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2026-05-20 - 04:54
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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 376 highest latencies:
System rack5slot2.osadl.org (updated Wed May 20, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165262198182,11sleep30-21swapper/319:06:013
167562187170,12sleep10-21swapper/119:08:591
165832181165,12sleep00-21swapper/019:06:460
165132166146,15sleep20-21swapper/219:05:512
20852450,0sleep00-21swapper/023:42:210
268102440,0sleep20-21swapper/221:15:432
276182160,0sleep1201rcuc/100:10:321
76282120,0sleep00-21swapper/021:22:290
170389980,6cyclictest0-21swapper/323:15:133
170309971,5cyclictest0-21swapper/221:25:112
170219960,5cyclictest0-21swapper/020:20:110
170389955,0cyclictest31135-21kworker/3:122:16:023
170389950,5cyclictest0-21swapper/323:41:543
170389950,5cyclictest0-21swapper/300:22:473
170389950,0cyclictest1016-21ssh22:06:273
170309955,0cyclictest0-21swapper/222:02:232
170309950,5cyclictest0-21swapper/220:50:112
170259951,2cyclictest0-21swapper/121:50:121
170259950,5cyclictest0-21swapper/122:01:101
170259950,5cyclictest0-21swapper/121:41:131
170219953,1cyclictest5098-21latency_hist22:25:010
170219950,4cyclictest8104-21sendmail21:00:000
170219950,4cyclictest19337-21ssh22:00:120
170219950,0cyclictest0-21swapper/000:09:270
25815240,0sleep10-21swapper/121:31:031
170389944,0cyclictest31135-21kworker/3:120:35:153
170389944,0cyclictest31135-21kworker/3:100:30:233
170389941,2cyclictest0-21swapper/323:00:103
170389941,2cyclictest0-21swapper/322:20:123
170389941,2cyclictest0-21swapper/320:30:123
170389941,1cyclictest537-21nscd21:45:593
170389941,1cyclictest0-21swapper/322:10:113
170389941,1cyclictest0-21swapper/321:35:113
170389941,1cyclictest0-21swapper/320:55:103
170389940,4cyclictest331-21apt-get19:40:113
170389940,4cyclictest17577-21taskset20:14:113
170389940,4cyclictest13072-21diskmemload23:20:123
170389940,4cyclictest12492-21ssh22:28:193
170389940,4cyclictest0-21swapper/323:35:113
170389940,4cyclictest0-21swapper/323:14:033
170389940,4cyclictest0-21swapper/322:46:463
170389940,4cyclictest0-21swapper/321:57:343
170389940,4cyclictest0-21swapper/321:32:413
170389940,4cyclictest0-21swapper/321:23:283
170389940,4cyclictest0-21swapper/319:50:013
170389940,3cyclictest8361-21apt-get21:00:103
170389940,3cyclictest802-21snmpd23:30:093
170389940,3cyclictest7253-21cat23:45:143
170389940,3cyclictest26860-21date23:55:003
170389940,3cyclictest26690-21ssh23:06:423
170389940,3cyclictest16396-21rm21:26:343
170389940,3cyclictest14410-21fw_packets21:10:153
170389940,1cyclictest27241-21memory22:35:173
170389940,1cyclictest23753-21sed21:15:013
170389940,0cyclictest0-21swapper/300:35:263
170309944,0cyclictest0-21swapper/200:21:112
170309943,1cyclictest205-21systemd-journal22:25:012
170309943,1cyclictest1021-21grep21:35:132
170309942,1cyclictest551-21ssh00:13:532
170309941,3cyclictest0-21swapper/222:28:322
170309941,2cyclictest0-21swapper/219:25:122
170309941,1cyclictest0-21swapper/221:05:122
170309941,1cyclictest0-21swapper/220:10:132
