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2026-05-31 - 19:04
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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 May 31, 2026 12:49:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912870,279ptp4l0-21swapper/107:07:461
194349920151,93cyclictest0-21swapper/1110:56:233
195179918532,19cyclictest0-21swapper/2510:00:3018
195179918532,19cyclictest0-21swapper/2510:00:3018
195179917831,94cyclictest0-21swapper/2512:18:2418
195179917729,100cyclictest0-21swapper/2510:06:2218
195179917531,90cyclictest0-21swapper/2510:37:5418
195179917531,90cyclictest0-21swapper/2510:37:5418
195179916630,85cyclictest0-21swapper/2509:15:0418
195179916630,85cyclictest0-21swapper/2509:15:0418
19517991630,40cyclictest0-21swapper/2511:13:4318
195179916224,35cyclictest0-21swapper/2511:00:2118
195179915632,71cyclictest0-21swapper/2512:27:2918
194389915513,118cyclictest0-21swapper/1211:36:494
180872151144,6sleep20-21swapper/207:08:1912
1943499146145,0cyclictest82-21ksoftirqd/1110:14:413
1943499146145,0cyclictest82-21ksoftirqd/1110:14:413
193879914520,48cyclictest0-21swapper/407:15:2226
19387991420,82cyclictest0-21swapper/410:30:2426
19387991420,82cyclictest0-21swapper/410:30:2426
193879914019,116cyclictest0-21swapper/412:05:1626
193879913920,91cyclictest0-21swapper/409:47:5326
193879913920,91cyclictest0-21swapper/409:47:5326
193879913920,88cyclictest0-21swapper/409:42:2826
193879913920,88cyclictest0-21swapper/409:42:2826
195179913855,60cyclictest0-21swapper/2511:34:3418
193789913826,109cyclictest0-21swapper/310:18:0123
193789913826,109cyclictest0-21swapper/310:18:0123
195179913754,58cyclictest0-21swapper/2512:02:2118
195179913717,91cyclictest24960-21taskset11:07:3518
19511991360,83cyclictest0-21swapper/2411:10:2117
19387991360,85cyclictest0-21swapper/411:00:2026
19511991351,84cyclictest0-21swapper/2408:35:1917
195119913515,117cyclictest151rcu_preempt09:29:1717
193879913517,93cyclictest0-21swapper/411:07:1726
195179913422,19cyclictest0-21swapper/2511:51:0818
193879913475,47cyclictest0-21swapper/407:45:1826
193879913448,53cyclictest0-21swapper/409:35:5926
193879913448,53cyclictest0-21swapper/409:35:5926
193879913432,40cyclictest0-21swapper/411:14:2926
19557991330,84cyclictest0-21swapper/3008:52:1024
195179913352,64cyclictest0-21swapper/2512:23:1218
19511991330,81cyclictest0-21swapper/2410:48:0517
195179913228,68cyclictest0-21swapper/2509:48:1218
195179913228,68cyclictest0-21swapper/2509:48:1218
195119913219,97cyclictest0-21swapper/2408:25:2317
194389913216,115cyclictest0-21swapper/1211:20:154
194389913215,105cyclictest0-21swapper/1211:10:364
193879913244,60cyclictest0-21swapper/412:13:5826
193879913233,67cyclictest0-21swapper/410:42:3426
193879913232,64cyclictest0-21swapper/410:04:1226
193879913232,64cyclictest0-21swapper/410:04:1226
193879913228,69cyclictest0-21swapper/408:39:3026
195179913153,55cyclictest0-21swapper/2511:15:5118
195179913131,64cyclictest0-21swapper/2510:19:4418
195179913131,64cyclictest0-21swapper/2510:19:4418
195179913128,69cyclictest0-21swapper/2512:33:2218
195179913126,59cyclictest0-21swapper/2509:35:2218
195179913126,59cyclictest0-21swapper/2509:35:2218
194389913115,115cyclictest0-21swapper/1211:42:424
194389913115,115cyclictest0-21swapper/1210:43:544
194389913115,115cyclictest0-21swapper/1209:40:494
194389913115,115cyclictest0-21swapper/1209:40:494
194389913115,102cyclictest0-21swapper/1211:46:584
193879913150,59cyclictest0-21swapper/407:50:1326
193879913129,72cyclictest0-21swapper/409:00:2026
193879913128,63cyclictest0-21swapper/410:54:5926
193879913126,70cyclictest0-21swapper/412:37:3726
195179913029,69cyclictest0-21swapper/2510:59:1718
195179913028,67cyclictest0-21swapper/2509:14:0018
195179913027,65cyclictest0-21swapper/2509:23:3718
195179913024,62cyclictest0-21swapper/2508:18:5718
194389913015,87cyclictest0-21swapper/1212:34:064
194389913015,80cyclictest0-21swapper/1212:10:014
194389913015,102cyclictest0-21swapper/1211:30:234
193879913042,60cyclictest0-21swapper/409:25:3626
193879913035,67cyclictest0-21swapper/410:08:5426
193879913028,69cyclictest0-21swapper/411:39:1826
193879913026,68cyclictest0-21swapper/412:25:0126
193879913025,68cyclictest0-21swapper/412:22:0726
195579912919,87cyclictest0-21swapper/3011:07:5524
195179912929,71cyclictest0-21swapper/2510:46:2818
195179912929,70cyclictest0-21swapper/2511:23:2018
193879912928,73cyclictest0-21swapper/409:20:2126
193879912927,62cyclictest0-21swapper/408:16:3226
193879912922,71cyclictest0-21swapper/409:59:2226
193879912922,71cyclictest0-21swapper/409:59:2226
19550991280,88cyclictest0-21swapper/2912:07:1422
195179912831,75cyclictest0-21swapper/2511:37:4618
195179912828,68cyclictest0-21swapper/2511:57:3318
195179912828,67cyclictest0-21swapper/2507:25:3118
195179912827,69cyclictest0-21swapper/2511:47:5618
195179912827,66cyclictest0-21swapper/2511:27:0518
195179912826,67cyclictest0-21swapper/2510:34:4218
195179912826,67cyclictest0-21swapper/2510:34:4218
194389912815,83cyclictest0-21swapper/1211:09:014
194349912849,78cyclictest82-21ksoftirqd/1112:19:143
193879912842,85cyclictest0-21swapper/407:38:4426
193879912827,68cyclictest0-21swapper/411:55:2426
193879912827,66cyclictest0-21swapper/410:15:1926
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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