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2026-06-25 - 14:00
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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 rackaslot8.osadl.org (updated Thu Jun 25, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166072305278,17sleep20-21swapper/219:07:262
165162296265,21sleep10-21swapper/119:06:161
166582264212,17sleep30-21swapper/319:08:033
167362263231,21sleep00-21swapper/019:09:010
308092620,0sleep00-21swapper/000:18:290
235832620,0sleep10-21swapper/122:56:241
159552600,0sleep30-21swapper/322:32:363
320422590,0sleep20-21swapper/221:24:472
295422550,0sleep00-21swapper/022:01:260
49012530,0sleep20-21swapper/222:25:262
223732210,0sleep00-21swapper/020:30:210
172612210,0sleep10-21swapper/120:20:161
135122200,0sleep10-21swapper/100:27:151
320652180,0sleep30-21swapper/322:42:133
273892180,0sleep30-21swapper/323:18:293
212222180,0sleep20-21swapper/221:37:122
175802180,0sleep10-21swapper/121:15:211
270992170,0sleep10-21swapper/121:40:211
192432170,0sleep30-21swapper/323:32:423
51102160,1sleep00-21swapper/021:46:520
43792160,0sleep10-21swapper/100:21:371
82232140,0sleep316927-21cyclictest22:27:593
172622140,0sleep30-21swapper/300:30:003
107962140,0sleep00-21swapper/021:11:440
289102130,0sleep10-21swapper/122:20:211
281722130,0sleep00-21swapper/020:45:130
1694299120,4cyclictest30675-21fschecks_time20:50:132
1694299113,3cyclictest28098-21seq23:19:022
1693799100,9cyclictest2892-21ls19:50:011
29556290,0sleep10-21swapper/122:40:191
169429993,2cyclictest10054-21cat00:25:142
169429993,1cyclictest0-21swapper/221:15:012
169429992,2cyclictest658-21snmpd19:40:492
169349991,1cyclictest0-21swapper/023:15:020
30482280,0sleep20-21swapper/222:41:012
23077280,0sleep30-21swapper/321:57:533
17142280,0sleep00-21swapper/023:12:140
169429982,3cyclictest275-21systemd-journal22:47:562
169379980,7cyclictest15950-21ssh22:13:051
169349984,3cyclictest560-21gdbus23:10:020
169349983,3cyclictest275-21systemd-journal21:08:110
169349983,3cyclictest275-21systemd-journal21:08:110
169349980,5cyclictest16101-21dump-pmu-power00:10:000
16217280,0sleep10-21swapper/100:10:001
31962270,0sleep20-21swapper/221:44:032
169469974,2cyclictest34-21ksoftirqd/321:10:013
169469974,2cyclictest34-21ksoftirqd/321:10:013
169469973,3cyclictest8546-21ntpq20:00:163
169469973,1cyclictest0-21swapper/322:54:283
169469970,3cyclictest23562-21/usr/sbin/munin23:55:093
169429974,2cyclictest275-21systemd-journal23:25:412
169429974,2cyclictest275-21systemd-journal21:14:422
169429970,4cyclictest7332-21munin-run20:00:012
169379976,1cyclictest0-21swapper/121:13:461
169379973,3cyclictest560-21gdbus20:15:001
169379973,2cyclictest275-21systemd-journal23:21:421
169379973,2cyclictest0-21swapper/123:15:031
169379972,3cyclictest275-21systemd-journal20:50:011
169379971,6cyclictest10024-21kworker/u8:222:53:151
169349973,3cyclictest658-21snmpd20:05:400
169349973,3cyclictest20426-21apt-get22:55:110
169349973,3cyclictest11292-21sed22:10:160
169349973,2cyclictest674-21lldpd00:40:000
169349973,2cyclictest275-21systemd-journal21:15:170
169349972,3cyclictest275-21systemd-journal22:40:010
169349970,7cyclictest0-21swapper/019:55:170
13261270,0sleep30-21swapper/322:11:023
169469966,0cyclictest0-21swapper/321:25:253
169469965,1cyclictest34-21ksoftirqd/321:00:003
169469963,2cyclictest9027-21ssh22:09:113
169469963,2cyclictest8627-21cat00:05:133
169469963,2cyclictest658-21snmpd22:01:573
169469963,2cyclictest5521-21taskset23:44:133
169469963,2cyclictest4365-21smart_sda19:50:193
169469963,2cyclictest32142-21ssh00:19:283
169469963,2cyclictest30535-21ssh22:21:343
169469963,2cyclictest29956-21ssh00:37:073
169469963,2cyclictest29573-21cat19:35:163
169469963,2cyclictest275-21systemd-journal21:01:423
169469963,2cyclictest25298-21sh00:34:543
169469963,2cyclictest17441-21ssh23:50:383
169469963,2cyclictest16372-21sh00:10:023
169469963,1cyclictest0-21swapper/323:22:243
169469962,3cyclictest658-21snmpd22:57:113
169469962,3cyclictest658-21snmpd21:52:503
169469962,3cyclictest658-21snmpd20:22:473
169469962,3cyclictest658-21snmpd20:14:243
169469962,3cyclictest658-21snmpd20:05:073
169469962,3cyclictest658-21snmpd19:32:073
169469962,3cyclictest658-21snmpd19:24:013
169469962,3cyclictest569-21gdbus00:01:183
169469962,3cyclictest504-21dbus-daemon21:15:173
169469962,3cyclictest504-21dbus-daemon19:20:013
169469962,3cyclictest30385-21cat20:50:123
169469962,3cyclictest29172-21expr23:00:143
169469962,3cyclictest275-21systemd-journal20:46:053
169469962,3cyclictest275-21systemd-journal00:24:133
169469962,3cyclictest23880-21cat20:35:143
169469962,3cyclictest17958-21ls21:35:163
169469962,3cyclictest14955-21cat20:15:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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