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2026-05-30 - 09:40
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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 Sat May 30, 2026 00:49:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1028499296105,1cyclictest151rcu_preempt21:56:4513
1028499296105,1cyclictest151rcu_preempt21:56:4513
10359991833,172cyclictest0-21swapper/3023:49:1924
101849917631,101cyclictest0-21swapper/222:24:1112
101849917631,101cyclictest0-21swapper/222:24:1112
101849917537,87cyclictest0-21swapper/223:13:3612
101849917531,114cyclictest0-21swapper/200:00:0012
101849917530,101cyclictest0-21swapper/222:47:5712
101849917530,101cyclictest0-21swapper/222:47:5612
101849917327,129cyclictest0-21swapper/223:28:3312
101849917327,117cyclictest0-21swapper/223:45:4012
102399917233,136cyclictest0-21swapper/1300:00:185
101849917127,137cyclictest0-21swapper/222:52:4412
101849917127,137cyclictest0-21swapper/222:52:4412
102399917032,110cyclictest0-21swapper/1321:16:115
102399916525,122cyclictest0-21swapper/1321:30:065
102399916525,122cyclictest0-21swapper/1321:30:055
10359991644,109cyclictest0-21swapper/3000:08:0324
102069916224,119cyclictest151rcu_preempt21:58:1929
102069916224,119cyclictest151rcu_preempt21:58:1929
10206991610,157cyclictest0-21swapper/723:47:2229
102349915779,2cyclictest151rcu_preempt21:50:094
102349915779,2cyclictest151rcu_preempt21:50:094
101849915726,82cyclictest0-21swapper/222:07:2012
101849915726,82cyclictest0-21swapper/222:07:1912
10359991524,92cyclictest0-21swapper/3022:15:1624
10359991524,92cyclictest0-21swapper/3022:15:1624
102929915117,120cyclictest0-21swapper/2119:35:2014
102399915023,89cyclictest0-21swapper/1320:40:235
10201991490,89cyclictest0-21swapper/620:06:3628
1023999147117,30cyclictest94-21ksoftirqd/1321:41:235
1023999147117,30cyclictest94-21ksoftirqd/1321:41:225
10184991470,88cyclictest0-21swapper/220:20:0812
102399914432,110cyclictest0-21swapper/1322:50:175
102399914432,110cyclictest0-21swapper/1322:50:165
102929914325,117cyclictest0-21swapper/2123:47:0414
102929914325,117cyclictest0-21swapper/2121:24:2014
10249991430,90cyclictest106-21ksoftirqd/1519:56:047
102929914225,84cyclictest0-21swapper/2122:57:2114
102929914225,75cyclictest0-21swapper/2122:01:4614
102929914225,75cyclictest0-21swapper/2122:01:4514
102929914225,116cyclictest0-21swapper/2122:11:2314
102929914225,116cyclictest0-21swapper/2122:11:2214
102929914224,103cyclictest0-21swapper/2121:02:5314
102929914125,115cyclictest0-21swapper/2122:46:3914
102929914125,115cyclictest0-21swapper/2122:46:3914
101849914134,83cyclictest0-21swapper/220:30:3512
3273911400,132ptp4l0-21swapper/119:05:471
10174991400,88cyclictest0-21swapper/023:17:520
102929913924,69cyclictest0-21swapper/2123:10:1014
102929913922,79cyclictest0-21swapper/2121:41:5914
102929913922,79cyclictest0-21swapper/2121:41:5914
10249991380,86cyclictest0-21swapper/1522:17:087
10249991380,86cyclictest0-21swapper/1522:17:077
101909913816,90cyclictest0-21swapper/323:02:5623
102929913722,84cyclictest0-21swapper/2121:54:1714
102929913722,84cyclictest0-21swapper/2121:54:1614
102929913722,82cyclictest0-21swapper/2121:58:2314
102929913722,82cyclictest0-21swapper/2121:58:2314
102179913717,90cyclictest0-21swapper/921:33:4631
102179913717,90cyclictest0-21swapper/921:33:4631
101849913721,86cyclictest0-21swapper/223:53:5912
102179913617,97cyclictest0-21swapper/921:26:1831
102179913617,97cyclictest0-21swapper/921:26:1731
102179913616,76cyclictest0-21swapper/923:40:5831
10201991360,82cyclictest0-21swapper/623:03:4528
103599913530,72cyclictest0-21swapper/3022:07:1624
103599913530,72cyclictest0-21swapper/3022:07:1524
103599913527,71cyclictest0-21swapper/3021:49:3724
102929913518,92cyclictest0-21swapper/2123:00:2814
102179913516,78cyclictest0-21swapper/922:32:3331
102179913516,78cyclictest0-21swapper/922:32:3331
101849913551,58cyclictest0-21swapper/222:43:0912
101849913551,58cyclictest0-21swapper/222:43:0912
103599913448,56cyclictest0-21swapper/3023:11:2424
103599913447,56cyclictest0-21swapper/3021:05:1524
103599913428,73cyclictest0-21swapper/3023:09:4724
102929913425,5cyclictest0-21swapper/2123:52:2414
102929913425,52cyclictest0-21swapper/2100:05:1414
10190991340,82cyclictest0-21swapper/322:12:1023
10190991340,82cyclictest0-21swapper/322:12:0923
103599913351,53cyclictest0-21swapper/3023:04:2724
103599913347,68cyclictest0-21swapper/3020:41:3124
103599913328,70cyclictest0-21swapper/3021:38:5524
102179913316,65cyclictest0-21swapper/921:15:0331
102179913316,115cyclictest0-21swapper/923:06:4631
101909913370,41cyclictest34-21ksoftirqd/323:07:1223
101909913342,69cyclictest0-21swapper/321:05:2123
101849913348,56cyclictest0-21swapper/222:26:5412
101849913348,56cyclictest0-21swapper/222:26:5312
101849913324,71cyclictest0-21swapper/200:37:3012
103599913250,55cyclictest0-21swapper/3021:19:0924
103599913231,71cyclictest0-21swapper/3000:23:0124
103599913230,72cyclictest0-21swapper/3019:50:1224
103599913228,71cyclictest0-21swapper/3000:19:4724
103599913228,70cyclictest0-21swapper/3022:38:4824
103599913228,70cyclictest0-21swapper/3022:38:4824
102929913224,88cyclictest0-21swapper/2123:44:5614
102929913215,92cyclictest0-21swapper/2100:33:0114
10249991320,77cyclictest0-21swapper/1500:27:357
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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