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2026-07-06 - 05:50
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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 Mon Jul 06, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591207174,22phc2sys0-21swapper/319:07:113
233312204169,23sleep10-21swapper/119:09:181
231292202168,22sleep00-21swapper/019:06:400
230942200167,22sleep20-21swapper/219:06:142
2298521390,7sleep02367799cyclictest22:20:230
2710721380,8sleep32368099cyclictest20:20:203
2710721380,8sleep32368099cyclictest20:20:203
2367799670,21cyclictest25907-21sed20:20:000
2367799630,22cyclictest13333-21http21:00:000
2367799610,18cyclictest31772-21df_abs19:25:130
218862540,3sleep3391rcuc/300:30:133
2367799530,21cyclictest8823-21cat19:45:000
158632520,1sleep00-21swapper/000:15:250
138491520,0ptp4l401ktimersoftd/323:04:543
2367799500,18cyclictest8847-21/usr/sbin/munin19:45:180
23679994527,15cyclictest33-21ksoftirqd/223:07:502
2367799451,20cyclictest20246-21awk22:15:210
138491440,0ptp4l401ktimersoftd/319:50:053
23680994337,3cyclictest41-21ksoftirqd/300:40:003
23679994330,10cyclictest20467-21mailstats22:15:232
138491430,0ptp4l401ktimersoftd/320:26:273
23679994231,9cyclictest33-21ksoftirqd/200:15:202
23678994237,3cyclictest6333-21idleruntime-cro00:00:001
23678994237,3cyclictest25-21ksoftirqd/121:59:591
138491420,0ptp4l401ktimersoftd/321:53:003
138491420,0ptp4l401ktimersoftd/321:30:383
138491420,0ptp4l401ktimersoftd/319:29:193
138491420,0ptp4l401ktimersoftd/319:24:573
138491410,0ptp4l401ktimersoftd/323:59:543
138491410,0ptp4l401ktimersoftd/322:06:373
23680994036,2cyclictest41-21ksoftirqd/319:45:003
23680994034,3cyclictest41-21ksoftirqd/300:05:003
23678994035,3cyclictest25-21ksoftirqd/122:39:591
23678994035,3cyclictest25-21ksoftirqd/100:10:011
138491400,0ptp4l401ktimersoftd/323:06:173
138491400,0ptp4l401ktimersoftd/320:15:233
23680993933,3cyclictest41-21ksoftirqd/319:10:133
23679993933,4cyclictest33-21ksoftirqd/222:34:272
2367999390,37cyclictest25855-21cat20:20:002
23678993934,3cyclictest25-21ksoftirqd/123:45:001
23678993934,3cyclictest25-21ksoftirqd/123:30:191
23678993934,3cyclictest25-21ksoftirqd/123:00:011
23678993934,3cyclictest25-21ksoftirqd/122:50:001
138491390,0ptp4l401ktimersoftd/322:57:273
138491390,0ptp4l401ktimersoftd/321:00:333
23680993833,3cyclictest41-21ksoftirqd/320:09:123
2367999389,27cyclictest0-21swapper/222:00:232
23679993834,3cyclictest33-21ksoftirqd/200:05:012
2367999380,36cyclictest0-21swapper/223:40:322
23678993834,2cyclictest25-21ksoftirqd/121:40:001
23678993833,3cyclictest25-21ksoftirqd/123:25:011
23678993833,3cyclictest25-21ksoftirqd/119:15:001
138491380,0ptp4l401ktimersoftd/300:13:053
23680993732,3cyclictest41-21ksoftirqd/320:45:003
23680993731,4cyclictest41-21ksoftirqd/322:02:583
23680993731,4cyclictest41-21ksoftirqd/320:36:053
23679993732,3cyclictest33-21ksoftirqd/222:20:102
23679993732,3cyclictest21362-21cron23:25:012
23679993730,5cyclictest33-21ksoftirqd/219:51:122
23678993733,3cyclictest25-21ksoftirqd/121:20:001
23678993733,2cyclictest25-21ksoftirqd/120:00:001
23678993732,3cyclictest25-21ksoftirqd/120:05:011
23678993730,5cyclictest25-21ksoftirqd/119:23:151
23677993731,4cyclictest9-21ksoftirqd/019:55:010
23680993632,3cyclictest41-21ksoftirqd/322:15:003
23680993632,2cyclictest41-21ksoftirqd/321:49:593
23680993632,2cyclictest41-21ksoftirqd/321:00:003
23680993631,3cyclictest41-21ksoftirqd/322:20:013
23680993631,3cyclictest41-21ksoftirqd/321:10:013
23680993631,2cyclictest41-21ksoftirqd/322:45:003
23680993630,4cyclictest41-21ksoftirqd/323:26:073
23680993630,3cyclictest41-21ksoftirqd/323:20:153
23680993630,3cyclictest41-21ksoftirqd/321:10:133
23680993630,3cyclictest41-21ksoftirqd/319:40:003
23680993629,5cyclictest41-21ksoftirqd/323:36:103
23679993631,3cyclictest33-21ksoftirqd/221:35:112
23679993630,4cyclictest33-21ksoftirqd/223:52:582
23679993630,4cyclictest33-21ksoftirqd/223:13:022
23679993630,4cyclictest33-21ksoftirqd/222:26:202
23679993630,4cyclictest33-21ksoftirqd/222:06:182
23679993630,4cyclictest33-21ksoftirqd/200:08:302
23679993628,5cyclictest33-21ksoftirqd/220:05:002
23678993632,3cyclictest25-21ksoftirqd/119:20:021
23678993632,2cyclictest25-21ksoftirqd/122:20:011
23678993632,2cyclictest25-21ksoftirqd/120:35:191
23678993631,3cyclictest25-21ksoftirqd/123:00:181
23678993630,4cyclictest25-21ksoftirqd/119:51:141
23678993630,4cyclictest25-21ksoftirqd/100:31:001
23677993631,3cyclictest9-21ksoftirqd/020:20:120
23677993631,3cyclictest9-21ksoftirqd/020:20:120
23680993531,3cyclictest41-21ksoftirqd/323:19:183
23680993531,2cyclictest41-21ksoftirqd/321:15:213
23680993530,3cyclictest41-21ksoftirqd/322:30:133
23680993530,3cyclictest41-21ksoftirqd/321:20:263
23680993530,3cyclictest41-21ksoftirqd/300:25:263
23680993529,4cyclictest41-21ksoftirqd/323:42:363
23680993529,4cyclictest41-21ksoftirqd/300:23:563
23680993529,3cyclictest41-21ksoftirqd/320:45:183
23680993528,5cyclictest41-21ksoftirqd/323:11:453
2367999357,27cyclictest0-21swapper/221:05:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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