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2026-06-25 - 19:15
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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 Thu Jun 25, 2026 12:49:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195479926668,28cyclictest151rcu_preempt10:22:0322
195429924683,1cyclictest151rcu_preempt12:36:4621
330891180172,6phc2sys0-21swapper/207:07:3012
195389915227,93cyclictest0-21swapper/2710:21:4420
19538991518,134cyclictest151rcu_preempt10:32:5720
19550991500,90cyclictest0-21swapper/3009:24:3524
19550991500,90cyclictest0-21swapper/3009:24:3524
194829914727,24cyclictest137-21ksoftirqd/2011:53:3513
193829914140,100cyclictest0-21swapper/509:51:4227
193829914140,100cyclictest0-21swapper/509:51:4227
19550991390,87cyclictest0-21swapper/3011:09:2124
194829913943,62cyclictest0-21swapper/2010:00:0213
194829913943,62cyclictest0-21swapper/2010:00:0213
144342138128,7sleep190-21swapper/1907:05:1311
195319913747,57cyclictest0-21swapper/2611:50:2619
193829913642,66cyclictest0-21swapper/512:29:0627
195319913540,62cyclictest0-21swapper/2612:12:5319
195319913527,67cyclictest0-21swapper/2609:35:1319
1943799135134,1cyclictest151rcu_preempt12:13:125
193829913546,56cyclictest0-21swapper/511:35:3927
193829913544,57cyclictest0-21swapper/510:40:3627
193829913539,62cyclictest0-21swapper/511:28:4327
195509913451,53cyclictest0-21swapper/3009:35:1724
195509913445,64cyclictest0-21swapper/3010:44:1424
195509913439,68cyclictest0-21swapper/3011:02:2524
193829913451,58cyclictest0-21swapper/507:21:1627
193829913451,56cyclictest0-21swapper/509:43:2527
193829913451,56cyclictest0-21swapper/509:43:2527
193829913442,64cyclictest0-21swapper/510:17:0527
195509913337,62cyclictest0-21swapper/3010:04:4024
195509913337,62cyclictest0-21swapper/3010:04:4024
195509913334,68cyclictest0-21swapper/3012:22:3524
195319913327,62cyclictest0-21swapper/2609:40:3319
195319913327,62cyclictest0-21swapper/2609:40:3319
193829913346,61cyclictest0-21swapper/511:43:0827
193829913343,60cyclictest0-21swapper/510:28:5127
193829913332,65cyclictest0-21swapper/511:13:4527
193829913330,73cyclictest0-21swapper/508:01:2027
193829913326,63cyclictest0-21swapper/510:05:5227
195509913251,63cyclictest0-21swapper/3009:19:1424
195509913251,63cyclictest0-21swapper/3009:19:1324
195509913240,63cyclictest0-21swapper/3010:13:4524
195509913238,67cyclictest0-21swapper/3011:53:4324
195509913228,69cyclictest0-21swapper/3008:26:2024
195319913228,68cyclictest0-21swapper/2610:54:2019
195319913227,65cyclictest0-21swapper/2610:40:2519
193829913246,57cyclictest0-21swapper/511:49:0127
193829913246,56cyclictest0-21swapper/511:23:5427
193829913244,60cyclictest0-21swapper/511:33:3127
193829913244,57cyclictest0-21swapper/510:00:0027
193829913244,57cyclictest0-21swapper/509:59:5927
193829913230,69cyclictest0-21swapper/511:03:0327
193829913229,66cyclictest0-21swapper/512:02:3927
193829913227,64cyclictest0-21swapper/510:30:1527
195509913151,52cyclictest0-21swapper/3009:08:0024
195509913151,52cyclictest0-21swapper/3009:08:0024
195509913147,61cyclictest0-21swapper/3007:10:1124
195509913128,69cyclictest0-21swapper/3011:59:3624
195509913127,70cyclictest0-21swapper/3012:03:5124
195509913126,73cyclictest0-21swapper/3012:27:5524
195319913128,72cyclictest0-21swapper/2608:25:4319
195319913127,65cyclictest0-21swapper/2609:02:2619
195319913127,65cyclictest0-21swapper/2609:02:2619
193829913145,58cyclictest0-21swapper/512:09:2027
193829913130,65cyclictest0-21swapper/509:25:4627
193829913130,65cyclictest0-21swapper/509:25:4627
193829913129,69cyclictest0-21swapper/511:10:0027
193829913128,71cyclictest0-21swapper/510:13:5327
193829913128,68cyclictest0-21swapper/510:53:0527
193829913128,67cyclictest0-21swapper/511:58:0627
1955599130129,1cyclictest151rcu_preempt12:35:5625
195509913045,58cyclictest0-21swapper/3012:06:0024
195509913028,72cyclictest0-21swapper/3010:32:2824
195509913028,70cyclictest0-21swapper/3012:38:3724
195509913028,68cyclictest0-21swapper/3010:28:4424
195319913036,59cyclictest0-21swapper/2607:13:3619
195319913027,66cyclictest0-21swapper/2611:00:1219
195319913023,69cyclictest0-21swapper/2610:13:4319
194829913028,48cyclictest0-21swapper/2009:25:1713
194829913028,48cyclictest0-21swapper/2009:25:1613
194739913046,56cyclictest0-21swapper/1808:38:4210
193829913052,58cyclictest0-21swapper/509:23:0727
193829913052,58cyclictest0-21swapper/509:23:0627
193829913030,73cyclictest0-21swapper/512:33:2327
193829913028,71cyclictest0-21swapper/509:48:4527
193829913028,71cyclictest0-21swapper/509:48:4527
193829913028,67cyclictest0-21swapper/508:30:1227
193829913027,69cyclictest0-21swapper/509:32:4327
193829913027,69cyclictest0-21swapper/509:32:4327
193829913026,59cyclictest0-21swapper/507:36:1527
195509912953,62cyclictest0-21swapper/3009:40:3724
195509912953,62cyclictest0-21swapper/3009:40:3724
195509912937,57cyclictest0-21swapper/3008:18:5124
195509912929,64cyclictest0-21swapper/3011:35:0024
195509912928,67cyclictest0-21swapper/3008:40:1424
195509912927,67cyclictest0-21swapper/3010:45:5024
195509912927,66cyclictest0-21swapper/3011:26:5924
195509912926,65cyclictest0-21swapper/3011:15:1424
19538991290,81cyclictest0-21swapper/2712:20:4320
195319912948,59cyclictest0-21swapper/2607:26:2519
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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