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2026-04-18 - 03:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 792 highest latencies:
System rack5slot7.osadl.org (updated Sat Apr 18, 2026 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23355224342196,90sleep00-21swapper19:07:070
234409910629,68cyclictest0-21swapper23:17:240
234409910417,46cyclictest4641-21df23:53:170
234409910338,48cyclictest8540-21users22:29:240
234409910316,24cyclictest12187-21users00:14:270
234409910218,43cyclictest24306-21ssh21:42:010
234409910216,46cyclictest11084-21ssh00:12:270
234409910215,23cyclictest15420-21users22:49:240
234409910212,26cyclictest3644-21ssh23:49:370
234409910118,60cyclictest4705-21memory22:18:550
234409910034,49cyclictest0-21swapper21:17:030
234409910017,44cyclictest32211-21memory23:38:560
234409910016,43cyclictest26603-21df_inode21:48:250
234409910015,65cyclictest9865-21memory22:33:590
234409910015,64cyclictest19809-21irqstats21:28:450
234409910015,46cyclictest26982-21irqstats23:23:460
234409910014,23cyclictest11425-21fw_conntrack22:38:340
2344099999,70cyclictest21633-21ssh23:08:240
23440999916,64cyclictest14691-21apt-get00:23:010
23440999912,26cyclictest18715-21ntpq00:34:030
23440999911,25cyclictest24882-21ssh23:18:040
23440999910,26cyclictest32455-21ssh22:04:460
23440999815,44cyclictest28857-21ntp_states23:29:070
23440999815,43cyclictest30055-21df_inode21:58:270
23440999814,46cyclictest30221-21df23:33:160
23440999813,25cyclictest24547-21/usr/sbin/munin21:44:010
23440999810,67cyclictest16390-21ssh00:27:460
23440999726,55cyclictest0-21swapper22:27:100
23440999726,52cyclictest0-21swapper00:05:240
23440999717,45cyclictest27974-21apt-get21:52:490
23440999715,62cyclictest2870-21irqstats22:13:420
23440999715,21cyclictest21471-21fw_conntrack21:33:350
23440999713,67cyclictest17915-21df21:23:180
23440999712,24cyclictest17011-21switchtime22:54:190
23440999710,24cyclictest13964-21ssh00:19:380
2344099969,24cyclictest26278-21cat19:23:160
23440999617,42cyclictest28559-21munin-run19:37:350
23440999616,21cyclictest20197-21memory23:04:000
23440999615,20cyclictest18379-21irqstats22:58:460
23440999613,61cyclictest16278-21df_inode21:18:280
23440999611,64cyclictest886-21egrep22:08:110
23440999534,43cyclictest0-21swapper23:45:320
23440999516,59cyclictest6636-21memory23:58:540
23440999512,61cyclictest7486-21tr20:38:280
23440999416,57cyclictest14363-21munin-run22:47:350
23440999415,40cyclictest24720-21users19:12:540
23440999413,58cyclictest26859-21/usr/sbin/munin19:27:440
23440999411,63cyclictest31417-21grep19:52:560
23440999411,61cyclictest13046-21awk21:09:020
23440999410,22cyclictest9798-21basename20:52:560
23440999337,40cyclictest1448-21unixbench_singl20:03:400
23440999311,23cyclictest1690-21snmpd20:20:470
23440999310,65cyclictest12337-21munin-run21:07:370
23440999211,60cyclictest1690-21snmpd20:08:370
23440999210,60cyclictest11515-21cat21:02:380
23440999112,59cyclictest29842-21df_inode19:43:080
23440999111,24cyclictest5087-21grep20:23:390
23440999016,21cyclictest0-21swapper20:33:260
23440999013,28cyclictest6055-21wc20:32:370
23440999013,28cyclictest1761-21sshd19:37:530
23440998917,27cyclictest30460-21apt-get19:47:520
23440998917,24cyclictest23744-21df19:08:030
23440998910,24cyclictest32646-21wc19:58:200
23440998816,23cyclictest2859-21irqstats20:13:190
23440998717,23cyclictest8343-21memory20:43:230
23440998712,36cyclictest9518-21cat20:48:360
23440998614,24cyclictest25288-21/usr/sbin/munin19:18:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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