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2025-12-10 - 04:11
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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 Dec 10, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172472188171,12sleep30-21swapper/319:09:093
172392186171,11sleep00-21swapper/019:09:030
172502184167,12sleep10-21swapper/119:09:121
170062173155,13sleep20-21swapper/219:06:042
138972510,0sleep00-21swapper/021:59:000
267862450,0sleep10-21swapper/122:54:341
92082390,0sleep10-21swapper/100:23:341
42202180,0sleep30-21swapper/323:15:183
174869980,7cyclictest0-21swapper/022:15:120
174869970,3cyclictest19522-21munin-run23:40:000
174959965,1cyclictest0-21swapper/222:32:582
174909962,3cyclictest0-21swapper/119:40:101
174909961,4cyclictest0-21swapper/120:15:161
174909961,3cyclictest0-21swapper/122:45:121
174909961,3cyclictest0-21swapper/121:25:161
174909961,3cyclictest0-21swapper/120:50:141
9271250,0sleep00-21swapper/023:01:260
24671250,0sleep10-21swapper/123:09:551
174999950,5cyclictest15636-21ssh00:26:203
174999950,5cyclictest0-21swapper/321:41:363
174999950,0cyclictest0-21swapper/321:50:133
174999950,0cyclictest0-21swapper/300:16:013
174959955,0cyclictest0-21swapper/223:08:112
174959952,3cyclictest1731-21ssh22:09:142
174959950,5cyclictest2080-21ntp_states19:40:162
174959950,5cyclictest0-21swapper/223:58:502
174959950,5cyclictest0-21swapper/223:26:562
174959950,5cyclictest0-21swapper/222:38:122
174959950,5cyclictest0-21swapper/200:26:362
174959950,5cyclictest0-21swapper/200:16:152
174959950,5cyclictest0-21swapper/200:04:392
174959950,0cyclictest0-21swapper/223:41:562
174959950,0cyclictest0-21swapper/221:55:432
174959950,0cyclictest0-21swapper/221:41:362
174909955,0cyclictest0-21swapper/122:28:401
174909954,1cyclictest0-21swapper/123:04:011
174909951,3cyclictest0-21swapper/121:40:111
174909951,3cyclictest0-21swapper/100:35:131
174909951,2cyclictest0-21swapper/123:15:131
174909951,2cyclictest0-21swapper/122:15:111
174909951,2cyclictest0-21swapper/121:55:131
174909951,2cyclictest0-21swapper/121:15:141
174909951,2cyclictest0-21swapper/120:45:131
174909951,2cyclictest0-21swapper/120:30:111
174909951,2cyclictest0-21swapper/120:05:131
174909950,5cyclictest0-21swapper/100:26:301
174869955,0cyclictest20083-21kworker/0:121:22:590
174869950,5cyclictest0-21swapper/022:40:080
5419240,0sleep00-21swapper/000:21:100
174999944,0cyclictest0-21swapper/322:55:073
174999944,0cyclictest0-21swapper/322:05:043
174999943,1cyclictest8799-21fschecks_count21:00:153
174999942,2cyclictest22284-21ssh22:19:413
174999942,2cyclictest12392-21ssh22:14:433
174999940,4cyclictest32350-21ls00:35:143
174999940,4cyclictest30707-21apt-get22:40:123
174999940,4cyclictest0-21swapper/323:25:133
174999940,4cyclictest0-21swapper/322:39:243
174999940,4cyclictest0-21swapper/320:40:123
174999940,4cyclictest0-21swapper/319:35:123
174999940,4cyclictest0-21swapper/319:22:383
174999940,3cyclictest9023-21fw_packets22:45:143
174999940,3cyclictest56750irq/130-eth021:20:133
174999940,3cyclictest30675-21sh23:12:273
174999940,3cyclictest205-21systemd-journal19:50:003
174999940,3cyclictest20214-21grep19:15:013
174999940,3cyclictest18692-21diskstats22:50:133
174999940,3cyclictest1514-21perl20:45:163
174999940,1cyclictest7224-21python23:00:203
174999940,1cyclictest23088-21/usr/sbin/munin20:25:193
174999940,1cyclictest21915-21/usr/sbin/munin00:30:153
174999940,1cyclictest20617-21/usr/sbin/munin20:20:173
174999940,1cyclictest15649-21/usr/sbin/munin20:10:193
174999940,1cyclictest14682-21/usr/sbin/munin00:10:203
174999940,1cyclictest13180-21/usr/sbin/munin20:05:143
174999940,1cyclictest11320-21/usr/sbin/munin21:25:203
174999940,1cyclictest0-21swapper/323:45:123
174999940,1cyclictest0-21swapper/323:40:173
174999940,0cyclictest0-21swapper/323:58:503
174999940,0cyclictest0-21swapper/323:31:553
174999940,0cyclictest0-21swapper/323:22:093
174999940,0cyclictest0-21swapper/321:19:143
174959944,0cyclictest0-21swapper/223:47:542
174959944,0cyclictest0-21swapper/222:17:152
174959944,0cyclictest0-21swapper/221:31:162
174959944,0cyclictest0-21swapper/220:10:222
174959944,0cyclictest0-21swapper/200:05:042
174959943,1cyclictest8212-21ssh23:17:282
174959943,1cyclictest4886-21ssh23:31:582
174959943,1cyclictest3743-21ssh21:20:382
174959943,1cyclictest15087-21ssh23:20:232
174959943,1cyclictest12237-21ssh23:52:102
174959941,1cyclictest0-21swapper/220:00:142
174959941,0cyclictest0-21swapper/221:15:142
174959940,4cyclictest24288-21hddtemp_smartct22:20:152
174959940,4cyclictest19026-21hddtemp_smartct22:50:152
174959940,4cyclictest16046-21apt-get22:00:132
174959940,4cyclictest0-21swapper/223:10:402
174959940,4cyclictest0-21swapper/223:02:152
174959940,4cyclictest0-21swapper/222:42:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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