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2025-11-25 - 14:21
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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 Tue Nov 25, 2025 00:50:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2562699302104,2cyclictest151rcu_preempt22:08:3917
2482912960,287ptp4l0-21swapper/119:06:551
228652183174,7sleep290-21swapper/2919:05:2222
256269916523,35cyclictest0-21swapper/2420:55:2417
255919915764,46cyclictest151rcu_preempt22:27:2710
255919915764,46cyclictest151rcu_preempt22:27:2610
25591991508,122cyclictest0-21swapper/1800:19:0610
255249914939,101cyclictest0-21swapper/400:10:2026
255249914939,101cyclictest0-21swapper/400:10:1926
25532991470,88cyclictest0-21swapper/600:05:0228
25532991470,88cyclictest0-21swapper/600:05:0228
255849914643,60cyclictest151rcu_preempt22:18:539
255849914643,60cyclictest151rcu_preempt22:18:529
25660991450,84cyclictest0-21swapper/2923:53:3922
25660991450,84cyclictest0-21swapper/2923:53:3922
255919914593,38cyclictest0-21swapper/1822:52:0110
255919914593,38cyclictest0-21swapper/1822:52:0110
255249914543,94cyclictest151rcu_preempt23:42:0526
255249914543,94cyclictest151rcu_preempt23:42:0426
256609914220,49cyclictest0-21swapper/2921:27:3522
255919913936,101cyclictest151rcu_preempt22:18:2110
255919913936,101cyclictest151rcu_preempt22:18:2010
255069913950,61cyclictest0-21swapper/000:11:110
255069913950,61cyclictest0-21swapper/000:11:110
255069913950,59cyclictest0-21swapper/022:57:560
255069913950,59cyclictest0-21swapper/022:57:560
255069913936,22cyclictest0-21swapper/021:19:150
25506991390,85cyclictest0-21swapper/023:54:340
25506991390,85cyclictest0-21swapper/023:54:340
255069913649,59cyclictest0-21swapper/023:10:130
255069913649,59cyclictest0-21swapper/023:10:130
255069913646,59cyclictest0-21swapper/022:45:340
255069913646,59cyclictest0-21swapper/022:45:340
255069913627,65cyclictest0-21swapper/021:31:540
255069913623,68cyclictest0-21swapper/021:38:500
25668991350,82cyclictest0-21swapper/3119:46:4825
25660991350,84cyclictest0-21swapper/2900:39:3822
255659913547,87cyclictest0-21swapper/1423:18:406
255659913547,87cyclictest0-21swapper/1423:18:396
255069913553,57cyclictest0-21swapper/022:38:550
255069913529,70cyclictest0-21swapper/000:35:440
25584991340,76cyclictest0-21swapper/1723:47:349
255069913442,63cyclictest0-21swapper/023:27:200
255069913442,63cyclictest0-21swapper/023:27:190
255069913430,69cyclictest0-21swapper/022:33:200
255069913430,69cyclictest0-21swapper/022:33:200
255069913427,72cyclictest0-21swapper/023:01:040
255069913427,72cyclictest0-21swapper/023:01:040
25660991330,82cyclictest0-21swapper/2923:42:5922
25660991330,82cyclictest0-21swapper/2923:42:5822
2563199133129,2cyclictest151rcu_preempt23:22:0418
2563199133129,2cyclictest151rcu_preempt23:22:0318
255069913337,58cyclictest0-21swapper/023:44:130
255069913337,58cyclictest0-21swapper/023:44:130
255069913329,70cyclictest0-21swapper/000:25:020
255069913328,59cyclictest0-21swapper/023:15:030
255069913328,59cyclictest0-21swapper/023:15:020
255069913326,69cyclictest0-21swapper/022:07:560
255069913326,62cyclictest0-21swapper/019:19:540
255069913325,67cyclictest0-21swapper/000:18:210
255069913229,72cyclictest0-21swapper/000:30:250
255069913229,67cyclictest0-21swapper/023:31:020
255069913229,67cyclictest0-21swapper/023:31:010
255069913228,72cyclictest0-21swapper/022:25:230
255069913228,72cyclictest0-21swapper/022:25:220
255069913228,68cyclictest0-21swapper/023:35:210
255069913228,68cyclictest0-21swapper/023:35:200
255069913228,67cyclictest0-21swapper/023:06:140
255069913228,67cyclictest0-21swapper/023:06:140
255069913228,64cyclictest0-21swapper/021:12:020
255069913225,64cyclictest0-21swapper/000:22:540
25668991311,80cyclictest0-21swapper/3122:10:0025
256609913126,61cyclictest0-21swapper/2919:24:5222
255659913142,74cyclictest0-21swapper/1422:22:336
255659913142,74cyclictest0-21swapper/1422:22:326
255249913140,70cyclictest0-21swapper/420:20:2026
255069913131,72cyclictest0-21swapper/020:01:490
255069913130,75cyclictest0-21swapper/019:45:160
255069913130,72cyclictest0-21swapper/000:07:400
255069913130,72cyclictest0-21swapper/000:07:400
255069913128,69cyclictest0-21swapper/023:55:080
255069913128,69cyclictest0-21swapper/023:55:070
255069913128,67cyclictest0-21swapper/022:16:340
255069913128,67cyclictest0-21swapper/022:16:340
255069913128,67cyclictest0-21swapper/019:21:460
255069913125,62cyclictest0-21swapper/022:13:510
256609913040,59cyclictest0-21swapper/2922:22:4922
256609913040,59cyclictest0-21swapper/2922:22:4822
2559199130128,1cyclictest0-21swapper/1821:19:4010
25532991300,74cyclictest0-21swapper/619:38:3228
255069913028,69cyclictest0-21swapper/019:10:210
255069913028,68cyclictest0-21swapper/021:28:410
255069913028,67cyclictest0-21swapper/019:51:540
255069913027,60cyclictest0-21swapper/020:50:130
256609912941,69cyclictest0-21swapper/2923:49:5622
256609912928,69cyclictest0-21swapper/2923:21:0322
256609912928,69cyclictest0-21swapper/2923:21:0322
255069912956,62cyclictest0-21swapper/023:48:420
255069912931,71cyclictest0-21swapper/020:11:090
255069912930,70cyclictest0-21swapper/022:24:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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