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2026-04-15 - 16:42
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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 highest latencies:
System rack7slot8.osadl.org (updated Wed Apr 15, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9177216480,8sleep09175-21ntp_states19:05:290
99889911628,47cyclictest1408-21nginx19:36:480
99889911225,33cyclictest1390-21diskstats22:50:220
99889911149,45cyclictest22415-21sendmail20:00:020
99889911053,37cyclictest20229-21chrt19:50:180
99889911027,31cyclictest27787-21ntp_states22:25:420
99889910941,34cyclictest1305-21snmpd00:14:330
99889910645,42cyclictest1408-21nginx23:27:290
99889910536,29cyclictest1408-21nginx22:37:210
99889910529,41cyclictest12824-21gpgv21:30:040
99889910432,36cyclictest9929-21apt-get21:17:060
99889910431,39cyclictest16967-21sshd21:42:120
99889910331,53cyclictest25042-21systemd00:23:410
99889910247,37cyclictest5461-21aten_r7power_cu21:00:130
99889910230,34cyclictest10836-21ntp_states21:20:420
99889910132,51cyclictest15393-21cpuspeed23:45:210
99889910131,35cyclictest24762-21apt22:15:010
99889910056,35cyclictest12075-21apt-get19:17:080
99889910044,36cyclictest6071-21latency_hist23:10:020
9988999953,34cyclictest27363-21chrt20:16:430
9988999939,46cyclictest20386-21wget00:05:150
9988999930,50cyclictest23410-21runrttasks22:09:050
9988999928,51cyclictest13443-21seq19:22:500
9988999855,33cyclictest19005-21runrttasks19:45:210
9988999838,41cyclictest26019-21munin-plugin-st22:20:010
9988999824,20cyclictest28817-21df22:30:170
9988999753,33cyclictest2010-21node19:40:450
9988999649,28cyclictest3723-21aten_r7power_cu23:00:090
9988999637,39cyclictest85-21hwrng21:10:300
9988999631,49cyclictest1305-21snmpd00:25:260
9988999627,31cyclictest26134-21/usr/sbin/munin20:15:030
9988999552,33cyclictest19784-21sh21:55:010
9988999532,21cyclictest12799-21apt-get21:32:110
9988999526,52cyclictest832-21ntp_states20:40:420
9988999525,34cyclictest29023-21latency_hist20:25:030
9988999465,21cyclictest14750-21seq19:28:240
9988999454,29cyclictest1408-21nginx23:12:290
9988999428,49cyclictest18900-21sendmail00:00:030
9988999428,29cyclictest32399-21grep22:45:140
9988999426,33cyclictest21768-21users22:00:490
9988999425,18cyclictest22727-21df20:00:170
9988999334,43cyclictest0-21swapper/021:38:590
9988999334,21cyclictest5304-21sh21:00:010
9988999330,31cyclictest1285-21lldpd21:07:280
9988999325,32cyclictest7820-21ntp_states23:15:440
9988999263,20cyclictest21035-21munin-plugin-st22:00:010
9988999253,30cyclictest3531-21/usr/sbin/munin20:50:470
9988999223,19cyclictest1888-21df20:45:180
9988999163,20cyclictest18335-21runrttasks21:48:150
9988999142,30cyclictest1408-21nginx20:36:580
9988999124,49cyclictest1305-21snmpd20:28:420
9988999122,50cyclictest12471-21wget23:35:130
9988999122,31cyclictest22809-21/usr/sbin/munin00:15:270
9988999120,35cyclictest31514-21ntp_states22:40:400
9988999119,35cyclictest19300-21fw_conntrack00:00:290
9988999063,19cyclictest13882-21runrttasks23:40:240
9988999046,33cyclictest30552-21cpuspeed20:30:160
9988999034,38cyclictest2781-21netstat22:55:340
9988998945,35cyclictest24283-21find20:05:440
9988998933,37cyclictest801-21dbus-daemon00:40:020
9988998922,50cyclictest10108-21chrt19:10:130
9988998839,37cyclictest26506-21ntpq22:20:360
9988998823,47cyclictest8724-21wget23:20:140
9988998748,29cyclictest16554-21cut23:50:120
9988998745,29cyclictest27370-21chrt00:30:410
9988998552,23cyclictest15058-21seq19:30:110
9988998548,24cyclictest11571-21ntp_states23:30:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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