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2026-08-20 - 01:54
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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 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Aug 19, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289522200184,11sleep30-21swapper/307:07:163
291092198182,11sleep10-21swapper/107:09:161
289542195178,12sleep00-21swapper/007:07:170
288742171154,13sleep20-21swapper/207:06:162
93432480,0sleep10-21swapper/112:34:511
90062470,0sleep00-21swapper/012:34:370
2938299111,8cyclictest0-21swapper/011:45:100
126302110,0sleep30-21swapper/310:40:343
2938299102,4cyclictest8320-21munin-run11:45:000
20516290,0sleep10-21swapper/111:17:521
293969963,3cyclictest4890-21munin-run10:05:013
293969960,6cyclictest0-21swapper/309:19:223
293829960,1cyclictest21200-21perl09:40:150
6379250,0sleep20-21swapper/212:32:572
293969955,0cyclictest16604-21kworker/3:209:45:023
293969955,0cyclictest0-21swapper/311:36:243
293969950,5cyclictest2864-21ssh11:41:303
293969950,5cyclictest0-21swapper/309:11:123
293969950,4cyclictest15128-21apt-get07:45:113
293919955,0cyclictest0-21swapper/210:21:262
293919951,2cyclictest0-21swapper/210:45:132
293919950,5cyclictest0-21swapper/211:45:582
293919950,5cyclictest0-21swapper/211:14:332
293919950,5cyclictest0-21swapper/210:28:442
293919950,5cyclictest0-21swapper/208:10:212
293919950,4cyclictest0-21swapper/211:35:122
293879950,5cyclictest0-21swapper/110:49:461
293879950,5cyclictest0-21swapper/109:22:111
293829950,5cyclictest9277-21timerandwakeup10:55:230
293829950,5cyclictest0-21swapper/009:55:490
293829950,4cyclictest32532-21ntp_states07:15:010
293829950,4cyclictest0-21swapper/008:40:110
293829950,3cyclictest0-21swapper/012:27:140
293829950,0cyclictest0-21swapper/011:32:420
293969944,0cyclictest16604-21kworker/3:208:26:403
293969944,0cyclictest0-21swapper/312:26:283
293969944,0cyclictest0-21swapper/311:46:363
293969944,0cyclictest0-21swapper/311:10:393
293969944,0cyclictest0-21swapper/307:40:233
293969944,0cyclictest0-21swapper/307:30:133
293969943,1cyclictest26538-21sed08:05:203
293969942,2cyclictest13628-21ssh12:36:153
293969941,3cyclictest802-21snmpd09:27:083
293969941,3cyclictest25430-21cat11:20:153
293969940,4cyclictest3926-21ssh12:31:203
293969940,4cyclictest10416-21ssh09:50:413
293969940,4cyclictest0-21swapper/311:55:133
293969940,4cyclictest0-21swapper/311:50:103
293969940,4cyclictest0-21swapper/310:55:143
293969940,4cyclictest0-21swapper/310:31:033
293969940,4cyclictest0-21swapper/310:25:113
293969940,4cyclictest0-21swapper/310:15:143
293969940,4cyclictest0-21swapper/310:10:113
293969940,4cyclictest0-21swapper/309:40:113
293969940,4cyclictest0-21swapper/309:35:123
293969940,4cyclictest0-21swapper/308:35:193
293969940,3cyclictest5446-21ssh10:05:063
293969940,3cyclictest32456-21ssh10:50:383
293969940,3cyclictest32113-21if_eth407:15:003
293969940,3cyclictest31843-21munin-node07:15:003
293969940,3cyclictest2788-21ssh10:20:093
293969940,3cyclictest27191-21ssh12:10:173
293969940,3cyclictest2449-21sed09:30:213
293969940,3cyclictest21075-21munin-run11:35:003
293969940,3cyclictest18885-21irqstats09:55:183
293969940,3cyclictest15591-21ssh11:15:173
293969940,3cyclictest15517-21cat12:04:593
293969940,3cyclictest14516-21ntp_states12:20:183
293969940,3cyclictest14296-21ssh09:20:183
293969940,3cyclictest1198-21/usr/sbin/munin10:35:143
293969940,0cyclictest0-21swapper/311:03:313
293919944,0cyclictest31-21ksoftirqd/211:40:142
293919944,0cyclictest31-21ksoftirqd/210:05:012
293919944,0cyclictest0-21swapper/211:06:072
293919943,1cyclictest31924-21kworker/2:209:57:182
293919942,2cyclictest31924-21kworker/2:208:41:452
293919942,2cyclictest31924-21kworker/2:207:53:042
293919942,2cyclictest25158-21diskmemload10:59:152
293919941,3cyclictest22404-21sh11:19:042
293919941,3cyclictest0-21swapper/209:11:202
293919941,2cyclictest0-21swapper/208:00:022
293919941,1cyclictest0-21swapper/212:25:122
293919941,1cyclictest0-21swapper/210:05:132
293919940,4cyclictest3147-21ssh09:15:122
293919940,4cyclictest25885-21ssh09:25:532
293919940,4cyclictest0-21swapper/212:20:122
293919940,4cyclictest0-21swapper/212:05:012
293919940,4cyclictest0-21swapper/212:03:192
293919940,4cyclictest0-21swapper/211:30:102
293919940,4cyclictest0-21swapper/211:23:322
293919940,4cyclictest0-21swapper/211:00:132
293919940,4cyclictest0-21swapper/210:41:262
293919940,4cyclictest0-21swapper/210:39:262
293919940,4cyclictest0-21swapper/210:14:242
293919940,4cyclictest0-21swapper/209:50:092
293919940,4cyclictest0-21swapper/209:45:132
293919940,4cyclictest0-21swapper/209:20:522
293919940,4cyclictest0-21swapper/208:55:122
293919940,4cyclictest0-21swapper/207:15:122
293919940,3cyclictest6949-21cut10:55:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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