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2026-07-05 - 14:50
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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 Jul 05, 2026 00:49:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891345337,6phc2sys0-21swapper/219:05:1312
330891345337,6phc2sys0-21swapper/219:05:1312
3273912490,241ptp4l0-21swapper/119:06:291
3273912490,241ptp4l0-21swapper/119:06:291
105139922822,139cyclictest0-21swapper/823:17:1130
105139922822,139cyclictest0-21swapper/823:17:1030
10552991940,193cyclictest0-21swapper/1819:54:0710
105049917415,115cyclictest0-21swapper/623:04:5328
105049917415,115cyclictest0-21swapper/623:04:5328
10504991669,132cyclictest151rcu_preempt21:15:5428
105049916316,98cyclictest0-21swapper/621:20:4028
105049916316,96cyclictest0-21swapper/622:51:5328
105049916316,96cyclictest0-21swapper/622:51:5328
105009916225,133cyclictest151rcu_preempt21:21:3327
105139915821,124cyclictest0-21swapper/823:10:2630
105139915821,124cyclictest0-21swapper/823:10:2530
104729915717,75cyclictest151rcu_preempt22:49:450
104729915717,75cyclictest151rcu_preempt22:49:450
105369915054,39cyclictest0-21swapper/1422:15:436
105049915019,119cyclictest2687-21taskset19:25:2128
1055699148148,0cyclictest131-21ksoftirqd/1923:26:3611
10547991460,86cyclictest0-21swapper/1720:45:129
105049914515,105cyclictest0-21swapper/600:11:0928
10552991430,85cyclictest0-21swapper/1823:35:2210
10547991430,84cyclictest0-21swapper/1719:55:269
105049914276,63cyclictest52-21ksoftirqd/600:00:4928
10504991420,84cyclictest0-21swapper/600:05:2428
106199914150,55cyclictest0-21swapper/2700:18:1720
105529914151,59cyclictest0-21swapper/1819:41:5010
10552991410,80cyclictest0-21swapper/1821:47:2510
105139914110,130cyclictest151rcu_preempt23:02:5930
105139914110,130cyclictest151rcu_preempt23:02:5830
105049914156,57cyclictest0-21swapper/623:34:3928
104729914123,38cyclictest23551-21taskset19:16:410
105529914053,59cyclictest0-21swapper/1820:43:1610
105529914051,53cyclictest0-21swapper/1822:29:3810
105479914050,56cyclictest0-21swapper/1723:34:509
10552991390,82cyclictest0-21swapper/1821:52:1410
106379913861,52cyclictest0-21swapper/2922:24:1322
106379913852,56cyclictest0-21swapper/2922:18:0422
106199913844,56cyclictest0-21swapper/2719:40:2220
105529913855,56cyclictest0-21swapper/1822:20:1210
105369913830,67cyclictest0-21swapper/1419:30:006
105139913822,77cyclictest0-21swapper/823:25:2430
105049913816,88cyclictest0-21swapper/623:22:3128
10504991380,83cyclictest0-21swapper/621:25:1728
105529913740,59cyclictest0-21swapper/1821:29:4010
105529913726,66cyclictest0-21swapper/1823:10:4810
105529913726,66cyclictest0-21swapper/1823:10:4710
105049913755,58cyclictest0-21swapper/622:49:4428
105049913755,58cyclictest0-21swapper/622:49:4428
105049913752,57cyclictest0-21swapper/620:52:1028
105049913752,56cyclictest0-21swapper/621:55:1428
105049913751,62cyclictest0-21swapper/621:32:3028
104959913747,41cyclictest151rcu_preempt21:30:2426
106199913658,67cyclictest0-21swapper/2720:10:1920
106199913633,61cyclictest0-21swapper/2723:55:1920
10552991360,82cyclictest0-21swapper/1820:00:0010
105369913631,67cyclictest0-21swapper/1419:15:346
105049913654,58cyclictest0-21swapper/619:20:1928
105049913615,75cyclictest0-21swapper/621:50:5728
10472991360,84cyclictest0-21swapper/021:12:390
106379913549,59cyclictest0-21swapper/2921:36:2322
106379913546,54cyclictest0-21swapper/2900:15:3822
106199913529,61cyclictest0-21swapper/2721:50:4620
10536991350,79cyclictest0-21swapper/1423:12:206
10536991350,79cyclictest0-21swapper/1423:12:206
105049913553,58cyclictest0-21swapper/620:10:4028
106379913443,61cyclictest0-21swapper/2921:41:1022
10637991340,82cyclictest0-21swapper/2922:07:5522
10637991340,81cyclictest0-21swapper/2921:12:5222
106199913429,64cyclictest0-21swapper/2722:11:0420
10619991340,81cyclictest0-21swapper/2700:13:2920
105529913449,66cyclictest0-21swapper/1822:03:2610
105529913445,63cyclictest0-21swapper/1822:40:2010
105529913445,63cyclictest0-21swapper/1822:40:2010
105529913427,65cyclictest0-21swapper/1821:34:3610
10552991340,80cyclictest0-21swapper/1823:31:3810
10552991340,80cyclictest0-21swapper/1819:33:1710
10552991340,78cyclictest0-21swapper/1800:26:4110
105479913450,55cyclictest0-21swapper/1723:20:569
105479913431,72cyclictest0-21swapper/1723:12:559
105479913431,72cyclictest0-21swapper/1723:12:549
105479913430,75cyclictest0-21swapper/1723:39:399
105369913430,61cyclictest0-21swapper/1423:05:556
105369913430,61cyclictest0-21swapper/1423:05:546
105049913423,70cyclictest0-21swapper/600:22:4528
106379913351,57cyclictest0-21swapper/2920:05:3122
106379913347,61cyclictest0-21swapper/2923:24:2122
106379913346,55cyclictest0-21swapper/2900:20:2822
106379913327,67cyclictest0-21swapper/2920:56:5022
106379913326,63cyclictest0-21swapper/2923:26:1422
105529913350,61cyclictest0-21swapper/1819:13:2910
105529913327,66cyclictest0-21swapper/1821:42:5410
105529913327,65cyclictest0-21swapper/1821:15:2110
10552991330,75cyclictest0-21swapper/1821:01:2610
105479913345,57cyclictest0-21swapper/1723:58:539
105479913332,68cyclictest0-21swapper/1721:22:379
105479913326,63cyclictest0-21swapper/1700:13:519
105479913325,68cyclictest0-21swapper/1722:03:589
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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