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2026-08-01 - 12:05
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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 Sat Aug 01, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
317732306281,16sleep20-21swapper/219:06:422
319042283252,20sleep10-21swapper/119:08:211
319942265238,18sleep30-21swapper/319:09:323
317762256224,22sleep00-21swapper/019:06:450
202432620,0sleep20-21swapper/222:25:192
91352600,0sleep20-21swapper/221:20:192
36402600,0sleep10-21swapper/122:35:161
96282580,0sleep20-21swapper/222:59:072
76842550,0sleep20-21swapper/222:18:262
25612550,0sleep30-21swapper/321:16:243
7662440,0sleep10-21swapper/123:52:031
291802170,0sleep00-21swapper/000:10:070
68952160,0sleep10-21swapper/122:17:491
233372160,0sleep00-21swapper/022:08:270
160362160,0sleep00-21swapper/023:22:030
185332150,0sleep10-21swapper/123:24:011
322402140,0sleep10-21swapper/121:54:231
318752140,0sleep20-21swapper/223:11:592
166012130,0sleep10-21swapper/122:43:281
148892130,0sleep00-21swapper/000:38:510
3214199115,4cyclictest275-21systemd-journal21:47:563
256312110,1sleep012-21ksoftirqd/021:10:320
185782100,0sleep00-21swapper/000:22:060
18533290,3sleep012-21ksoftirqd/021:26:020
321419985,2cyclictest14040-21systemd-udevd20:47:273
321389984,1cyclictest621-21munin-run21:55:012
321339986,1cyclictest22-21ksoftirqd/121:45:021
27336280,0chrt0-21swapper/123:29:291
22019280,0sleep30-21swapper/323:05:453
4402270,0sleep30-21swapper/321:56:343
321419973,3cyclictest658-21snmpd23:04:423
321419973,3cyclictest658-21snmpd19:41:463
321419973,3cyclictest28186-21find23:30:003
321419973,3cyclictest275-21systemd-journal00:18:203
321419970,0cyclictest50850irq/136-enp4s0-21:53:423
321389974,2cyclictest16961-21ntp_states21:25:152
321389973,3cyclictest658-21snmpd21:48:492
321389973,1cyclictest0-21swapper/221:35:162
321389970,1cyclictest3307-21ssh00:31:492
321339976,1cyclictest22-21ksoftirqd/100:30:001
321339975,1cyclictest5609-21apt-get00:15:101
321339975,1cyclictest22-21ksoftirqd/123:00:001
321339973,3cyclictest275-21systemd-journal22:52:431
321339973,3cyclictest275-21systemd-journal21:35:251
321339970,4cyclictest21493-21munin-run00:05:001
321339970,1cyclictest13170-21ssh21:23:141
321299973,3cyclictest275-21systemd-journal22:36:480
321299973,3cyclictest275-21systemd-journal21:16:330
321299973,2cyclictest275-21systemd-journal22:04:330
321299970,4cyclictest13901-21turbostat00:20:010
29676270,1sleep132123-21cyclictest21:33:041
21252270,0sleep30-21swapper/300:24:013
321419966,0cyclictest0-21swapper/321:25:123
321419964,1cyclictest29845-21grep23:50:143
321419964,1cyclictest13677-21df00:00:133
321419963,2cyclictest6879-21ssh22:37:153
321419963,2cyclictest658-21snmpd23:37:213
321419963,2cyclictest658-21snmpd20:01:473
321419963,2cyclictest504-21dbus-daemon20:22:483
321419963,2cyclictest504-21dbus-daemon20:22:483
321419963,2cyclictest492-21hwlatdetect19:10:143
321419963,2cyclictest29152-21grep23:10:193
321419963,2cyclictest27155-21sh22:50:083
321419963,2cyclictest24240-21ntp_states00:25:183
321419963,2cyclictest21682-21sh22:46:023
321419963,2cyclictest13403-21ssh22:40:573
321419963,1cyclictest0-21swapper/323:40:303
321419963,1cyclictest0-21swapper/322:03:523
321419963,1cyclictest0-21swapper/321:41:413
321419962,3cyclictest930-21cat21:35:143
321419962,3cyclictest658-21snmpd23:48:273
321419962,3cyclictest658-21snmpd23:30:093
321419962,3cyclictest658-21snmpd23:16:303
321419962,3cyclictest658-21snmpd22:05:103
321419962,3cyclictest658-21snmpd21:05:593
321419962,3cyclictest658-21snmpd21:04:533
321419962,3cyclictest658-21snmpd20:58:593
321419962,3cyclictest658-21snmpd20:11:033
321419962,3cyclictest658-21snmpd20:07:063
321419962,3cyclictest658-21snmpd19:59:263
321419962,3cyclictest658-21snmpd19:47:583
321419962,3cyclictest658-21snmpd19:18:053
321419962,3cyclictest658-21snmpd00:33:353
321419962,3cyclictest6545-21ntpq20:30:173
321419962,3cyclictest6055-21wc19:20:173
321419962,3cyclictest275-21systemd-journal20:51:273
321419962,3cyclictest275-21systemd-journal20:42:273
321419962,3cyclictest275-21systemd-journal19:39:513
321419962,3cyclictest19019-21cat22:25:133
321419962,3cyclictest10866-21date23:00:013
321419962,3cyclictest0-21swapper/323:21:093
321419962,1cyclictest0-21swapper/322:24:123
321419962,1cyclictest0-21swapper/322:24:123
321419961,4cyclictest7985-21tr20:35:143
321419961,3cyclictest275-21systemd-journal20:26:243
321419961,2cyclictest7915-21ssh21:20:133
321419960,6cyclictest0-21swapper/322:32:193
321419960,6cyclictest0-21swapper/300:11:123
321419960,5cyclictest24431-21apt-get21:30:113
321389964,1cyclictest19471-21fw_packets21:00:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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