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2026-06-10 - 14:09
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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 Wed Jun 10, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
273452203187,12sleep10-21swapper/107:05:551
273722185167,13sleep30-21swapper/307:06:183
273492184167,12sleep00-21swapper/007:05:580
27644210790,12sleep20-21swapper/207:09:462
33452460,0sleep20-21swapper/208:28:182
288612460,0sleep00-21swapper/011:19:160
262292450,0sleep20-21swapper/211:33:442
143472440,0sleep20-21swapper/209:20:232
206852120,1sleep041ktimersoftd/011:30:200
236052110,0sleep10-21swapper/109:25:151
2783699102,4cyclictest25544-21cron10:30:000
278369992,3cyclictest8451-21kworker/0:011:10:000
278369981,3cyclictest30600-21ssh09:45:010
278369971,3cyclictest3499-21apt-get08:30:010
278469965,1cyclictest12194-21hddtemp_smartct08:45:143
278469965,1cyclictest12065-21ssh09:51:023
278469960,5cyclictest0-21swapper/308:15:123
278469960,1cyclictest22124-21/usr/sbin/munin08:00:163
278379961,3cyclictest0-21swapper/110:45:121
278369966,0cyclictest3-21ksoftirqd/008:35:010
278369961,5cyclictest27145-21munin-run10:15:000
278369960,3cyclictest4082-21munin-run11:55:000
278369960,3cyclictest10058-21munin-run09:35:010
1410260,0sleep00-21swapper/010:49:580
278469955,0cyclictest18563-21kworker/3:011:53:003
278469955,0cyclictest0-21swapper/312:35:183
278469955,0cyclictest0-21swapper/310:32:373
278469955,0cyclictest0-21swapper/310:05:163
278469951,3cyclictest23506-21diskmemload11:04:213
278469950,5cyclictest21377-21ssh10:43:343
278469950,5cyclictest17874-21ssh09:38:333
278469950,5cyclictest0-21swapper/312:13:113
278469950,5cyclictest0-21swapper/309:57:263
278469950,5cyclictest0-21swapper/309:25:083
278469950,4cyclictest30034-21memory11:35:153
278399954,1cyclictest0-21swapper/211:03:212
278399951,2cyclictest0-21swapper/208:00:112
278399950,5cyclictest0-21swapper/212:13:282
278399950,5cyclictest0-21swapper/209:36:292
278399950,4cyclictest0-21swapper/211:35:112
278379951,3cyclictest0-21swapper/109:15:121
278379951,3cyclictest0-21swapper/109:15:121
278369955,0cyclictest3-21ksoftirqd/010:30:110
278369952,0cyclictest81rcu_preempt09:05:020
278369951,2cyclictest0-21swapper/007:55:110
278369950,5cyclictest0-21swapper/011:35:110
278369950,5cyclictest0-21swapper/010:44:150
278369950,5cyclictest0-21swapper/010:09:280
278369950,4cyclictest22703-21apt-get12:20:090
278369950,4cyclictest22703-21apt-get12:20:090
278369950,4cyclictest1255-21apt-get07:20:110
278369950,0cyclictest0-21swapper/011:24:070
5231240,0sleep10-21swapper/110:51:021
3155240,0sleep20-21swapper/209:46:502
278469944,0cyclictest28708-21ssh09:43:533
278469944,0cyclictest21485-21kworker/3:109:05:053
278469944,0cyclictest21485-21kworker/3:108:53:513
278469944,0cyclictest21485-21kworker/3:108:42:393
278469944,0cyclictest21485-21kworker/3:108:31:283
278469944,0cyclictest21485-21kworker/3:107:57:523
278469944,0cyclictest21485-21kworker/3:107:35:293
278469944,0cyclictest21485-21kworker/3:107:24:173
278469944,0cyclictest18563-21kworker/3:010:57:003
278469943,1cyclictest32686-21apt-get09:30:103
278469942,2cyclictest802-21snmpd09:11:363
278469942,1cyclictest802-21snmpd11:30:063
278469942,1cyclictest18171-21ssh12:01:113
278469942,1cyclictest13596-21ssh09:20:183
278469942,1cyclictest0-21swapper/310:15:093
278469941,3cyclictest802-21snmpd10:00:093
278469941,3cyclictest0-21swapper/308:05:153
278469940,4cyclictest919-21sh11:20:373
278469940,4cyclictest20634-21users09:00:203
278469940,4cyclictest0-21swapper/312:25:093
278469940,4cyclictest0-21swapper/312:23:073
278469940,4cyclictest0-21swapper/312:23:073
278469940,4cyclictest0-21swapper/311:45:133
278469940,4cyclictest0-21swapper/311:44:163
278469940,4cyclictest0-21swapper/311:26:323
278469940,4cyclictest0-21swapper/310:35:113
278469940,4cyclictest0-21swapper/310:27:543
278469940,4cyclictest0-21swapper/310:10:093
278469940,3cyclictest6404-21expr07:30:113
278469940,3cyclictest6012-21ssh10:20:133
278469940,3cyclictest3952-21ssh09:15:203
278469940,3cyclictest3952-21ssh09:15:203
278469940,3cyclictest30882-21ntp_states07:15:003
278469940,3cyclictest20440-21ssh11:15:123
278469940,3cyclictest2010-21sh10:50:113
278469940,3cyclictest13883-21tr07:45:143
278469940,3cyclictest12612-21ssh12:15:103
278469940,3cyclictest12190-21irqstats07:40:153
278469940,3cyclictest11640-21ntpq11:10:153
278469940,3cyclictest0-21swapper/311:55:123
278469940,0cyclictest0-21swapper/310:45:443
278399944,0cyclictest0-21swapper/211:56:362
278399944,0cyclictest0-21swapper/211:51:132
278399944,0cyclictest0-21swapper/211:19:382
278399944,0cyclictest0-21swapper/210:42:052
278399944,0cyclictest0-21swapper/210:08:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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