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2026-04-09 - 02:00
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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 Apr 09, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19812204188,12sleep10-21swapper/119:05:511
325042199183,12sleep00-21swapper/019:05:010
325122186169,12sleep30-21swapper/319:05:093
23022169152,13sleep20-21swapper/219:09:582
104082490,0sleep10-21swapper/123:37:381
110692430,0sleep10-21swapper/122:03:031
119992410,0sleep20-21swapper/200:25:392
205362370,1sleep1211ktimersoftd/123:10:311
248912110,0sleep30-21swapper/323:45:083
79952100,0sleep20-21swapper/200:24:352
247799102,4cyclictest7011-21munin-run21:30:000
181272100,0sleep10-21swapper/121:19:461
8848280,0sleep08849-21aten2_r5power_p21:15:140
24779982,3cyclictest29135-21munin-run00:35:000
24779970,3cyclictest17287-21awk21:35:000
24779960,3cyclictest27873-21perf23:15:000
24779960,3cyclictest13047-21perf19:30:000
7163250,0sleep27165-21latency_hist21:30:012
24879950,5cyclictest0-21swapper/323:09:073
24879950,5cyclictest0-21swapper/322:12:403
24879950,5cyclictest0-21swapper/322:01:353
24879950,5cyclictest0-21swapper/300:28:163
24879950,4cyclictest23522-21ssh22:25:133
24879950,4cyclictest22637-21hddtemp_smartct22:40:143
24879950,1cyclictest28965-21fschecks_count21:40:143
24879950,1cyclictest0-21swapper/323:41:593
24879950,0cyclictest0-21swapper/323:33:083
24829951,2cyclictest0-21swapper/219:50:102
24829951,2cyclictest0-21swapper/200:10:112
24829950,5cyclictest0-21swapper/223:46:112
24829950,5cyclictest0-21swapper/222:27:112
24829950,5cyclictest0-21swapper/221:51:232
24829950,5cyclictest0-21swapper/221:31:362
24829950,4cyclictest12466-21hddtemp_smartct22:35:142
24829950,4cyclictest0-21swapper/222:20:112
24829950,0cyclictest0-21swapper/200:06:592
24789951,2cyclictest0-21swapper/120:15:111
24789950,5cyclictest0-21swapper/123:29:131
24779955,0cyclictest0-21swapper/023:45:490
24779954,1cyclictest9556-21ntpq19:20:160
24779950,5cyclictest0-21swapper/022:18:060
24779950,5cyclictest0-21swapper/000:25:420
24779950,5cyclictest0-21swapper/000:04:190
24779950,5cyclictest0-21swapper/000:04:190
24779950,0cyclictest30318-21diskmemload21:11:190
24779950,0cyclictest0-21swapper/022:14:100
28757240,0sleep30-21swapper/321:24:503
24879944,0cyclictest5034-21kworker/3:020:28:583
24879944,0cyclictest0-21swapper/322:55:253
24879944,0cyclictest0-21swapper/322:07:073
24879944,0cyclictest0-21swapper/321:48:393
24879944,0cyclictest0-21swapper/300:37:433
24879944,0cyclictest0-21swapper/300:14:003
24879943,1cyclictest20684-21/usr/sbin/munin19:45:123
24879941,3cyclictest0-21swapper/300:15:103
24879940,4cyclictest0-21swapper/323:56:513
24879940,4cyclictest0-21swapper/323:35:453
24879940,4cyclictest0-21swapper/323:25:013
24879940,4cyclictest0-21swapper/323:18:373
24879940,4cyclictest0-21swapper/322:35:123
24879940,4cyclictest0-21swapper/322:24:553
24879940,4cyclictest0-21swapper/321:10:393
24879940,4cyclictest0-21swapper/321:05:103
24879940,4cyclictest0-21swapper/320:55:123
24879940,4cyclictest0-21swapper/320:45:093
24879940,4cyclictest0-21swapper/320:00:113
24879940,4cyclictest0-21swapper/319:25:113
24879940,4cyclictest0-21swapper/300:05:003
24879940,3cyclictest5598-21grep19:15:013
24879940,3cyclictest4193-21cat22:00:003
24879940,3cyclictest23083-21sed20:55:013
24879940,3cyclictest23083-21sed20:55:013
24879940,3cyclictest2268-21ssh23:01:513
24879940,3cyclictest20060-21users19:40:203
24879940,3cyclictest17835-21sh21:35:053
24879940,3cyclictest16024-21df_inode20:40:123
24879940,3cyclictest1525-21cpuspeed22:30:133
24879940,3cyclictest10103-21/usr/sbin/munin21:15:193
24879940,3cyclictest0-21swapper/321:00:103
24879940,3cyclictest0-21swapper/320:35:113
24879940,1cyclictest7879-21ssh23:20:193
24879940,1cyclictest20941-21ntp_states00:30:183
24879940,1cyclictest19043-21sh23:10:143
24879940,1cyclictest16457-21/usr/sbin/munin21:50:203
24879940,1cyclictest10878-21memory22:50:153
24829944,0cyclictest31-21ksoftirqd/219:15:012
24829944,0cyclictest0-21swapper/223:32:292
24829944,0cyclictest0-21swapper/223:02:572
24829944,0cyclictest0-21swapper/200:30:422
24829943,1cyclictest9016-21grep19:20:142
24829942,1cyclictest205-21systemd-journal22:55:002
24829942,1cyclictest18682-21ssh23:57:312
24829942,1cyclictest15349-21df22:05:112
24829942,1cyclictest0-21swapper/220:00:102
24829941,2cyclictest0-21swapper/221:55:122
24829941,1cyclictest0-21swapper/221:05:102
24829941,1cyclictest0-21swapper/220:20:112
24829940,4cyclictest0-21swapper/223:35:062
24829940,4cyclictest0-21swapper/223:25:102
24829940,4cyclictest0-21swapper/221:45:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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