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2026-06-18 - 12:17
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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 18, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215222304274,19sleep20-21swapper/219:08:122
216372274211,21sleep10-21swapper/119:09:401
214422269238,21sleep00-21swapper/019:07:090
216622260230,20sleep30-21swapper/319:09:583
194712640,0sleep30-21swapper/323:10:143
28022630,0sleep30-21swapper/300:17:533
313292620,0sleep30-21swapper/322:57:493
51302600,0sleep00-21swapper/021:25:110
13292590,0sleep30-21swapper/321:22:343
193312580,0sleep10-21swapper/100:08:381
172682580,0sleep30-21swapper/322:50:003
308732550,0sleep10-21swapper/121:20:241
293682550,0sleep00-21swapper/021:39:530
284402540,0sleep00-21swapper/022:36:270
283482540,0sleep20-21swapper/219:20:212
188122540,0sleep30-21swapper/323:29:483
167242540,0sleep30-21swapper/321:12:213
162742540,0sleep30-21swapper/320:05:183
293332520,0sleep00-21swapper/022:18:010
63832200,0sleep00-21swapper/022:43:000
29692150,0sleep20-21swapper/222:21:162
190462150,0sleep20-21swapper/223:49:132
308992140,0sleep10-21swapper/121:59:531
161322140,0sleep20-21swapper/220:05:172
209432130,0sleep30-21swapper/300:09:523
207152120,0sleep30-21swapper/323:50:063
67982110,1sleep20-21swapper/222:04:502
2178699119,2cyclictest34-21ksoftirqd/320:00:013
21786991110,1cyclictest34-21ksoftirqd/300:40:013
161732100,0sleep10-21swapper/123:27:461
8926290,0chrt34-21ksoftirqd/323:04:053
317290,0sleep00-21swapper/022:20:140
217749998,1cyclictest12-21ksoftirqd/022:55:010
217749994,3cyclictest275-21systemd-journal20:45:440
217869987,1cyclictest34-21ksoftirqd/321:40:013
217869986,1cyclictest34-21ksoftirqd/300:00:003
217819982,4cyclictest30307-21sh20:40:012
217789986,1cyclictest22-21ksoftirqd/122:15:011
217749987,1cyclictest12-21ksoftirqd/023:50:000
217749982,3cyclictest22180-21munin-run00:30:000
19514280,0sleep00-21swapper/022:31:150
10652280,1sleep20-21swapper/200:22:322
217869974,2cyclictest658-21snmpd00:33:143
217869974,2cyclictest275-21systemd-journal21:25:363
217869973,3cyclictest275-21systemd-journal22:06:033
217869973,3cyclictest17931-21smart_sda22:30:193
217819974,2cyclictest28-21ksoftirqd/220:50:012
217819973,3cyclictest275-21systemd-journal20:40:312
217819973,3cyclictest275-21systemd-journal20:15:012
217819973,2cyclictest275-21systemd-journal22:10:392
217789976,1cyclictest22-21ksoftirqd/119:20:011
217789973,3cyclictest658-21snmpd21:45:541
217789973,3cyclictest275-21systemd-journal00:38:311
217789972,3cyclictest31956-21munin-run22:20:011
217789972,2cyclictest24448-21dump-pmu-power22:35:011
217789971,4cyclictest275-21systemd-journal20:00:011
217749975,1cyclictest32727-21ssh00:35:280
217749975,1cyclictest12-21ksoftirqd/023:40:000
217749974,2cyclictest275-21systemd-journal00:05:010
217749973,3cyclictest275-21systemd-journal21:15:560
217749973,3cyclictest1-21systemd19:58:470
217749971,2cyclictest9331-21awk21:05:010
17275270,0sleep00-21swapper/021:32:000
1123270,0sleep30-21swapper/320:45:143
29456260,1sleep329480-21ssh22:37:163
27073260,0sleep20-21swapper/223:15:092
217869963,2cyclictest7102-21ssh00:00:343
217869963,2cyclictest658-21snmpd21:49:553
217869963,2cyclictest30724-21sed19:25:193
217869963,2cyclictest29272-21ssh23:15:383
217869963,2cyclictest275-21systemd-journal23:36:163
217869963,2cyclictest275-21systemd-journal22:45:013
217869963,2cyclictest23938-21sh19:15:003
217869963,2cyclictest22423-21ssh21:54:593
217869963,2cyclictest21424-21rm00:10:033
217869963,2cyclictest17573-21ssh22:50:033
217869962,3cyclictest658-21snmpd23:41:063
217869962,3cyclictest658-21snmpd23:35:003
217869962,3cyclictest658-21snmpd22:29:593
217869962,3cyclictest658-21snmpd22:10:433
217869962,3cyclictest658-21snmpd21:32:573
217869962,3cyclictest658-21snmpd20:55:403
217869962,3cyclictest658-21snmpd20:43:593
217869962,3cyclictest658-21snmpd20:27:493
217869962,3cyclictest658-21snmpd20:27:493
217869962,3cyclictest658-21snmpd20:03:123
217869962,3cyclictest658-21snmpd19:38:573
217869962,3cyclictest553-21cat22:00:183
217869962,3cyclictest21938-21cat20:20:133
217869962,3cyclictest21328-21head21:15:133
217869962,3cyclictest10722-21ls23:05:133
217869962,1cyclictest0-21swapper/323:48:053
217869962,1cyclictest0-21swapper/322:15:253
217869962,1cyclictest0-21swapper/321:40:163
217869961,3cyclictest275-21systemd-journal00:25:003
217869960,2cyclictest23354-21cpuspeed21:55:123
217869960,0cyclictest0-21swapper/322:20:243
217819963,2cyclictest663-21runrttasks00:37:092
217819963,2cyclictest658-21snmpd22:19:232
217819963,2cyclictest658-21snmpd19:51:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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