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2026-08-18 - 20:11
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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 Tue Aug 18, 2026 12:48:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87279922326,1cyclictest151rcu_preempt11:52:2015
874899173169,4cyclictest151rcu_preempt11:50:0218
87489916856,78cyclictest0-21swapper/2511:14:2518
87489916456,95cyclictest0-21swapper/2509:21:3018
3273911610,153ptp4l0-21swapper/107:08:301
3273911610,153ptp4l0-21swapper/107:08:301
70892160153,6sleep190-21swapper/1907:06:3911
70892160153,6sleep190-21swapper/1907:06:3911
87489915843,113cyclictest0-21swapper/2511:15:2918
87489914936,68cyclictest0-21swapper/2511:35:4918
8734991485,97cyclictest0-21swapper/2308:00:2416
86009914746,61cyclictest0-21swapper/310:24:2223
8734991460,86cyclictest0-21swapper/2311:05:1816
86229914632,94cyclictest0-21swapper/612:30:0128
86229914632,94cyclictest0-21swapper/612:30:0128
87489914531,92cyclictest0-21swapper/2511:57:4318
86869914593,32cyclictest0-21swapper/1612:36:278
86869914593,32cyclictest0-21swapper/1612:36:278
8734991440,83cyclictest0-21swapper/2311:45:2416
86009914327,77cyclictest0-21swapper/312:05:2223
8734991420,84cyclictest0-21swapper/2307:35:1716
8679991421,94cyclictest106-21ksoftirqd/1512:26:257
8679991421,94cyclictest106-21ksoftirqd/1512:26:257
8622991420,84cyclictest0-21swapper/611:05:0228
8774991410,83cyclictest0-21swapper/2909:30:1722
8679991410,87cyclictest0-21swapper/1508:06:097
8734991405,106cyclictest0-21swapper/2312:06:0816
85849914019,45cyclictest0-21swapper/010:00:510
8748991390,82cyclictest0-21swapper/2511:04:1718
87349913949,57cyclictest0-21swapper/2309:54:4516
8584991390,85cyclictest0-21swapper/012:10:240
87749913849,58cyclictest0-21swapper/2910:31:1222
87749913826,67cyclictest0-21swapper/2911:33:4422
87349913850,55cyclictest0-21swapper/2311:28:5016
8679991380,86cyclictest0-21swapper/1511:45:167
87489913716,94cyclictest0-21swapper/2510:35:5718
87349913743,58cyclictest0-21swapper/2308:40:5416
87349913730,72cyclictest0-21swapper/2311:14:1716
87349913729,73cyclictest0-21swapper/2312:29:4616
87349913729,73cyclictest0-21swapper/2312:29:4616
87749913650,56cyclictest0-21swapper/2907:30:3522
87749913626,65cyclictest0-21swapper/2911:48:0922
87349913648,59cyclictest0-21swapper/2309:38:1216
87749913542,70cyclictest0-21swapper/2908:38:5922
87749913529,69cyclictest0-21swapper/2910:24:0122
87489913526,74cyclictest0-21swapper/2509:50:1718
87349913548,58cyclictest0-21swapper/2309:57:2516
87349913536,71cyclictest0-21swapper/2310:53:3316
87349913532,66cyclictest0-21swapper/2310:07:5116
87349913528,71cyclictest0-21swapper/2308:48:5516
87349913527,71cyclictest0-21swapper/2310:59:2616
8734991350,82cyclictest0-21swapper/2312:36:4216
8734991350,82cyclictest0-21swapper/2312:36:4216
87749913430,71cyclictest0-21swapper/2907:54:3822
87749913429,69cyclictest0-21swapper/2909:46:5122
87749913426,70cyclictest0-21swapper/2911:15:3422
87749913422,73cyclictest0-21swapper/2908:18:4022
87349913444,62cyclictest0-21swapper/2308:38:4516
87349913427,69cyclictest0-21swapper/2311:51:4816
85849913417,74cyclictest0-21swapper/009:33:200
87749913332,73cyclictest0-21swapper/2912:15:1522
87749913332,73cyclictest0-21swapper/2912:15:1422
87749913329,67cyclictest0-21swapper/2910:44:5322
87749913327,71cyclictest0-21swapper/2909:54:5222
87349913331,68cyclictest0-21swapper/2310:27:1416
86009913341,90cyclictest0-21swapper/308:35:2023
87749913227,67cyclictest0-21swapper/2911:55:0722
87749913227,62cyclictest0-21swapper/2910:52:0322
87749913226,65cyclictest0-21swapper/2911:11:1822
87749913225,63cyclictest0-21swapper/2910:05:3222
87749913219,78cyclictest0-21swapper/2907:15:5622
87749913219,78cyclictest0-21swapper/2907:15:5622
8774991320,81cyclictest0-21swapper/2912:03:0822
87349913229,78cyclictest0-21swapper/2308:30:2016
87349913228,69cyclictest0-21swapper/2310:39:3916
87749913154,68cyclictest0-21swapper/2910:59:3222
87749913144,68cyclictest0-21swapper/2911:52:4222
87749913131,75cyclictest0-21swapper/2908:22:1222
87749913129,71cyclictest0-21swapper/2912:28:0222
87749913129,71cyclictest0-21swapper/2912:28:0222
87349913128,72cyclictest0-21swapper/2311:20:1716
87349913127,66cyclictest0-21swapper/2308:55:2616
86229913123,82cyclictest0-21swapper/609:35:5628
85849913122,70cyclictest0-21swapper/009:27:280
87749913029,76cyclictest0-21swapper/2911:40:2822
87749913028,66cyclictest0-21swapper/2907:39:2822
87749913024,60cyclictest0-21swapper/2911:07:5222
87349913028,67cyclictest0-21swapper/2311:40:3516
87349913028,66cyclictest0-21swapper/2309:23:3916
87349913027,67cyclictest0-21swapper/2312:16:2416
87349913027,67cyclictest0-21swapper/2312:16:2416
85849913040,60cyclictest0-21swapper/012:03:130
87749912932,79cyclictest0-21swapper/2910:18:0922
87749912932,79cyclictest0-21swapper/2909:19:0222
87749912931,71cyclictest0-21swapper/2907:24:1022
87749912931,71cyclictest0-21swapper/2907:24:0922
87749912930,64cyclictest0-21swapper/2911:01:4022
8748991291,85cyclictest0-21swapper/2511:50:0018
87349912936,66cyclictest0-21swapper/2307:50:1516
87349912929,59cyclictest0-21swapper/2310:12:1716
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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