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2026-05-13 - 09:15
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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 rackcslot8.osadl.org (updated Wed May 13, 2026 00:49:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
619199334136,1cyclictest151rcu_preempt23:45:1817
3273913160,308ptp4l0-21swapper/119:05:371
60259916023,130cyclictest0-21swapper/100:16:391
62119915831,126cyclictest0-21swapper/2721:10:0120
6045991578,129cyclictest0-21swapper/422:30:1026
60259915723,98cyclictest0-21swapper/122:55:251
60259915423,78cyclictest0-21swapper/121:25:051
47752154147,6sleep310-21swapper/3119:08:3225
62119915328,124cyclictest0-21swapper/2700:20:1820
60259915323,115cyclictest0-21swapper/122:53:161
61189915030,87cyclictest0-21swapper/1420:40:256
60259915017,99cyclictest0-21swapper/120:15:371
60259915017,99cyclictest0-21swapper/120:15:371
60259914721,91cyclictest0-21swapper/123:24:321
61189914049,61cyclictest0-21swapper/1400:33:266
61189914048,64cyclictest0-21swapper/1420:10:246
61189914048,64cyclictest0-21swapper/1420:10:236
60259914023,72cyclictest0-21swapper/121:41:081
61189913948,57cyclictest0-21swapper/1422:03:166
604599139136,2cyclictest40-21ksoftirqd/421:53:1626
61989913851,56cyclictest0-21swapper/2500:32:0118
61989913851,55cyclictest0-21swapper/2522:05:3418
61189913830,70cyclictest0-21swapper/1423:45:206
60529913846,37cyclictest25358-21taskset00:03:3727
61989913751,59cyclictest0-21swapper/2523:41:4718
61989913748,57cyclictest0-21swapper/2523:34:1918
61989913741,62cyclictest0-21swapper/2519:30:2318
61989913741,62cyclictest0-21swapper/2519:30:2318
61189913754,66cyclictest0-21swapper/1422:05:566
61189913744,59cyclictest0-21swapper/1419:18:086
61189913744,59cyclictest0-21swapper/1419:18:076
61989913665,70cyclictest0-21swapper/2522:10:5618
61989913646,61cyclictest0-21swapper/2523:48:4418
61989913646,56cyclictest0-21swapper/2521:25:2918
61989913626,64cyclictest0-21swapper/2522:36:3418
61989913626,23cyclictest0-21swapper/2521:12:0718
61189913662,49cyclictest100-21ksoftirqd/1422:51:536
61189913629,72cyclictest0-21swapper/1400:18:296
61189913625,61cyclictest0-21swapper/1419:40:026
61189913625,61cyclictest0-21swapper/1419:40:026
6045991369,117cyclictest0-21swapper/422:04:4426
61989913551,59cyclictest0-21swapper/2522:43:0018
61989913541,61cyclictest0-21swapper/2500:02:2118
61989913529,69cyclictest0-21swapper/2521:23:5318
61989913528,72cyclictest0-21swapper/2523:39:0618
61989913528,71cyclictest0-21swapper/2521:17:2818
61989913528,70cyclictest0-21swapper/2500:10:0618
61989913527,66cyclictest0-21swapper/2523:15:2418
61839913549,49cyclictest0-21swapper/2322:46:4216
61189913551,60cyclictest0-21swapper/1423:54:576
61189913528,72cyclictest0-21swapper/1423:24:296
61189913528,70cyclictest0-21swapper/1423:16:596
61189913527,67cyclictest0-21swapper/1422:23:336
61189913527,67cyclictest0-21swapper/1400:20:056
61189913527,63cyclictest0-21swapper/1420:50:046
61189913526,65cyclictest0-21swapper/1419:25:026
61189913526,65cyclictest0-21swapper/1419:25:016
61989913443,57cyclictest0-21swapper/2521:35:3818
61989913439,60cyclictest0-21swapper/2523:28:4218
61989913430,70cyclictest0-21swapper/2522:24:1718
61989913429,69cyclictest0-21swapper/2520:56:0618
61989913428,71cyclictest0-21swapper/2522:32:3418
61989913427,69cyclictest0-21swapper/2522:57:5718
61989913427,66cyclictest0-21swapper/2523:56:1218
61189913448,60cyclictest0-21swapper/1421:25:206
61189913445,63cyclictest0-21swapper/1420:22:166
61189913445,63cyclictest0-21swapper/1420:22:156
61189913438,70cyclictest0-21swapper/1423:06:196
61189913430,71cyclictest0-21swapper/1423:36:476
61189913429,70cyclictest0-21swapper/1422:58:196
61189913427,63cyclictest0-21swapper/1422:16:376
61189913426,64cyclictest0-21swapper/1421:21:266
6045991349,123cyclictest0-21swapper/423:18:4926
6045991348,122cyclictest0-21swapper/423:47:3926
62119913320,82cyclictest0-21swapper/2722:35:0120
61989913353,58cyclictest0-21swapper/2520:15:1618
61989913353,58cyclictest0-21swapper/2520:15:1618
61989913344,58cyclictest0-21swapper/2500:29:4518
61989913329,66cyclictest0-21swapper/2521:47:4818
61989913328,68cyclictest0-21swapper/2523:05:1918
61989913328,68cyclictest0-21swapper/2522:18:2418
61989913328,65cyclictest0-21swapper/2500:07:5818
61989913327,70cyclictest0-21swapper/2522:53:2418
61549913326,96cyclictest0-21swapper/1921:28:3311
61189913329,68cyclictest0-21swapper/1420:10:006
61189913329,68cyclictest0-21swapper/1420:09:596
61189913327,72cyclictest0-21swapper/1421:11:566
61189913326,61cyclictest0-21swapper/1400:10:276
6045991339,78cyclictest0-21swapper/422:45:5426
6045991338,97cyclictest0-21swapper/419:44:5926
6045991338,97cyclictest0-21swapper/419:44:5926
6045991338,93cyclictest0-21swapper/420:40:1926
6045991338,75cyclictest0-21swapper/422:40:0126
61989913246,61cyclictest0-21swapper/2500:38:5818
61989913232,66cyclictest0-21swapper/2522:47:1618
61989913230,71cyclictest0-21swapper/2520:47:3218
61989913229,74cyclictest0-21swapper/2500:22:2518
61989913229,69cyclictest0-21swapper/2521:43:3918
61989913228,69cyclictest0-21swapper/2521:31:5518
61839913227,70cyclictest0-21swapper/2323:10:1016
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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