170309940,4cyclictest0-21swapper/223:40:102
170309940,4cyclictest0-21swapper/223:30:002
170309940,4cyclictest0-21swapper/223:20:012
170309940,4cyclictest0-21swapper/222:55:102
170309940,4cyclictest0-21swapper/222:50:022
170309940,4cyclictest0-21swapper/222:35:122
170309940,4cyclictest0-21swapper/221:55:112
170309940,4cyclictest0-21swapper/221:50:272
170309940,4cyclictest0-21swapper/221:40:122
170309940,4cyclictest0-21swapper/221:00:112
170309940,4cyclictest0-21swapper/219:55:122
170309940,4cyclictest0-21swapper/200:15:102
170309940,4cyclictest0-21swapper/200:05:162
170309940,3cyclictest32741-21cut19:40:012
170309940,3cyclictest32726-21cron00:30:002
170309940,3cyclictest32307-21ssh22:05:462
170309940,3cyclictest2976-21/usr/sbin/munin21:20:152
170309940,3cyclictest22110-21sh23:52:112
170309940,3cyclictest16290-21ssh21:10:442
170309940,3cyclictest16001-21sh23:49:412
170309940,3cyclictest15602-21sh22:30:032
170309940,3cyclictest14018-21/usr/sbin/munin22:45:112
170309940,1cyclictest328-21/usr/sbin/munin19:40:152
170309940,1cyclictest31625-21perl23:25:142
170309940,1cyclictest29458-21ntp_states20:35:162
170309940,1cyclictest22590-21/usr/sbin/munin21:30:152
170309940,1cyclictest20403-21/usr/sbin/munin19:15:132
170309940,1cyclictest17887-21/usr/sbin/munin20:15:192
170309940,1cyclictest17623-21/usr/sbin/munin22:15:152
170309940,1cyclictest11802-21grep00:35:142
170309940,1cyclictest11033-21fschecks_count23:15:152
170309940,0cyclictest0-21swapper/223:12:132
170259944,0cyclictest0-21swapper/122:44:491
170259944,0cyclictest0-21swapper/122:12:221
170259944,0cyclictest0-21swapper/121:23:111
170259942,1cyclictest0-21swapper/123:30:111
170259942,1cyclictest0-21swapper/123:10:101
170259942,1cyclictest0-21swapper/122:30:111
170259941,2cyclictest0-21swapper/123:50:111
170259941,2cyclictest0-21swapper/122:55:101
170259941,2cyclictest0-21swapper/122:35:121
170259941,2cyclictest0-21swapper/121:00:111
170259941,2cyclictest0-21swapper/120:30:011
170259941,2cyclictest0-21swapper/120:00:111
170259941,2cyclictest0-21swapper/119:50:121
170259941,1cyclictest0-21swapper/123:45:121
170259941,1cyclictest0-21swapper/121:25:111
170259940,4cyclictest0-21swapper/122:25:011
170259940,4cyclictest0-21swapper/122:18:201
170259940,4cyclictest0-21swapper/119:19:561
170259940,4cyclictest0-21swapper/100:07:451
170259940,0cyclictest0-21swapper/122:06:241
170219944,0cyclictest0-21swapper/023:15:370
170219944,0cyclictest0-21swapper/021:54:260
170219944,0cyclictest0-21swapper/021:29:420
170219944,0cyclictest0-21swapper/020:48:300
170219944,0cyclictest0-21swapper/019:39:590
170219944,0cyclictest0-21swapper/000:03:030
170219943,1cyclictest9401-21grep22:10:200
170219943,1cyclictest26272-21gltestperf20:30:140
170219942,1cyclictest25134-21latency_hist19:25:010
170219942,1cyclictest24177-21ssh21:15:140
170219941,3cyclictest0-21swapper/021:30:160
170219940,4cyclictest9832-21latency_hist23:15:010
170219940,4cyclictest19590-21df23:35:130
170219940,4cyclictest19333-21ssh23:50:270
170219940,4cyclictest0-21swapper/023:55:090
170219940,4cyclictest0-21swapper/023:20:000
