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2023-03-27 - 12:50

x86 Intel Core i7-3770K @3500 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -a4-7 -p99 -i200 -h400 -t4 -q
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 rack0slot2.osadl.org (updated Mon Mar 27, 2023 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
400339099150,14cyclictest1696195-21snmpd20:40:437
400339099130,12cyclictest1696195-21snmpd23:17:187
400339099120,11cyclictest219454-21cat22:40:097
400339099110,2cyclictest918-21lldpd22:00:437
400339099110,1cyclictest4029673-21grep19:14:537
400338999110,11cyclictest0-21swapper/623:48:066
400338999110,11cyclictest0-21swapper/619:53:496
400337599110,11cyclictest0-21swapper/420:57:384
400337599110,11cyclictest0-21swapper/419:21:474
4003390991010,0cyclictest0-21swapper/721:16:147
400339099100,9cyclictest4098181-21kthreadcore20:00:127
400339099100,9cyclictest4028828-21munin-run19:09:547
400339099100,9cyclictest350840-21/usr/sbin/munin23:45:187
400339099100,9cyclictest16626-21cat20:55:127
400339099100,9cyclictest126967-21/usr/sbin/munin21:55:167
400339099100,1cyclictest918-21lldpd22:36:587
4003389991010,0cyclictest0-21swapper/619:21:026
400338199100,10cyclictest0-21swapper/523:46:095
4003375991010,0cyclictest0-21swapper/422:42:574
4003375991010,0cyclictest0-21swapper/422:03:414
4003375991010,0cyclictest0-21swapper/420:04:394
400337599100,10cyclictest0-21swapper/419:14:504
40033909990,8cyclictest1696195-21snmpd21:23:397
40033909990,8cyclictest1696195-21snmpd19:50:257
40033899994,5cyclictest0-21swapper/621:19:436
40033759999,0cyclictest0-21swapper/421:23:294
40033909980,6cyclictest431696-21munin-run00:24:537
40033909980,2cyclictest918-21lldpd19:22:127
40033909980,1cyclictest4115153-21munin-run20:09:537
40033909980,1cyclictest340358-21latency_hist23:39:537
40033899988,0cyclictest0-21swapper/622:34:576
40033899988,0cyclictest0-21swapper/622:02:006
40033899988,0cyclictest0-21swapper/620:03:266
40033899988,0cyclictest0-21swapper/619:13:286
40033899974,3cyclictest0-21swapper/621:24:406
40033819977,0cyclictest0-21swapper/520:44:515
40033819977,0cyclictest0-21swapper/519:22:245
40033909960,5cyclictest75966-21sed21:29:537
40033909960,4cyclictest94014-21systemd-journal19:29:537
40033909960,3cyclictest94014-21systemd-journal23:24:537
40033909960,3cyclictest94014-21systemd-journal22:59:537
40033909960,3cyclictest94014-21systemd-journal22:14:547
40033909960,3cyclictest94014-21systemd-journal22:09:537
40033909960,3cyclictest94014-21systemd-journal22:09:537
40033909960,3cyclictest94014-21systemd-journal21:44:537
40033909960,3cyclictest94014-21systemd-journal21:39:537
40033909960,3cyclictest94014-21systemd-journal21:04:537
40033909960,3cyclictest94014-21systemd-journal20:34:547
40033909960,3cyclictest94014-21systemd-journal20:29:547
40033909960,3cyclictest94014-21systemd-journal19:44:547
40033909960,3cyclictest94014-21systemd-journal19:04:547
40033909960,3cyclictest94014-21systemd-journal00:19:527
40033909960,3cyclictest350456-40awk23:44:537
40033909960,2cyclictest94014-21systemd-journal22:19:537
40033899966,0cyclictest0-21swapper/620:56:536
40033899960,6cyclictest0-21swapper/621:55:206
40033819966,0cyclictest0-21swapper/522:44:025
40033819966,0cyclictest0-21swapper/520:03:425
40033819961,5cyclictest13150irq/27-ahci[00021:09:545
40033759966,0cyclictest0-21swapper/421:59:074
40033909950,4cyclictest4094979-21cat19:59:547
40033909950,4cyclictest4063318-21sed19:39:547
40033909950,4cyclictest4002915-21latency_hist18:54:557
40033909950,4cyclictest391195-21cat00:04:537
40033909950,4cyclictest330353-21date23:34:547
40033909950,4cyclictest2961-21cut20:49:537
40033909950,3cyclictest38314-10wireplumber23:54:537
40033909950,2cyclictest94014-21systemd-journal23:09:537
40033909950,2cyclictest94014-21systemd-journal23:04:537
40033909950,2cyclictest94014-21systemd-journal22:54:537
40033909950,2cyclictest94014-21systemd-journal22:49:537
40033909950,2cyclictest94014-21systemd-journal22:49:537
40033909950,2cyclictest94014-21systemd-journal22:34:537
40033909950,2cyclictest94014-21systemd-journal22:29:537
40033909950,2cyclictest94014-21systemd-journal22:24:537
40033909950,2cyclictest94014-21systemd-journal21:49:547
40033909950,2cyclictest94014-21systemd-journal21:34:547
40033909950,2cyclictest94014-21systemd-journal21:14:537
40033909950,2cyclictest94014-21systemd-journal20:39:537
40033909950,2cyclictest94014-21systemd-journal20:24:537
40033909950,2cyclictest94014-21systemd-journal20:14:537
40033909950,2cyclictest94014-21systemd-journal19:49:547
40033909950,2cyclictest94014-21systemd-journal19:34:547
40033909950,2cyclictest94014-21systemd-journal18:59:547
40033909950,2cyclictest94014-21systemd-journal00:14:537
40033909950,2cyclictest94014-21systemd-journal00:09:537
40033909950,2cyclictest38314-10wireplumber23:29:537
40033899950,5cyclictest0-21swapper/623:39:536
40033899950,5cyclictest0-21swapper/623:29:536
40033899950,5cyclictest0-21swapper/623:24:536
40033899950,5cyclictest0-21swapper/623:14:536
40033899950,5cyclictest0-21swapper/623:14:536
40033899950,5cyclictest0-21swapper/623:09:536
40033899950,5cyclictest0-21swapper/623:04:536
40033899950,5cyclictest0-21swapper/622:59:536
40033899950,5cyclictest0-21swapper/622:54:546
40033899950,5cyclictest0-21swapper/622:39:546
40033899950,5cyclictest0-21swapper/622:24:536
40033899950,5cyclictest0-21swapper/622:19:536
40033899950,5cyclictest0-21swapper/622:09:536
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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