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2026-09-16 - 04:31
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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 Sep 16, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73382342316,17sleep20-21swapper/219:09:532
73382342316,17sleep20-21swapper/219:09:532
72892285262,15sleep10-21swapper/119:09:151
72892285262,15sleep10-21swapper/119:09:141
73132263232,21sleep00-21swapper/019:09:350
73132263232,21sleep00-21swapper/019:09:340
72752263228,21sleep30-21swapper/319:09:053
72752263228,21sleep30-21swapper/319:09:053
45832630,0sleep00-21swapper/000:07:490
220752620,0sleep20-21swapper/222:40:422
131362610,0sleep20-21swapper/221:57:122
159072580,0sleep30-21swapper/300:14:593
112482580,0sleep20-21swapper/223:13:492
19952560,0sleep20-21swapper/223:08:092
32102540,0sleep30-21swapper/323:47:343
300712540,0sleep10-21swapper/100:03:531
130912200,0sleep30-21swapper/323:53:423
80062170,0sleep20-21swapper/221:54:402
280102170,0sleep30-21swapper/322:25:173
264582170,1sleep3331rcuc/319:50:013
174682170,0sleep10-21swapper/100:35:121
148952160,0sleep10-21swapper/123:55:001
300652140,0sleep10-21swapper/121:29:121
289482120,0sleep20-21swapper/223:43:522
280722110,0sleep20-21swapper/221:46:522
294952100,0sleep10-21swapper/122:25:591
74719998,1cyclictest34-21ksoftirqd/322:35:013
74639997,1cyclictest2910-21ls20:10:011
74639992,4cyclictest7071-21dump-pmu-power21:35:001
74639992,1cyclictest141rcu_preempt23:25:131
74599994,3cyclictest12841-21apt23:15:010
17945290,0sleep30-21swapper/323:56:033
11363290,0chrt0-21swapper/323:33:123
74669984,2cyclictest14415-21snmpd23:55:132
74669982,3cyclictest275-21systemd-journal19:25:532
74639983,3cyclictest275-21systemd-journal22:08:361
74599983,3cyclictest275-21systemd-journal23:55:550
74599983,3cyclictest275-21systemd-journal19:24:400
74599983,3cyclictest275-21systemd-journal00:17:100
74599980,8cyclictest30036-21diskmemload00:33:120
74599980,7cyclictest8148-21fschecks_time19:10:150
15743280,1sleep1221ksoftirqd/121:59:121
10905280,0sleep30-21swapper/300:30:263
74719976,1cyclictest34-21ksoftirqd/322:00:013
74719975,1cyclictest34-21ksoftirqd/319:35:003
74719974,2cyclictest34-21ksoftirqd/320:30:013
74719974,2cyclictest275-21systemd-journal20:46:123
74719973,3cyclictest15515-21memory20:35:163
74719973,2cyclictest275-21systemd-journal20:05:573
74719972,4cyclictest504-11dbus-daemon21:27:193
74719972,1cyclictest2316050logrotate00:00:013
74669974,2cyclictest639-21ntpq00:05:162
74669974,2cyclictest503-21rs:main2
74669973,3cyclictest275-21systemd-journal20:00:002
74669973,3cyclictest14415-21snmpd21:09:222
74669973,3cyclictest14415-21snmpd21:09:222
74669973,2cyclictest275-21systemd-journal19:40:052
74669972,3cyclictest20228-21munin-run23:00:002
74639976,1cyclictest22-21ksoftirqd/120:55:001
74639973,3cyclictest275-21systemd-journal21:50:001
74639973,3cyclictest275-21systemd-journal21:38:351
74639973,3cyclictest14415-21snmpd21:05:261
74639973,3cyclictest14415-21snmpd21:05:261
74639972,3cyclictest28542-21idleruntime-cro23:05:011
74639972,3cyclictest28542-21idleruntime-cro23:05:011
74639970,3cyclictest275-21systemd-journal19:15:021
74639970,1cyclictest17171-21ssh21:20:461
74639970,1cyclictest0-21swapper/121:14:241
74599974,2cyclictest275-21systemd-journal00:26:160
74599973,3cyclictest14415-21snmpd22:59:570
74599973,3cyclictest14415-21snmpd19:52:260
74599973,1cyclictest0-21swapper/022:02:430
74599972,3cyclictest275-21systemd-journal20:20:060
74599972,1cyclictest32228-21munin-run21:50:010
74599970,4cyclictest21543-21perf19:40:010
4758270,0sleep10-21swapper/121:52:121
10182270,1sleep10-21swapper/123:13:001
74719966,0cyclictest0-21swapper/321:13:303
74719965,1cyclictest34-21ksoftirqd/322:10:003
74719963,2cyclictest7727-21/usr/sbin/munin21:35:153
74719963,2cyclictest767-21awk00:05:173
74719963,2cyclictest6104-21diskstats20:15:123
74719963,2cyclictest504-21dbus-daemon21:16:033
74719963,2cyclictest501-21in:imuxsock21:00:013
74719963,2cyclictest32692-21ssh23:06:493
74719963,2cyclictest22610-21rm22:22:073
74719963,2cyclictest18050-21users00:15:203
74719963,2cyclictest1686-21ssh21:30:543
74719963,2cyclictest16721-21taskset19:26:273
74719963,2cyclictest11357-21ssh22:35:053
74719963,2cyclictest11091-21cut22:15:153
74719963,1cyclictest0-21swapper/323:18:313
74719962,3cyclictest30911-21kworker/3:023:25:133
74719962,3cyclictest25348-21ntp_kernel_pll_21:45:173
74719962,3cyclictest14415-21snmpd23:41:043
74719962,3cyclictest14415-21snmpd23:35:133
74719962,3cyclictest14415-21snmpd22:00:053
74719962,3cyclictest14415-21snmpd21:41:183
74719962,3cyclictest14415-21snmpd20:40:083
74719962,3cyclictest14415-21snmpd19:41:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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