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2026-01-12 - 04:09
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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 Mon Jan 12, 2026 00:48:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174759915831,74cyclictest0-21swapper/1521:22:577
174699915325,127cyclictest0-21swapper/1420:16:096
174699915325,127cyclictest0-21swapper/1420:16:096
17494991500,90cyclictest0-21swapper/1819:35:3610
174699915041,69cyclictest0-21swapper/1423:59:496
17494991460,85cyclictest0-21swapper/1819:15:3610
174949914251,56cyclictest0-21swapper/1800:02:1510
17494991420,84cyclictest0-21swapper/1821:24:0210
17550991410,86cyclictest0-21swapper/2721:10:2020
17550991410,86cyclictest0-21swapper/2721:10:2020
174949914148,57cyclictest0-21swapper/1821:13:2310
174949914148,57cyclictest0-21swapper/1821:13:2310
17494991410,82cyclictest0-21swapper/1820:55:1310
17494991410,82cyclictest0-21swapper/1820:55:1310
17414991410,86cyclictest0-21swapper/322:25:4923
17530991400,84cyclictest0-21swapper/2419:40:1917
174949914047,60cyclictest0-21swapper/1822:14:5010
17494991400,83cyclictest0-21swapper/1800:16:0910
175649913948,58cyclictest0-21swapper/2920:15:2022
175649913948,58cyclictest0-21swapper/2920:15:1922
174949913950,58cyclictest0-21swapper/1822:36:1310
17494991390,85cyclictest0-21swapper/1821:31:3310
17494991390,84cyclictest0-21swapper/1823:05:3710
17494991390,82cyclictest0-21swapper/1821:18:1210
17494991390,82cyclictest0-21swapper/1821:18:1210
17494991390,81cyclictest0-21swapper/1822:01:2910
175649913827,64cyclictest0-21swapper/2923:49:0522
17494991380,86cyclictest0-21swapper/1821:27:4910
17494991380,83cyclictest0-21swapper/1820:37:3310
17494991380,83cyclictest0-21swapper/1820:37:3310
174289913810,125cyclictest151rcu_preempt22:58:2828
174949913730,74cyclictest0-21swapper/1823:13:3810
17494991371,77cyclictest0-21swapper/1800:36:5810
17494991370,81cyclictest0-21swapper/1800:34:1610
17494991370,79cyclictest0-21swapper/1820:16:1310
17494991370,79cyclictest0-21swapper/1820:16:1310
174699913732,49cyclictest0-21swapper/1400:05:246
175649913648,54cyclictest0-21swapper/2921:26:5622
175649913628,64cyclictest0-21swapper/2900:14:1222
174949913631,68cyclictest0-21swapper/1821:37:2510
174949913628,72cyclictest0-21swapper/1823:35:1510
17494991360,81cyclictest0-21swapper/1819:52:4110
175239913511,122cyclictest0-21swapper/2321:30:3416
174949913541,67cyclictest0-21swapper/1819:45:1410
17494991350,82cyclictest0-21swapper/1822:30:5110
17494991350,79cyclictest0-21swapper/1821:50:1510
17494991350,77cyclictest0-21swapper/1819:30:1610
175239913410,94cyclictest0-21swapper/2319:40:1716
175239913410,123cyclictest0-21swapper/2300:25:1916
17494991340,87cyclictest0-21swapper/1821:08:3310
17494991340,87cyclictest0-21swapper/1821:08:3310
174699913440,59cyclictest0-21swapper/1423:08:136
174949913326,66cyclictest0-21swapper/1800:23:0410
174949913323,73cyclictest0-21swapper/1822:19:0710
175649913222,68cyclictest0-21swapper/2922:27:5122
175649913220,68cyclictest0-21swapper/2920:35:0622
175649913220,68cyclictest0-21swapper/2920:35:0622
17530991320,80cyclictest0-21swapper/2421:54:3017
174949913255,69cyclictest0-21swapper/1822:45:1710
17475991320,78cyclictest0-21swapper/1523:45:387
175649913127,62cyclictest0-21swapper/2900:02:2622
175649913119,66cyclictest0-21swapper/2919:44:2122
174949913154,64cyclictest0-21swapper/1823:54:1410
17494991312,78cyclictest0-21swapper/1819:40:2510
174949913126,63cyclictest0-21swapper/1822:51:1110
17494991310,79cyclictest0-21swapper/1823:15:4610
17494991310,78cyclictest0-21swapper/1820:22:3610
17494991310,78cyclictest0-21swapper/1820:22:3610
17494991310,71cyclictest0-21swapper/1821:55:3610
175649913029,59cyclictest0-21swapper/2900:26:1522
174949913024,64cyclictest0-21swapper/1823:29:0710
174949913017,73cyclictest0-21swapper/1823:55:5010
174699913020,41cyclictest0-21swapper/1400:15:186
175649912938,52cyclictest0-21swapper/2919:50:1322
175649912929,60cyclictest0-21swapper/2921:00:1322
175649912929,60cyclictest0-21swapper/2921:00:1322
175649912926,60cyclictest0-21swapper/2900:15:4822
174949912936,63cyclictest0-21swapper/1800:10:1610
174949912926,64cyclictest0-21swapper/1820:45:2110
174949912926,64cyclictest0-21swapper/1820:45:2110
17494991290,77cyclictest0-21swapper/1823:02:5610
174149912942,58cyclictest0-21swapper/319:54:0423
175309912847,55cyclictest0-21swapper/2421:11:2917
175309912847,55cyclictest0-21swapper/2421:11:2917
175309912827,88cyclictest0-21swapper/2420:10:1517
175309912827,88cyclictest0-21swapper/2420:10:1517
174949912829,70cyclictest0-21swapper/1823:30:4210
17494991280,74cyclictest0-21swapper/1823:49:5810
17414991280,77cyclictest0-21swapper/321:35:0323
175649912727,58cyclictest0-21swapper/2920:26:0122
175649912727,58cyclictest0-21swapper/2920:26:0122
175649912725,60cyclictest0-21swapper/2923:36:4722
175309912721,62cyclictest0-21swapper/2400:10:4817
174949912761,64cyclictest0-21swapper/1819:26:0010
17494991270,76cyclictest0-21swapper/1821:48:3710
17494991270,74cyclictest0-21swapper/1820:09:4810
17494991270,74cyclictest0-21swapper/1820:09:4810
174759912747,56cyclictest0-21swapper/1521:51:497
174699912724,59cyclictest0-21swapper/1423:21:356
174149912730,71cyclictest0-21swapper/321:55:2123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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