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2026-04-18 - 08:31
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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 Apr 18, 2026 00:49:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
929499302104,1cyclictest151rcu_preempt21:40:2414
929499302104,1cyclictest151rcu_preempt21:40:2414
3273912510,243ptp4l0-21swapper/119:06:141
330891194186,6phc2sys0-21swapper/219:09:3612
92829917254,85cyclictest0-21swapper/1900:05:1511
92499915736,53cyclictest0-21swapper/1421:10:026
92829915421,97cyclictest151rcu_preempt23:58:4711
93399915367,59cyclictest0-21swapper/2822:00:0621
93399915367,59cyclictest0-21swapper/2822:00:0621
92829915027,119cyclictest151rcu_preempt00:02:3211
92829914820,88cyclictest151rcu_preempt00:35:4011
9294991476,97cyclictest0-21swapper/2122:56:3514
92219914527,63cyclictest0-21swapper/723:00:2029
93399914244,56cyclictest0-21swapper/2823:13:0121
92219914250,58cyclictest0-21swapper/719:15:3529
9221991420,81cyclictest0-21swapper/723:19:3429
9221991410,83cyclictest0-21swapper/721:42:2829
9221991410,83cyclictest0-21swapper/721:42:2829
93399914049,57cyclictest0-21swapper/2800:35:0621
9339991400,86cyclictest0-21swapper/2823:50:1321
9229991400,86cyclictest0-21swapper/900:15:1731
92219914030,66cyclictest0-21swapper/723:30:1629
9221991400,83cyclictest0-21swapper/722:51:5629
9221991400,83cyclictest0-21swapper/722:51:5529
9221991400,82cyclictest0-21swapper/721:50:1929
9221991400,82cyclictest0-21swapper/721:50:1929
92299913919,32cyclictest0-21swapper/921:24:4231
92299913919,32cyclictest0-21swapper/921:24:4231
9221991390,80cyclictest0-21swapper/720:05:4429
9221991380,83cyclictest0-21swapper/722:47:3129
9221991380,83cyclictest0-21swapper/722:47:3129
9221991380,82cyclictest0-21swapper/719:35:4929
9221991380,81cyclictest0-21swapper/721:38:3429
9221991380,81cyclictest0-21swapper/721:38:3329
93399913745,69cyclictest0-21swapper/2821:32:1821
93399913745,69cyclictest0-21swapper/2821:32:1821
93399913729,69cyclictest0-21swapper/2800:08:2121
9221991370,80cyclictest0-21swapper/700:11:5829
93399913658,59cyclictest0-21swapper/2823:21:1721
92219913648,60cyclictest0-21swapper/721:25:5329
92219913648,60cyclictest0-21swapper/721:25:5329
92219913628,66cyclictest0-21swapper/723:08:3129
93399913556,59cyclictest0-21swapper/2800:00:5721
93399913549,61cyclictest0-21swapper/2820:03:0321
9249991350,80cyclictest0-21swapper/1422:50:186
9249991350,80cyclictest0-21swapper/1422:50:176
93399913453,61cyclictest0-21swapper/2823:27:1321
93399913447,55cyclictest0-21swapper/2822:49:1521
93399913447,55cyclictest0-21swapper/2822:49:1421
93399913429,73cyclictest0-21swapper/2800:10:1721
93399913429,66cyclictest0-21swapper/2823:57:0921
93399913426,72cyclictest0-21swapper/2822:36:2421
92219913429,64cyclictest0-21swapper/723:40:2529
92219913426,63cyclictest0-21swapper/720:20:0029
93399913336,66cyclictest0-21swapper/2821:10:2421
93399913336,66cyclictest0-21swapper/2821:10:2321
93399913327,72cyclictest0-21swapper/2820:10:0121
93399913327,64cyclictest0-21swapper/2822:06:3021
93399913327,64cyclictest0-21swapper/2822:06:3021
93399913325,65cyclictest0-21swapper/2820:15:2121
92299913343,59cyclictest0-21swapper/900:25:2031
92219913330,64cyclictest0-21swapper/723:25:5929
9221991331,78cyclictest0-21swapper/721:20:2429
9221991331,78cyclictest0-21swapper/721:20:2329
9221991330,78cyclictest0-21swapper/720:28:1129
93399913230,76cyclictest0-21swapper/2821:56:2021
93399913230,76cyclictest0-21swapper/2821:56:2021
93399913230,71cyclictest0-21swapper/2820:46:2121
93399913227,65cyclictest0-21swapper/2820:35:0521
92829913220,74cyclictest0-21swapper/1923:42:1411
92299913255,50cyclictest0-21swapper/919:45:0231
92219913227,62cyclictest0-21swapper/722:20:1429
92219913227,62cyclictest0-21swapper/722:20:1429
9221991320,79cyclictest0-21swapper/700:25:1829
93399913137,61cyclictest0-21swapper/2819:31:3021
93399913131,78cyclictest0-21swapper/2819:49:4121
93399913131,73cyclictest0-21swapper/2820:34:0421
93399913130,75cyclictest0-21swapper/2822:15:2021
93399913130,67cyclictest0-21swapper/2821:29:5221
93399913130,67cyclictest0-21swapper/2821:29:5221
93399913129,71cyclictest0-21swapper/2821:40:3321
93399913129,71cyclictest0-21swapper/2821:40:3321
93399913129,65cyclictest0-21swapper/2822:20:2321
93399913129,65cyclictest0-21swapper/2822:20:2321
93399913123,70cyclictest0-21swapper/2823:30:2521
92299913146,59cyclictest0-21swapper/922:48:3731
92299913146,59cyclictest0-21swapper/922:48:3731
92219913132,62cyclictest0-21swapper/700:33:1929
92219913130,66cyclictest0-21swapper/721:10:1529
92219913130,66cyclictest0-21swapper/721:10:1429
92219913129,65cyclictest0-21swapper/722:14:5529
92219913129,65cyclictest0-21swapper/722:14:5429
92219913129,65cyclictest0-21swapper/700:15:4229
9221991310,78cyclictest0-21swapper/721:49:1629
9221991310,78cyclictest0-21swapper/721:49:1629
9221991310,77cyclictest0-21swapper/720:40:2829
93399913026,73cyclictest0-21swapper/2821:18:2521
93399913026,73cyclictest0-21swapper/2821:18:2421
93399913026,64cyclictest0-21swapper/2822:30:3421
93399913026,64cyclictest0-21swapper/2822:30:3321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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