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2026-08-05 - 16:49
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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 Wed Aug 05, 2026 12:48:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1753299488483,4cyclictest19020-21lspci11:16:4426
3273912930,285ptp4l0-21swapper/107:08:511
3273912930,285ptp4l0-21swapper/107:08:501
175959918670,71cyclictest0-21swapper/1710:13:179
176089917846,82cyclictest0-21swapper/1911:21:4011
176089917732,144cyclictest0-21swapper/1912:10:5311
176089917531,143cyclictest0-21swapper/1909:41:1411
176089917331,93cyclictest0-21swapper/1911:30:1711
176089917331,93cyclictest0-21swapper/1911:30:1711
175249916033,110cyclictest0-21swapper/210:55:1512
175249915326,84cyclictest0-21swapper/212:27:1112
17595991470,89cyclictest0-21swapper/1707:29:459
17636991447,82cyclictest0-21swapper/2310:01:2216
17595991440,87cyclictest0-21swapper/1707:16:559
176169914331,28cyclictest0-21swapper/2010:56:2513
176089914357,60cyclictest0-21swapper/1910:24:3211
175959914353,64cyclictest0-21swapper/1712:38:069
17565991430,87cyclictest0-21swapper/1210:29:184
176369914243,58cyclictest0-21swapper/2309:28:2816
17536991420,87cyclictest0-21swapper/512:15:1427
175249914232,67cyclictest0-21swapper/211:23:0212
176169914131,74cyclictest0-21swapper/2012:19:2413
175959914149,58cyclictest0-21swapper/1711:25:149
175959914149,58cyclictest0-21swapper/1711:25:139
17595991411,80cyclictest0-21swapper/1712:06:039
17595991410,84cyclictest0-21swapper/1710:22:059
17595991410,83cyclictest0-21swapper/1707:59:409
175529914129,65cyclictest0-21swapper/912:15:1831
176369914047,56cyclictest0-21swapper/2311:01:2916
176169914026,112cyclictest0-21swapper/2012:05:2213
17595991400,87cyclictest0-21swapper/1710:26:379
17595991400,86cyclictest0-21swapper/1707:20:079
175659914036,79cyclictest0-21swapper/1211:48:534
175659914036,79cyclictest0-21swapper/1211:48:534
175329914032,1cyclictest151rcu_preempt10:20:0226
176169913927,97cyclictest0-21swapper/2010:30:1513
175959913951,62cyclictest0-21swapper/1709:35:199
175959913931,67cyclictest0-21swapper/1709:42:499
17595991390,85cyclictest0-21swapper/1707:30:369
17595991390,83cyclictest0-21swapper/1710:44:169
17595991390,82cyclictest0-21swapper/1708:25:509
175659913934,78cyclictest0-21swapper/1210:46:404
175529913959,60cyclictest0-21swapper/907:45:3931
175529913940,59cyclictest0-21swapper/909:25:0231
176169913828,74cyclictest0-21swapper/2012:35:4613
176169913826,28cyclictest0-21swapper/2011:54:3913
176169913826,28cyclictest0-21swapper/2011:54:3913
175959913852,64cyclictest0-21swapper/1709:53:179
175959913850,61cyclictest0-21swapper/1712:12:289
17595991380,85cyclictest0-21swapper/1711:02:279
17595991380,83cyclictest0-21swapper/1710:50:419
175529913852,59cyclictest0-21swapper/911:43:3031
175529913852,59cyclictest0-21swapper/911:43:2931
176369913729,62cyclictest0-21swapper/2309:09:4616
176089913753,71cyclictest0-21swapper/1910:31:4311
176089913749,54cyclictest0-21swapper/1907:41:2911
175529913731,61cyclictest0-21swapper/909:15:2531
175139913738,65cyclictest151rcu_preempt09:42:570
176169913626,78cyclictest0-21swapper/2012:30:1413
176089913630,70cyclictest0-21swapper/1910:51:4711
175959913648,54cyclictest0-21swapper/1712:21:009
175959913644,61cyclictest0-21swapper/1711:32:559
175959913644,61cyclictest0-21swapper/1711:32:549
175959913641,61cyclictest0-21swapper/1711:37:119
175959913641,61cyclictest0-21swapper/1711:37:109
175959913633,63cyclictest0-21swapper/1711:11:009
175959913627,69cyclictest0-21swapper/1710:04:439
17595991360,82cyclictest0-21swapper/1709:17:419
175659913619,110cyclictest0-21swapper/1212:38:524
175529913630,65cyclictest0-21swapper/910:38:4731
175529913628,64cyclictest0-21swapper/910:15:1731
175529913626,67cyclictest0-21swapper/911:35:1331
175529913626,67cyclictest0-21swapper/911:35:1331
176369913530,65cyclictest0-21swapper/2312:04:0116
176369913528,64cyclictest0-21swapper/2311:51:1016
176369913528,64cyclictest0-21swapper/2311:51:1016
176089913544,58cyclictest0-21swapper/1909:31:3611
176089913540,61cyclictest0-21swapper/1912:39:4411
175959913553,58cyclictest0-21swapper/1708:10:549
175959913530,69cyclictest0-21swapper/1709:59:219
175959913528,62cyclictest0-21swapper/1711:59:379
175959913528,62cyclictest0-21swapper/1711:59:379
175959913527,62cyclictest0-21swapper/1710:45:219
17595991350,83cyclictest0-21swapper/1710:17:339
17565991350,85cyclictest0-21swapper/1212:25:014
175529913527,65cyclictest0-21swapper/912:37:2731
176369913444,55cyclictest0-21swapper/2309:18:5216
176089913446,71cyclictest0-21swapper/1911:02:2911
176089913441,60cyclictest0-21swapper/1912:21:5411
176089913428,69cyclictest0-21swapper/1910:39:3011
176089913427,66cyclictest0-21swapper/1907:27:5311
176089913426,67cyclictest0-21swapper/1907:22:5111
175959913457,65cyclictest0-21swapper/1711:18:289
175959913421,70cyclictest0-21swapper/1712:17:029
17595991340,82cyclictest0-21swapper/1712:34:229
175659913429,85cyclictest0-21swapper/1211:31:364
175659913429,85cyclictest0-21swapper/1211:31:354
175529913428,61cyclictest0-21swapper/911:25:5031
175529913428,61cyclictest0-21swapper/911:25:4931
176089913333,63cyclictest0-21swapper/1911:50:3511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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