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2024-07-16 - 08:23
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Mon Jul 15, 2024 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38362312277,22sleep20-21swapper/207:09:472
36612275241,22sleep10-21swapper/107:07:361
36302267234,20sleep30-21swapper/307:07:143
37022255222,21sleep00-21swapper/007:08:080
110562600,1sleep2271rcuc/210:27:432
122422550,0sleep00-21swapper/007:20:290
211402530,0sleep20-21swapper/212:35:002
215162520,0sleep10-21swapper/111:07:421
169692200,0sleep30-21swapper/310:03:183
195062160,0sleep10-21swapper/109:33:511
396399129,2cyclictest12-21ksoftirqd/009:10:000
396999105,3cyclictest19982-21systemd-journal10:33:532
39749994,3cyclictest19982-21systemd-journal08:21:463
39699992,4cyclictest14926-21perf07:30:012
39659994,3cyclictest19982-21systemd-journal09:58:011
39659994,3cyclictest19982-21systemd-journal09:20:011
39639994,3cyclictest19982-21systemd-journal12:15:160
39639994,3cyclictest19982-21systemd-journal07:10:190
39749983,3cyclictest19982-21systemd-journal11:15:533
39749983,3cyclictest19982-21systemd-journal10:45:593
39749983,3cyclictest19982-21systemd-journal08:37:193
39699983,3cyclictest7661-21lldpd08:22:552
39699983,3cyclictest19982-21systemd-journal07:11:572
39699982,3cyclictest26158-21dump-pmu-power07:55:002
39699980,7cyclictest15593-21ssh11:02:102
39659984,3cyclictest508-21dbus-daemon07:14:541
39659983,3cyclictest4872-21apt-get08:20:001
39659983,3cyclictest19982-21systemd-journal09:50:061
39659983,3cyclictest19982-21systemd-journal08:29:591
39639984,3cyclictest19982-21systemd-journal10:46:450
39639980,7cyclictest29985-21ssh09:44:280
39639980,7cyclictest0-21swapper/009:25:280
18947280,0sleep10-21swapper/112:32:361
39749974,2cyclictest29741-11brltty12:16:563
39749974,2cyclictest11736-21in:imuxsock10:58:063
39749974,2cyclictest11736-21in:imuxsock09:59:163
39749973,3cyclictest7656-21snmpd11:34:143
39749973,3cyclictest7656-21snmpd07:51:073
39749973,3cyclictest7656-21snmpd07:44:173
39749973,3cyclictest508-21dbus-daemon08:03:423
39749973,3cyclictest19982-21systemd-journal12:10:013
39749973,3cyclictest19982-21systemd-journal11:40:143
39749973,3cyclictest19982-21systemd-journal10:31:123
39749973,3cyclictest19982-21systemd-journal10:10:023
39749973,3cyclictest19982-21systemd-journal07:12:283
39749973,3cyclictest17198-21hddtemp_smartct08:45:153
39749973,3cyclictest17198-21hddtemp_smartct08:45:153
39749973,1cyclictest0-21swapper/311:25:063
39749973,1cyclictest0-21swapper/310:38:103
39749972,3cyclictest19982-21systemd-journal12:03:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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