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2026-05-18 - 18:25
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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 rackcslot8.osadl.org (updated Mon May 18, 2026 12:49:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
779199338144,1cyclictest151rcu_preempt09:48:3521
63882325318,6sleep150-21swapper/1507:09:057
330891251243,6phc2sys0-21swapper/207:06:1212
3273912230,214ptp4l0-21swapper/107:05:231
777499185100,84cyclictest151rcu_preempt12:35:3018
7774991726,93cyclictest0-21swapper/2508:05:2218
7774991726,93cyclictest0-21swapper/2508:05:2118
77889915717,124cyclictest0-21swapper/2709:50:2220
7766991570,114cyclictest18976-21runrttasks09:25:0017
77889915624,102cyclictest0-21swapper/2710:56:2820
63982151143,6sleep230-21swapper/2307:09:1216
78149914912,87cyclictest151rcu_preempt09:55:1525
77669914023,25cyclictest0-21swapper/2407:15:2317
77669914023,25cyclictest0-21swapper/2407:15:2317
77889913932,103cyclictest151rcu_preempt09:39:0920
77669913851,61cyclictest0-21swapper/2412:00:2217
77669913644,62cyclictest0-21swapper/2410:05:0517
76419913656,58cyclictest0-21swapper/611:34:1428
76419913628,65cyclictest0-21swapper/610:02:5228
77889913529,76cyclictest0-21swapper/2709:40:1320
77669913517,90cyclictest15935-21ssh10:26:2617
76419913529,66cyclictest0-21swapper/608:10:3828
76419913529,66cyclictest0-21swapper/608:10:3728
76419913527,65cyclictest0-21swapper/607:42:1928
76419913527,65cyclictest0-21swapper/607:42:1828
77669913435,89cyclictest0-21swapper/2407:20:1117
77669913435,89cyclictest0-21swapper/2407:20:1117
77669913425,65cyclictest0-21swapper/2410:15:1417
772099134132,1cyclictest151rcu_preempt09:59:1710
76419913429,70cyclictest0-21swapper/610:45:2228
76419913429,70cyclictest0-21swapper/609:15:2228
76419913429,69cyclictest0-21swapper/612:28:5528
76419913428,75cyclictest0-21swapper/609:13:4028
76419913428,70cyclictest0-21swapper/610:52:4328
76419913428,70cyclictest0-21swapper/608:44:0228
76419913428,70cyclictest0-21swapper/608:44:0128
76419913428,69cyclictest0-21swapper/608:05:1728
76419913428,69cyclictest0-21swapper/608:05:1728
76419913427,73cyclictest0-21swapper/611:28:5428
76419913427,73cyclictest0-21swapper/611:15:1928
76419913425,63cyclictest0-21swapper/608:51:4628
7626991340,77cyclictest0-21swapper/409:20:2326
77889913333,83cyclictest0-21swapper/2708:35:0020
77889913333,83cyclictest0-21swapper/2708:35:0020
77669913349,57cyclictest0-21swapper/2407:45:2017
77669913349,57cyclictest0-21swapper/2407:45:2017
77669913344,56cyclictest0-21swapper/2411:41:1717
77669913328,67cyclictest0-21swapper/2411:10:1817
77669913326,62cyclictest0-21swapper/2408:20:1917
77669913326,62cyclictest0-21swapper/2408:20:1917
76419913348,60cyclictest0-21swapper/611:46:3228
76419913340,69cyclictest0-21swapper/612:33:1828
76419913329,73cyclictest0-21swapper/611:06:5928
77669913244,66cyclictest0-21swapper/2410:35:5017
77669913231,67cyclictest0-21swapper/2410:41:3017
77669913227,69cyclictest0-21swapper/2411:25:2917
77669913227,68cyclictest0-21swapper/2409:30:5417
77669913221,110cyclictest8902-21if_enp6s012:35:1817
76419913230,69cyclictest0-21swapper/608:28:5828
76419913230,69cyclictest0-21swapper/608:28:5728
76419913228,72cyclictest0-21swapper/611:02:5228
76419913228,69cyclictest0-21swapper/609:41:1228
76419913227,71cyclictest0-21swapper/609:54:5028
76419913221,68cyclictest0-21swapper/610:59:4128
7791991310,77cyclictest0-21swapper/2807:40:2021
7791991310,77cyclictest0-21swapper/2807:40:2021
77669913131,76cyclictest0-21swapper/2408:43:5117
77669913131,76cyclictest0-21swapper/2408:43:5117
77669913128,70cyclictest0-21swapper/2412:05:2117
77669913127,67cyclictest0-21swapper/2411:45:0217
77669913125,66cyclictest0-21swapper/2410:50:0117
76419913148,63cyclictest0-21swapper/612:06:0228
76419913143,65cyclictest0-21swapper/609:35:0428
76419913141,66cyclictest0-21swapper/612:13:1528
76419913132,76cyclictest0-21swapper/610:12:2828
76419913130,72cyclictest0-21swapper/608:40:0128
77889913023,85cyclictest0-21swapper/2710:25:0720
77889913018,69cyclictest0-21swapper/2711:13:1320
77669913030,67cyclictest0-21swapper/2411:02:1417
77669913029,69cyclictest0-21swapper/2412:30:1217
77669913027,70cyclictest0-21swapper/2409:45:2017
77669913023,74cyclictest0-21swapper/2409:11:5617
76419913064,65cyclictest0-21swapper/610:30:0528
76419913042,67cyclictest0-21swapper/609:20:0628
76419913029,69cyclictest0-21swapper/612:25:0228
76419913027,66cyclictest0-21swapper/608:33:0528
76419913027,66cyclictest0-21swapper/608:33:0428
76419913015,73cyclictest0-21swapper/607:55:1828
76419913015,73cyclictest0-21swapper/607:55:1828
77669912929,62cyclictest0-21swapper/2409:27:2317
77669912927,62cyclictest0-21swapper/2411:50:2217
7696991294,95cyclictest0-21swapper/1410:04:026
7696991294,93cyclictest0-21swapper/1411:40:166
76419912959,69cyclictest0-21swapper/607:30:0128
76419912959,69cyclictest0-21swapper/607:30:0128
76419912957,70cyclictest0-21swapper/611:36:3328
76419912926,66cyclictest0-21swapper/607:10:1428
76419912926,66cyclictest0-21swapper/607:10:1428
77669912847,52cyclictest0-21swapper/2410:23:1517
77669912843,57cyclictest0-21swapper/2408:45:0217
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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