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2026-04-19 - 06:19
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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 Apr 19, 2026 00:49:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37062316309,6sleep160-21swapper/1619:08:198
3273912990,288ptp4l0-21swapper/119:05:121
50799926174,2cyclictest151rcu_preempt23:33:5927
50799926174,2cyclictest151rcu_preempt23:33:5927
50899922516,150cyclictest0-21swapper/722:05:1829
50899915815,142cyclictest0-21swapper/722:12:5629
51869915046,71cyclictest0-21swapper/2422:20:2117
50669914722,53cyclictest0-21swapper/222:26:0312
51869914646,98cyclictest0-21swapper/2423:30:2217
51869914646,98cyclictest0-21swapper/2423:30:2217
5066991450,85cyclictest0-21swapper/221:20:1912
51869914446,83cyclictest0-21swapper/2400:00:2017
51869914446,83cyclictest0-21swapper/2400:00:2017
5111991430,88cyclictest0-21swapper/1223:36:494
5111991430,88cyclictest0-21swapper/1223:36:494
5221991410,88cyclictest0-21swapper/2922:53:4622
51869914146,43cyclictest0-21swapper/2423:48:2917
51869914146,43cyclictest0-21swapper/2423:48:2917
50749914152,55cyclictest0-21swapper/419:55:1726
52219913946,60cyclictest0-21swapper/2921:14:2122
50899913938,100cyclictest151rcu_preempt23:16:2329
50899913938,100cyclictest151rcu_preempt23:16:2329
5089991390,84cyclictest0-21swapper/723:23:2029
5089991390,84cyclictest0-21swapper/723:23:2029
5074991390,84cyclictest0-21swapper/421:30:2126
52219913851,55cyclictest0-21swapper/2922:39:1922
52219913823,28cyclictest0-21swapper/2923:35:1722
52219913823,28cyclictest0-21swapper/2923:35:1722
5066991380,81cyclictest0-21swapper/200:10:1712
5066991380,81cyclictest0-21swapper/200:10:1712
50669913728,71cyclictest0-21swapper/223:01:5212
51869913643,55cyclictest0-21swapper/2400:36:1017
51119913649,57cyclictest0-21swapper/1200:36:024
52219913556,64cyclictest0-21swapper/2923:56:1822
52219913556,64cyclictest0-21swapper/2923:56:1822
52219913551,66cyclictest0-21swapper/2923:46:4122
52219913551,66cyclictest0-21swapper/2923:46:4122
52219913550,60cyclictest0-21swapper/2920:50:1822
52219913527,69cyclictest0-21swapper/2919:37:2222
51869913534,62cyclictest0-21swapper/2421:08:1517
51119913531,28cyclictest0-21swapper/1222:30:184
50899913515,75cyclictest0-21swapper/722:35:1429
50669913527,66cyclictest0-21swapper/223:24:1912
50669913527,66cyclictest0-21swapper/223:24:1912
50669913527,65cyclictest0-21swapper/219:39:3412
50669913526,68cyclictest0-21swapper/219:15:1712
52219913452,62cyclictest0-21swapper/2920:59:5622
52219913429,72cyclictest0-21swapper/2900:25:1022
52219913429,69cyclictest0-21swapper/2900:16:3722
52219913429,69cyclictest0-21swapper/2900:16:3722
51869913433,63cyclictest0-21swapper/2400:15:1517
51869913433,63cyclictest0-21swapper/2400:15:1517
508999134123,11cyclictest58-21ksoftirqd/722:57:4129
50749913429,64cyclictest0-21swapper/422:03:4126
50749913428,64cyclictest0-21swapper/423:15:0226
50749913428,64cyclictest0-21swapper/423:15:0226
50749913422,70cyclictest0-21swapper/420:25:1826
5074991340,79cyclictest0-21swapper/423:53:1626
50669913454,63cyclictest0-21swapper/222:46:2112
50669913454,63cyclictest0-21swapper/222:46:2112
50669913429,68cyclictest0-21swapper/222:18:3412
5066991340,79cyclictest0-21swapper/223:41:0712
5066991340,79cyclictest0-21swapper/223:41:0712
52219913330,72cyclictest0-21swapper/2920:40:1222
52219913330,68cyclictest0-21swapper/2921:17:0222
52219913329,69cyclictest0-21swapper/2919:20:3222
52219913329,68cyclictest0-21swapper/2900:06:5922
52219913329,68cyclictest0-21swapper/2900:06:5922
52219913328,66cyclictest0-21swapper/2922:45:1322
52219913328,66cyclictest0-21swapper/2922:45:1322
52219913328,66cyclictest0-21swapper/2921:54:2622
50749913325,72cyclictest0-21swapper/422:08:1526
50669913328,68cyclictest0-21swapper/223:39:4912
50669913328,68cyclictest0-21swapper/223:39:4912
50669913317,70cyclictest0-21swapper/221:18:2512
5066991330,78cyclictest0-21swapper/223:45:1012
5066991330,78cyclictest0-21swapper/223:45:0912
52219913232,81cyclictest0-21swapper/2922:14:4522
52219913229,73cyclictest0-21swapper/2922:06:4422
52219913228,70cyclictest0-21swapper/2922:42:0122
52219913228,67cyclictest0-21swapper/2922:30:1522
52219913226,63cyclictest0-21swapper/2919:42:5922
5221991321,82cyclictest0-21swapper/2922:57:3022
5221991320,77cyclictest0-21swapper/2900:30:3022
51119913219,63cyclictest0-21swapper/1222:49:324
51119913219,63cyclictest0-21swapper/1222:49:324
50749913230,62cyclictest0-21swapper/422:34:4326
5074991320,82cyclictest0-21swapper/400:37:2226
50669913229,75cyclictest0-21swapper/220:22:3612
50669913228,72cyclictest0-21swapper/200:00:0812
50669913228,72cyclictest0-21swapper/200:00:0812
50669913224,70cyclictest0-21swapper/219:51:1912
50669913220,69cyclictest0-21swapper/200:39:4112
52219913158,58cyclictest0-21swapper/2900:23:0122
52219913132,74cyclictest0-21swapper/2921:29:1922
52219913129,75cyclictest0-21swapper/2922:17:5722
52219913129,74cyclictest0-21swapper/2923:50:5722
52219913129,67cyclictest0-21swapper/2923:17:4922
52219913129,67cyclictest0-21swapper/2923:17:4922
52219913128,72cyclictest0-21swapper/2921:45:5322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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