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2026-07-04 - 05:32
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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 Jul 04, 2026 00:48:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913050,298ptp4l0-21swapper/119:06:231
3273913050,298ptp4l0-21swapper/119:06:221
152752260253,6sleep180-21swapper/1819:07:5610
152752260253,6sleep180-21swapper/1819:07:5510
168359921113,2cyclictest151rcu_preempt22:22:1110
167219916833,134cyclictest0-21swapper/223:15:2212
16781991627,48cyclictest0-21swapper/1100:05:123
167679916129,131cyclictest0-21swapper/923:50:1231
1687499159157,1cyclictest151rcu_preempt23:49:5516
167679915929,80cyclictest0-21swapper/919:20:2031
167679915829,77cyclictest0-21swapper/922:14:3331
167679915725,86cyclictest0-21swapper/923:43:1631
167219915625,89cyclictest0-21swapper/219:52:2912
168749915331,121cyclictest0-21swapper/2300:20:2316
167219915327,80cyclictest0-21swapper/221:27:5712
168749914924,124cyclictest0-21swapper/2321:49:3816
16910991486,125cyclictest151rcu_preempt00:13:2920
167679914829,62cyclictest0-21swapper/922:50:5331
167119914828,70cyclictest0-21swapper/022:35:500
168749914725,121cyclictest0-21swapper/2300:33:4416
16767991460,89cyclictest0-21swapper/922:17:4431
168829914531,81cyclictest0-21swapper/2419:25:1117
16882991450,85cyclictest0-21swapper/2423:40:0317
168749914331,111cyclictest0-21swapper/2322:20:2316
16868991430,84cyclictest0-21swapper/2222:16:2115
167339914322,88cyclictest29848-21sh22:50:1526
16733991430,85cyclictest0-21swapper/422:35:0426
16727991430,85cyclictest0-21swapper/320:20:2023
16882991420,84cyclictest0-21swapper/2400:38:0417
168689914225,69cyclictest0-21swapper/2222:06:0115
16882991410,96cyclictest161-21ksoftirqd/2422:55:1217
167279914052,56cyclictest0-21swapper/322:31:0023
16882991390,85cyclictest0-21swapper/2422:04:2517
168689913954,55cyclictest0-21swapper/2223:46:4615
168689913927,67cyclictest0-21swapper/2223:05:3115
167339913929,70cyclictest0-21swapper/400:35:1726
330891138130,6phc2sys0-21swapper/219:05:0312
330891138130,6phc2sys0-21swapper/219:05:0212
16919991380,87cyclictest0-21swapper/2800:35:4621
168689913853,63cyclictest0-21swapper/2220:35:2115
168689913844,62cyclictest0-21swapper/2222:38:4215
168689913838,60cyclictest0-21swapper/2223:25:5015
168689913827,64cyclictest0-21swapper/2222:55:5015
16868991380,83cyclictest0-21swapper/2200:29:5815
167339913848,53cyclictest0-21swapper/421:58:4626
167339913830,67cyclictest0-21swapper/421:05:2826
167339913829,67cyclictest0-21swapper/422:55:2526
167339913827,69cyclictest0-21swapper/400:20:2426
168689913750,55cyclictest0-21swapper/2200:08:5115
168689913745,60cyclictest0-21swapper/2221:38:2415
168689913728,69cyclictest0-21swapper/2220:55:0015
168689913728,68cyclictest0-21swapper/2220:23:3015
168689913727,67cyclictest0-21swapper/2222:23:1715
167339913735,63cyclictest0-21swapper/421:15:1726
167339913731,68cyclictest0-21swapper/421:42:5726
167339913731,66cyclictest0-21swapper/422:40:2726
167339913731,66cyclictest0-21swapper/422:40:2626
167279913747,61cyclictest0-21swapper/321:13:3023
167279913726,64cyclictest0-21swapper/300:39:4823
168689913651,60cyclictest0-21swapper/2222:10:2315
168689913630,69cyclictest0-21swapper/2222:42:2715
168689913630,69cyclictest0-21swapper/2222:42:2615
168689913628,68cyclictest0-21swapper/2220:43:2115
167339913627,65cyclictest0-21swapper/423:09:0126
167219913648,60cyclictest0-21swapper/223:58:0612
167219913627,66cyclictest0-21swapper/222:55:3412
168829913546,58cyclictest0-21swapper/2400:19:4417
168829913525,64cyclictest0-21swapper/2422:06:0617
168689913553,59cyclictest0-21swapper/2220:00:0415
168689913528,74cyclictest0-21swapper/2222:01:4115
167339913536,62cyclictest0-21swapper/423:50:0226
167339913530,66cyclictest0-21swapper/422:15:2126
167339913526,66cyclictest0-21swapper/422:26:3326
167219913563,51cyclictest28-21ksoftirqd/220:20:1112
167219913526,66cyclictest0-21swapper/223:21:1312
169199913467,38cyclictest0-21swapper/2821:08:5521
16882991340,90cyclictest161-21ksoftirqd/2422:11:5417
168689913436,66cyclictest0-21swapper/2222:47:1515
168689913436,66cyclictest0-21swapper/2222:47:1515
168689913429,73cyclictest0-21swapper/2223:13:3215
168689913429,69cyclictest0-21swapper/2222:34:3115
168689913428,69cyclictest0-21swapper/2221:45:4715
168689913428,66cyclictest0-21swapper/2222:51:0615
16805991340,81cyclictest0-21swapper/1421:54:206
167339913456,69cyclictest0-21swapper/423:55:1626
16733991340,81cyclictest0-21swapper/423:45:3926
167279913451,52cyclictest0-21swapper/322:20:1823
167279913441,61cyclictest0-21swapper/322:43:5023
167279913441,61cyclictest0-21swapper/322:43:4923
167279913427,64cyclictest0-21swapper/320:00:1723
167219913443,61cyclictest0-21swapper/200:21:3712
167219913425,66cyclictest0-21swapper/223:05:2612
169199913363,69cyclictest0-21swapper/2823:35:2521
168749913319,82cyclictest0-21swapper/2319:20:0116
168689913348,58cyclictest0-21swapper/2200:33:4315
168689913346,59cyclictest0-21swapper/2220:55:2315
168689913333,76cyclictest0-21swapper/2221:58:0515
168689913330,76cyclictest0-21swapper/2221:42:0815
168689913328,70cyclictest0-21swapper/2219:53:4115
168689913327,60cyclictest0-21swapper/2200:21:2615
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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