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2026-09-19 - 12:01
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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 Fri Sep 18, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27605221027,52sleep00-21swapper/007:09:250
277409914876,35cyclictest31747-21chrt11:37:220
277409914869,35cyclictest1408-21nginx10:39:260
277409914769,38cyclictest30635-21irqstats07:20:290
277409914769,37cyclictest31643-21df09:30:180
277409914466,22cyclictest9389-21apt-get08:07:140
277409914463,24cyclictest17241-21apt-get08:37:080
277409914371,52cyclictest740-21wget07:30:180
277409914368,36cyclictest12754-21ntp_states08:15:390
277409914269,20cyclictest12154-21munin-run12:30:030
277409914268,52cyclictest27762-21wget09:15:140
277409914268,38cyclictest12675-21ntp_states12:30:500
277409914260,35cyclictest1305-21snmpd09:51:570
277409914176,22cyclictest2989-21diskstats09:45:220
277409914175,31cyclictest11760-21munin-run10:20:030
277409914170,27cyclictest29160-21df09:20:150
277409914064,38cyclictest25517-21irqstats09:05:310
277409914063,36cyclictest6913-21ntp_states10:00:420
277409913974,22cyclictest28682-21df11:25:330
277409913968,51cyclictest1305-21snmpd07:57:050
277409913966,20cyclictest21903-21/usr/sbin/munin08:50:430
277409913965,36cyclictest4927-21ntp_states07:45:410
277409913874,43cyclictest801-21dbus-daemon12:35:230
277409913869,35cyclictest26772-21memory09:10:330
277409913865,53cyclictest627-21ntp_states09:35:430
277409913865,34cyclictest1305-21snmpd11:12:160
277409913862,36cyclictest22966-21apt-get11:06:000
277409913766,50cyclictest5431-21sshd12:01:100
277409913686,38cyclictest7157-21sh12:10:010
277409913667,48cyclictest7335-21wget12:10:130
277409913664,19cyclictest5978-21diskstats07:50:240
277409913661,38cyclictest20849-21users08:45:470
277409913579,42cyclictest14039-21ntp_states08:20:420
277409913565,34cyclictest5315-21wget09:55:140
277409913565,32cyclictest32736-21https07:30:050
277409913475,43cyclictest787-21haveged10:55:430
277409913469,48cyclictest8862-21threads08:00:470
277409913465,33cyclictest1042-21wget11:45:200
277409913373,20cyclictest12283-21ntp_states10:20:410
277409913371,24cyclictest3152-21latency_hist07:40:010
277409913371,22cyclictest3753-21fw_forwarded_lo11:55:320
277409913371,22cyclictest2542-21/usr/sbin/munin11:50:270
277409913369,45cyclictest32472-21cat11:40:330
277409913367,47cyclictest10121-21apt10:15:000
277409913362,32cyclictest1305-21snmpd10:32:060
277409913361,19cyclictest28036-21diskstats07:10:240
277409913279,41cyclictest24581-21seq09:00:470
277409913268,22cyclictest18336-21fw_forwarded_lo10:45:260
277409913267,30cyclictest29789-21wget11:30:160
277409913261,33cyclictest26146-21df_inode11:15:200
277409913184,36cyclictest16522-21sshd08:30:400
277409913170,20cyclictest20171-21sshd10:52:320
277409913168,21cyclictest27425-21df11:20:250
277409913166,24cyclictest11516-21ntp_offset08:10:370
277409913078,41cyclictest3491-21diskstats07:40:190
277409913067,46cyclictest8285-21runrttasks10:05:450
277409913061,24cyclictest29834-21apt-get07:17:070
277409912989,28cyclictest19399-21ntp_states08:40:400
277409912969,20cyclictest9126-21users12:15:500
277409912865,30cyclictest22964-21latency_hist11:05:040
277409912864,47cyclictest16976-21wget10:40:140
277409912780,35cyclictest30214-21/usr/sbin/munin09:25:500
277409912771,46cyclictest1898-21ntpq09:40:360
277409912768,19cyclictest13311-21/usr/sbin/munin10:25:150
277409912758,36cyclictest22909-21df08:55:160
277409912571,40cyclictest9993-21diskstats12:20:210
277409912477,35cyclictest15105-21fw_conntrack08:25:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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