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2026-05-18 - 20:51
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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 Mon May 18, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205812205190,11sleep10-21swapper/107:08:481
203832197181,11sleep30-21swapper/307:06:133
206192190175,11sleep00-21swapper/007:09:150
20604211092,13sleep20-21swapper/207:09:062
266412470,0sleep00-21swapper/009:14:570
203482460,0sleep10-21swapper/112:21:261
264932420,0sleep30-21swapper/308:25:123
90132410,0sleep30-21swapper/312:15:443
6897260,0sleep10-21swapper/111:27:091
208719961,4cyclictest0-21swapper/310:25:113
208599961,5cyclictest23403-21kworker/0:007:15:180
208599960,6cyclictest0-21swapper/008:45:110
208599960,3cyclictest11738-21munin-run09:55:000
15513260,0sleep00-21swapper/010:12:030
30922250,0sleep10-21swapper/111:07:071
208719955,0cyclictest24205-21kworker/3:212:29:353
208719955,0cyclictest24205-21kworker/3:211:33:373
208719955,0cyclictest24205-21kworker/3:211:22:253
208719955,0cyclictest24205-21kworker/3:210:48:523
208719955,0cyclictest24205-21kworker/3:210:15:153
208719955,0cyclictest24205-21kworker/3:208:34:303
208719955,0cyclictest16467-21diskmemload12:20:393
208719951,2cyclictest0-21swapper/311:05:123
208719951,2cyclictest0-21swapper/309:20:113
208719950,5cyclictest0-21swapper/312:01:013
208719950,5cyclictest0-21swapper/310:13:203
208719950,4cyclictest1684-21apt-get07:35:123
208719950,4cyclictest16467-21diskmemload10:40:123
208719950,4cyclictest0-21swapper/309:05:023
208669950,5cyclictest0-21swapper/211:18:322
208669950,5cyclictest0-21swapper/209:57:472
208639951,2cyclictest0-21swapper/111:45:101
208639950,5cyclictest0-21swapper/111:17:251
208639950,2cyclictest0-21swapper/110:45:121
208599954,1cyclictest0-21swapper/012:33:430
208599952,3cyclictest23403-21kworker/0:011:30:120
208599950,5cyclictest9107-21ssh10:09:230
208599950,5cyclictest23403-21kworker/0:007:30:210
208599950,5cyclictest0-21swapper/012:23:060
208599950,5cyclictest0-21swapper/010:00:220
208599950,5cyclictest0-21swapper/009:55:510
208599950,4cyclictest0-21swapper/012:15:100
208599950,4cyclictest0-21swapper/009:35:120
208599950,0cyclictest0-21swapper/010:31:120
9184240,0sleep10-21swapper/112:15:491
21888240,0sleep10-21swapper/110:30:451
208719944,0cyclictest24205-21kworker/3:211:00:013
208719944,0cyclictest24205-21kworker/3:208:56:533
208719944,0cyclictest24205-21kworker/3:208:45:403
208719944,0cyclictest24205-21kworker/3:208:23:173
208719944,0cyclictest24205-21kworker/3:208:12:053
208719944,0cyclictest0-21swapper/310:23:053
208719944,0cyclictest0-21swapper/310:08:503
208719943,1cyclictest30832-21wc07:25:203
208719943,1cyclictest1053-21users07:30:213
208719942,1cyclictest1984-21diskstats08:40:123
208719942,1cyclictest0-21swapper/310:00:123
208719941,3cyclictest16467-21diskmemload09:50:083
208719941,2cyclictest0-21swapper/309:45:123
208719941,2cyclictest0-21swapper/309:10:123
208719941,2cyclictest0-21swapper/308:15:103
208719941,1cyclictest0-21swapper/309:30:113
208719940,4cyclictest16467-21diskmemload11:36:343
208719940,4cyclictest0-21swapper/312:35:263
208719940,4cyclictest0-21swapper/312:05:123
208719940,4cyclictest0-21swapper/311:55:123
208719940,4cyclictest0-21swapper/311:45:523
208719940,4cyclictest0-21swapper/311:44:143
208719940,4cyclictest0-21swapper/310:55:163
208719940,4cyclictest0-21swapper/310:50:103
208719940,4cyclictest0-21swapper/309:55:113
208719940,4cyclictest0-21swapper/309:26:333
208719940,4cyclictest0-21swapper/309:00:143
208719940,3cyclictest4221-21apt-get12:30:013
208719940,3cyclictest3383-21chrt09:35:023
208719940,3cyclictest30094-21perl10:35:143
208719940,3cyclictest25844-21sh10:33:113
208719940,3cyclictest20833-21diskstats11:50:133
208719940,3cyclictest16467-21diskmemload11:25:013
208719940,3cyclictest13381-21cron09:40:003
208719940,3cyclictest0-21swapper/308:50:093
208669944,0cyclictest0-21swapper/212:16:522
208669944,0cyclictest0-21swapper/212:02:282
208669944,0cyclictest0-21swapper/208:50:152
208669942,1cyclictest1681-21/usr/sbin/munin07:35:192
208669942,1cyclictest0-21swapper/208:55:112
208669941,3cyclictest25696-21ssh09:30:082
208669940,4cyclictest17786-21memory12:20:202
208669940,4cyclictest0-21swapper/212:26:472
208669940,4cyclictest0-21swapper/211:58:422
208669940,4cyclictest0-21swapper/211:46:402
208669940,4cyclictest0-21swapper/211:25:172
208669940,4cyclictest0-21swapper/211:06:492
208669940,4cyclictest0-21swapper/210:57:132
208669940,4cyclictest0-21swapper/210:10:552
208669940,4cyclictest0-21swapper/209:36:412
208669940,4cyclictest0-21swapper/208:15:102
208669940,4cyclictest0-21swapper/208:10:132
208669940,4cyclictest0-21swapper/207:45:112
208669940,4cyclictest0-21swapper/207:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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