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2026-03-26 - 20:27
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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 rack5slot2.osadl.org (updated Thu Mar 26, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89652201185,10sleep10-21swapper/107:09:561
86252187170,12sleep30-21swapper/307:05:343
88262180163,12sleep00-21swapper/007:08:110
8956211396,12sleep20-21swapper/207:09:492
71752460,0sleep00-21swapper/009:57:450
76892410,0sleep10-21swapper/111:33:181
177012400,0sleep10-21swapper/110:02:541
213332130,0sleep10-21swapper/111:55:201
307422100,0sleep10-21swapper/112:00:161
10397280,0sleep10-21swapper/109:43:451
91589971,3cyclictest10471-21munin-run11:35:000
91589970,3cyclictest17666-21perf10:35:000
91589963,3cyclictest12024-21sort10:00:130
91589962,4cyclictest22819-21basename09:50:010
91589962,4cyclictest22819-21basename09:50:010
91749955,0cyclictest0-21swapper/311:53:313
91749954,1cyclictest40-21ksoftirqd/312:15:003
91749954,1cyclictest0-21swapper/310:30:013
91749950,5cyclictest0-21swapper/311:09:523
91749950,5cyclictest0-21swapper/310:42:223
91749950,5cyclictest0-21swapper/307:34:573
91749950,4cyclictest19956-21apt-get10:20:113
91749950,4cyclictest0-21swapper/308:40:023
91749950,0cyclictest0-21swapper/311:43:373
91749950,0cyclictest0-21swapper/309:25:413
91709950,5cyclictest0-21swapper/211:45:512
91709950,4cyclictest16442-21irqstats12:25:162
91709950,0cyclictest0-21swapper/210:21:022
91629950,5cyclictest0-21swapper/111:43:051
91589955,0cyclictest0-21swapper/012:19:180
91589952,3cyclictest16345-21python09:30:210
91589952,3cyclictest16178-21ssh11:37:160
91589950,5cyclictest27469-21sh08:50:000
91589950,5cyclictest0-21swapper/011:00:160
91589950,5cyclictest0-21swapper/010:06:130
91589950,0cyclictest13305-21ssh11:20:120
91589950,0cyclictest0-21swapper/011:57:460
91589950,0cyclictest0-21swapper/011:27:210
3648250,1sleep33644-21apt-config09:25:013
91749944,0cyclictest1435-21kworker/3:212:22:393
91749944,0cyclictest1435-21kworker/3:209:45:563
91749944,0cyclictest1435-21kworker/3:209:45:563
91749944,0cyclictest1435-21kworker/3:208:27:353
91749944,0cyclictest0-21swapper/311:15:503
91749944,0cyclictest0-21swapper/308:49:353
91749944,0cyclictest0-21swapper/308:39:593
91749942,1cyclictest814-21snmpd12:05:213
91749942,1cyclictest27984-21ssh11:11:013
91749941,3cyclictest0-21swapper/311:45:033
91749941,2cyclictest0-21swapper/307:55:103
91749941,1cyclictest0-21swapper/310:10:113
91749940,4cyclictest61-21kswapd011:30:013
91749940,4cyclictest4955-21diskmemload12:36:073
91749940,4cyclictest4955-21diskmemload09:12:383
91749940,4cyclictest21658-21apt-get10:05:113
91749940,4cyclictest20614-21ssh12:27:193
91749940,4cyclictest0-21swapper/312:19:153
91749940,4cyclictest0-21swapper/311:21:273
91749940,4cyclictest0-21swapper/310:57:533
91749940,4cyclictest0-21swapper/310:52:533
91749940,4cyclictest0-21swapper/310:00:513
91749940,4cyclictest0-21swapper/309:53:333
91749940,4cyclictest0-21swapper/309:35:113
91749940,4cyclictest0-21swapper/309:30:133
91749940,4cyclictest0-21swapper/308:02:443
91749940,4cyclictest0-21swapper/307:53:523
91749940,3cyclictest8563-21diskstats10:30:143
91749940,3cyclictest7471-21munin-run08:10:003
91749940,3cyclictest29933-21df12:00:133
91749940,3cyclictest28425-21ssh11:27:283
91749940,3cyclictest28031-21cat10:40:003
91749940,3cyclictest26886-21ntp_states12:30:183
91749940,3cyclictest21359-21ssh09:17:253
91749940,3cyclictest20057-21cut07:30:003
91749940,3cyclictest17607-21apt08:30:113
91749940,3cyclictest10135-21ssh11:02:353
91749940,3cyclictest0-21swapper/309:00:103
91749940,1cyclictest3968-21memory09:40:183
91709944,0cyclictest0-21swapper/212:24:162
91709944,0cyclictest0-21swapper/210:06:212
91709944,0cyclictest0-21swapper/209:34:022
91709942,2cyclictest814-21snmpd12:02:572
91709942,2cyclictest0-21swapper/209:22:172
91709942,1cyclictest57250irq/130-eth012:35:102
91709941,3cyclictest3803-21cat09:40:172
91709941,2cyclictest0-21swapper/209:00:102
91709940,4cyclictest32392-21ssh10:57:372
91709940,4cyclictest27712-21ssh09:51:462
91709940,4cyclictest2552-21apt-get11:15:112
91709940,4cyclictest25231-21/usr/sbin/munin08:45:142
91709940,4cyclictest11828-21ssh10:47:332
91709940,4cyclictest11451-21python10:15:192
91709940,4cyclictest0-21swapper/212:30:122
91709940,4cyclictest0-21swapper/212:18:142
91709940,4cyclictest0-21swapper/211:11:572
91709940,4cyclictest0-21swapper/208:50:252
91709940,4cyclictest0-21swapper/208:40:112
91709940,4cyclictest0-21swapper/208:35:112
91709940,4cyclictest0-21swapper/208:20:122
91709940,4cyclictest0-21swapper/208:15:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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