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2026-04-26 - 04:04
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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 Sun Apr 26, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8654224382200,90sleep00-21swapper19:03:450
90689910814,72cyclictest853-21ntp_states00:23:430
9068991029,73cyclictest14056-21cstates23:27:520
90689910216,65cyclictest5095-21munin-run23:02:130
90689910214,24cyclictest5440-21irqstats21:28:220
90689910212,26cyclictest16709-21ssh23:35:140
90689910119,21cyclictest11323-21users23:19:020
90689910118,24cyclictest8014-21ssh23:09:450
90689910118,23cyclictest29771-21memory00:13:300
90689910115,47cyclictest2216-21irqstats22:53:200
90689910115,25cyclictest24255-21df_inode22:23:070
90689910114,67cyclictest30982-21/usr/sbin/munin00:18:190
90689910019,43cyclictest22734-21memory22:18:350
90689910015,64cyclictest15317-21apt-get21:57:350
9068999918,61cyclictest1556-21ssh21:17:240
9068999918,22cyclictest9578-21users23:14:010
9068999917,60cyclictest27905-21fw_conntrack00:08:110
9068999917,60cyclictest21030-21/usr/sbin/munin22:13:370
9068999916,24cyclictest10552-21fw_conntrack21:43:130
9068999911,66cyclictest9286-21ssh21:38:550
9068999817,22cyclictest12354-21df23:22:550
9068999816,61cyclictest4122-21ssh00:33:210
9068999815,24cyclictest26278-21irqstats00:03:270
9068999814,61cyclictest21600-21tr20:17:350
9068999811,47cyclictest19090-21ssh22:08:060
9068999810,24cyclictest22397-21ssh23:52:310
906899979,48cyclictest19620-21grep20:07:140
9068999732,21cyclictest12333-21ssh21:48:230
9068999729,45cyclictest18242-21ssh23:39:170
9068999716,60cyclictest24733-21grep23:58:410
9068999716,22cyclictest733-21users21:14:020
9068999715,23cyclictest31044-21df22:42:560
9068999713,66cyclictest29858-21cat22:38:520
9068999712,46cyclictest13601-21df19:32:450
9068999711,51cyclictest28607-21ssh22:35:410
906899969,68cyclictest17381-21ssh22:03:040
9068999628,21cyclictest6582-21ssh23:06:090
9068999616,59cyclictest19896-21users23:44:020
9068999613,63cyclictest32734-21ssh22:47:520
9068999611,65cyclictest15671-21grep19:43:090
9068999610,30cyclictest31489-21ssh21:09:070
9068999526,44cyclictest0-21swapper20:32:240
9068999517,22cyclictest27172-21df_inode20:47:470
9068999514,63cyclictest11603-21apt-get19:22:320
9068999512,43cyclictest2232-21df00:27:570
9068999510,65cyclictest14105-21memory21:53:310
906899949,27cyclictest13021-21grep19:28:150
906899949,23cyclictest1272-21cron19:42:110
9068999415,24cyclictest17413-21/usr/sbin/munin19:53:040
9068999413,24cyclictest7088-21fw_conntrack21:33:150
9068999411,63cyclictest26518-21ssh22:28:580
9068999410,46cyclictest21281-21grep23:48:400
9068999330,19cyclictest0-21swapper19:18:150
9068999316,27cyclictest26486-21ntp_states20:43:090
9068999315,20cyclictest3280-21apt-get21:22:370
9068999313,21cyclictest30411-21munin-run21:07:130
9068999132,39cyclictest29443-21sed20:58:190
9068999132,20cyclictest28623-21latency_hist20:57:140
9068999023,21cyclictest25908-21sh20:42:120
9068999017,25cyclictest16430-21irqstats19:48:000
9068999015,25cyclictest21325-21head20:13:170
9068998933,17cyclictest10110-21munin-node19:12:230
9068998919,23cyclictest9165-21apt-get19:07:260
9068998818,24cyclictest22703-21fw_conntrack20:22:520
9068998810,27cyclictest23782-21open_files20:28:090
9068998717,22cyclictest18109-21df19:57:410
9068998613,25cyclictest19964-21sh20:07:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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