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2026-09-06 - 07:37
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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 Sun Sep 06, 2026 00:49:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913110,304ptp4l0-21swapper/119:06:371
270639920711,2cyclictest151rcu_preempt22:35:0616
269919918111,150cyclictest0-21swapper/1321:50:195
269819918153,84cyclictest0-21swapper/1122:34:523
270819917832,129cyclictest0-21swapper/2522:41:0018
269149917133,102cyclictest0-21swapper/123:58:051
269919916811,156cyclictest0-21swapper/1319:35:225
269919916811,156cyclictest0-21swapper/1319:35:225
269149916833,102cyclictest0-21swapper/100:25:211
269149916833,102cyclictest0-21swapper/100:25:211
269919915811,146cyclictest0-21swapper/1323:54:195
239512157149,6sleep210-21swapper/2119:05:1914
270819915628,87cyclictest0-21swapper/2520:40:0418
270819915626,88cyclictest0-21swapper/2521:38:2818
270819915622,98cyclictest0-21swapper/2523:40:1418
270819915622,98cyclictest0-21swapper/2523:40:1418
269409915514,71cyclictest0-21swapper/521:00:1227
270819915332,74cyclictest0-21swapper/2522:11:3618
270819915127,79cyclictest0-21swapper/2520:50:2218
270819914833,88cyclictest32278-21taskset20:00:2418
270819914832,70cyclictest0-21swapper/2521:45:1418
271039914719,78cyclictest0-21swapper/2820:37:5521
26954991470,89cyclictest0-21swapper/721:23:4529
269149914726,80cyclictest0-21swapper/123:13:441
269919914411,104cyclictest0-21swapper/1322:26:225
270819914323,84cyclictest0-21swapper/2521:54:3018
269919914221,52cyclictest0-21swapper/1323:35:195
269149914222,25cyclictest0-21swapper/121:51:581
269819913825,68cyclictest0-21swapper/1123:23:373
27081991370,81cyclictest0-21swapper/2522:21:4518
271039913666,69cyclictest0-21swapper/2819:58:5221
270349913623,75cyclictest0-21swapper/1923:27:5511
27011991360,91cyclictest0-21swapper/1623:07:208
271179913523,111cyclictest0-21swapper/3000:35:2824
271179913523,111cyclictest0-21swapper/3000:35:2724
27081991350,83cyclictest0-21swapper/2522:52:1318
27081991350,82cyclictest0-21swapper/2521:25:2518
269819913531,64cyclictest0-21swapper/1100:15:223
269819913531,64cyclictest0-21swapper/1100:15:213
269819913530,65cyclictest0-21swapper/1123:00:143
269819913530,63cyclictest0-21swapper/1100:05:123
269819913530,63cyclictest0-21swapper/1100:05:123
271179913424,81cyclictest0-21swapper/3021:38:0124
271179913423,110cyclictest0-21swapper/3023:15:1724
271179913423,110cyclictest0-21swapper/3023:15:1724
271039913451,54cyclictest0-21swapper/2800:20:2121
271039913451,54cyclictest0-21swapper/2800:20:2121
271039913428,71cyclictest0-21swapper/2822:53:0821
270349913422,71cyclictest0-21swapper/1922:54:4711
269819913430,66cyclictest0-21swapper/1123:19:483
269819913430,66cyclictest0-21swapper/1123:19:473
269819913429,62cyclictest0-21swapper/1122:47:433
269819913429,61cyclictest0-21swapper/1122:09:143
270429913332,2cyclictest2103-21cut22:25:1713
269919913311,111cyclictest0-21swapper/1323:40:405
269919913311,111cyclictest0-21swapper/1323:40:395
269819913331,65cyclictest0-21swapper/1123:05:213
269819913330,61cyclictest0-21swapper/1119:15:023
269819913330,61cyclictest0-21swapper/1119:15:023
269819913327,65cyclictest0-21swapper/1123:00:003
26981991330,78cyclictest0-21swapper/1121:45:433
269149913345,56cyclictest0-21swapper/121:48:341
271179913223,67cyclictest0-21swapper/3022:48:0224
271179913222,78cyclictest0-21swapper/3022:00:4624
271039913243,60cyclictest0-21swapper/2823:17:1021
271039913243,60cyclictest0-21swapper/2823:17:1021
271039913229,69cyclictest0-21swapper/2820:09:3521
271039913227,65cyclictest0-21swapper/2823:45:0221
271039913227,65cyclictest0-21swapper/2823:45:0221
271039913226,68cyclictest0-21swapper/2823:55:0921
26991991320,82cyclictest0-21swapper/1320:40:245
269819913228,61cyclictest0-21swapper/1120:05:153
271039913131,63cyclictest0-21swapper/2800:37:5021
271039913131,63cyclictest0-21swapper/2800:37:5021
271039913129,46cyclictest0-21swapper/2822:55:1621
271039913126,63cyclictest0-21swapper/2820:17:3421
270819913131,67cyclictest0-21swapper/2520:10:1718
269919913148,52cyclictest0-21swapper/1322:45:235
269819913130,65cyclictest0-21swapper/1121:20:363
269819913130,64cyclictest0-21swapper/1120:58:413
269549913146,70cyclictest0-21swapper/723:10:3829
269549913134,64cyclictest0-21swapper/723:35:1429
269549913132,69cyclictest0-21swapper/722:25:1229
271039913052,62cyclictest0-21swapper/2819:45:1921
271039913052,62cyclictest0-21swapper/2819:45:1821
271039913030,74cyclictest0-21swapper/2819:10:2021
271039913030,74cyclictest0-21swapper/2819:10:2021
271039913028,72cyclictest0-21swapper/2821:28:5721
271039913028,67cyclictest0-21swapper/2819:35:2521
271039913028,67cyclictest0-21swapper/2819:35:2521
271039913028,67cyclictest0-21swapper/2800:10:2021
271039913028,67cyclictest0-21swapper/2800:10:2021
271039913026,64cyclictest0-21swapper/2821:49:3021
271039913022,71cyclictest0-21swapper/2821:57:4821
270819913049,53cyclictest0-21swapper/2520:08:0918
269919913049,60cyclictest0-21swapper/1323:12:405
269919913026,64cyclictest0-21swapper/1322:06:415
26981991303,74cyclictest0-21swapper/1120:01:303
271039912946,64cyclictest0-21swapper/2800:25:1921
271039912946,64cyclictest0-21swapper/2800:25:1821
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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