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2026-08-14 - 21:11
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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 Fri Aug 14, 2026 12:49:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
846599355158,3cyclictest125-21ksoftirqd/1811:49:0310
837799308111,1cyclictest151rcu_preempt10:50:170
837799265111,3cyclictest151rcu_preempt10:20:220
837799265111,3cyclictest151rcu_preempt10:20:220
846599244122,4cyclictest125-21ksoftirqd/1811:59:1210
330891226216,7phc2sys0-21swapper/207:05:2412
84659918222,99cyclictest0-21swapper/1812:35:0110
84899917017,138cyclictest0-21swapper/2410:45:2117
84899916917,91cyclictest0-21swapper/2410:35:1117
84899916917,91cyclictest0-21swapper/2410:35:1117
84899916717,95cyclictest0-21swapper/2409:10:1317
84699916715,121cyclictest0-21swapper/1910:12:5211
83779916082,6cyclictest13-21ksoftirqd/010:45:140
3273911590,150ptp4l0-21swapper/107:06:551
71202155148,6sleep90-21swapper/907:09:4031
84699915315,100cyclictest0-21swapper/1910:41:4311
84699915315,100cyclictest0-21swapper/1910:41:4311
84899915217,100cyclictest0-21swapper/2409:45:1317
84899915217,100cyclictest0-21swapper/2409:45:1317
83779915115,96cyclictest0-21swapper/011:09:320
84699914874,70cyclictest131-21ksoftirqd/1910:35:1711
84699914874,70cyclictest131-21ksoftirqd/1910:35:1711
84289914829,86cyclictest0-21swapper/1011:34:292
83779914815,91cyclictest0-21swapper/010:44:180
83779914815,91cyclictest0-21swapper/010:44:180
84899914717,85cyclictest0-21swapper/2408:40:1717
84429914630,27cyclictest0-21swapper/1309:50:195
84429914630,27cyclictest0-21swapper/1309:50:195
84899914115,92cyclictest0-21swapper/2407:45:1717
84429913952,84cyclictest0-21swapper/1310:15:135
84429913952,84cyclictest0-21swapper/1310:15:135
8428991390,85cyclictest0-21swapper/1010:23:392
8428991390,85cyclictest0-21swapper/1010:23:392
84429913853,59cyclictest0-21swapper/1310:24:025
84429913853,59cyclictest0-21swapper/1310:24:025
84899913717,79cyclictest0-21swapper/2409:25:2017
84429913752,52cyclictest0-21swapper/1309:32:115
8486991360,86cyclictest0-21swapper/2310:00:3816
8486991360,86cyclictest0-21swapper/2310:00:3816
84429913627,65cyclictest0-21swapper/1307:24:265
84429913451,58cyclictest0-21swapper/1311:22:465
84429913448,56cyclictest0-21swapper/1311:59:395
84329913427,66cyclictest0-21swapper/1110:33:343
84329913427,66cyclictest0-21swapper/1110:33:343
84429913354,61cyclictest0-21swapper/1311:40:575
84429913341,59cyclictest0-21swapper/1308:46:115
84429913330,71cyclictest0-21swapper/1308:05:345
84429913329,64cyclictest0-21swapper/1309:28:245
84429913327,69cyclictest0-21swapper/1312:00:335
84329913349,66cyclictest0-21swapper/1110:06:513
84329913349,66cyclictest0-21swapper/1110:06:513
84329913329,71cyclictest0-21swapper/1109:41:583
84329913329,71cyclictest0-21swapper/1109:41:583
84329913329,65cyclictest0-21swapper/1112:32:133
84329913328,67cyclictest0-21swapper/1107:15:183
84329913327,65cyclictest0-21swapper/1109:10:123
84899913215,94cyclictest0-21swapper/2408:00:1917
84899913213,90cyclictest20786-21latency_hist10:30:0217
84429913230,66cyclictest0-21swapper/1311:38:155
84429913229,70cyclictest0-21swapper/1310:35:155
84429913229,70cyclictest0-21swapper/1310:35:155
84429913228,69cyclictest0-21swapper/1310:34:435
84429913228,69cyclictest0-21swapper/1310:34:435
84429913228,69cyclictest0-21swapper/1309:00:245
84429913228,68cyclictest0-21swapper/1307:43:425
84429913228,66cyclictest0-21swapper/1312:18:065
84429913227,63cyclictest0-21swapper/1310:06:535
84429913227,63cyclictest0-21swapper/1310:06:525
84329913227,60cyclictest0-21swapper/1108:10:213
84659913122,96cyclictest0-21swapper/1811:08:5710
84429913139,58cyclictest0-21swapper/1308:30:095
84429913131,72cyclictest0-21swapper/1307:39:235
84429913129,66cyclictest0-21swapper/1312:11:095
84429913129,66cyclictest0-21swapper/1311:51:065
84429913128,73cyclictest0-21swapper/1309:55:275
84429913128,73cyclictest0-21swapper/1309:55:275
84429913128,64cyclictest0-21swapper/1310:49:065
84329913130,66cyclictest0-21swapper/1111:50:003
84329913128,67cyclictest0-21swapper/1109:23:333
84329913128,67cyclictest0-21swapper/1109:23:323
84329913127,66cyclictest0-21swapper/1108:22:113
84899913017,88cyclictest0-21swapper/2410:40:3317
84899913017,88cyclictest0-21swapper/2410:40:3317
84429913031,71cyclictest0-21swapper/1310:04:485
84429913031,71cyclictest0-21swapper/1310:04:485
84429913030,74cyclictest0-21swapper/1311:48:295
84429913029,68cyclictest0-21swapper/1307:25:175
84429913028,63cyclictest0-21swapper/1311:15:175
84429913027,62cyclictest0-21swapper/1310:11:125
84329913032,68cyclictest0-21swapper/1108:18:543
84329913031,74cyclictest0-21swapper/1110:39:273
84329913031,74cyclictest0-21swapper/1110:39:273
84329913029,67cyclictest0-21swapper/1109:17:073
84819912963,50cyclictest0-21swapper/2209:35:2415
84819912963,50cyclictest0-21swapper/2209:35:2415
84429912944,55cyclictest0-21swapper/1308:10:595
84429912929,64cyclictest0-21swapper/1310:53:235
84429912928,67cyclictest0-21swapper/1308:28:335
84429912927,67cyclictest0-21swapper/1311:08:055
84329912931,72cyclictest0-21swapper/1107:56:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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