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2026-06-15 - 20:03
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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 Jun 15, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/319:09:223
243022201166,23sleep00-21swapper/019:06:340
242462200167,22sleep10-21swapper/119:05:511
242822199167,21sleep20-21swapper/219:06:202
142721620,6sleep12486599cyclictest23:45:241
285012650,6sleep32486799cyclictest22:30:213
138491600,1ptp4l401ktimersoftd/320:50:233
288842560,2sleep00-21swapper/019:15:250
138491560,1ptp4l401ktimersoftd/322:05:163
138491560,1ptp4l401ktimersoftd/319:54:293
138491550,1ptp4l401ktimersoftd/319:15:253
289922540,2sleep10-21swapper/119:15:261
317312530,6sleep341-21ksoftirqd/320:27:093
263922510,2sleep00-21swapper/019:10:240
138491470,1ptp4l401ktimersoftd/322:55:243
24866994539,3cyclictest33-21ksoftirqd/220:10:002
2486699431,11cyclictest0-21swapper/220:05:002
138491430,0ptp4l401ktimersoftd/323:24:123
138491430,0ptp4l401ktimersoftd/321:25:133
138491420,0ptp4l401ktimersoftd/300:15:313
24867994127,4cyclictest41-21ksoftirqd/321:45:003
134991410,2getstats0-21swapper/300:38:133
50798390,4rtkit-daemon3531-21phc2sys21:40:231
24866993934,3cyclictest33-21ksoftirqd/219:50:002
2486599390,38cyclictest0-21swapper/119:40:431
24866993834,2cyclictest33-21ksoftirqd/221:35:002
24866993833,3cyclictest33-21ksoftirqd/222:05:002
24866993833,3cyclictest33-21ksoftirqd/222:00:012
24866993833,3cyclictest33-21ksoftirqd/220:25:232
24866993833,2cyclictest33-21ksoftirqd/200:20:202
24866993832,4cyclictest33-21ksoftirqd/219:20:002
24866993832,3cyclictest33-21ksoftirqd/223:00:172
24866993832,3cyclictest33-21ksoftirqd/222:45:002
24866993832,3cyclictest33-21ksoftirqd/222:20:002
24864993814,21cyclictest25876-21irqstats00:35:190
24867993731,4cyclictest41-21ksoftirqd/323:48:233
24867993731,4cyclictest41-21ksoftirqd/322:17:173
24867993731,3cyclictest41-21ksoftirqd/320:15:143
24867993730,4cyclictest41-21ksoftirqd/323:05:113
24866993733,2cyclictest33-21ksoftirqd/221:05:192
24866993732,3cyclictest33-21ksoftirqd/221:55:012
24866993732,3cyclictest32185-21cat23:45:002
24866993731,3cyclictest33-21ksoftirqd/223:30:102
24866993731,3cyclictest33-21ksoftirqd/221:45:592
24866993730,5cyclictest33-21ksoftirqd/223:47:022
50798360,2rtkit-daemon0-21swapper/022:19:180
24867993631,3cyclictest41-21ksoftirqd/300:10:133
24867993630,4cyclictest41-21ksoftirqd/323:42:343
24867993630,4cyclictest41-21ksoftirqd/323:17:213
24867993630,4cyclictest41-21ksoftirqd/323:17:213
24867993630,3cyclictest41-21ksoftirqd/320:10:173
24866993631,3cyclictest33-21ksoftirqd/223:25:182
24866993631,3cyclictest33-21ksoftirqd/223:00:002
24866993631,3cyclictest33-21ksoftirqd/221:40:002
24866993631,3cyclictest33-21ksoftirqd/220:55:002
24866993631,3cyclictest33-21ksoftirqd/220:20:142
24866993631,3cyclictest33-21ksoftirqd/200:00:132
24866993630,3cyclictest33-21ksoftirqd/222:14:592
24866993629,5cyclictest33-21ksoftirqd/220:10:252
24866993629,4cyclictest33-21ksoftirqd/220:55:142
24866993629,4cyclictest33-21ksoftirqd/220:40:112
24866993629,4cyclictest33-21ksoftirqd/219:50:532
24865993630,4cyclictest25-21ksoftirqd/123:31:001
24865993630,4cyclictest25-21ksoftirqd/123:06:331
24865993630,4cyclictest25-21ksoftirqd/122:29:211
24865993630,4cyclictest25-21ksoftirqd/122:22:081
24865993630,4cyclictest25-21ksoftirqd/121:50:111
24864993630,4cyclictest9-21ksoftirqd/000:17:050
24864993612,3cyclictest23081-21awk00:30:160
24867993530,3cyclictest41-21ksoftirqd/323:00:103
24867993530,3cyclictest41-21ksoftirqd/322:04:323
24867993529,4cyclictest41-21ksoftirqd/322:10:143
24867993529,3cyclictest41-21ksoftirqd/321:15:003
24867993528,5cyclictest41-21ksoftirqd/321:56:033
24866993531,3cyclictest33-21ksoftirqd/223:15:532
24866993531,3cyclictest33-21ksoftirqd/223:15:532
24866993531,3cyclictest33-21ksoftirqd/221:25:332
24866993531,3cyclictest33-21ksoftirqd/200:10:152
24866993531,2cyclictest33-21ksoftirqd/223:55:012
24866993530,3cyclictest33-21ksoftirqd/223:55:182
24866993530,3cyclictest33-21ksoftirqd/223:10:262
24866993530,3cyclictest33-21ksoftirqd/200:26:172
24866993529,4cyclictest33-21ksoftirqd/223:35:102
24866993529,4cyclictest33-21ksoftirqd/223:07:382
24866993528,4cyclictest33-21ksoftirqd/223:20:062
2486699352,3cyclictest33-21ksoftirqd/200:30:192
24865993530,3cyclictest25-21ksoftirqd/120:53:141
24865993529,4cyclictest25-21ksoftirqd/121:10:551
24865993529,4cyclictest25-21ksoftirqd/121:04:011
24865993529,4cyclictest25-21ksoftirqd/120:36:091
2486499353,3cyclictest121rcu_preempt23:05:170
24864993529,4cyclictest9-21ksoftirqd/023:46:120
24864993529,4cyclictest9-21ksoftirqd/020:57:420
24864993529,4cyclictest9-21ksoftirqd/020:00:100
24864993528,5cyclictest9-21ksoftirqd/020:49:440
24864993528,4cyclictest9-21ksoftirqd/021:58:080
24864993527,5cyclictest9-21ksoftirqd/000:30:010
24864993514,3cyclictest7500-21/usr/sbin/munin22:55:120
24864993514,3cyclictest29822-21df21:30:140
24864993513,3cyclictest2890-21df23:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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