170219940,4cyclictest0-21swapper/023:02:150
170219940,4cyclictest0-21swapper/022:56:550
170219940,4cyclictest0-21swapper/022:15:130
170219940,4cyclictest0-21swapper/022:06:410
170219940,4cyclictest0-21swapper/021:55:110
170219940,4cyclictest0-21swapper/021:40:120
170219940,4cyclictest0-21swapper/021:35:110
170219940,4cyclictest0-21swapper/020:50:110
170219940,4cyclictest0-21swapper/020:12:000
170219940,4cyclictest0-21swapper/000:35:120
170219940,4cyclictest0-21swapper/000:20:130
170219940,3cyclictest9085-21sh22:42:180
170219940,3cyclictest4362-21ssh23:27:420
170219940,3cyclictest29837-21ssh21:49:290
170219940,3cyclictest24297-21/usr/sbin/munin00:25:160
170219940,3cyclictest2384-21latency_hist00:15:010
170219940,3cyclictest22365-21ssh22:49:100
170219940,3cyclictest10913-21ssh23:46:310
170219940,1cyclictest457-21latency_hist20:45:000
170219940,1cyclictest27607-21latency_hist19:30:010
170219940,0cyclictest0-21swapper/022:33:430
170389932,1cyclictest11111-21cstates21:40:133
170389931,1cyclictest0-21swapper/322:30:113
170389931,1cyclictest0-21swapper/319:55:113
170389931,1cyclictest0-21swapper/319:15:123
170389931,0cyclictest0-21swapper/320:45:113
170389930,3cyclictest3666-21ssh22:40:053
170389930,3cyclictest27833-21apt-get19:30:103
170389930,3cyclictest25526-21memory22:50:193
170389930,3cyclictest1867-21taskset22:55:073
170389930,3cyclictest15241-21apt-get00:05:163
170389930,3cyclictest13072-21diskmemload23:55:013
170389930,3cyclictest13072-21diskmemload22:00:053
170389930,3cyclictest13072-21diskmemload00:15:043
170389930,3cyclictest0-21swapper/321:50:123
170389930,3cyclictest0-21swapper/321:05:123
170389930,3cyclictest0-21swapper/320:50:073
170389930,3cyclictest0-21swapper/320:40:113
170389930,3cyclictest0-21swapper/320:25:113
170389930,3cyclictest0-21swapper/320:20:113
170389930,3cyclictest0-21swapper/320:15:053
170389930,3cyclictest0-21swapper/320:05:123
170389930,3cyclictest0-21swapper/320:00:073
170389930,3cyclictest0-21swapper/319:45:123
170389930,3cyclictest0-21swapper/319:35:123
170389930,3cyclictest0-21swapper/319:25:113
170389930,3cyclictest0-21swapper/319:20:063
170389930,3cyclictest0-21swapper/319:10:103
170389930,3cyclictest0-21swapper/300:25:113
170389930,3cyclictest0-21swapper/300:10:123
170389930,3cyclictest0-21swapper/300:00:033
170389930,2cyclictest30720-21ssh23:25:063
170309931,1cyclictest799-21runrttasks20:00:022
170309931,1cyclictest0-21swapper/220:05:122
170309931,1cyclictest0-21swapper/200:25:112
170309930,3cyclictest7911-21df22:10:132
170309930,3cyclictest5085-21apt-get19:50:012
170309930,3cyclictest22124-21rm23:05:022
170309930,3cyclictest20849-21ssh21:45:082
170309930,3cyclictest12698-21cat23:00:132
170309930,3cyclictest0-21swapper/222:40:112
170309930,3cyclictest0-21swapper/220:55:002
170309930,3cyclictest0-21swapper/220:45:112
170309930,3cyclictest0-21swapper/220:25:052
170309930,3cyclictest0-21swapper/220:20:122
170309930,3cyclictest0-21swapper/219:45:052
170309930,3cyclictest0-21swapper/219:30:102
170309930,3cyclictest0-21swapper/219:20:102
170309930,3cyclictest0-21swapper/219:10:142
