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2026-05-23 - 20:55
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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 Sat May 23, 2026 12:48:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14806993581,200cyclictest151rcu_preempt12:27:5113
14806993581,200cyclictest151rcu_preempt12:27:5013
3273912920,284ptp4l0-21swapper/107:07:061
3273912920,284ptp4l0-21swapper/107:07:061
14705992023,1cyclictest151rcu_preempt12:30:5026
14705992013,2cyclictest151rcu_preempt09:16:2026
148349915549,70cyclictest0-21swapper/2411:50:5217
14692991530,87cyclictest0-21swapper/210:20:2212
14692991440,84cyclictest0-21swapper/209:55:4712
148269913838,67cyclictest0-21swapper/2307:40:2416
148679913739,86cyclictest0-21swapper/2911:50:3622
14840991370,85cyclictest0-21swapper/2509:57:4618
148269913740,60cyclictest0-21swapper/2311:55:2016
148349913630,78cyclictest0-21swapper/2408:35:1617
148269913652,60cyclictest0-21swapper/2309:04:4816
148269913646,56cyclictest0-21swapper/2311:05:3816
148269913629,67cyclictest0-21swapper/2311:23:1616
148269913627,67cyclictest0-21swapper/2312:17:1416
148349913528,74cyclictest0-21swapper/2411:38:1617
148269913545,61cyclictest0-21swapper/2308:35:2616
148269913544,59cyclictest0-21swapper/2308:30:2016
148269913529,69cyclictest0-21swapper/2311:45:4216
148269913529,61cyclictest0-21swapper/2312:21:3016
148269913529,61cyclictest0-21swapper/2312:21:3016
148679913439,94cyclictest0-21swapper/2910:17:5622
14840991340,83cyclictest0-21swapper/2512:39:2818
14840991340,83cyclictest0-21swapper/2512:39:2718
148349913427,24cyclictest0-21swapper/2410:18:3917
148269913449,55cyclictest0-21swapper/2310:15:2316
148269913432,72cyclictest0-21swapper/2310:29:1616
148269913429,71cyclictest0-21swapper/2312:39:0916
148269913429,71cyclictest0-21swapper/2312:39:0916
14712991340,92cyclictest0-21swapper/507:45:5927
148679913332,93cyclictest0-21swapper/2912:39:4722
148679913332,93cyclictest0-21swapper/2912:39:4722
148409913341,65cyclictest0-21swapper/2510:34:5818
148269913348,56cyclictest0-21swapper/2310:40:1516
148269913329,70cyclictest0-21swapper/2309:05:2116
148269913328,72cyclictest0-21swapper/2312:27:2316
148269913328,72cyclictest0-21swapper/2312:27:2316
148269913328,66cyclictest0-21swapper/2310:10:0216
148349913226,67cyclictest0-21swapper/2410:32:3317
148349913225,80cyclictest0-21swapper/2412:24:2617
148349913225,80cyclictest0-21swapper/2412:24:2517
148269913255,62cyclictest0-21swapper/2309:13:2216
148269913231,72cyclictest0-21swapper/2311:11:2916
148269913230,71cyclictest0-21swapper/2310:39:5616
14741991320,84cyclictest0-21swapper/1009:45:132
148679913131,94cyclictest0-21swapper/2910:25:3822
148269913161,66cyclictest0-21swapper/2309:55:0516
148269913131,73cyclictest0-21swapper/2308:58:5716
148269913130,75cyclictest0-21swapper/2310:45:1916
148269913129,72cyclictest0-21swapper/2309:47:3516
148269913128,67cyclictest0-21swapper/2311:00:1716
148679913032,67cyclictest0-21swapper/2911:16:5622
148269913032,74cyclictest0-21swapper/2309:20:1916
148269913032,73cyclictest0-21swapper/2307:26:2316
148269913030,74cyclictest0-21swapper/2308:40:1516
148269913029,69cyclictest0-21swapper/2312:13:4516
148269913029,69cyclictest0-21swapper/2312:13:4516
148679912929,78cyclictest0-21swapper/2909:32:4322
148679912927,101cyclictest0-21swapper/2911:39:1122
148409912945,54cyclictest0-21swapper/2510:24:5918
148349912946,48cyclictest0-21swapper/2409:16:0817
148269912932,77cyclictest0-21swapper/2311:30:1216
148269912924,62cyclictest0-21swapper/2308:25:1816
148679912830,52cyclictest0-21swapper/2910:45:2422
14834991280,80cyclictest0-21swapper/2408:45:5617
148269912833,78cyclictest0-21swapper/2310:00:2416
148269912831,75cyclictest0-21swapper/2310:21:1616
148269912726,59cyclictest0-21swapper/2309:17:3916
148409912634,72cyclictest0-21swapper/2511:52:4218
148269912643,64cyclictest0-21swapper/2309:50:1516
146929912643,56cyclictest0-21swapper/211:29:5112
148679912525,68cyclictest0-21swapper/2911:24:5722
148679912524,100cyclictest0-21swapper/2909:40:3222
148409912546,56cyclictest0-21swapper/2510:05:4818
148409912428,63cyclictest0-21swapper/2512:34:5518
148409912426,65cyclictest0-21swapper/2509:29:2718
148269912423,61cyclictest0-21swapper/2310:59:1216
148409912333,61cyclictest0-21swapper/2509:54:3518
148409912327,64cyclictest0-21swapper/2512:08:1118
146929912340,56cyclictest0-21swapper/210:52:5812
146929912334,81cyclictest0-21swapper/211:45:2212
146929912333,89cyclictest0-21swapper/207:55:0012
146929912318,68cyclictest0-21swapper/211:57:0612
148409912226,65cyclictest0-21swapper/2508:10:5318
148409912224,65cyclictest0-21swapper/2509:20:5318
14741991220,72cyclictest0-21swapper/1010:25:192
146929912266,11cyclictest0-21swapper/212:12:3712
146929912266,11cyclictest0-21swapper/212:12:3712
330891121113,6phc2sys0-21swapper/207:05:2212
330891121113,6phc2sys0-21swapper/207:05:2212
14867991210,85cyclictest0-21swapper/2911:42:3622
148409912147,66cyclictest0-21swapper/2510:03:3918
148409912128,67cyclictest0-21swapper/2509:37:2818
148409912127,65cyclictest0-21swapper/2510:54:2518
148409912126,66cyclictest0-21swapper/2509:11:4818
148409912126,65cyclictest0-21swapper/2510:42:0018
148409912126,64cyclictest0-21swapper/2508:07:4218
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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