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2026-06-11 - 13:42
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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 Thu Jun 11, 2026 00:49:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912640,255ptp4l0-21swapper/119:08:011
3273912640,255ptp4l0-21swapper/119:08:001
37029920711,1cyclictest151rcu_preempt00:38:5226
298472184173,8sleep140-21swapper/1419:05:126
298472184173,8sleep140-21swapper/1419:05:126
3825991780,137cyclictest15218-21sed23:10:2313
3825991780,137cyclictest15218-21sed23:10:2213
38259915914,143cyclictest151rcu_preempt21:55:1913
38259915618,24cyclictest0-21swapper/2022:00:1213
3770991460,85cyclictest0-21swapper/1322:15:415
3882991431,88cyclictest0-21swapper/2623:57:5819
3770991410,87cyclictest0-21swapper/1321:23:175
38259914027,107cyclictest0-21swapper/2021:21:1013
3770991401,86cyclictest0-21swapper/1323:30:205
38259913949,59cyclictest0-21swapper/2019:47:0013
38259913942,64cyclictest0-21swapper/2023:41:2013
38259913853,56cyclictest0-21swapper/2000:19:4413
38259913817,82cyclictest5606-21cpuspeed_turbos23:50:1113
38259913749,56cyclictest0-21swapper/2021:29:3713
38259913748,63cyclictest0-21swapper/2022:31:1913
3882991361,79cyclictest0-21swapper/2621:55:0219
38259913551,57cyclictest0-21swapper/2021:15:1413
38259913549,56cyclictest0-21swapper/2020:19:4413
38259913534,72cyclictest0-21swapper/2021:54:1013
38259913530,73cyclictest0-21swapper/2023:59:1613
37709913546,59cyclictest0-21swapper/1300:00:585
38259913456,58cyclictest0-21swapper/2019:50:1313
38259913428,70cyclictest0-21swapper/2020:45:1613
37709913448,61cyclictest0-21swapper/1300:39:595
38259913357,62cyclictest0-21swapper/2023:45:2213
38259913357,57cyclictest0-21swapper/2019:55:0113
38259913331,74cyclictest0-21swapper/2020:04:4713
38259913330,71cyclictest0-21swapper/2021:10:2413
38259913328,74cyclictest0-21swapper/2022:13:0313
38259913327,72cyclictest0-21swapper/2023:05:4613
38259913327,72cyclictest0-21swapper/2023:05:4613
38259913327,71cyclictest0-21swapper/2022:54:3713
38259913327,71cyclictest0-21swapper/2022:54:3613
38259913326,64cyclictest0-21swapper/2020:52:1213
38259913326,63cyclictest0-21swapper/2021:45:4013
3825991330,76cyclictest0-21swapper/2021:40:4813
37709913350,56cyclictest0-21swapper/1322:03:545
37709913329,65cyclictest0-21swapper/1319:30:325
38259913244,64cyclictest0-21swapper/2000:05:5013
38259913230,77cyclictest0-21swapper/2021:00:1713
38259913229,67cyclictest0-21swapper/2023:00:2913
38259913229,67cyclictest0-21swapper/2023:00:2813
38259913228,68cyclictest0-21swapper/2000:28:4713
38259913227,62cyclictest0-21swapper/2023:20:1613
38259913222,68cyclictest0-21swapper/2019:27:2313
37709913256,69cyclictest0-21swapper/1300:12:275
37709913250,59cyclictest0-21swapper/1319:15:355
37709913248,58cyclictest0-21swapper/1321:39:195
37709913243,59cyclictest0-21swapper/1321:59:055
37709913241,61cyclictest0-21swapper/1323:44:235
37709913228,69cyclictest0-21swapper/1322:26:225
37709913227,69cyclictest0-21swapper/1323:46:315
37269913248,57cyclictest0-21swapper/720:16:2329
37269913225,64cyclictest0-21swapper/722:43:2129
37269913225,64cyclictest0-21swapper/722:43:2129
3890991310,87cyclictest0-21swapper/2722:29:1420
38259913131,72cyclictest0-21swapper/2019:20:2013
38259913129,68cyclictest0-21swapper/2019:30:2713
38259913127,73cyclictest0-21swapper/2019:10:1113
38259913125,64cyclictest0-21swapper/2020:25:3813
38259913121,68cyclictest0-21swapper/2022:44:0313
38259913121,68cyclictest0-21swapper/2022:44:0213
37709913143,57cyclictest0-21swapper/1323:51:525
37709913130,69cyclictest0-21swapper/1322:08:115
37709913129,67cyclictest0-21swapper/1322:35:445
37709913129,67cyclictest0-21swapper/1322:35:435
37709913128,67cyclictest0-21swapper/1321:50:335
37709913127,72cyclictest0-21swapper/1300:29:505
37709913126,63cyclictest0-21swapper/1321:27:335
37269913125,68cyclictest0-21swapper/722:52:5929
37269913125,68cyclictest0-21swapper/722:52:5829
38259913058,66cyclictest0-21swapper/2000:31:2013
38259913041,58cyclictest0-21swapper/2022:17:4513
37709913037,61cyclictest0-21swapper/1321:42:005
37709913030,71cyclictest0-21swapper/1322:45:235
37709913030,71cyclictest0-21swapper/1322:45:225
37709913030,67cyclictest0-21swapper/1322:30:245
37709913028,67cyclictest0-21swapper/1322:22:365
37269913027,69cyclictest0-21swapper/721:14:3829
3882991291,96cyclictest0-21swapper/2600:02:4719
37709912932,80cyclictest0-21swapper/1319:50:365
37709912930,72cyclictest0-21swapper/1321:01:405
37709912929,76cyclictest0-21swapper/1323:08:025
37709912929,76cyclictest0-21swapper/1323:08:025
37709912929,70cyclictest0-21swapper/1321:31:065
37709912928,66cyclictest0-21swapper/1320:10:375
37709912927,69cyclictest0-21swapper/1323:35:185
37709912926,66cyclictest0-21swapper/1300:32:295
37269912948,52cyclictest0-21swapper/720:22:1629
37269912928,72cyclictest0-21swapper/722:31:3729
38829912843,60cyclictest0-21swapper/2623:16:4819
38829912843,58cyclictest0-21swapper/2623:26:4919
38829912839,59cyclictest0-21swapper/2622:36:1219
38829912839,59cyclictest0-21swapper/2622:36:1119
38829912826,60cyclictest0-21swapper/2600:17:4519
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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