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2026-07-28 - 10:56
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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 Tue Jul 28, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308362205190,11sleep10-21swapper/119:09:281
305702203186,12sleep00-21swapper/019:06:020
306922194178,11sleep30-21swapper/319:07:383
30572211093,12sleep20-21swapper/219:06:042
36112460,0sleep10-21swapper/121:45:411
273502450,0sleep10-21swapper/122:14:071
18712420,0sleep10-21swapper/122:33:291
201932380,0sleep10-21swapper/122:42:211
171982160,1sleep217200-21cpuspeed20:50:122
202212100,0sleep10-21swapper/122:26:001
186622100,0sleep20-21swapper/221:53:462
17296290,0sleep10-21swapper/123:13:081
10098290,0sleep10-21swapper/120:35:141
310759981,6cyclictest0-21swapper/319:50:113
310629981,4cyclictest23518-21munin-run00:05:000
310629981,3cyclictest11811-21munin-run20:40:000
310629960,3cyclictest4388-21perf21:15:010
310629960,3cyclictest18655-21munin-run22:10:000
310629960,1cyclictest11379-21chrt22:38:080
25582260,0sleep10-21swapper/121:40:281
310759955,0cyclictest1241-21kworker/3:220:37:233
310759955,0cyclictest0-21swapper/321:49:103
310759950,5cyclictest0-21swapper/323:37:343
310709955,0cyclictest0-21swapper/200:22:422
310709952,3cyclictest27283-21ssh22:45:302
310709951,2cyclictest0-21swapper/222:35:132
310709950,5cyclictest0-21swapper/223:09:052
310709950,5cyclictest0-21swapper/223:00:032
310709950,5cyclictest0-21swapper/221:38:082
310709950,5cyclictest0-21swapper/200:36:402
310709950,0cyclictest0-21swapper/222:03:012
310669955,0cyclictest0-21swapper/121:34:551
310669951,2cyclictest0-21swapper/121:05:141
310669951,2cyclictest0-21swapper/120:45:131
310669950,5cyclictest0-21swapper/123:28:161
310629955,0cyclictest0-21swapper/022:25:460
310629953,1cyclictest28057-21munin-run23:35:000
310629950,5cyclictest9270-21taskset00:13:560
310629950,5cyclictest18170-21sed23:45:210
310629950,5cyclictest0-21swapper/022:51:400
310629950,5cyclictest0-21swapper/021:45:190
310629950,5cyclictest0-21swapper/021:44:010
310629950,5cyclictest0-21swapper/000:09:310
18514250,4sleep30-21swapper/323:30:133
310759944,0cyclictest0-21swapper/323:47:193
310759943,1cyclictest1486-21unixbench_singl20:15:213
310759942,1cyclictest9294-21ssh23:40:593
310759942,1cyclictest27207-21ssh23:18:043
310759940,4cyclictest2162-21apt-get19:15:013
310759940,4cyclictest10880-21ntp_states19:30:183
310759940,4cyclictest0-21swapper/323:58:223
310759940,4cyclictest0-21swapper/323:00:203
310759940,4cyclictest0-21swapper/322:32:073
310759940,4cyclictest0-21swapper/320:00:123
310759940,4cyclictest0-21swapper/319:25:133
310759940,4cyclictest0-21swapper/319:10:423
310759940,4cyclictest0-21swapper/300:18:223
310759940,4cyclictest0-21swapper/300:10:123
310759940,4cyclictest0-21swapper/300:00:443
310759940,3cyclictest8684-21cat00:30:003
310759940,3cyclictest4632-21sh22:50:213
310759940,3cyclictest31349-21/usr/sbin/munin22:00:193
310759940,3cyclictest31100-21/usr/sbin/munin20:10:203
310759940,3cyclictest29002-21sshd00:23:463
310759940,3cyclictest2473-21cut21:30:013
310759940,3cyclictest24184-21latency_hist21:05:013
310759940,3cyclictest23024-21sed19:55:163
310759940,3cyclictest17520-21sh22:09:193
310759940,3cyclictest16870-21cut20:50:003
310759940,3cyclictest16503-21sh23:12:383
310759940,3cyclictest15767-21tune2fs21:20:143
310759940,3cyclictest14539-21ssh23:27:503
310759940,3cyclictest11067-21apt21:50:123
310759940,1cyclictest7698-21tune2fs22:20:133
310759940,1cyclictest4868-21/usr/sbin/munin22:35:203
310759940,1cyclictest4622-21/usr/sbin/munin20:25:143
310759940,1cyclictest30144-21grep22:15:153
310759940,1cyclictest25849-21hddtemp_smartct22:45:153
310759940,1cyclictest16986-21/usr/sbin/munin20:50:183
310759940,1cyclictest12655-21/usr/sbin/munin22:55:143
310759940,0cyclictest0-21swapper/321:42:373
310759940,0cyclictest0-21swapper/321:32:433
310709944,0cyclictest0-21swapper/223:50:332
310709944,0cyclictest0-21swapper/221:26:562
310709944,0cyclictest0-21swapper/200:15:252
310709943,1cyclictest5828-21unixbench_singl23:55:222
310709942,1cyclictest16763-21ssh23:45:142
310709941,3cyclictest23264-21/usr/sbin/munin21:40:112
310709941,3cyclictest0-21swapper/220:00:132
310709941,2cyclictest0-21swapper/222:55:132
310709941,2cyclictest0-21swapper/222:15:132
310709941,2cyclictest0-21swapper/220:10:132
310709940,4cyclictest19156-21apt-get22:10:112
310709940,4cyclictest10268-21memory22:05:172
310709940,4cyclictest0-21swapper/223:41:052
310709940,4cyclictest0-21swapper/223:31:082
310709940,4cyclictest0-21swapper/223:20:112
310709940,4cyclictest0-21swapper/223:15:542
310709940,4cyclictest0-21swapper/222:50:122
310709940,4cyclictest0-21swapper/221:55:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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