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2025-12-18 - 21:06
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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 rack1slot3.osadl.org (updated Thu Dec 18, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2349687991310,2cyclictest0-21swapper/308:50:013
234968799130,11cyclictest0-21swapper/307:40:133
234968799120,11cyclictest0-21swapper/310:25:013
234968799120,11cyclictest0-21swapper/309:45:013
234968799120,11cyclictest0-21swapper/309:20:123
234968799120,11cyclictest0-21swapper/307:25:123
234968799120,0cyclictest0-21swapper/308:15:123
2349687991110,0cyclictest0-21swapper/309:45:133
2349687991110,0cyclictest0-21swapper/308:35:143
2349687991110,0cyclictest0-21swapper/308:30:113
2349687991110,0cyclictest0-21swapper/307:55:123
2349687991110,0cyclictest0-21swapper/307:50:123
234968799110,1cyclictest0-21swapper/308:55:113
234968799110,11cyclictest0-21swapper/308:25:013
234968799110,11cyclictest0-21swapper/307:35:183
234968799110,10cyclictest0-21swapper/310:15:113
234968799110,10cyclictest0-21swapper/309:19:563
234968799110,10cyclictest0-21swapper/308:00:163
234968799110,0cyclictest0-21swapper/311:50:143
234968799110,0cyclictest0-21swapper/311:50:023
234968799109,0cyclictest0-21swapper/310:45:003
234968799108,1cyclictest0-21swapper/310:50:123
2349687991010,0cyclictest0-21swapper/312:35:103
2349687991010,0cyclictest0-21swapper/311:35:183
2349687991010,0cyclictest0-21swapper/309:55:123
234968799100,9cyclictest0-21swapper/312:15:193
23496879999,0cyclictest0-21swapper/312:25:123
23496879999,0cyclictest0-21swapper/311:40:193
23496879999,0cyclictest0-21swapper/310:45:123
23496879999,0cyclictest0-21swapper/310:35:183
23496879998,0cyclictest0-21swapper/311:30:143
23496879998,0cyclictest0-21swapper/311:20:133
23496879998,0cyclictest0-21swapper/311:20:123
23496879998,0cyclictest0-21swapper/310:25:163
23496879998,0cyclictest0-21swapper/307:45:133
2348287291,5sleep30-21swapper/307:05:123
2435816280,0sleep20-21swapper/210:40:162
23496879988,0cyclictest26450irq/132-ahci[0000:00:17.0]11:05:153
23496879988,0cyclictest0-21swapper/309:00:123
23496879988,0cyclictest0-21swapper/308:15:003
23496879988,0cyclictest0-21swapper/308:10:003
23496879987,0cyclictest0-21swapper/309:05:163
23496879981,6cyclictest2432865-21taskset10:35:013
23496879980,7cyclictest0-21swapper/309:30:013
23496879977,0cyclictest0-21swapper/312:34:113
23496879977,0cyclictest0-21swapper/311:29:333
23496879977,0cyclictest0-21swapper/310:10:123
23496879977,0cyclictest0-21swapper/309:10:143
23496879977,0cyclictest0-21swapper/307:15:103
23496879976,0cyclictest0-21swapper/309:30:113
23496879970,0cyclictest0-21swapper/308:45:013
2432382260,1sleep00-21swapper/010:30:500
23496879966,0cyclictest0-21swapper/312:21:023
23496879966,0cyclictest0-21swapper/312:00:143
23496879966,0cyclictest0-21swapper/308:25:143
23496879966,0cyclictest0-21swapper/307:10:083
23496879965,0cyclictest0-21swapper/311:15:133
23496879965,0cyclictest0-21swapper/309:54:593
23496879965,0cyclictest0-21swapper/307:30:203
23496879961,2cyclictest0-21swapper/312:10:143
23496879960,6cyclictest0-21swapper/310:55:023
2349325261,1sleep20-21swapper/207:07:392
23496879955,0cyclictest0-21swapper/310:05:113
23496879955,0cyclictest0-21swapper/310:00:143
23496879954,1cyclictest0-21swapper/307:20:113
23496879950,0cyclictest0-21swapper/311:55:123
14039850,3rtkit-daemon766-21snmpd10:56:220
2375684240,0sleep10-21swapper/108:12:111
23496879944,0cyclictest0-21swapper/312:07:433
23496879944,0cyclictest0-21swapper/311:00:233
23496879944,0cyclictest0-21swapper/309:35:033
23496879943,1cyclictest0-21swapper/308:55:003
23496879943,0cyclictest0-21swapper/311:10:153
14039840,3rtkit-daemon766-21snmpd11:25:570
14039840,2rtkit-daemon766-21snmpd12:22:531
14039840,2rtkit-daemon418-21systemd-journal08:44:551
14039840,1rtkit-daemon606-21avahi-daemon10:52:230
14039840,1rtkit-daemon0-21swapper/007:05:120
2473874230,1sleep12473900-21apt-get12:10:131
2469679230,1sleep12469705-21apt-get12:00:131
2450039232,1sleep02432900-21kworker/0:0+events11:11:120
2382172230,1sleep02382200-21apt-get08:30:100
2347932231,1sleep10-21swapper/107:05:111
14039830,2rtkit-daemon691-21gmain08:27:371
14039830,2rtkit-daemon2351625-21munin-node11:40:200
14039830,2rtkit-daemon1-21systemd10:01:240
14039830,2rtkit-daemon1-21systemd08:05:141
14039830,1rtkit-daemon772-21lldpd11:51:340
14039830,1rtkit-daemon769-21ntpd11:01:480
14039830,1rtkit-daemon766-21snmpd10:45:110
14039830,1rtkit-daemon766-21snmpd10:10:250
14039830,1rtkit-daemon766-21snmpd09:30:360
14039830,1rtkit-daemon691-21gmain10:06:330
14039830,1rtkit-daemon622-21wpa_supplicant12:39:321
14039830,1rtkit-daemon622-21wpa_supplicant10:37:170
14039830,1rtkit-daemon622-21wpa_supplicant07:16:560
14039830,1rtkit-daemon328-21plymouthd12:16:101
14039830,1rtkit-daemon328-21plymouthd12:05:170
14039830,1rtkit-daemon328-21plymouthd11:20:330
14039830,1rtkit-daemon328-21plymouthd11:20:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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