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2026-03-10 - 05:37
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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
Characteristics of the 100 highest latencies:
System rackdslot4.osadl.org (updated Tue Mar 10, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208140,23phc2sys0-21swapper/319:06:583
237682203170,21sleep10-21swapper/119:09:041
235372203170,22sleep20-21swapper/219:06:122
237992201167,22sleep00-21swapper/019:09:280
1094221220,2sleep22413499cyclictest19:45:272
2384128562,15sleep10-21swapper/119:10:001
138491570,1ptp4l401ktimersoftd/322:41:103
24135995629,3cyclictest41-21ksoftirqd/322:25:243
138491560,1ptp4l401ktimersoftd/319:55:173
113352540,1sleep30-21swapper/320:55:003
24135995233,10cyclictest41-21ksoftirqd/322:30:243
247442510,2sleep00-21swapper/022:25:190
24134994931,3cyclictest33-21ksoftirqd/223:10:322
24135994817,4cyclictest41-21ksoftirqd/300:05:003
24135994812,9cyclictest41-21ksoftirqd/320:05:183
24135994716,7cyclictest41-21ksoftirqd/300:30:253
107242470,2sleep00-21swapper/021:55:260
2413599452,2cyclictest121rcu_preempt00:25:003
2413599447,8cyclictest41-21ksoftirqd/319:50:003
24135994431,10cyclictest41-21ksoftirqd/321:15:253
2413599441,5cyclictest41-21ksoftirqd/322:24:053
2413599441,5cyclictest41-21ksoftirqd/300:05:063
24135994414,4cyclictest41-21ksoftirqd/321:25:113
2413499440,2cyclictest0-21swapper/223:35:332
138491440,0ptp4l401ktimersoftd/323:04:183
2413599431,4cyclictest41-21ksoftirqd/319:17:513
24135994314,3cyclictest41-21ksoftirqd/322:35:233
24135994313,4cyclictest41-21ksoftirqd/322:55:243
2413599430,5cyclictest41-21ksoftirqd/323:34:333
138491430,0ptp4l401ktimersoftd/319:28:143
24135994237,2cyclictest41-21ksoftirqd/320:40:003
24135994235,4cyclictest41-21ksoftirqd/323:40:003
24135994230,9cyclictest41-21ksoftirqd/323:25:123
24135994226,9cyclictest41-21ksoftirqd/321:55:243
24133994237,3cyclictest25-21ksoftirqd/100:20:001
2413599412,3cyclictest41-21ksoftirqd/321:24:513
2413599411,5cyclictest41-21ksoftirqd/322:48:523
24135994112,6cyclictest41-21ksoftirqd/321:35:233
24135994112,4cyclictest41-21ksoftirqd/320:45:233
2413599410,5cyclictest41-21ksoftirqd/320:28:113
24132994128,4cyclictest9-21ksoftirqd/000:20:010
24135994034,3cyclictest41-21ksoftirqd/320:10:133
24135994030,9cyclictest41-21ksoftirqd/323:05:163
2413599402,10cyclictest41-21ksoftirqd/323:45:223
2413599401,4cyclictest41-21ksoftirqd/322:19:073
24135994014,7cyclictest41-21ksoftirqd/323:55:003
2413599400,5cyclictest41-21ksoftirqd/323:18:373
2413299408,6cyclictest9-21ksoftirqd/020:00:250
2413299408,6cyclictest9-21ksoftirqd/020:00:250
24132994035,2cyclictest9-21ksoftirqd/022:20:010
2413599398,7cyclictest41-21ksoftirqd/319:25:003
2413599397,4cyclictest41-21ksoftirqd/322:10:233
24135993932,4cyclictest41-21ksoftirqd/320:18:383
24135993932,4cyclictest1256-21cron20:35:003
24135993919,8cyclictest41-21ksoftirqd/321:45:203
2413599391,5cyclictest41-21ksoftirqd/300:17:503
24135993913,3cyclictest41-21ksoftirqd/322:05:213
24135993911,6cyclictest41-21ksoftirqd/319:30:243
2413599390,5cyclictest41-21ksoftirqd/300:14:093
2413299398,4cyclictest9-21ksoftirqd/021:15:200
24132993924,5cyclictest9-21ksoftirqd/023:30:180
2413599389,7cyclictest41-21ksoftirqd/323:20:123
2413599381,5cyclictest41-21ksoftirqd/323:41:033
24132993834,3cyclictest9-21ksoftirqd/019:55:190
24132993833,3cyclictest9-21ksoftirqd/021:45:020
24132993833,3cyclictest9-21ksoftirqd/019:20:000
2413599376,4cyclictest41-21ksoftirqd/320:00:163
2413599376,4cyclictest41-21ksoftirqd/320:00:163
2413599375,3cyclictest41-21ksoftirqd/321:05:233
24135993733,2cyclictest41-21ksoftirqd/320:25:013
24135993731,3cyclictest41-21ksoftirqd/321:10:283
24135993730,4cyclictest41-21ksoftirqd/319:38:143
2413599372,3cyclictest41-21ksoftirqd/319:40:163
24134993731,4cyclictest33-21ksoftirqd/219:39:172
2413299378,4cyclictest9-21ksoftirqd/023:00:180
2413299376,3cyclictest9-21ksoftirqd/021:05:130
24132993733,2cyclictest9-21ksoftirqd/021:30:000
24132993732,2cyclictest9-21ksoftirqd/020:35:000
24132993731,3cyclictest9-21ksoftirqd/023:35:190
24132993731,3cyclictest9-21ksoftirqd/000:00:140
2413599369,7cyclictest41-21ksoftirqd/321:45:013
2413599366,4cyclictest41-21ksoftirqd/300:37:263
2413599366,3cyclictest41-21ksoftirqd/323:57:393
2413599361,5cyclictest41-21ksoftirqd/320:59:363
2413599360,5cyclictest41-21ksoftirqd/321:31:333
24134993631,3cyclictest18852-21cron00:25:012
24134993629,5cyclictest33-21ksoftirqd/200:31:262
24134993629,4cyclictest33-21ksoftirqd/220:06:212
24133993631,3cyclictest1303-21runrttasks23:14:211
24133993630,4cyclictest25-21ksoftirqd/123:38:371
24133993630,4cyclictest25-21ksoftirqd/121:07:251
2413299364,3cyclictest121rcu_preempt00:30:220
2413299363,5cyclictest9-21ksoftirqd/023:15:210
24132993632,2cyclictest9-21ksoftirqd/023:00:000
24132993631,2cyclictest9-21ksoftirqd/019:44:590
24132993630,3cyclictest9-21ksoftirqd/023:40:280
2413299362,6cyclictest9-21ksoftirqd/020:55:240
50798350,2rtkit-daemon0-21swapper/121:47:311
24135993531,2cyclictest41-21ksoftirqd/323:10:283
24135993531,2cyclictest41-21ksoftirqd/322:50:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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