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2025-12-05 - 14:49
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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 Fri Dec 05, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278692225210,10sleep10-21swapper/107:05:551
278812191174,12sleep30-21swapper/307:06:043
279942184165,14sleep20-21swapper/207:07:322
279922179164,11sleep00-21swapper/007:07:290
285672880,0sleep10-21swapper/111:35:131
285672880,0sleep10-21swapper/111:35:131
69992480,0sleep30-21swapper/310:35:513
60122450,0sleep20-21swapper/209:47:092
147042430,0sleep00-21swapper/010:40:120
198912420,0sleep00-21swapper/009:38:100
237602410,0sleep00-21swapper/012:21:290
174422150,0sleep10-21swapper/110:57:351
251402140,0sleep10-21swapper/109:56:331
143442110,0sleep10-21swapper/111:11:551
2835399102,4cyclictest205-21systemd-journal08:05:010
283539993,3cyclictest32135-21sendmail-msp07:20:000
283539992,3cyclictest22093-21munin-run12:05:000
11820290,0sleep20-21swapper/209:34:252
283539982,3cyclictest4075-21perf07:40:000
283539981,4cyclictest17118-21ssh11:30:010
31511270,0sleep331513-21pmu-power07:15:013
283539971,3cyclictest7785-21awk07:55:000
283549961,2cyclictest0-21swapper/111:40:111
283539962,4cyclictest0-21swapper/011:55:460
283539962,4cyclictest0-21swapper/011:47:450
283539962,4cyclictest0-21swapper/011:30:100
283539962,4cyclictest0-21swapper/010:13:340
283539962,4cyclictest0-21swapper/009:52:410
283539962,4cyclictest0-21swapper/009:49:580
283539962,4cyclictest0-21swapper/009:34:010
283539960,6cyclictest0-21swapper/012:36:000
283539960,6cyclictest0-21swapper/012:30:050
283539960,6cyclictest0-21swapper/012:05:130
283539960,6cyclictest0-21swapper/011:53:020
283539960,6cyclictest0-21swapper/011:20:050
283539960,6cyclictest0-21swapper/011:04:180
283539960,6cyclictest0-21swapper/010:55:130
283539960,6cyclictest0-21swapper/009:26:250
283539960,6cyclictest0-21swapper/007:25:180
283539960,0cyclictest5448-21ssh12:29:100
283539960,0cyclictest0-21swapper/009:11:130
7626250,0sleep20-21swapper/211:09:002
283609955,0cyclictest0-21swapper/308:10:203
283609953,1cyclictest19397-21/usr/sbin/munin08:40:193
283609950,5cyclictest19430-21df10:10:143
283609950,5cyclictest0-21swapper/309:50:013
283609950,4cyclictest22996-21date09:40:003
283609950,3cyclictest17135-21ssh11:13:413
283569950,5cyclictest0-21swapper/211:53:452
283569950,5cyclictest0-21swapper/211:37:552
283569950,5cyclictest0-21swapper/211:37:552
283569950,5cyclictest0-21swapper/209:10:092
283569950,0cyclictest0-21swapper/209:53:442
283549951,2cyclictest0-21swapper/110:15:111
283549951,2cyclictest0-21swapper/110:05:131
283549950,5cyclictest0-21swapper/112:05:111
283549950,1cyclictest0-21swapper/110:45:531
283539951,4cyclictest14737-21ssh12:17:010
283539951,4cyclictest0-21swapper/011:35:130
283539951,4cyclictest0-21swapper/011:35:130
283539951,4cyclictest0-21swapper/010:50:290
283539951,4cyclictest0-21swapper/008:55:120
283539951,1cyclictest0-21swapper/011:40:100
283539950,5cyclictest13657-21ssh10:23:330
283539950,5cyclictest0-21swapper/012:12:290
283539950,5cyclictest0-21swapper/011:15:410
283539950,5cyclictest0-21swapper/011:10:330
283539950,5cyclictest0-21swapper/011:07:460
283539950,5cyclictest0-21swapper/010:45:210
283539950,5cyclictest0-21swapper/010:35:580
283539950,5cyclictest0-21swapper/010:27:330
283539950,5cyclictest0-21swapper/010:07:540
283539950,5cyclictest0-21swapper/010:00:190
283539950,5cyclictest0-21swapper/009:57:090
283539950,5cyclictest0-21swapper/009:41:180
283539950,5cyclictest0-21swapper/009:21:330
283539950,5cyclictest0-21swapper/008:40:130
283539950,0cyclictest0-21swapper/010:32:490
283539950,0cyclictest0-21swapper/010:15:090
283539950,0cyclictest0-21swapper/009:15:250
9918240,0sleep10-21swapper/110:54:101
3524240,0sleep10-21swapper/107:35:001
283609944,0cyclictest0-21swapper/310:50:333
283609944,0cyclictest0-21swapper/310:09:403
283609943,1cyclictest19770-21/usr/sbin/munin11:15:193
283609942,2cyclictest40-21ksoftirqd/312:05:173
283609942,1cyclictest24609-21memory09:40:173
283609941,3cyclictest808-21snmpd07:32:003
283609941,2cyclictest0-21swapper/312:20:123
283609940,4cyclictest9960-21rm09:49:383
283609940,4cyclictest0-21swapper/312:37:233
283609940,4cyclictest0-21swapper/312:25:143
283609940,4cyclictest0-21swapper/312:11:233
283609940,4cyclictest0-21swapper/312:02:143
283609940,4cyclictest0-21swapper/311:50:123
283609940,4cyclictest0-21swapper/311:47:003
283609940,4cyclictest0-21swapper/311:22:073
283609940,4cyclictest0-21swapper/311:05:133
283609940,4cyclictest0-21swapper/310:55:123
283609940,4cyclictest0-21swapper/310:40:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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