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2026-05-27 - 14:28
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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 May 27, 2026 00:49:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
960399316119,1cyclictest151rcu_preempt22:07:030
960399296120,25cyclictest151rcu_preempt23:55:340
96039919120,101cyclictest0-21swapper/000:00:250
9695991440,84cyclictest0-21swapper/1921:11:4411
9695991440,84cyclictest0-21swapper/1921:11:4411
9667991420,88cyclictest0-21swapper/1223:55:164
9695991410,83cyclictest0-21swapper/1919:20:2111
9695991410,82cyclictest0-21swapper/1922:10:1711
96769914110,25cyclictest0-21swapper/1421:42:586
9667991410,88cyclictest0-21swapper/1223:00:144
9695991400,83cyclictest0-21swapper/1923:35:1711
9695991400,82cyclictest0-21swapper/1921:25:2311
3273911390,131ptp4l0-21swapper/119:09:581
97639913811,98cyclictest151rcu_preempt23:38:4125
96959913827,68cyclictest0-21swapper/1920:52:1511
96959913827,68cyclictest0-21swapper/1920:52:1511
9695991380,85cyclictest0-21swapper/1922:49:5111
9724991370,80cyclictest0-21swapper/2522:00:1418
96959913628,64cyclictest0-21swapper/1921:44:0611
96959913619,80cyclictest0-21swapper/1922:32:4311
9747991350,84cyclictest0-21swapper/2921:03:3922
9747991350,84cyclictest0-21swapper/2921:03:3822
96959913537,63cyclictest0-21swapper/1921:17:5511
9695991350,79cyclictest0-21swapper/1923:20:1911
9747991341,72cyclictest0-21swapper/2900:05:2322
96959913428,70cyclictest0-21swapper/1921:47:5011
96959913326,72cyclictest0-21swapper/1922:09:4511
9691991330,81cyclictest0-21swapper/1823:34:4310
96259913339,48cyclictest151rcu_preempt21:50:3626
96959913228,66cyclictest0-21swapper/1922:51:1211
9695991320,77cyclictest0-21swapper/1921:30:4411
96959913130,68cyclictest0-21swapper/1922:56:4511
9695991310,79cyclictest0-21swapper/1900:30:2011
96679913140,55cyclictest0-21swapper/1223:52:044
96679913123,69cyclictest0-21swapper/1223:37:364
9747991300,82cyclictest0-21swapper/2919:40:1722
96959913030,73cyclictest0-21swapper/1923:08:0111
96959913028,69cyclictest0-21swapper/1920:00:2511
96959913028,69cyclictest0-21swapper/1920:00:2511
96959913025,65cyclictest0-21swapper/1922:43:4211
96959913025,62cyclictest0-21swapper/1923:41:0911
96849913085,1cyclictest151rcu_preempt20:10:228
96849913085,1cyclictest151rcu_preempt20:10:228
96679913045,56cyclictest0-21swapper/1221:48:364
96039913015,62cyclictest151rcu_preempt23:03:280
97639912933,95cyclictest0-21swapper/3100:13:2625
97639912932,94cyclictest0-21swapper/3123:10:2125
97249912944,56cyclictest0-21swapper/2522:28:0218
96959912929,67cyclictest0-21swapper/1923:12:0011
96959912927,59cyclictest0-21swapper/1921:20:0311
96959912925,66cyclictest0-21swapper/1923:46:2911
96919912949,56cyclictest0-21swapper/1800:11:0410
97639912828,57cyclictest0-21swapper/3100:25:1125
9747991280,91cyclictest0-21swapper/2922:10:5922
97249912840,58cyclictest0-21swapper/2500:13:5218
97249912837,62cyclictest0-21swapper/2500:09:0318
96959912832,75cyclictest0-21swapper/1922:23:3911
96959912826,61cyclictest0-21swapper/1923:50:1511
96919912843,57cyclictest0-21swapper/1800:06:1610
96259912835,38cyclictest151rcu_preempt22:35:1426
97639912736,60cyclictest0-21swapper/3123:48:1725
97249912736,61cyclictest0-21swapper/2521:47:1518
96959912727,67cyclictest0-21swapper/1900:15:2211
96919912740,52cyclictest0-21swapper/1822:18:5010
97249912657,58cyclictest0-21swapper/2500:23:2918
96919912642,56cyclictest0-21swapper/1823:27:1510
96919912640,54cyclictest0-21swapper/1819:42:1410
96919912625,61cyclictest0-21swapper/1820:10:0210
96919912625,61cyclictest0-21swapper/1820:10:0210
96679912630,64cyclictest0-21swapper/1200:03:174
96679912628,65cyclictest0-21swapper/1200:39:384
96679912627,66cyclictest0-21swapper/1222:42:384
96679912627,66cyclictest0-21swapper/1222:22:004
96679912626,64cyclictest0-21swapper/1221:20:164
96679912624,59cyclictest0-21swapper/1222:51:424
97249912529,67cyclictest0-21swapper/2521:56:2818
97249912525,66cyclictest0-21swapper/2521:36:1118
97249912519,74cyclictest0-21swapper/2522:37:2518
96919912543,58cyclictest0-21swapper/1822:29:3110
96919912543,55cyclictest0-21swapper/1822:50:5210
96679912551,56cyclictest0-21swapper/1222:03:504
96679912527,64cyclictest0-21swapper/1221:59:494
96679912526,64cyclictest0-21swapper/1220:19:374
96679912526,64cyclictest0-21swapper/1220:19:374
96679912525,65cyclictest0-21swapper/1221:35:144
96679912525,64cyclictest0-21swapper/1221:41:394
96679912525,64cyclictest0-21swapper/1221:05:184
96679912525,64cyclictest0-21swapper/1221:05:184
97249912428,66cyclictest0-21swapper/2523:13:2818
97249912427,63cyclictest0-21swapper/2522:30:1018
97249912426,66cyclictest0-21swapper/2523:02:1418
97249912426,65cyclictest0-21swapper/2522:14:4018
97249912425,67cyclictest0-21swapper/2522:15:1518
97249912425,65cyclictest0-21swapper/2521:42:3618
97249912425,64cyclictest0-21swapper/2521:16:2418
97249912424,58cyclictest0-21swapper/2519:50:2218
97249912424,58cyclictest0-21swapper/2519:50:2218
9709991240,85cyclictest0-21swapper/2223:44:2715
96959912430,60cyclictest0-21swapper/1900:00:2411
96959912425,57cyclictest0-21swapper/1923:01:3611
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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