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2026-08-31 - 10:25
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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 rack0slot5.osadl.org (updated Mon Aug 31, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2766546995210,520cyclictest0-21swapper/1000:08:492
2766530995117,44cyclictest0-21swapper/522:47:5011
276654699503473,30cyclictest0-21swapper/1000:02:492
276651799498497,1cyclictest3012863-21kworker/2:2+i915-unordered00:08:498
27665309949718,475cyclictest70-21ksoftirqd/519:12:5011
27665309949619,476cyclictest0-21swapper/500:18:4911
276654699490460,30cyclictest0-21swapper/1000:18:492
27665449948912,59cyclictest0-21swapper/900:08:3115
2766544994887,58cyclictest0-21swapper/922:27:3515
27665449948616,59cyclictest0-21swapper/922:24:4515
276651799482481,1cyclictest3005060-21kworker/2:1+i915-unordered00:02:498
2766536994781,474cyclictest3009135-21sleep00:09:4513
2766530994781,0cyclictest0-21swapper/500:27:4911
2766525994740,56cyclictest0-21swapper/422:03:1010
27665329947323,30cyclictest0-21swapper/622:43:1212
27665329947223,30cyclictest0-21swapper/623:50:3212
27665259947223,30cyclictest0-21swapper/423:19:3310
27665329947122,30cyclictest0-21swapper/622:52:1212
27665259947124,29cyclictest0-21swapper/421:50:3410
27665259947123,30cyclictest0-21swapper/423:25:3310
27665329947021,29cyclictest0-21swapper/621:27:1212
27665309947021,447cyclictest0-21swapper/523:12:1111
27665309947021,447cyclictest0-21swapper/523:12:1111
276651799470468,2cyclictest3016956-21kworker/2:1+i915-unordered00:18:498
27665699946926,29cyclictest0-21swapper/1519:48:507
27665449946920,30cyclictest0-21swapper/923:59:1115
27665329946921,29cyclictest0-21swapper/621:19:1112
27665139946925,30cyclictest0-21swapper/123:47:491
27665329946820,30cyclictest0-21swapper/623:56:1112
27665329946820,30cyclictest0-21swapper/621:23:1212
27665329946820,28cyclictest0-21swapper/619:39:1312
27665449946722,29cyclictest0-21swapper/923:28:1015
27665449946720,30cyclictest0-21swapper/900:30:1315
27665409946721,30cyclictest0-21swapper/822:36:1214
27665329946720,28cyclictest0-21swapper/622:55:1212
27665329946720,28cyclictest0-21swapper/620:37:1312
27665639946524,29cyclictest0-21swapper/1323:15:495
27665449946516,30cyclictest0-21swapper/923:54:1215
27665639946320,29cyclictest0-21swapper/1320:29:455
27665639946320,29cyclictest0-21swapper/1320:29:455
27665449946314,30cyclictest0-21swapper/923:23:3215
27665449946314,29cyclictest0-21swapper/919:54:3315
276656399460460,0cyclictest69750irq/159-i91519:13:505
2766554994608,30cyclictest0-21swapper/1122:30:323
27665449946011,30cyclictest0-21swapper/920:56:1215
27665309946021,0cyclictest151350irq/163-enp3s0-rx-120:10:1111
27665549945911,29cyclictest0-21swapper/1123:47:123
27665549945813,29cyclictest0-21swapper/1120:13:333
27665449945811,29cyclictest0-21swapper/919:29:3415
2766554994579,29cyclictest0-21swapper/1123:26:133
2766554994578,30cyclictest0-21swapper/1123:36:123
27665549945710,29cyclictest0-21swapper/1119:21:133
27665549945710,28cyclictest0-21swapper/1123:32:123
27665549945710,28cyclictest0-21swapper/1100:27:113
2766530994569,30cyclictest0-21swapper/519:15:1311
276656399455454,1cyclictest69750irq/159-i91521:55:505
2766563994549,30cyclictest0-21swapper/1323:11:495
2766563994549,30cyclictest0-21swapper/1323:11:495
2766554994548,29cyclictest0-21swapper/1123:55:333
2766532994540,3cyclictest0-21swapper/623:46:2212
276656399452451,1cyclictest69750irq/159-i91500:08:495
2766554994513,29cyclictest0-21swapper/1121:14:333
2766554994501,30cyclictest0-21swapper/1120:02:343
2766554994501,29cyclictest0-21swapper/1119:40:343
2766525994500,30cyclictest0-21swapper/419:25:1210
2766554994491,29cyclictest0-21swapper/1121:57:343
2766525994492,30cyclictest0-21swapper/422:35:3310
2766525994490,30cyclictest0-21swapper/422:50:3210
2766554994482,30cyclictest0-21swapper/1121:17:333
2766536994481,29cyclictest0-21swapper/721:32:1313
2766525994480,29cyclictest0-21swapper/421:15:3510
2766536994471,29cyclictest0-21swapper/723:53:1113
2766536994470,29cyclictest0-21swapper/720:57:1213
27665259944728,417cyclictest0-21swapper/419:53:1210
27665309944624,420cyclictest0-21swapper/519:47:1211
2766513994460,30cyclictest0-21swapper/119:11:501
2766563994453,29cyclictest0-21swapper/1322:30:495
27665329944524,419cyclictest0-21swapper/621:03:3612
276654699444442,1cyclictest0-21swapper/1021:55:112
27665369944425,418cyclictest0-21swapper/721:58:1113
27665309944423,420cyclictest0-21swapper/523:54:3511
27665259944424,418cyclictest0-21swapper/421:04:3410
27665259944424,417cyclictest0-21swapper/423:04:3410
27665259944424,417cyclictest0-21swapper/423:04:3410
276656399443442,1cyclictest69750irq/159-i91520:33:505
276655899443442,1cyclictest0-21swapper/1219:55:504
27665369944323,419cyclictest0-21swapper/720:02:1113
27665369944323,419cyclictest0-21swapper/719:28:1113
27665369944322,420cyclictest0-21swapper/721:28:1313
276653299443440,2cyclictest2846742-21kworker/u64:5+events_unbound21:33:5012
27665329944322,418cyclictest0-21swapper/623:17:1212
27665309944323,418cyclictest0-21swapper/521:26:1111
27665309944323,0cyclictest0-21swapper/523:34:1111
27665309944322,419cyclictest0-21swapper/520:54:3211
27665309944321,419cyclictest0-21swapper/520:21:1211
27665309944321,419cyclictest0-21swapper/520:21:1211
27665309944320,422cyclictest0-21swapper/522:34:1011
27665259944325,416cyclictest0-21swapper/423:08:3410
27665259944325,416cyclictest0-21swapper/423:08:3410
27665259944323,419cyclictest0-21swapper/419:20:3210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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