21swapper/121:36:251
26049992525,0cyclictest0-21swapper/023:48:130
26049992518,3cyclictest81ktimersoftd/023:38:400
26049992518,3cyclictest81ktimersoftd/020:58:360
26049992510,1cyclictest0-21swapper/000:15:330
26049992510,0cyclictest0-21swapper/022:42:460
26050992420,4cyclictest8040-21apache220:53:351
26050992420,4cyclictest8040-21apache220:53:351
2605099241,10cyclictest0-21swapper/122:21:141
26050992410,9cyclictest0-21swapper/122:01:001
26050992410,2cyclictest0-21swapper/121:29:161
26049992420,3cyclictest29845-21munin-node23:37:550
2604999240,24cyclictest0-21swapper/022:44:450
1751522410,2sleep00-21swapper/000:03:180
26050992323,0cyclictest0-21swapper/100:33:401
26050992323,0cyclictest0-21swapper/100:24:011
26050992313,6cyclictest8040-21apache222:14:391
26050992310,2cyclictest0-21swapper/123:38:351
26050992310,10cyclictest100150irq/106-eth1-rx22:08:391
2604999235,17cyclictest0-21swapper/020:20:060
26049992319,3cyclictest1199-21runrttasks19:51:190
2605099224,10cyclictest0-21swapper/121:18:371
26050992211,5cyclictest0-21swapper/121:48:371
26050992210,7cyclictest0-21swapper/122:53:041
26050992210,6cyclictest0-21swapper/123:58:371
26050992210,6cyclictest0-21swapper/123:53:331
26050992210,6cyclictest0-21swapper/122:33:381
26050992210,6cyclictest0-21swapper/100:05:231
26049992220,2cyclictest8040-21apache221:51:030
26049992217,3cyclictest7-21ksoftirqd/020:53:360
26049992217,3cyclictest7-21ksoftirqd/020:53:360
26049992215,5cyclictest0-21swapper/022:10:100
26049992214,8cyclictest8040-21apache200:32:250
26049992212,9cyclictest0-21swapper/022:36:280
26049992210,4cyclictest0-21swapper/022:17:450
26049992210,4cyclictest0-21swapper/020:23:420
26049992210,0cyclictest0-21swapper/023:57:390
98122110,0sleep10-21swapper/121:38:581
2605099217,7cyclictest7119-21apache_volume19:43:351
2605099214,13cyclictest0-21swapper/120:48:361
26050992116,5cyclictest24479-21snmpd22:32:281
26050992110,5cyclictest0-21swapper/120:23:351
26050992110,4cyclictest0-21swapper/122:03:331
26050992110,2cyclictest0-21swapper/120:58:361
26049992116,4cyclictest8012-21apache223:28:390
26049992112,5cyclictest100250irq/107-eth1-rx22:08:210
26049992111,7cyclictest6281-21idleruntime-cro23:08:230
26049992110,7cyclictest0-21swapper/000:18:430
26049992110,6cyclictest0-21swapper/019:53:370
26049992110,5cyclictest0-21swapper/023:15:190
2604999210,5cyclictest0-21swapper/019:08:390
2048122110,0sleep00-21swapper/023:25:120
635622010,0sleep00-21swapper/022:27:220
582222010,0sleep10-21swapper/100:29:171
2605099209,4cyclictest29922-21taskset19:18:331
26050992010,9cyclictest0-21swapper/121:08:371
26049992017,2cyclictest8012-21apache221:43:560
2604999201,15cyclictest0-21swapper/020:28:380
26049992010,4cyclictest0-21swapper/023:00:230
26049992010,4cyclictest0-21swapper/000:33:240
26049992010,1cyclictest0-21swapper/023:48:370
2605099195,7cyclictest0-21swapper/123:08:391
2605099194,8cyclictest0-21swapper/121:54:081
26050991910,5cyclictest0-21swapper/120:18:341
26049991918,1cyclictest8012-21apache221:34:290
26049991916,2cyclictest0-21swapper/021:53:440
26049991910,6cyclictest0-21swapper/022:00:250
26049991910,6cyclictest0-21swapper/020:43:350
26049991910,4cyclictest100250irq/107-eth1-rx21:38:310
26049991910,4cyclictest0-21swapper/019:23:330
26049991910,2cyclictest0-21swapper/000:08:270
26049991910,1cyclictest18778-21kworker/0:121:30:490
1465321910,0sleep00-21swapper/020:03:140
2605099186,6cyclictest0-21swapper/119:33:351
2605099185,5cyclictest0-21swapper/119:53:381
2605099182,14cyclictest0-21swapper/120:43:411
26050991815,2cyclictest8040-21apache219:51:391
26050991811,5cyclictest100150irq/106-eth1-rx23:43:411
2604999187,3cyclictest0-21swapper/000:03:470
2604999183,8cyclictest0-21swapper/019:28:420
2604999182,2cyclictest0-21swapper/022:33:140
26049991818,0cyclictest0-21swapper/000:26:070
26049991814,2cyclictest0-21swapper/019:47:140
26049991810,3cyclictest0-21swapper/020:13:380
26049991810,3cyclictest0-21swapper/020:08:330
2604999180,7cyclictest0-21swapper/020:38:350
2605099176,8cyclictest0-21swapper/120:03:391
2605099174,7cyclictest0-21swapper/119:23:331
26050991716,1cyclictest26047-21cyclictest20:08:361
2605099170,11cyclictest0-21swapper/119:08:371
2604999176,10cyclictest0-21swapper/020:03:340
2604999173,4cyclictest7248-21diskmemload22:53:370
2604999172,9cyclictest0-21swapper/019:38:420
26049991710,3cyclictest0-21swapper/020:48:490
26049991710,2cyclictest0-21swapper/021:23:400
26049991710,0cyclictest0-21swapper/023:21:290
2604999170,15cyclictest0-21swapper/019:17:280
26050991610,3cyclictest0-21swapper/121:03:371
26050991610,3cyclictest0-21swapper/119:58:391
26050991610,1cyclictest0-21swapper/119:39:521
2604999162,7cyclictest0-21swapper/019:33:390
26049991610,6cyclictest0-21swapper/020:38:080
26050991512,2cyclictest705-21ntpd20:38:491
2604999152,7cyclictest5704-21diskstats21:03:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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