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2026-03-16 - 04:52
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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 Mar 16, 2026 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2738326590,13sleep027382-21cut19:10:000
274339912681,35cyclictest11431-21users20:10:490
274339912680,37cyclictest19352-21grep22:50:040
274339912676,38cyclictest30655-21apt-get21:31:260
274339912580,35cyclictest3620-21/usr/sbin/munin23:55:410
274339912578,36cyclictest2536-21apt-config19:40:060
274339912486,27cyclictest19330-21apt-get22:51:310
274339912481,31cyclictest3760-21chrt19:42:100
274339912479,35cyclictest27385-21/usr/sbin/munin21:15:350
274339912478,37cyclictest9226-21df_inode00:15:250
274339912378,33cyclictest2986-21apt-config21:45:220
274339912377,35cyclictest5547-21diskstats00:00:390
274339912375,37cyclictest8409-21cat20:00:240
274339912278,35cyclictest5654-21df_inode19:50:190
274339912273,39cyclictest29722-21df21:25:170
274339912188,23cyclictest4617-21ntp_states19:45:420
274339912183,27cyclictest15065-21/usr/sbin/munin22:30:470
274339912075,37cyclictest22036-21/usr/sbin/munin20:55:130
274339912075,35cyclictest13083-21memory00:30:360
274339912071,37cyclictest31150-21munin-run19:25:000
274339911973,35cyclictest1305-21snmpd22:40:030
274339911971,37cyclictest14759-21df20:25:160
274339911970,37cyclictest23761-21df23:05:180
274339911880,28cyclictest32180-21systemctl23:40:010
274339911875,33cyclictest4111-21/usr/sbin/munin21:50:210
274339911873,35cyclictest11731-21df00:25:230
274339911873,34cyclictest10639-21memory22:15:320
274339911786,21cyclictest23485-21df21:00:190
274339911777,31cyclictest1312-21sshd22:20:210
274339911774,32cyclictest1-21systemd21:35:120
274339911769,36cyclictest28502-21diskstats21:20:220
274339911680,24cyclictest7825-21apt-get20:00:020
274339911670,34cyclictest12255-21df_inode20:15:170
274339911581,24cyclictest6819-21runrttasks22:00:220
274339911581,23cyclictest27514-21/usr/sbin/munin23:20:160
274339911572,33cyclictest6842-21irqstats00:05:350
274339911571,33cyclictest32713-21diskstats19:30:220
274339911571,33cyclictest26625-21sshd21:12:450
274339911482,22cyclictest28771-21diskstats23:25:210
274339911470,34cyclictest25525-21chrt23:11:360
274339911469,35cyclictest10329-21grep00:20:170
274339911468,34cyclictest27965-21/usr/sbin/munin19:10:440
274339911382,21cyclictest9968-21ntp_states20:05:370
274339911373,30cyclictest2036-21runrttasks23:48:130
274339911370,34cyclictest7968-21df_inode00:10:170
274339911368,35cyclictest17203-21fw_forwarded_lo22:40:260
274339911368,35cyclictest1539-21memory21:40:320
274339911367,34cyclictest5736-21ntp_states21:55:390
274339911280,22cyclictest24731-21df_inode21:05:190
274339911280,22cyclictest15154-21sendmail-msp00:40:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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