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2026-05-31 - 11:52
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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 00:49:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80579929999,1cyclictest88-21ksoftirqd/1222:38:184
3273912280,219ptp4l0-21swapper/119:09:421
3273912280,219ptp4l0-21swapper/119:09:421
8174991996,1cyclictest151rcu_preempt23:50:5420
81249917429,143cyclictest0-21swapper/2123:21:0814
81249917429,143cyclictest0-21swapper/2123:21:0814
80939917323,88cyclictest0-21swapper/1723:30:579
81969917246,110cyclictest0-21swapper/3023:42:5624
81249917229,104cyclictest0-21swapper/2122:38:0714
81249917128,98cyclictest0-21swapper/2100:05:3014
81249917128,98cyclictest0-21swapper/2100:05:3014
81249917128,95cyclictest0-21swapper/2122:22:3714
81249917127,141cyclictest0-21swapper/2121:31:1714
81249917029,109cyclictest0-21swapper/2123:13:2314
81249916622,104cyclictest0-21swapper/2119:35:2014
81249916429,99cyclictest0-21swapper/2123:00:3314
81969916033,126cyclictest0-21swapper/3000:27:5024
81969916033,126cyclictest0-21swapper/3000:27:5024
81969915730,125cyclictest0-21swapper/3022:15:1524
81969915630,75cyclictest0-21swapper/3022:00:1824
81249915527,83cyclictest0-21swapper/2123:08:0214
81019914910,113cyclictest0-21swapper/1819:47:3310
81249914829,66cyclictest0-21swapper/2122:06:0214
81019914610,105cyclictest0-21swapper/1821:21:3610
8006991450,84cyclictest0-21swapper/621:12:2028
80419914382,4cyclictest151rcu_preempt00:07:422
80419914382,4cyclictest151rcu_preempt00:07:412
8196991421,88cyclictest0-21swapper/3021:57:3824
81019914113,71cyclictest0-21swapper/1823:50:1310
80939914057,82cyclictest0-21swapper/1721:36:349
8093991390,86cyclictest0-21swapper/1722:09:119
81969913826,68cyclictest0-21swapper/3000:10:1224
81969913826,68cyclictest0-21swapper/3000:10:1224
80939913755,32cyclictest0-21swapper/1722:35:229
81019913614,90cyclictest0-21swapper/1819:11:1310
80069913652,56cyclictest0-21swapper/623:54:2828
80069913651,55cyclictest0-21swapper/620:00:1228
81969913222,73cyclictest0-21swapper/3000:00:0224
81969913222,73cyclictest0-21swapper/3000:00:0124
80069913228,65cyclictest0-21swapper/620:10:2128
80939913149,50cyclictest0-21swapper/1722:46:369
80069913128,68cyclictest0-21swapper/622:38:3428
80069913128,68cyclictest0-21swapper/621:09:2428
81249913029,63cyclictest0-21swapper/2100:34:3814
81249913029,63cyclictest0-21swapper/2100:34:3714
81249913026,69cyclictest0-21swapper/2123:57:4014
81249913026,69cyclictest0-21swapper/2123:57:4014
80069913032,74cyclictest0-21swapper/600:22:3728
80069913032,74cyclictest0-21swapper/600:22:3728
80069913030,75cyclictest0-21swapper/619:49:4128
80069913029,71cyclictest0-21swapper/622:30:2328
80069913029,63cyclictest0-21swapper/600:16:1228
80069913029,63cyclictest0-21swapper/600:16:1128
80069913028,67cyclictest0-21swapper/623:17:0328
80069913028,67cyclictest0-21swapper/623:17:0228
80069913027,70cyclictest0-21swapper/621:33:1028
81249912949,57cyclictest0-21swapper/2123:44:5414
80069912930,70cyclictest0-21swapper/622:02:3528
80069912929,75cyclictest0-21swapper/622:27:2828
80069912929,74cyclictest0-21swapper/600:29:3428
80069912929,74cyclictest0-21swapper/600:29:3328
80069912929,73cyclictest0-21swapper/622:20:1328
80069912928,71cyclictest0-21swapper/623:06:2128
80069912927,74cyclictest0-21swapper/623:58:4428
80069912927,74cyclictest0-21swapper/623:58:4428
80069912927,68cyclictest0-21swapper/622:45:2128
80069912927,65cyclictest0-21swapper/621:49:1328
80069912925,74cyclictest0-21swapper/623:23:4928
80069912925,74cyclictest0-21swapper/623:23:4928
79829912923,76cyclictest151rcu_preempt22:07:5323
81969912833,65cyclictest0-21swapper/3022:38:1624
8093991280,84cyclictest0-21swapper/1721:21:059
80069912829,64cyclictest0-21swapper/600:10:2028
80069912829,64cyclictest0-21swapper/600:10:2028
80069912828,71cyclictest0-21swapper/622:17:0128
81249912743,56cyclictest0-21swapper/2121:54:3314
81249912740,57cyclictest0-21swapper/2123:34:4614
80069912732,77cyclictest0-21swapper/600:30:3828
80069912732,77cyclictest0-21swapper/600:30:3728
80069912730,76cyclictest0-21swapper/622:08:2828
80069912728,69cyclictest0-21swapper/622:55:1628
81969912638,51cyclictest0-21swapper/3023:06:0324
81969912625,65cyclictest0-21swapper/3021:49:0324
81969912622,68cyclictest0-21swapper/3000:32:2524
81969912622,68cyclictest0-21swapper/3000:32:2524
8124991260,85cyclictest0-21swapper/2123:17:4014
8124991260,85cyclictest0-21swapper/2123:17:3914
81019912619,49cyclictest0-21swapper/1821:25:2210
80069912662,63cyclictest0-21swapper/623:30:1428
80069912630,70cyclictest0-21swapper/620:22:1728
80069912628,65cyclictest0-21swapper/623:43:3628
80069912626,65cyclictest0-21swapper/621:53:1328
80339912552,63cyclictest0-21swapper/920:56:2931
80069912558,66cyclictest0-21swapper/600:01:4628
80069912558,66cyclictest0-21swapper/600:01:4528
80069912528,71cyclictest0-21swapper/623:50:0128
80069912528,61cyclictest0-21swapper/619:21:4428
81969912431,52cyclictest0-21swapper/3023:29:0224
81969912425,63cyclictest0-21swapper/3021:50:4124
81249912448,57cyclictest0-21swapper/2122:45:0214
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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