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2026-05-09 - 07:39
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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 Sat May 09, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236602195179,11sleep10-21swapper/119:09:521
233692183167,11sleep30-21swapper/319:06:103
233412182166,12sleep00-21swapper/019:05:460
233432176159,12sleep20-21swapper/219:05:482
207872490,0sleep00-21swapper/021:41:190
306832460,0sleep00-21swapper/000:09:440
159632450,0sleep10-21swapper/122:58:391
127572440,0sleep00-21swapper/023:12:470
62062420,0sleep00-21swapper/023:25:160
221692390,1sleep22384799cyclictest22:30:052
238519960,5cyclictest0-21swapper/320:30:013
238429960,3cyclictest6227-21perf23:10:000
15135260,0sleep10-21swapper/121:55:021
9566250,0sleep20-21swapper/200:30:272
238519955,0cyclictest0-21swapper/321:38:393
238519950,5cyclictest0-21swapper/300:03:423
238519950,4cyclictest5413-21df_inode23:25:123
238519950,4cyclictest28005-21cat23:20:133
238519950,4cyclictest17063-21apt-get20:00:113
238519950,4cyclictest0-21swapper/300:30:123
238479952,3cyclictest802-21snmpd20:57:262
238479950,5cyclictest0-21swapper/223:57:592
238479950,5cyclictest0-21swapper/222:03:202
238479950,5cyclictest0-21swapper/221:13:432
238479950,5cyclictest0-21swapper/220:14:552
238479950,5cyclictest0-21swapper/200:35:142
238479950,4cyclictest0-21swapper/221:55:102
238479950,0cyclictest0-21swapper/223:13:102
238439954,1cyclictest23442sleep122:04:341
238439951,3cyclictest0-21swapper/122:35:121
238439951,2cyclictest0-21swapper/123:30:121
238439951,2cyclictest0-21swapper/121:10:111
238439951,2cyclictest0-21swapper/121:05:111
238439950,5cyclictest0-21swapper/100:32:241
238429955,0cyclictest3-21ksoftirqd/021:35:010
238429955,0cyclictest0-21swapper/021:21:460
238429954,0cyclictest3-21ksoftirqd/019:35:000
238429950,5cyclictest0-21swapper/023:57:190
238429950,5cyclictest0-21swapper/022:05:340
238429950,5cyclictest0-21swapper/019:15:090
238429950,0cyclictest1600-21ssh22:04:070
20213250,0sleep20-21swapper/221:25:212
7916240,0sleep10-21swapper/119:40:131
4069240,0sleep00-21swapper/022:20:220
238519944,0cyclictest0-21swapper/300:17:143
238519943,1cyclictest24920-21ntp_states23:50:173
238519943,1cyclictest19680-21grep00:20:113
238519943,1cyclictest10843-21dump-pmu-power00:00:003
238519942,2cyclictest18383-21ssh21:55:523
238519942,1cyclictest23407-21if_eth122:30:173
238519941,3cyclictest8981-21ssh21:51:233
238519941,2cyclictest0-21swapper/321:00:123
238519940,4cyclictest5852-21ssh23:40:423
238519940,4cyclictest0-21swapper/323:45:113
238519940,4cyclictest0-21swapper/323:33:593
238519940,4cyclictest0-21swapper/323:15:113
238519940,4cyclictest0-21swapper/323:07:233
238519940,4cyclictest0-21swapper/322:55:113
238519940,4cyclictest0-21swapper/322:35:123
238519940,4cyclictest0-21swapper/321:45:113
238519940,4cyclictest0-21swapper/321:30:123
238519940,4cyclictest0-21swapper/321:24:563
238519940,4cyclictest0-21swapper/300:35:593
238519940,4cyclictest0-21swapper/300:26:433
238519940,3cyclictest9591-21apt-get20:50:103
238519940,3cyclictest7486-21perl23:10:133
238519940,3cyclictest7260-21ssh21:19:543
238519940,3cyclictest3784-21ssh22:52:243
238519940,3cyclictest3357-21sh22:05:033
238519940,3cyclictest28585-21cat23:05:003
238519940,3cyclictest26551-21sh22:15:343
238519940,3cyclictest26445-21df19:15:013
238519940,3cyclictest22214-21grep20:10:113
238519940,3cyclictest21317-21ssh00:05:033
238519940,3cyclictest20327-21ssh22:45:023
238519940,3cyclictest17015-21/usr/sbin/munin21:05:163
238519940,3cyclictest13867-21ssh22:10:103
238519940,3cyclictest12625-21df_inode19:50:133
238519940,3cyclictest1250-21python19:25:193
238519940,3cyclictest11364-21/usr/sbin/munin22:40:133
238519940,0cyclictest0-21swapper/321:40:063
238479944,0cyclictest0-21swapper/222:05:312
238479944,0cyclictest0-21swapper/221:15:102
238479943,1cyclictest4652-21cut23:40:172
238479943,1cyclictest32156-21/usr/sbin/munin19:25:132
238479943,1cyclictest31-21ksoftirqd/219:15:012
238479943,1cyclictest12702-21head00:00:172
238479942,2cyclictest31-21ksoftirqd/221:35:112
238479942,2cyclictest18722-21ssh23:31:212
238479941,3cyclictest57150irq/125-eth022:10:102
238479941,2cyclictest26390-21kworker/2:021:24:022
238479940,4cyclictest4841-21apt-get23:25:102
238479940,4cyclictest18761-21/usr/sbin/munin23:00:132
238479940,4cyclictest0-21swapper/223:37:222
238479940,4cyclictest0-21swapper/223:23:202
238479940,4cyclictest0-21swapper/223:18:082
238479940,4cyclictest0-21swapper/222:56:092
238479940,4cyclictest0-21swapper/222:46:332
238479940,4cyclictest0-21swapper/222:40:102
238479940,4cyclictest0-21swapper/222:21:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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