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2026-05-02 - 14:44
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Sat May 02, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31662220925,53sleep00-21swapper/019:06:320
32140991707,106cyclictest7018-21apt-get23:57:090
321409917018,112cyclictest22736-21wget20:40:140
321409916747,95cyclictest16172-21sshd00:27:380
32140991658,137cyclictest10154-21/usr/sbin/munin19:50:110
32140991656,104cyclictest4588-21chrt19:26:020
321409916327,96cyclictest1408-21nginx20:58:170
321409916238,108cyclictest10250irq/56-4a10000022:23:330
321409916226,115cyclictest1408-21nginx23:12:530
32140991617,95cyclictest25343-21apt-get23:02:100
321409916027,110cyclictest31971-21latency_hist23:25:030
32140991599,104cyclictest2358-21apt-get19:18:210
32140991579,90cyclictest32462-21apt-get21:22:090
32140991568,114cyclictest17138-21apt-get20:17:020
32140991567,120cyclictest1305-21snmpd20:33:510
321409915633,111cyclictest12515-21sh20:00:010
321409915626,111cyclictest1408-21nginx22:26:540
32140991556,16cyclictest17849-21apt-get00:37:100
32140991556,111cyclictest1276-21runrttasks00:23:220
321409915524,112cyclictest20485-21/usr/sbin/munin22:40:130
321409915510,124cyclictest32690-21uptime23:25:440
32140991547,92cyclictest27311-21diskstats23:05:230
32140991547,106cyclictest4285-21/usr/sbin/munin21:35:110
32140991546,94cyclictest3613-21df23:40:200
321409915440,101cyclictest10896-21ntpq22:00:360
32140991537,125cyclictest32241-21sshd21:18:130
321409915341,102cyclictest10475-21grep22:00:050
321409915337,104cyclictest801-21dbus-daemon21:55:010
32140991529,102cyclictest1276-21runrttasks00:10:110
32140991527,122cyclictest14267-21wget22:15:150
321409915237,104cyclictest7962-21latency_hist21:50:030
32140991519,88cyclictest23183-21diskstats22:50:220
32140991518,123cyclictest22252-21systemctl22:45:440
32140991517,123cyclictest13682-21cron00:20:010
32140991516,125cyclictest16730-21/usr/sbin/munin00:30:130
321409915125,111cyclictest2758-21seq23:35:450
32140991509,98cyclictest5058-21ntp_states23:45:440
32140991509,84cyclictest17835-21df20:20:160
32140991507,123cyclictest6472-21wget19:35:110
32140991507,104cyclictest3146-21ps19:20:420
32140991506,108cyclictest19746-21which22:35:440
32140991498,105cyclictest29711-21wc23:15:190
32140991497,124cyclictest1305-21snmpd20:25:270
32140991497,110cyclictest14005-21wget20:05:140
32140991496,123cyclictest11197-21latency_hist00:10:030
321409914936,100cyclictest15325-21/usr/sbin/munin20:10:180
321409914922,112cyclictest1305-21snmpd22:06:120
321409914916,114cyclictest22254-21sshd20:38:050
32140991488,104cyclictest18197-21diskstats22:30:220
32140991486,104cyclictest1305-21snmpd19:30:420
321409914816,112cyclictest27601-21/usr/sbin/munin21:00:160
32140991479,100cyclictest12683-21wget20:00:120
32140991478,100cyclictest3340-21irqstats21:30:290
321409914746,89cyclictest7684-21runrttasks19:40:100
32140991469,118cyclictest26256-21latency_hist20:55:020
32140991467,121cyclictest5952-21aten_r7power_po23:50:110
321409914643,92cyclictest31199-21sh21:15:000
32140991459,95cyclictest13336-21awk22:10:340
32140991459,93cyclictest24431-21diskstats22:55:260
32140991458,96cyclictest24045-21seq20:45:150
32140991456,119cyclictest881-21apt23:30:080
32140991446,98cyclictest1305-21snmpd21:05:320
321409914434,99cyclictest9931-21apt00:05:020
321409914340,90cyclictest900-21latency_hist19:15:060
321409914330,100cyclictest754-21systemd-journal19:47:570
32140991406,94cyclictest2676-21seq21:27:570
321409913731,95cyclictest5603-21wget21:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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