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2026-04-25 - 16:23
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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 Apr 25, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120492207192,11sleep10-21swapper/107:08:471
120782200184,12sleep00-21swapper/007:09:110
120242177164,10sleep30-21swapper/307:08:303
121392172154,13sleep20-21swapper/207:09:582
28412480,0sleep10-21swapper/110:25:241
284292460,0sleep00-21swapper/009:50:330
24282440,0sleep30-21swapper/309:22:403
175582440,0sleep20-21swapper/211:05:122
25042430,0sleep20-21swapper/209:38:422
234052430,0sleep30-21swapper/309:17:003
9382420,0sleep00-21swapper/012:00:150
88512420,0sleep10-21swapper/112:36:001
14122320,1sleep11232999cyclictest12:16:211
278152140,0sleep10-21swapper/110:54:181
208602120,0sleep30-21swapper/310:35:023
223452110,1sleep322347-21unixbench-2d08:30:203
123429970,6cyclictest0-21swapper/311:25:113
123249971,3cyclictest6299-21perf09:25:010
123249971,3cyclictest17436-21idleruntime-cro12:25:000
123429965,0cyclictest17957-21ssh12:25:113
123299961,3cyclictest0-21swapper/111:40:121
24609250,1sleep30-21swapper/310:52:213
123429955,0cyclictest30058-21kworker/3:211:59:013
123429955,0cyclictest30058-21kworker/3:208:59:523
123429955,0cyclictest30058-21kworker/3:208:15:063
123429955,0cyclictest14898-21kworker/3:107:41:323
123429950,5cyclictest0-21swapper/311:43:153
123429950,5cyclictest0-21swapper/309:49:093
123429950,1cyclictest29897-21users08:45:223
123339954,1cyclictest7153-21ssh09:56:052
123339952,3cyclictest8863-21ssh12:35:592
123339950,5cyclictest0-21swapper/212:00:042
123339950,5cyclictest0-21swapper/211:44:112
123339950,5cyclictest0-21swapper/211:10:432
123339950,5cyclictest0-21swapper/210:58:572
123339950,4cyclictest15673-21apt-get07:15:132
123339950,0cyclictest22606-21ssh10:04:152
123299955,0cyclictest0-21swapper/110:23:391
123299951,2cyclictest0-21swapper/107:45:121
123299951,2cyclictest0-21swapper/107:35:131
123299951,2cyclictest0-21swapper/107:10:121
123299950,5cyclictest0-21swapper/111:04:151
123299950,5cyclictest0-21swapper/109:46:331
123249952,3cyclictest19885-21ssh10:50:140
123249950,5cyclictest0-21swapper/011:57:350
123249950,5cyclictest0-21swapper/009:26:250
123249950,4cyclictest14817-21munin-node07:15:000
123249950,4cyclictest0-21swapper/007:30:120
123249950,0cyclictest0-21swapper/010:27:500
23373240,0sleep10-21swapper/109:32:571
123429944,0cyclictest0-21swapper/311:23:453
123429940,4cyclictest7868-21latency_hist08:05:013
123429940,4cyclictest7777-21diskmemload11:46:473
123429940,4cyclictest29155-21ssh10:06:513
123429940,4cyclictest13610-21ssh11:02:563
123429940,4cyclictest0-21swapper/312:35:133
123429940,4cyclictest0-21swapper/312:15:133
123429940,4cyclictest0-21swapper/312:10:013
123429940,4cyclictest0-21swapper/312:01:213
123429940,4cyclictest0-21swapper/311:37:263
123429940,4cyclictest0-21swapper/311:05:123
123429940,4cyclictest0-21swapper/310:34:493
123429940,4cyclictest0-21swapper/310:12:333
123429940,4cyclictest0-21swapper/309:55:143
123429940,4cyclictest0-21swapper/309:40:403
123429940,4cyclictest0-21swapper/309:31:493
123429940,4cyclictest0-21swapper/309:25:143
123429940,4cyclictest0-21swapper/308:40:113
123429940,4cyclictest0-21swapper/308:25:123
123429940,4cyclictest0-21swapper/307:15:133
123429940,3cyclictest9034-21perl09:10:153
123429940,3cyclictest3013-21latency_hist11:30:003
123429940,3cyclictest30011-21df10:55:123
123429940,3cyclictest27699-21ssh11:10:133
123429940,3cyclictest20744-21ssh10:03:063
123429940,3cyclictest1850-21cat10:25:173
123429940,3cyclictest13052-21irqstats11:50:173
123429940,3cyclictest10515-21apt08:10:123
123429940,1cyclictest971-21users10:40:213
123429940,1cyclictest18771-21munin-run10:50:013
123339944,0cyclictest0-21swapper/211:25:352
123339944,0cyclictest0-21swapper/210:30:172
123339944,0cyclictest0-21swapper/209:45:022
123339944,0cyclictest0-21swapper/209:18:162
123339943,1cyclictest552-21/usr/sbin/munin08:55:202
123339942,2cyclictest0-21swapper/210:50:132
123339942,1cyclictest802-21snmpd07:46:362
123339941,3cyclictest57150irq/125-eth012:05:132
123339941,3cyclictest57150irq/125-eth010:47:122
123339940,4cyclictest9131-21ssh11:32:312
123339940,4cyclictest8201-21ssh11:15:472
123339940,4cyclictest28056-21apt-get08:45:132
123339940,4cyclictest25707-21ssh10:05:162
123339940,4cyclictest25611-21ssh10:20:452
123339940,4cyclictest0-21swapper/212:30:502
123339940,4cyclictest0-21swapper/212:20:162
123339940,4cyclictest0-21swapper/212:15:552
123339940,4cyclictest0-21swapper/211:54:582
123339940,4cyclictest0-21swapper/211:38:132
123339940,4cyclictest0-21swapper/209:41:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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