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2026-06-24 - 05:55
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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 24, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187562195180,11sleep00-21swapper/019:06:180
188122193168,8sleep30-21swapper/319:07:023
188872183167,11sleep10-21swapper/119:07:591
189912117100,12sleep20-21swapper/219:09:212
327492460,0sleep30-21swapper/323:56:453
171112430,0sleep10-21swapper/123:17:171
315182420,0sleep10-21swapper/122:20:241
55852400,0sleep10-21swapper/100:15:181
135912350,0sleep21921999cyclictest23:31:182
222502130,1sleep1211ktimersoftd/100:07:401
192139970,4cyclictest25992-21munin-run00:10:000
192149961,2cyclictest0-21swapper/123:00:111
13971260,0sleep10-21swapper/121:56:141
8094250,0sleep20-21swapper/221:37:542
24541250,0sleep20-21swapper/223:52:562
192239952,3cyclictest0-21swapper/322:42:363
192239950,5cyclictest0-21swapper/323:43:133
192239950,5cyclictest0-21swapper/322:21:443
192239950,5cyclictest0-21swapper/321:31:323
192239950,5cyclictest0-21swapper/320:10:203
192239950,4cyclictest0-21swapper/320:55:133
192239950,4cyclictest0-21swapper/319:50:103
192199950,5cyclictest0-21swapper/222:16:462
192199950,5cyclictest0-21swapper/219:10:032
192199950,5cyclictest0-21swapper/200:21:532
192199950,5cyclictest0-21swapper/200:11:252
192199950,4cyclictest25651-21apt-get22:50:122
192199950,2cyclictest61-21kswapd023:45:122
192199950,0cyclictest0-21swapper/200:26:502
192149952,2cyclictest0-21swapper/120:30:131
192149951,2cyclictest0-21swapper/122:10:101
192149951,2cyclictest0-21swapper/121:10:141
192149951,2cyclictest0-21swapper/100:25:111
192149950,5cyclictest0-21swapper/123:10:271
192149950,5cyclictest0-21swapper/121:46:381
192149950,5cyclictest0-21swapper/119:25:211
192139951,4cyclictest19838-21perf20:15:010
192139950,5cyclictest0-21swapper/023:36:090
192139950,5cyclictest0-21swapper/022:56:000
192139950,5cyclictest0-21swapper/022:39:590
192139950,4cyclictest17527-21munin-run23:50:000
192139950,1cyclictest9435-21munin-run23:30:010
192139950,1cyclictest8214-21dump-pmu-power22:10:010
192139950,0cyclictest14828-21diskmemload23:56:320
192139950,0cyclictest0-21swapper/021:27:400
192139950,0cyclictest0-21swapper/000:39:090
3793240,0sleep20-21swapper/222:07:202
192239944,0cyclictest316-21kworker/3:223:15:113
192239944,0cyclictest316-21kworker/3:220:04:513
192239944,0cyclictest316-21kworker/3:219:31:163
192239944,0cyclictest316-21kworker/3:219:20:053
192239944,0cyclictest19030-21kworker/3:100:33:343
192239944,0cyclictest0-21swapper/322:16:123
192239944,0cyclictest0-21swapper/321:55:593
192239944,0cyclictest0-21swapper/321:40:433
192239943,1cyclictest29947-21/usr/sbin/munin20:35:203
192239943,1cyclictest1895-21/usr/sbin/munin21:35:243
192239942,2cyclictest0-21swapper/300:15:203
192239941,3cyclictest802-21snmpd00:38:263
192239941,3cyclictest21033-21cat23:35:133
192239941,3cyclictest0-21swapper/321:25:083
192239940,4cyclictest4963-21apt-get20:50:123
192239940,4cyclictest24494-21uptime21:45:213
192239940,4cyclictest1228-21ssh22:54:003
192239940,4cyclictest0-21swapper/323:31:363
192239940,4cyclictest0-21swapper/322:35:053
192239940,4cyclictest0-21swapper/322:06:303
192239940,4cyclictest0-21swapper/320:45:213
192239940,4cyclictest0-21swapper/320:15:093
192239940,4cyclictest0-21swapper/319:55:103
192239940,4cyclictest0-21swapper/319:45:003
192239940,4cyclictest0-21swapper/300:08:233
192239940,4cyclictest0-21swapper/300:00:103
192239940,3cyclictest6599-21ssh21:20:583
192239940,3cyclictest4773-21latency_hist19:45:013
192239940,3cyclictest3372-21gunzip23:10:213
192239940,3cyclictest28476-21sh23:06:503
192239940,3cyclictest27484-21apt-get20:30:123
192239940,3cyclictest26325-21sh00:10:043
192239940,3cyclictest26005-21/usr/sbin/munin20:25:143
192239940,3cyclictest25563-21sh21:15:113
192239940,3cyclictest24983-21sh22:49:553
192239940,3cyclictest2468-21cut19:40:003
192239940,3cyclictest2416-21cat20:45:013
192239940,3cyclictest22092-21grep22:00:183
192239940,3cyclictest19347-21aten2_r5power_c19:10:123
192239940,3cyclictest16938-21sh23:01:073
192239940,3cyclictest16786-21/usr/sbin/munin21:10:213
192239940,3cyclictest10750-21sh22:26:173
192239940,3cyclictest0-21swapper/323:27:153
192239940,3cyclictest0-21swapper/300:20:003
192239940,2cyclictest28638-21taskset00:26:423
192239940,2cyclictest0-21swapper/322:13:093
192239940,1cyclictest7930-21/usr/sbin/munin23:45:203
192239940,1cyclictest32625-21/usr/sbin/munin21:50:153
192239940,1cyclictest32625-21/usr/sbin/munin21:50:153
192239940,1cyclictest27899-21sed23:55:003
192239940,1cyclictest22070-21/usr/sbin/munin23:20:203
192199944,0cyclictest0-21swapper/223:43:032
192199943,1cyclictest0-21swapper/221:59:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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