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2026-06-16 - 04:09
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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 Mon Jun 15, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7279221029,49sleep00-21swapper/007:05:060
84769912636,21cyclictest1-21systemd12:10:340
84769912058,48cyclictest24337-21diskstats10:35:240
84769911850,29cyclictest1408-21nginx10:21:270
84769911794,13cyclictest0-21swapper/007:10:030
84769911540,35cyclictest10343-21df11:45:220
84769911453,19cyclictest7412-21seq09:26:370
84769911356,37cyclictest9406-21runrttasks11:41:410
84769911349,43cyclictest1408-21nginx08:09:490
84769911339,34cyclictest12444-21/usr/sbin/munin07:30:440
84769911249,44cyclictest9245-21wget09:35:150
84769911162,39cyclictest18390-21runrttasks12:15:570
84769911137,54cyclictest17694-21fw_forwarded_lo07:55:490
84769911044,28cyclictest1408-21nginx10:55:180
84769911041,49cyclictest21649-21wget12:30:160
84769910951,19cyclictest1408-21nginx09:21:090
84769910935,36cyclictest2633-21diskstats11:15:300
84769910863,33cyclictest3197-21sshd09:10:500
84769910835,54cyclictest15306-21wget12:05:120
84769910750,38cyclictest787-21haveged09:00:000
84769910738,34cyclictest22556-21/usr/sbin/munin08:20:510
84769910735,53cyclictest13600-21seq09:51:150
84769910663,32cyclictest25399-21sshd08:30:360
84769910638,50cyclictest27401-21munin-plugin-st08:40:010
84769910634,19cyclictest8149-21diskstats09:30:220
84769910634,19cyclictest491-21cp11:10:110
84769910538,36cyclictest16905-21/usr/sbin/munin07:55:030
84769910533,51cyclictest1517-21df_inode09:05:200
84769910442,22cyclictest19908-21apt-get10:17:090
84769910440,46cyclictest28158-21irqstats10:50:300
84769910439,30cyclictest21662-21ntp_states08:15:340
84769910429,20cyclictest30561-21which08:50:460
84769910371,22cyclictest10796-21nfs_client09:40:350
84769910362,31cyclictest23796-21runrttasks10:33:140
84769910354,33cyclictest2010-21node09:55:130
84769910348,39cyclictest85-21hwrng07:22:180
84769910342,21cyclictest18091-21df10:10:170
84769910260,31cyclictest10096-21chrt07:15:290
84769910259,32cyclictest6020-21seq11:29:430
84769910258,33cyclictest1408-21nginx11:36:460
84769910232,49cyclictest1285-21lldpd10:08:130
84769910231,34cyclictest27233-21users10:45:500
84769910229,35cyclictest15722-21chrt10:00:310
84769910228,37cyclictest24030-21fw_conntrack08:25:260
84769910227,37cyclictest424-21ntp_states09:00:400
84769910222,26cyclictest29083-21memory08:45:350
84769910160,30cyclictest19937-21runrttasks12:23:010
84769910131,49cyclictest4265-21grep11:20:440
84769910030,50cyclictest3838-21wget09:15:120
84769910029,35cyclictest13170-21ntp_states11:55:390
8476999951,36cyclictest28123-21/usr/sbin/munin08:40:480
8476999944,38cyclictest31485-21grep11:05:010
8476999937,21cyclictest14227-21df12:00:170
8476999935,22cyclictest22049-21ntp_states10:25:420
8476999850,38cyclictest15377-21irqstats07:45:250
8476999837,21cyclictest32298-21sshd11:06:280
8476999750,37cyclictest20479-21seq12:25:170
8476999735,21cyclictest25598-21sshd10:40:230
8476999733,49cyclictest11780-21sshd07:25:200
8476999646,38cyclictest6180-21chrt11:30:130
8476999634,47cyclictest11869-21df09:45:150
8476999627,54cyclictest1305-21snmpd11:50:560
8476999556,30cyclictest787-21haveged12:35:430
8476999551,33cyclictest14270-21latency_hist07:40:010
8476999464,20cyclictest787-21haveged08:00:080
8476998858,20cyclictest20650-21seq08:10:390
8476998857,20cyclictest14929-21runrttasks07:44:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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