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2026-03-17 - 04:33
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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 Mar 17, 2026 00:48:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321189929435,61cyclictest151rcu_preempt23:11:5728
321359927223,242cyclictest0-21swapper/900:25:3731
321359927223,242cyclictest0-21swapper/900:25:3631
3273912430,234ptp4l0-21swapper/119:05:551
3273912430,234ptp4l0-21swapper/119:05:541
3212899155153,1cyclictest64-21ksoftirqd/800:33:5730
3212899155153,1cyclictest64-21ksoftirqd/800:33:5730
321719915119,101cyclictest0-21swapper/1423:34:236
321289914722,123cyclictest0-21swapper/800:20:2330
321289914722,123cyclictest0-21swapper/800:20:2230
32171991460,84cyclictest0-21swapper/1419:29:376
32158991450,84cyclictest0-21swapper/1221:15:114
32124991450,85cyclictest0-21swapper/720:45:2329
32171991440,85cyclictest0-21swapper/1400:12:516
32171991440,85cyclictest0-21swapper/1400:12:506
321719914144,61cyclictest0-21swapper/1421:56:346
32171991410,84cyclictest0-21swapper/1420:34:496
321719914047,59cyclictest0-21swapper/1421:15:266
32171991400,85cyclictest0-21swapper/1419:31:136
32171991390,82cyclictest0-21swapper/1420:59:246
321289913817,94cyclictest0-21swapper/822:20:2230
321189913812,89cyclictest151rcu_preempt21:02:3828
3209699138136,1cyclictest151rcu_preempt23:17:0623
320779913829,64cyclictest0-21swapper/022:53:020
321719913744,55cyclictest0-21swapper/1423:00:436
321719913742,57cyclictest0-21swapper/1421:43:126
321719913739,68cyclictest0-21swapper/1400:21:576
321719913739,68cyclictest0-21swapper/1400:21:566
32171991370,86cyclictest0-21swapper/1423:44:006
32171991370,83cyclictest0-21swapper/1423:39:116
32171991370,83cyclictest0-21swapper/1423:39:106
321589913750,59cyclictest0-21swapper/1220:15:224
321589913725,33cyclictest0-21swapper/1222:54:184
32158991371,83cyclictest0-21swapper/1220:09:444
320779913724,70cyclictest0-21swapper/000:39:260
320779913724,70cyclictest0-21swapper/000:39:250
321719913650,59cyclictest0-21swapper/1422:11:336
321719913640,61cyclictest0-21swapper/1422:21:426
321589913626,67cyclictest0-21swapper/1222:17:104
320779913630,62cyclictest0-21swapper/020:02:470
321949913547,62cyclictest0-21swapper/1700:25:139
321949913547,62cyclictest0-21swapper/1700:25:139
321589913554,59cyclictest0-21swapper/1222:08:204
320779913530,65cyclictest0-21swapper/023:50:020
320779913525,68cyclictest0-21swapper/023:00:170
307672135128,6sleep300-21swapper/3019:07:1224
307672135128,6sleep300-21swapper/3019:07:1124
321949913450,63cyclictest0-21swapper/1722:39:559
321719913429,69cyclictest0-21swapper/1423:52:336
32171991340,83cyclictest0-21swapper/1421:48:016
32171991340,79cyclictest0-21swapper/1419:10:226
321589913426,68cyclictest0-21swapper/1219:37:574
321289913448,58cyclictest0-21swapper/819:20:1530
321719913349,66cyclictest0-21swapper/1423:16:456
321719913337,59cyclictest0-21swapper/1421:28:156
321719913332,62cyclictest0-21swapper/1423:22:386
321189913324,64cyclictest0-21swapper/600:04:1128
320779913332,65cyclictest0-21swapper/023:12:310
320779913329,64cyclictest0-21swapper/020:55:130
320779913327,61cyclictest0-21swapper/020:46:360
32214991329,94cyclictest151rcu_preempt23:58:5213
32214991329,94cyclictest151rcu_preempt23:58:5113
321949913234,62cyclictest0-21swapper/1721:27:149
321719913232,60cyclictest0-21swapper/1422:28:386
321719913231,72cyclictest0-21swapper/1422:34:326
321589913243,53cyclictest0-21swapper/1200:23:204
321589913243,53cyclictest0-21swapper/1200:23:204
321589913226,62cyclictest0-21swapper/1221:55:164
321289913242,62cyclictest0-21swapper/823:35:0930
321289913242,62cyclictest0-21swapper/823:35:0930
321289913225,62cyclictest0-21swapper/819:50:0630
320779913229,63cyclictest0-21swapper/021:10:090
321949913136,66cyclictest0-21swapper/1700:31:389
321949913136,66cyclictest0-21swapper/1700:31:379
321949913128,68cyclictest0-21swapper/1723:24:459
321949913127,62cyclictest0-21swapper/1721:48:379
321719913133,65cyclictest0-21swapper/1400:18:456
321719913133,65cyclictest0-21swapper/1400:18:456
321719913128,68cyclictest0-21swapper/1400:26:456
321719913128,68cyclictest0-21swapper/1400:26:456
321719913127,61cyclictest0-21swapper/1420:30:006
321719913127,59cyclictest0-21swapper/1422:36:396
321719913125,63cyclictest0-21swapper/1419:48:196
321719913118,74cyclictest0-21swapper/1423:49:216
321719913118,74cyclictest0-21swapper/1423:49:206
321719913111,73cyclictest0-21swapper/1421:22:236
321589913145,58cyclictest0-21swapper/1219:22:084
321589913134,63cyclictest0-21swapper/1222:26:494
321289913146,53cyclictest0-21swapper/820:54:0530
321289913130,65cyclictest0-21swapper/800:06:4130
321289913130,65cyclictest0-21swapper/800:06:4030
32077991310,81cyclictest0-21swapper/021:47:200
322149913011,91cyclictest151rcu_preempt23:35:2313
322149913011,91cyclictest151rcu_preempt23:35:2313
321949913030,70cyclictest0-21swapper/1721:12:329
321949913028,67cyclictest0-21swapper/1722:15:529
321949913027,68cyclictest0-21swapper/1719:20:369
32171991300,80cyclictest0-21swapper/1422:52:426
321589913041,57cyclictest0-21swapper/1223:04:184
321589913028,70cyclictest0-21swapper/1200:01:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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