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2026-06-17 - 04:43
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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 Wed Jun 17, 2026 00:49:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913060,297ptp4l0-21swapper/119:08:221
321599927478,56cyclictest151rcu_preempt21:56:3814
321599927478,56cyclictest151rcu_preempt21:56:3814
320389922327,27cyclictest151rcu_preempt22:20:401
320389922327,27cyclictest151rcu_preempt22:20:401
321599920278,21cyclictest151rcu_preempt21:49:0914
321599920278,21cyclictest151rcu_preempt21:49:0914
320739918227,141cyclictest0-21swapper/621:59:0328
320739918227,141cyclictest0-21swapper/621:59:0328
320739917926,108cyclictest0-21swapper/622:45:1928
320739917926,108cyclictest0-21swapper/622:45:1928
320959917332,89cyclictest0-21swapper/922:13:0031
320959917332,89cyclictest0-21swapper/922:12:5931
320549917324,118cyclictest16104-21sed00:20:2523
320959917130,99cyclictest0-21swapper/922:33:3531
320959917130,99cyclictest0-21swapper/922:33:3531
320959917030,93cyclictest0-21swapper/923:32:3731
320959917029,96cyclictest0-21swapper/900:20:1431
306322170162,7sleep310-21swapper/3119:07:4125
320959916832,82cyclictest0-21swapper/900:04:4231
320959916628,88cyclictest0-21swapper/922:17:3531
320959916628,88cyclictest0-21swapper/922:17:3531
320959916530,17cyclictest0-21swapper/923:15:3231
320959916432,86cyclictest0-21swapper/921:15:4831
320959916432,86cyclictest0-21swapper/921:15:4831
320959916427,89cyclictest0-21swapper/921:47:2031
320959916427,89cyclictest0-21swapper/921:47:1931
320959916228,91cyclictest0-21swapper/923:51:5231
321429915725,131cyclictest0-21swapper/1722:15:169
321429915725,131cyclictest0-21swapper/1722:15:169
321289915633,122cyclictest0-21swapper/1421:30:196
321289915633,122cyclictest0-21swapper/1421:30:196
320959914926,81cyclictest0-21swapper/922:45:0431
320959914926,81cyclictest0-21swapper/922:45:0431
320549914749,76cyclictest0-21swapper/300:07:0023
321289914632,83cyclictest0-21swapper/1400:32:026
320549914423,87cyclictest0-21swapper/323:05:1623
322089914232,51cyclictest0-21swapper/3121:40:1425
322089914232,51cyclictest0-21swapper/3121:40:1425
321089914213,101cyclictest0-21swapper/1100:16:023
321089914145,59cyclictest0-21swapper/1119:10:213
32108991410,84cyclictest0-21swapper/1122:08:133
32108991410,84cyclictest0-21swapper/1122:08:133
32108991410,84cyclictest0-21swapper/1120:45:233
32082991410,83cyclictest0-21swapper/719:35:1929
321089914031,67cyclictest0-21swapper/1123:10:133
32108991400,86cyclictest0-21swapper/1123:49:143
32108991400,83cyclictest0-21swapper/1123:35:203
32082991400,83cyclictest0-21swapper/719:32:3829
320549914028,75cyclictest0-21swapper/300:00:1923
32108991390,82cyclictest0-21swapper/1123:20:213
320739913918,90cyclictest0-21swapper/621:47:1728
320739913918,90cyclictest0-21swapper/621:47:1728
320549913956,61cyclictest0-21swapper/323:47:4523
32108991380,82cyclictest0-21swapper/1120:05:183
32082991380,82cyclictest0-21swapper/720:05:1429
320549913819,89cyclictest0-21swapper/322:14:3023
320549913819,89cyclictest0-21swapper/322:14:2923
320959913727,81cyclictest0-21swapper/922:26:2231
320959913727,81cyclictest0-21swapper/922:26:2231
32082991370,83cyclictest0-21swapper/723:24:0329
32082991370,80cyclictest0-21swapper/720:56:3229
321089913640,65cyclictest0-21swapper/1120:40:013
321089913626,66cyclictest0-21swapper/1121:52:283
321089913626,66cyclictest0-21swapper/1121:52:273
320829913618,16cyclictest0-21swapper/721:35:3329
320829913618,16cyclictest0-21swapper/721:35:3329
321949913532,29cyclictest0-21swapper/2921:05:1122
321739913525,61cyclictest0-21swapper/2422:51:3217
320829913543,56cyclictest0-21swapper/722:38:0529
320829913543,56cyclictest0-21swapper/722:38:0529
320829913531,69cyclictest0-21swapper/700:02:0029
320829913528,64cyclictest0-21swapper/719:15:0129
320549913529,77cyclictest0-21swapper/322:04:3523
320549913529,77cyclictest0-21swapper/322:04:3523
320549913524,71cyclictest0-21swapper/323:12:2823
321429913427,53cyclictest0-21swapper/1721:36:469
321429913427,53cyclictest0-21swapper/1721:36:469
321089913429,64cyclictest0-21swapper/1121:15:183
321089913429,64cyclictest0-21swapper/1121:15:183
321089913426,66cyclictest0-21swapper/1123:16:383
32082991340,85cyclictest0-21swapper/722:19:5529
32082991340,85cyclictest0-21swapper/722:19:5429
32082991340,81cyclictest0-21swapper/722:20:5829
32082991340,81cyclictest0-21swapper/722:20:5829
320549913427,73cyclictest0-21swapper/321:43:1323
320549913427,73cyclictest0-21swapper/321:43:1323
321739913352,56cyclictest0-21swapper/2422:06:2117
321739913352,56cyclictest0-21swapper/2422:06:2017
321429913327,55cyclictest0-21swapper/1721:30:419
321429913327,55cyclictest0-21swapper/1721:30:419
32108991330,77cyclictest0-21swapper/1100:35:113
32082991330,79cyclictest0-21swapper/720:00:2429
32082991330,77cyclictest0-21swapper/722:49:1829
32082991330,77cyclictest0-21swapper/722:49:1829
320549913338,58cyclictest0-21swapper/319:29:3523
320549913328,78cyclictest0-21swapper/300:17:0923
320549913325,59cyclictest0-21swapper/321:23:4323
320549913325,59cyclictest0-21swapper/321:23:4323
321739913244,54cyclictest0-21swapper/2400:37:1917
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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