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2026-09-11 - 22:53
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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 Sep 11, 2026 12:49:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315562320310,7sleep80-21swapper/807:05:2430
315562320310,7sleep80-21swapper/807:05:2430
327492269262,6sleep190-21swapper/1907:08:4711
327492269262,6sleep190-21swapper/1907:08:4611
18969925387,51cyclictest34-21ksoftirqd/312:14:5923
18969925387,51cyclictest34-21ksoftirqd/312:14:5923
3273912520,244ptp4l0-21swapper/107:09:311
3273912520,244ptp4l0-21swapper/107:09:311
19539923318,210cyclictest151rcu_preempt07:41:194
19579917623,103cyclictest0-21swapper/1310:10:285
19489917610,141cyclictest0-21swapper/1107:55:223
19489917210,119cyclictest0-21swapper/1110:03:063
19489917010,118cyclictest0-21swapper/1112:37:023
19489917010,118cyclictest0-21swapper/1112:37:023
19579916914,112cyclictest0-21swapper/1309:47:585
19579915822,99cyclictest0-21swapper/1310:52:515
19679915637,105cyclictest0-21swapper/1511:53:177
19679915637,105cyclictest0-21swapper/1511:53:167
1970991461,85cyclictest0-21swapper/1609:20:138
19679914626,119cyclictest0-21swapper/1510:55:187
19449914620,121cyclictest0-21swapper/1012:37:012
19449914620,121cyclictest0-21swapper/1012:37:012
19579914521,91cyclictest0-21swapper/1311:56:265
19579914521,91cyclictest0-21swapper/1311:56:265
1881991430,86cyclictest0-21swapper/111:21:311
19579914220,92cyclictest0-21swapper/1311:16:215
1944991410,87cyclictest0-21swapper/1009:00:182
18879913845,65cyclictest0-21swapper/211:10:1812
18879913845,65cyclictest0-21swapper/211:10:1712
19679913726,110cyclictest0-21swapper/1510:50:467
19449913751,61cyclictest0-21swapper/1007:10:282
19449913651,50cyclictest0-21swapper/1011:58:322
19449913651,50cyclictest0-21swapper/1011:58:312
18879913630,62cyclictest0-21swapper/210:04:1812
18879913628,63cyclictest0-21swapper/210:07:1412
19449913548,56cyclictest0-21swapper/1007:23:192
19579913443,65cyclictest0-21swapper/1309:28:565
18879913428,62cyclictest0-21swapper/209:45:1812
19449913352,51cyclictest0-21swapper/1012:00:412
19449913352,51cyclictest0-21swapper/1012:00:412
19449913344,58cyclictest0-21swapper/1009:40:222
19449913329,68cyclictest0-21swapper/1010:30:202
19449913329,67cyclictest0-21swapper/1009:19:152
19449913326,106cyclictest0-21swapper/1008:55:132
19449913325,71cyclictest0-21swapper/1012:08:102
19449913325,71cyclictest0-21swapper/1012:08:092
19579913256,64cyclictest0-21swapper/1309:32:095
19579913230,70cyclictest0-21swapper/1309:52:125
19449913229,71cyclictest0-21swapper/1011:50:312
19449913229,71cyclictest0-21swapper/1011:50:312
19449913228,70cyclictest0-21swapper/1011:30:282
19449913227,69cyclictest0-21swapper/1011:13:062
19449913227,69cyclictest0-21swapper/1011:13:052
19449913226,63cyclictest0-21swapper/1009:45:592
2036991310,84cyclictest0-21swapper/3011:53:3124
2036991310,84cyclictest0-21swapper/3011:53:3124
19579913131,64cyclictest0-21swapper/1310:34:095
19579913130,71cyclictest0-21swapper/1309:39:375
19579913128,68cyclictest0-21swapper/1309:12:545
19579913128,66cyclictest0-21swapper/1311:21:115
19449913146,57cyclictest0-21swapper/1011:15:472
19449913131,68cyclictest0-21swapper/1007:40:252
19449913128,69cyclictest0-21swapper/1011:46:472
19449913128,69cyclictest0-21swapper/1011:46:462
19209913127,65cyclictest0-21swapper/609:22:2328
18879913128,61cyclictest0-21swapper/209:31:2612
19579913041,61cyclictest0-21swapper/1312:11:575
19579913041,61cyclictest0-21swapper/1312:11:575
19579913040,60cyclictest0-21swapper/1308:33:405
19579913028,66cyclictest0-21swapper/1308:47:155
19579913028,60cyclictest0-21swapper/1308:40:195
19579913026,67cyclictest0-21swapper/1309:40:425
19449913039,65cyclictest0-21swapper/1010:15:232
19449913028,70cyclictest0-21swapper/1010:59:442
19449913028,67cyclictest0-21swapper/1012:20:272
19449913028,67cyclictest0-21swapper/1012:20:272
19449913028,66cyclictest0-21swapper/1011:05:202
19449913027,69cyclictest0-21swapper/1010:46:552
19449913026,68cyclictest0-21swapper/1009:05:212
1927991300,79cyclictest0-21swapper/712:20:2429
1927991300,79cyclictest0-21swapper/712:20:2329
19579912936,65cyclictest0-21swapper/1312:25:195
19579912936,65cyclictest0-21swapper/1312:25:185
19579912928,67cyclictest0-21swapper/1307:38:355
19489912946,54cyclictest0-21swapper/1111:03:483
19489912925,103cyclictest0-21swapper/1110:31:263
19449912935,62cyclictest0-21swapper/1010:22:192
19449912929,65cyclictest0-21swapper/1009:20:202
19449912927,68cyclictest0-21swapper/1009:13:222
19449912925,64cyclictest0-21swapper/1007:26:312
19209912929,65cyclictest0-21swapper/610:19:3528
19209912927,67cyclictest0-21swapper/611:31:4428
19209912927,66cyclictest0-21swapper/609:55:0128
18879912929,59cyclictest0-21swapper/212:35:1612
18879912929,59cyclictest0-21swapper/212:35:1612
1881991299,64cyclictest0-21swapper/108:26:281
19579912837,62cyclictest0-21swapper/1308:25:045
19579912833,64cyclictest0-21swapper/1307:10:325
19579912827,59cyclictest0-21swapper/1307:47:575
19579912826,59cyclictest0-21swapper/1307:26:055
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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