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2025-12-29 - 09:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack7slot8.osadl.org (updated Mon Dec 29, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7948210690,10sleep07946-21diskstats19:05:180
89389916773,36cyclictest14430-21apt-get23:42:100
89389915360,38cyclictest11791-21apt-get19:18:160
89389915080,49cyclictest23225-21ntp_states00:10:460
89389915078,37cyclictest9623-21df_inode19:10:300
89389915076,53cyclictest26458-21df22:20:190
89389915074,21cyclictest29244-21df00:35:200
89389914979,31cyclictest21500-21df22:00:310
89389914976,36cyclictest12399-21df_inode21:25:280
89389914966,32cyclictest24256-21df00:15:190
89389914879,31cyclictest1276-21runrttasks00:27:460
89389914873,37cyclictest32597-21/usr/sbin/munin20:40:110
89389914860,35cyclictest12802-21apt-get23:37:100
89389914775,36cyclictest25728-21ntp_states00:20:430
89389914679,25cyclictest6879-21df_inode23:10:220
89389914675,49cyclictest1608-21ntpd20:35:370
89389914674,33cyclictest28755-21/usr/sbin/munin22:30:390
89389914672,22cyclictest3337-21ntp_states22:55:440
89389914672,20cyclictest11155-21users21:20:490
89389914579,50cyclictest23471-21seq22:08:380
89389914576,51cyclictest862-21ntpq22:46:120
89389914573,50cyclictest27768-21if_eth022:25:290
89389914572,21cyclictest25012-21aten_r7power_cu22:15:120
89389914473,34cyclictest20789-21http22:00:050
89389914473,28cyclictest1408-21nginx22:43:080
89389914471,33cyclictest11875-21df_inode23:30:200
89389914470,34cyclictest28217-21ntp_states00:30:460
89389914376,29cyclictest9513-21memory23:20:370
89389914372,36cyclictest1305-21snmpd21:18:430
89389914367,56cyclictest1305-21snmpd21:03:380
89389914289,40cyclictest6288-21apt-get21:07:100
89389914277,24cyclictest2099-21ntp_states22:50:450
89389914276,36cyclictest18776-21munin-run19:45:000
89389914273,35cyclictest15549-21seq19:30:390
89389914272,32cyclictest3934-21wget20:55:140
89389914271,34cyclictest22501-21munin-run20:00:020
89389914268,35cyclictest16530-21wget23:45:180
89389914262,22cyclictest12157-21apt-get19:22:120
89389914170,34cyclictest28041-21awk20:20:430
89389914168,39cyclictest30197-21diskstats22:35:230
89389914168,32cyclictest20214-21wget19:50:120
89389914085,41cyclictest18595-21diskstats21:50:190
89389914084,42cyclictest5632-21df_inode23:05:190
89389914073,50cyclictest20430-21wget00:00:170
89389914061,60cyclictest190642sleep023:55:180
89389914060,38cyclictest8684-21apt-get23:17:070
89389913992,36cyclictest17096-21sshd19:36:320
89389913986,38cyclictest19102-21diskstats19:45:240
89389913978,43cyclictest1408-21nginx20:53:240
89389913976,22cyclictest802-21in:imuxsock21:43:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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