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2026-05-06 - 06:14
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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 Wed May 06, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171472309278,20sleep10-21swapper/119:09:581
170102307276,20sleep20-21swapper/219:08:152
170082272242,19sleep00-21swapper/019:08:120
170062265233,22sleep30-21swapper/319:08:113
252652620,0sleep00-21swapper/023:15:420
11422590,0sleep20-21swapper/219:45:022
74052580,0sleep20-21swapper/200:03:202
51542560,0sleep20-21swapper/222:05:522
53492550,0sleep10-21swapper/100:01:471
144362540,0sleep30-21swapper/322:11:333
60602530,0sleep20-21swapper/221:28:192
59652200,0sleep20-21swapper/223:24:162
59652200,0sleep20-21swapper/223:24:162
48352190,0sleep10-21swapper/123:04:291
189972180,0sleep30-21swapper/321:35:293
66642170,0sleep30-21swapper/323:43:563
305772170,0sleep330583-21gltestperf23:00:153
38432140,0sleep00-21swapper/021:26:380
165772130,0sleep00-21swapper/020:15:190
1725099121,4cyclictest0-21swapper/221:56:302
137712120,0sleep30-21swapper/321:32:523
1725099110,3cyclictest275-21systemd-journal20:05:002
123492110,0sleep20-21swapper/200:05:442
1725099102,2cyclictest1-21systemd22:50:012
1725099102,1cyclictest0-21swapper/223:13:572
1725099100,3cyclictest5543-21cron23:05:002
1725099100,3cyclictest275-21systemd-journal23:35:012
1725099100,3cyclictest275-21systemd-journal20:40:012
20706291,4sleep334-21ksoftirqd/321:17:283
172549996,2cyclictest658-21snmpd21:11:103
172509992,2cyclictest9088-21cron21:50:022
172509992,2cyclictest658-21snmpd20:54:482
172509992,2cyclictest658-21snmpd19:50:262
172509992,2cyclictest658-21snmpd19:26:432
172509992,2cyclictest29871-21cat20:45:202
172509992,2cyclictest21521-21swap19:15:202
172509992,2cyclictest17058-21date21:15:152
172509992,2cyclictest14100-21rm21:52:312
172509992,2cyclictest14080-21sed22:50:172
172509992,2cyclictest11376-21ssh23:46:092
172509990,3cyclictest275-21systemd-journal23:51:042
172509990,3cyclictest275-21systemd-journal22:36:232
172509990,3cyclictest2287-21munin-run00:20:002
172509990,2cyclictest28959-21idleruntime-cro19:35:012
172549986,1cyclictest34-21ksoftirqd/300:00:003
172549985,2cyclictest658-21snmpd00:13:093
172509982,2cyclictest6632-21sh22:26:132
172509982,2cyclictest658-21snmpd22:41:292
172509982,2cyclictest658-21snmpd19:49:002
172509982,2cyclictest28777-21cat00:35:162
172509982,2cyclictest22284-21cat22:55:152
172509982,2cyclictest13307-21expr20:10:132
172509982,2cyclictest10480-21ssh23:07:092
172509982,1cyclictest0-21swapper/221:31:552
172509982,1cyclictest0-21swapper/220:26:272
172509981,3cyclictest0-21swapper/200:29:252
172509981,2cyclictest17705-21expr19:10:142
172509981,2cyclictest12788-21cat22:30:152
172509981,2cyclictest11235-21sort22:10:132
172509980,4cyclictest30521-21ssh22:21:042
172509980,3cyclictest28464-21ssh23:37:152
172509980,3cyclictest275-21systemd-journal00:14:552
172509980,2cyclictest3902-21sshd23:41:502
172509980,2cyclictest304-21systemd-udevd21:35:252
172509980,2cyclictest275-21systemd-journal21:04:552
172509980,2cyclictest27358-21sed22:00:182
172509980,2cyclictest23369-21sshd00:31:572
172459983,3cyclictest275-21systemd-journal00:20:011
13697280,0sleep10-21swapper/100:25:581
3819270,0sleep00-21swapper/021:00:150
172549975,2cyclictest34-21ksoftirqd/319:55:013
172549975,1cyclictest34-21ksoftirqd/319:40:013
172549974,2cyclictest994-21cron19:45:013
172549973,3cyclictest658-21snmpd21:41:433
172549973,3cyclictest275-21systemd-journal00:33:403
172549973,3cyclictest24171-21awk23:15:183
172549973,1cyclictest0-21swapper/323:09:023
172509972,4cyclictest0-21swapper/221:20:162
172509972,1cyclictest663-21runrttasks19:22:232
172509972,1cyclictest27715-21sh23:55:492
172509971,2cyclictest658-21snmpd21:40:142
172509970,3cyclictest29997-21ssh23:19:172
172509970,3cyclictest23736-21ssh22:17:152
172509970,2cyclictest275-21systemd-journal21:11:582
172509970,2cyclictest275-21systemd-journal20:08:382
172459976,1cyclictest22-21ksoftirqd/119:55:001
172459976,1cyclictest22-21ksoftirqd/119:30:021
172459975,1cyclictest27747-21/usr/sbin/munin22:00:191
172459973,3cyclictest658-21snmpd23:24:171
172459973,3cyclictest658-21snmpd23:24:171
172459973,3cyclictest658-21snmpd22:06:211
172459973,3cyclictest504-21dbus-daemon21:55:001
172459973,3cyclictest275-21systemd-journal23:13:401
172459973,3cyclictest275-21systemd-journal22:34:171
172459973,3cyclictest275-21systemd-journal22:18:511
172419974,2cyclictest28338-21cron20:45:000
172419973,3cyclictest275-21systemd-journal20:47:220
172419972,4cyclictest0-21swapper/022:05:130
172419972,3cyclictest504-21dbus-daemon23:40:000
172419971,4cyclictest275-21systemd-journal20:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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