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2025-12-26 - 07:52
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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 Fri Dec 26, 2025 00:48:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
133429928126,203cyclictest151rcu_preempt20:00:5010
1343599220162,57cyclictest0-21swapper/3021:45:1524
1343599220162,57cyclictest0-21swapper/3021:45:1524
133019916833,79cyclictest0-21swapper/1319:10:015
132819914852,91cyclictest0-21swapper/1100:05:293
134189914749,97cyclictest0-21swapper/2800:30:0921
134189914349,57cyclictest0-21swapper/2800:25:5221
133949914117,75cyclictest0-21swapper/2500:21:3518
13394991410,83cyclictest0-21swapper/2521:50:1518
13394991410,83cyclictest0-21swapper/2521:50:1518
13206991410,82cyclictest0-21swapper/121:16:251
13301991400,87cyclictest0-21swapper/1321:11:505
132499914054,57cyclictest0-21swapper/722:05:1029
132499914054,57cyclictest0-21swapper/722:05:1029
13394991390,85cyclictest0-21swapper/2522:43:2518
13394991390,85cyclictest0-21swapper/2522:43:2518
132499913847,62cyclictest0-21swapper/721:05:2829
13394991370,85cyclictest0-21swapper/2522:46:3718
13394991370,85cyclictest0-21swapper/2522:46:3718
13281991370,86cyclictest0-21swapper/1119:55:243
132499913728,65cyclictest0-21swapper/722:15:1929
132499913728,65cyclictest0-21swapper/722:15:1929
132499913650,66cyclictest0-21swapper/721:31:3029
132499913551,65cyclictest0-21swapper/722:55:2429
132499913551,65cyclictest0-21swapper/722:55:2429
132499913530,62cyclictest0-21swapper/722:31:5329
132499913530,62cyclictest0-21swapper/722:31:5329
132449913527,68cyclictest0-21swapper/621:15:2728
133949913428,58cyclictest0-21swapper/2519:45:5218
133199913423,77cyclictest0-21swapper/1522:51:167
133199913423,77cyclictest0-21swapper/1522:51:167
132499913428,66cyclictest0-21swapper/720:50:2029
132499913428,64cyclictest0-21swapper/722:45:1529
132499913428,64cyclictest0-21swapper/722:45:1529
132449913428,64cyclictest0-21swapper/621:20:4828
13394991330,83cyclictest0-21swapper/2523:21:5318
13325991330,86cyclictest0-21swapper/1622:25:388
13325991330,86cyclictest0-21swapper/1622:25:388
132499913356,63cyclictest0-21swapper/723:44:3429
132499913349,64cyclictest0-21swapper/723:11:5829
132499913330,67cyclictest0-21swapper/719:35:0229
132449913344,62cyclictest0-21swapper/623:56:1828
132449913341,55cyclictest0-21swapper/622:56:5928
132449913341,55cyclictest0-21swapper/622:56:5928
132069913351,55cyclictest0-21swapper/100:09:351
133649913227,104cyclictest0-21swapper/2121:22:3914
132499913228,61cyclictest0-21swapper/723:31:1229
132499913227,63cyclictest0-21swapper/721:40:3529
132499913227,62cyclictest0-21swapper/721:11:1229
132449913230,67cyclictest0-21swapper/621:44:0528
132449913227,69cyclictest0-21swapper/623:44:0128
132449913226,78cyclictest0-21swapper/622:32:0828
132449913226,78cyclictest0-21swapper/622:32:0728
134189913127,72cyclictest0-21swapper/2800:09:5021
133259913120,103cyclictest0-21swapper/1623:35:488
132499913129,64cyclictest0-21swapper/721:19:4529
132499913127,64cyclictest0-21swapper/722:14:4729
132499913127,64cyclictest0-21swapper/722:14:4729
132449913130,71cyclictest0-21swapper/621:54:2828
132449913130,71cyclictest0-21swapper/621:54:2828
132449913130,68cyclictest0-21swapper/623:17:1828
330891130122,6phc2sys0-21swapper/219:05:2112
134189913032,56cyclictest0-21swapper/2822:34:4321
134189913032,56cyclictest0-21swapper/2822:34:4321
133259913018,43cyclictest0-21swapper/1621:47:388
133259913018,43cyclictest0-21swapper/1621:47:388
132499913029,63cyclictest0-21swapper/723:05:0129
132449913027,68cyclictest0-21swapper/622:37:1328
132449913027,68cyclictest0-21swapper/622:37:1328
132449913027,67cyclictest0-21swapper/621:12:4728
132069913051,54cyclictest0-21swapper/119:47:451
132069913048,54cyclictest0-21swapper/121:49:531
132069913048,54cyclictest0-21swapper/121:49:531
133649912927,91cyclictest0-21swapper/2122:15:0114
133649912927,91cyclictest0-21swapper/2122:15:0014
133199912925,66cyclictest0-21swapper/1521:11:207
133199912920,71cyclictest0-21swapper/1523:06:137
132819912930,50cyclictest0-21swapper/1122:07:273
132819912930,50cyclictest0-21swapper/1122:07:273
132499912946,51cyclictest0-21swapper/721:49:0829
132499912946,51cyclictest0-21swapper/721:49:0829
132449912929,69cyclictest0-21swapper/622:17:5928
132449912929,69cyclictest0-21swapper/622:17:5928
132449912928,73cyclictest0-21swapper/621:27:4528
132449912927,71cyclictest0-21swapper/623:07:0928
132449912927,69cyclictest0-21swapper/622:03:3328
132449912927,69cyclictest0-21swapper/622:03:3328
132449912927,59cyclictest0-21swapper/622:22:1528
132449912927,59cyclictest0-21swapper/622:22:1528
132449912926,67cyclictest0-21swapper/620:23:3828
132449912926,63cyclictest0-21swapper/622:14:1428
132449912926,63cyclictest0-21swapper/622:14:1428
132069912948,58cyclictest0-21swapper/123:19:081
133649912827,79cyclictest0-21swapper/2121:17:1114
133649912827,59cyclictest0-21swapper/2121:10:1914
133519912817,71cyclictest0-21swapper/1923:57:0111
133259912822,104cyclictest0-21swapper/1622:07:318
133259912822,104cyclictest0-21swapper/1622:07:318
133259912817,84cyclictest0-21swapper/1623:16:178
133199912835,56cyclictest0-21swapper/1521:06:317
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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