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2026-05-19 - 11:52
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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 all highest latencies:
System rack7slot8.osadl.org (updated Mon May 18, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6018222030,58sleep00-21swapper/007:09:030
61969913646,38cyclictest16035-21apt-get07:47:090
61969912345,58cyclictest1-21systemd12:25:530
61969912248,37cyclictest7755-21apt-config07:15:130
61969912051,50cyclictest27499-21users08:25:490
61969912050,51cyclictest10537-21cut07:25:110
61969911947,35cyclictest21830-21memory08:05:340
61969911940,26cyclictest13152-21apt-get07:37:090
61969911896,12cyclictest0-21swapper/007:10:040
61969911842,56cyclictest1408-21nginx09:50:090
61969911836,23cyclictest13033-21apt-get09:42:120
61969911767,39cyclictest7687-21apt-get09:17:070
61969911747,53cyclictest28518-21sshd08:30:390
61969911747,37cyclictest19652-21munin-run10:05:030
61969911637,42cyclictest26382-21ntp_states10:30:380
61969911572,34cyclictest6821-21latency_hist09:15:030
61969911560,37cyclictest1305-21snmpd11:25:180
61969911546,49cyclictest10068-21irqstats11:35:310
61969911541,35cyclictest13926-21wget11:50:130
61969911470,34cyclictest1045-21/usr/sbin/munin08:50:360
61969911465,32cyclictest3650irq/20-4900000012:30:260
61969911453,42cyclictest5551-21cron09:10:010
61969911452,22cyclictest28482-21seq10:40:050
61969911450,49cyclictest18958-21wget12:10:140
61969911445,35cyclictest25752-21df08:20:220
61969911443,32cyclictest1305-21snmpd10:10:040
61969911441,36cyclictest1305-21snmpd11:15:230
61969911354,40cyclictest30036-21irqstats10:45:320
61969911333,42cyclictest8825-21sshd09:20:550
61969911255,41cyclictest11654-21diskstats11:40:330
61969911242,34cyclictest18392-21latency_hist10:00:010
61969911240,36cyclictest1305-21snmpd11:00:180
61969911240,20cyclictest20445-21memory12:15:320
61969911167,34cyclictest20139-21sendmail08:00:000
61969911167,33cyclictest18862-21seq07:54:450
61969911151,45cyclictest25903-21memory12:35:570
61969911146,25cyclictest27352-21wget10:35:160
61969911144,34cyclictest2145-21diskstats08:55:250
61969911138,20cyclictest16578-21sort12:00:210
61969911063,35cyclictest754-21systemd-journal09:36:560
61969911052,37cyclictest1305-21snmpd11:55:230
61969911048,43cyclictest23098-21nfs_client08:10:340
61969911047,43cyclictest23755-21fw_conntrack10:20:280
61969911043,33cyclictest6283-21fw_conntrack11:20:240
61969911039,52cyclictest18155-21awk12:05:470
61969911038,34cyclictest15183-21ntp_states09:45:410
61969911037,19cyclictest12427-21ntp_states07:30:390
61969910966,32cyclictest754-21systemd-journal11:08:560
61969910950,20cyclictest32402-21df10:55:180
61969910942,47cyclictest20305-21wget08:00:120
61969910938,37cyclictest11100-21/usr/sbin/munin09:30:440
61969910838,34cyclictest1305-21snmpd10:25:080
61969910831,42cyclictest24764-21apt-get08:17:050
61969910748,44cyclictest10250irq/56-4a10000008:35:130
61969910744,21cyclictest8724-21df11:30:170
61969910739,33cyclictest10313-21gpgv07:25:050
61969910657,33cyclictest21009-21/usr/sbin/munin10:10:120
61969910655,40cyclictest31043-21aten_r7power_po10:50:130
61969910638,35cyclictest9422-21/usr/sbin/munin09:25:430
61969910632,34cyclictest31752-21munin-run08:45:020
61969910560,34cyclictest12655-21/usr/sbin/munin11:45:200
61969910538,47cyclictest1305-21snmpd12:20:500
61969910440,23cyclictest1276-21runrttasks09:00:260
61969910363,29cyclictest15312-21seq07:40:390
61969910341,31cyclictest1305-21snmpd10:15:050
61969910335,32cyclictest1305-21snmpd11:10:200
61969910167,23cyclictest32207-21nfs4_client08:45:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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