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2026-04-25 - 22:19
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Sat Apr 25, 2026 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
518326998951,19cyclictest0-21swapper/210:00:162
51832499750,75cyclictest675967-21/usr/sbin/munin11:55:010
518326997314,58cyclictest0-21swapper/210:10:152
518324997032,19cyclictest0-21swapper/008:59:270
518326996527,38cyclictest411rcuc/208:35:162
51832499580,39cyclictest697258-21unixbench-2d12:30:230
51832499580,39cyclictest655446-21ld11:15:210
518324995739,0cyclictest0-21swapper/012:08:570
518324995739,0cyclictest0-21swapper/010:43:370
518324995739,0cyclictest0-21swapper/009:47:050
518324995739,0cyclictest0-21swapper/009:33:130
518324995719,19cyclictest644349-21meminfo10:55:170
518324995637,19cyclictest31750irq/70-ice-0000:f4:00.0:misc08:35:370
518324995619,18cyclictest0-21swapper/010:31:530
518324995619,18cyclictest0-21swapper/010:31:530
518324995537,18cyclictest251irq_work/012:35:130
518324995537,0cyclictest0-21swapper/007:59:210
518324995517,19cyclictest622026-21awk10:15:170
518324995517,19cyclictest31750irq/70-ice-0000:f4:00.0:misc11:10:170
518324995516,39cyclictest648487-21sed11:05:010
518326995319,34cyclictest0-21swapper/211:10:162
518331995214,19cyclictest0-21swapper/709:50:197
518324995233,19cyclictest0-21swapper/011:56:460
518324995233,19cyclictest0-21swapper/010:13:490
518324995233,19cyclictest0-21swapper/010:00:190
518324995233,19cyclictest0-21swapper/007:47:450
518324995131,19cyclictest0-21swapper/007:22:530
518327995012,19cyclictest0-21swapper/312:15:173
518331994911,19cyclictest0-21swapper/707:50:177
518329994911,19cyclictest0-21swapper/510:25:165
518329994910,39cyclictest0-21swapper/511:55:175
518327994930,19cyclictest0-21swapper/308:05:173
518324994930,19cyclictest0-21swapper/009:55:010
518331994810,38cyclictest0-21swapper/707:30:167
518330994810,19cyclictest0-21swapper/607:50:176
518329994829,19cyclictest0-21swapper/512:20:155
518324994829,19cyclictest0-21swapper/008:20:250
518324994829,19cyclictest0-21swapper/008:17:510
518324994728,19cyclictest0-21swapper/009:19:430
518327994628,0cyclictest0-21swapper/307:55:173
51832599468,19cyclictest0-21swapper/111:05:161
51832699457,19cyclictest0-21swapper/210:15:162
51832699456,39cyclictest0-21swapper/212:10:162
518324994526,19cyclictest522636-21ntpq07:15:210
51833199435,19cyclictest0-21swapper/710:05:157
51833199435,19cyclictest0-21swapper/710:05:157
51833099435,19cyclictest0-21swapper/608:55:186
51832699434,39cyclictest0-21swapper/211:55:172
518330994123,18cyclictest0-21swapper/609:10:166
51832599413,38cyclictest0-21swapper/109:25:161
51832499412,39cyclictest551342-21kworker/0:2+rcu_gp09:05:010
51833099391,19cyclictest0-21swapper/607:20:176
51832799391,19cyclictest0-21swapper/308:00:173
51832799390,20cyclictest0-21swapper/311:55:173
51832799390,20cyclictest0-21swapper/310:25:163
51832599390,0cyclictest0-21swapper/109:00:161
518324993939,0cyclictest0-21swapper/012:04:410
518324993920,0cyclictest0-21swapper/010:54:170
518324993920,0cyclictest0-21swapper/009:41:450
518324993916,19cyclictest494368-21kworker/0:2+ice07:13:510
51832499390,39cyclictest651181-21sed11:10:010
51832499390,39cyclictest0-21swapper/012:21:250
51832499390,39cyclictest0-21swapper/011:25:090
51832499390,39cyclictest0-21swapper/008:32:370
51832499390,39cyclictest0-21swapper/008:05:010
51832499390,39cyclictest0-21swapper/007:51:430
51832499390,38cyclictest662024-21kworker/0:1+ice12:18:330
51832499390,20cyclictest694681-21taskset12:26:050
51832499390,20cyclictest551342-21kworker/0:2+ice09:14:010
518331993838,0cyclictest0-21swapper/709:17:357
51832699380,38cyclictest0-21swapper/211:05:162
518325993819,19cyclictest0-21swapper/109:10:161
51832599380,19cyclictest0-21swapper/110:25:171
518324993820,0cyclictest0-21swapper/010:22:170
518324993820,0cyclictest0-21swapper/009:05:290
518324993819,19cyclictest877-21mta-sts-daemon10:35:050
518324993819,0cyclictest0-21swapper/011:40:090
518324993819,0cyclictest0-21swapper/007:39:050
51832499380,38cyclictest0-21swapper/012:10:130
51832499380,38cyclictest0-21swapper/011:30:250
51832499380,38cyclictest0-21swapper/011:20:030
51832499380,38cyclictest0-21swapper/010:46:290
51832499380,38cyclictest0-21swapper/009:36:170
51832499380,38cyclictest0-21swapper/009:27:170
51832499380,38cyclictest0-21swapper/009:22:010
51832499380,38cyclictest0-21swapper/008:48:490
51832499380,38cyclictest0-21swapper/008:43:530
51832499380,38cyclictest0-21swapper/008:07:330
51832499380,19cyclictest0-21swapper/007:40:090
51832999370,18cyclictest0-21swapper/508:00:175
518325993719,18cyclictest0-21swapper/112:25:161
518324993719,18cyclictest0-21swapper/011:38:010
518324993719,0cyclictest171ktimers/008:51:590
518324993719,0cyclictest0-21swapper/007:26:170
518324993718,19cyclictest611522-21ntpq09:55:210
518324993718,19cyclictest0-21swapper/010:09:290
518324993718,19cyclictest0-21swapper/010:09:290
51832499370,37cyclictest0-21swapper/010:25:290
51832499370,37cyclictest0-21swapper/008:25:570
51833099360,35cyclictest0-21swapper/608:25:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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