170309930,3cyclictest0-21swapper/200:00:122
170309930,1cyclictest26978-21ssh23:55:032
170309930,1cyclictest0-21swapper/223:35:032
170309930,0cyclictest25091-21apt-get20:30:002
170309930,0cyclictest0-21swapper/220:40:162
170259933,0cyclictest0-21swapper/123:03:261
170259931,2cyclictest0-21swapper/120:10:131
170259931,1cyclictest0-21swapper/123:55:091
170259931,1cyclictest0-21swapper/123:40:101
170259931,1cyclictest0-21swapper/123:05:111
170259931,1cyclictest0-21swapper/121:55:111
170259931,1cyclictest0-21swapper/121:15:141
170259931,1cyclictest0-21swapper/121:05:121
170259931,1cyclictest0-21swapper/120:55:101
170259931,1cyclictest0-21swapper/120:45:111
170259931,1cyclictest0-21swapper/120:35:101
170259931,1cyclictest0-21swapper/120:25:111
170259931,1cyclictest0-21swapper/120:15:111
170259931,1cyclictest0-21swapper/119:55:111
170259931,1cyclictest0-21swapper/119:25:111
170259931,1cyclictest0-21swapper/119:20:101
170259931,1cyclictest0-21swapper/119:10:151
170259931,1cyclictest0-21swapper/100:30:121
170259931,1cyclictest0-21swapper/100:20:131
170259931,1cyclictest0-21swapper/100:15:101
170259930,2cyclictest0-21swapper/123:20:011
170259930,2cyclictest0-21swapper/120:40:111
170259930,2cyclictest0-21swapper/119:35:131
170259930,2cyclictest0-21swapper/100:00:131
170219930,3cyclictest5400-21ssh22:25:040
170219930,3cyclictest25843-21ssh22:35:050
170219930,3cyclictest18946-21head19:10:250
170219930,3cyclictest11850irq/131-ahci[0023:30:000
170219930,3cyclictest0-21swapper/023:05:020
170219930,3cyclictest0-21swapper/022:50:110
170219930,3cyclictest0-21swapper/021:10:120
170219930,3cyclictest0-21swapper/021:05:370
170219930,3cyclictest0-21swapper/021:00:110
170219930,3cyclictest0-21swapper/020:35:020
170219930,3cyclictest0-21swapper/020:25:110
170219930,3cyclictest0-21swapper/020:15:110
170219930,3cyclictest0-21swapper/020:05:120
170219930,3cyclictest0-21swapper/020:00:110
170219930,3cyclictest0-21swapper/019:55:110
170219930,3cyclictest0-21swapper/019:50:020
170219930,3cyclictest0-21swapper/019:45:110
170219930,3cyclictest0-21swapper/019:40:110
170219930,3cyclictest0-21swapper/019:30:100
170219930,3cyclictest0-21swapper/019:15:120
170219930,3cyclictest0-21swapper/000:30:120
170219930,3cyclictest0-21swapper/000:15:060
170259921,1cyclictest137612chrt22:45:011
170259921,1cyclictest133002chrt21:10:011
170259921,1cyclictest0-21swapper/121:35:111
170259921,1cyclictest0-21swapper/120:05:121
170259921,1cyclictest0-21swapper/119:40:111
170259921,0cyclictest0-21swapper/123:15:131
170259920,2cyclictest0-21swapper/123:25:111
170259920,1cyclictest27715-21chrt22:20:071
170259920,1cyclictest23019-21chrt00:25:061
170259920,1cyclictest0-21swapper/123:35:111
170259920,1cyclictest0-21swapper/122:50:111
170259920,1cyclictest0-21swapper/121:45:021
170259920,1cyclictest0-21swapper/120:50:111
170259920,1cyclictest0-21swapper/120:20:111
170259920,1cyclictest0-21swapper/119:45:111
170259920,1cyclictest0-21swapper/119:30:101
170259920,1cyclictest0-21swapper/100:35:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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