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2026-04-12 - 12:09
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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 Sun Apr 12, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228272284258,17sleep20-21swapper/219:08:062
226862273241,21sleep10-21swapper/119:06:321
229492266234,19sleep00-21swapper/019:09:410
226252261230,21sleep30-21swapper/319:05:463
44652680,0sleep10-21swapper/121:43:561
215002590,0sleep20-21swapper/223:11:592
324362580,0sleep30-21swapper/322:40:093
301912550,0sleep20-21swapper/222:38:362
215442550,0sleep00-21swapper/023:12:010
46432540,0sleep00-21swapper/022:23:120
11072200,0sleep20-21swapper/221:41:212
301882190,0sleep00-21swapper/021:20:130
241102190,0sleep10-21swapper/121:15:531
101402180,0sleep20-21swapper/222:45:202
243232170,0sleep30-21swapper/321:16:033
129582170,1sleep10-21swapper/100:05:201
28352140,0sleep00-21swapper/022:02:140
316232110,3sleep122-21ksoftirqd/122:39:431
6774290,0sleep20-21swapper/223:22:562
30372290,0sleep30-21swapper/322:58:033
28832290,0sleep20-21swapper/220:30:222
230909990,8cyclictest21024-21ssh21:53:590
3359280,0sleep20-21swapper/219:35:122
25263280,0sleep20-21swapper/223:54:072
25263280,0sleep20-21swapper/223:54:072
231029983,3cyclictest275-21systemd-journal22:11:503
230979984,3cyclictest22744-21ntpq21:15:182
230979982,3cyclictest1499-21munin-run20:45:002
230949980,7cyclictest14556-21grep20:00:131
230909983,4cyclictest0-21swapper/021:35:110
28678270,0sleep30-21swapper/322:18:073
231029974,2cyclictest145512sleep321:50:133
231029973,3cyclictest275-21systemd-journal20:11:583
231029972,1cyclictest0-21swapper/323:49:463
231029970,7cyclictest0-21swapper/323:27:333
231029970,3cyclictest32352-21grep19:25:213
230979973,3cyclictest658-21snmpd20:52:332
230979973,3cyclictest18270-21awk20:10:012
230979971,4cyclictest22375-21idleruntime-cro21:55:012
230949974,2cyclictest275-21systemd-journal00:14:531
230949973,3cyclictest658-21snmpd23:17:441
230949973,3cyclictest504-21dbus-daemon21:25:001
230949973,2cyclictest658-21snmpd21:12:341
230909973,3cyclictest16919-21apt-get22:50:120
230909970,6cyclictest23774-21dump-pmu-power22:35:000
7134260,0sleep00-21swapper/022:44:260
31288260,0sleep00-21swapper/023:37:480
231029966,0cyclictest0-21swapper/322:36:193
231029964,1cyclictest20124-21grep00:10:133
231029963,2cyclictest658-21snmpd20:34:023
231029963,2cyclictest5951-21systemd-udevd20:51:423
231029963,2cyclictest5344-21sh23:41:253
231029963,2cyclictest4128-21taskset22:22:483
231029963,2cyclictest31051-21ssh00:16:333
231029963,2cyclictest27397-21sh21:57:343
231029963,2cyclictest24225-21sh21:35:333
231029963,2cyclictest21481-21ssh23:51:113
231029963,2cyclictest21481-21ssh23:51:113
231029963,2cyclictest14321-21sh00:25:543
231029963,1cyclictest0-21swapper/321:46:163
231029963,1cyclictest0-21swapper/321:30:283
231029962,3cyclictest8788-21wc22:45:133
231029962,3cyclictest8386-21sed22:25:133
231029962,3cyclictest658-21snmpd22:54:553
231029962,3cyclictest658-21snmpd21:25:493
231029962,3cyclictest658-21snmpd21:07:303
231029962,3cyclictest658-21snmpd20:45:033
231029962,3cyclictest658-21snmpd20:39:213
231029962,3cyclictest658-21snmpd20:27:533
231029962,3cyclictest658-21snmpd19:43:463
231029962,3cyclictest658-21snmpd19:18:073
231029962,3cyclictest504-21dbus-daemon19:50:013
231029962,3cyclictest491-21systemd-logind23:23:223
231029962,3cyclictest30452-21sshd23:17:333
231029962,3cyclictest275-21systemd-journal19:35:013
231029962,3cyclictest27516-21cat23:55:143
231029962,3cyclictest1569-21expr23:00:133
231029962,3cyclictest12511-21cat19:55:163
231029962,1cyclictest0-21swapper/321:40:113
231029962,1cyclictest0-21swapper/321:13:203
231029962,1cyclictest0-21swapper/300:01:083
231029961,4cyclictest0-21swapper/323:30:123
231029961,3cyclictest275-21systemd-journal00:30:543
231029960,6cyclictest0-21swapper/323:38:593
231029960,6cyclictest0-21swapper/322:33:483
231029960,6cyclictest0-21swapper/300:35:453
231029960,6cyclictest0-21swapper/300:22:313
231029960,0cyclictest0-21swapper/300:08:133
230979966,0cyclictest0-21swapper/221:55:142
230979966,0cyclictest0-21swapper/200:26:332
230979965,1cyclictest0-21swapper/221:31:172
230979963,2cyclictest674-21lldpd22:13:322
230979963,2cyclictest504-21dbus-daemon19:15:142
230979963,2cyclictest4049-21rm23:01:082
230979963,2cyclictest3601-21chrt20:48:482
230979963,2cyclictest32524-21ssh21:21:022
230979963,2cyclictest30088-21ssh23:36:522
230979963,2cyclictest28334-21cut23:55:192
230979963,2cyclictest24176-21taskset21:35:302
230979963,2cyclictest22163-21ssh00:30:362
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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