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2026-05-01 - 06:35
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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 May 01, 2026 00:49:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891387378,6phc2sys0-21swapper/219:05:1312
3273912530,245ptp4l0-21swapper/119:09:121
126269922119,199cyclictest151rcu_preempt23:44:098
127519920145,1cyclictest151rcu_preempt00:32:4125
12551991876,165cyclictest0-21swapper/421:12:0926
12600991814,128cyclictest0-21swapper/1320:50:215
12600991804,146cyclictest0-21swapper/1321:50:245
12600991804,138cyclictest0-21swapper/1322:22:315
12551991741,168cyclictest0-21swapper/423:51:5726
12551991741,168cyclictest0-21swapper/423:51:5726
12551991740,167cyclictest0-21swapper/421:47:5826
12551991691,160cyclictest0-21swapper/421:27:2326
12600991684,163cyclictest0-21swapper/1321:40:165
12600991633,126cyclictest0-21swapper/1322:42:175
12600991633,126cyclictest0-21swapper/1322:42:175
125229916235,91cyclictest8446-21taskset20:47:260
12619991554,111cyclictest0-21swapper/1500:28:407
12541991549,142cyclictest151rcu_preempt22:58:0923
12541991549,142cyclictest151rcu_preempt22:58:0923
125519915318,106cyclictest0-21swapper/400:07:5926
125419915324,122cyclictest151rcu_preempt23:43:1823
12551991522,126cyclictest0-21swapper/422:19:2826
12600991514,89cyclictest0-21swapper/1300:25:265
12600991514,146cyclictest0-21swapper/1322:15:015
12600991514,146cyclictest0-21swapper/1322:15:015
125519915127,92cyclictest0-21swapper/420:20:0226
12600991504,95cyclictest0-21swapper/1322:45:185
12600991504,95cyclictest0-21swapper/1322:45:175
12726991490,89cyclictest0-21swapper/2822:50:2021
12726991490,89cyclictest0-21swapper/2822:50:2021
12726991480,88cyclictest0-21swapper/2820:00:2421
12619991484,143cyclictest0-21swapper/1523:45:237
12619991484,143cyclictest0-21swapper/1523:45:237
12522991467,125cyclictest0-21swapper/020:25:170
12726991450,86cyclictest0-21swapper/2800:39:5621
12726991450,85cyclictest0-21swapper/2819:55:2221
125229914434,80cyclictest0-21swapper/022:31:110
125229914434,80cyclictest0-21swapper/022:31:110
125229914432,66cyclictest0-21swapper/022:59:370
125229914432,66cyclictest0-21swapper/022:59:370
125229914321,72cyclictest0-21swapper/023:42:160
12726991420,84cyclictest0-21swapper/2823:35:1421
12726991420,84cyclictest0-21swapper/2823:35:1421
12726991420,83cyclictest0-21swapper/2819:35:1721
12600991420,89cyclictest0-21swapper/1323:06:195
12600991420,89cyclictest0-21swapper/1323:06:195
125229914230,81cyclictest0-21swapper/020:32:000
12726991410,88cyclictest0-21swapper/2821:53:4121
12726991410,87cyclictest0-21swapper/2821:55:3121
12726991410,85cyclictest0-21swapper/2822:01:1021
12726991400,86cyclictest0-21swapper/2821:28:3321
125519914059,61cyclictest0-21swapper/400:11:4126
12522991400,89cyclictest0-21swapper/021:50:010
127269913919,102cyclictest0-21swapper/2823:08:3121
127269913919,102cyclictest0-21swapper/2823:08:3121
12726991390,86cyclictest0-21swapper/2822:40:4421
12726991390,86cyclictest0-21swapper/2822:40:4421
12726991390,83cyclictest0-21swapper/2823:50:4721
12726991390,83cyclictest0-21swapper/2823:50:4721
12726991390,83cyclictest0-21swapper/2800:20:1621
126089913925,113cyclictest20621-21timerwakeupswit23:30:256
126089913925,113cyclictest20621-21timerwakeupswit23:30:246
125229913935,68cyclictest0-21swapper/023:26:420
125229913935,68cyclictest0-21swapper/023:26:410
127269913747,57cyclictest0-21swapper/2823:11:1221
127269913747,57cyclictest0-21swapper/2823:11:1121
127269913740,60cyclictest0-21swapper/2823:45:4021
127269913740,60cyclictest0-21swapper/2823:45:4021
127269913732,68cyclictest0-21swapper/2823:44:3421
12726991370,81cyclictest0-21swapper/2823:20:1721
12726991370,80cyclictest0-21swapper/2800:00:2121
12619991370,85cyclictest0-21swapper/1522:30:187
12619991370,85cyclictest0-21swapper/1522:30:177
125519913715,116cyclictest151rcu_preempt23:05:0126
125519913715,116cyclictest151rcu_preempt23:05:0026
125419913759,75cyclictest0-21swapper/322:15:3623
125229913741,69cyclictest0-21swapper/023:01:390
125229913741,69cyclictest0-21swapper/023:01:390
125419913618,87cyclictest0-21swapper/323:15:1623
125419913618,87cyclictest0-21swapper/323:15:1523
125229913617,81cyclictest0-21swapper/022:43:570
125229913617,81cyclictest0-21swapper/022:43:570
127269913531,72cyclictest0-21swapper/2820:34:3621
127269913521,73cyclictest0-21swapper/2819:40:2321
12726991350,80cyclictest0-21swapper/2819:15:1421
12711991350,84cyclictest0-21swapper/2600:26:4319
12686991350,82cyclictest0-21swapper/2300:14:2216
127269913430,69cyclictest0-21swapper/2820:54:5421
127269913426,63cyclictest0-21swapper/2800:18:4721
12726991340,79cyclictest0-21swapper/2821:20:3421
126089913420,21cyclictest0-21swapper/1422:34:496
126089913420,21cyclictest0-21swapper/1422:34:486
126009913439,58cyclictest0-21swapper/1321:25:035
126009913430,69cyclictest0-21swapper/1322:02:435
127269913339,61cyclictest0-21swapper/2822:16:0921
127269913329,66cyclictest0-21swapper/2819:50:0021
127269913326,70cyclictest0-21swapper/2821:44:0421
12726991330,79cyclictest0-21swapper/2822:49:1721
12726991330,79cyclictest0-21swapper/2822:49:1621
12726991330,79cyclictest0-21swapper/2822:10:1621
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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