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2025-07-13 - 11:50
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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 Sun Jul 13, 2025 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2414128820,11sleep024140-21nfs4_client19:05:280
250049915676,40cyclictest3136-21df_inode00:01:050
250049915573,38cyclictest24368-21apt-get23:17:080
250049915470,29cyclictest8332-21seq22:15:160
250049914974,35cyclictest7060-21ntp_states00:16:240
250049914773,53cyclictest3808-21runrttasks19:50:430
250049914678,24cyclictest26237-21apt-get19:12:080
250049914658,35cyclictest25996-21apt-get23:26:480
250049914567,57cyclictest4858-21apt19:55:130
250049914370,54cyclictest9364-21df20:10:260
250049914370,18cyclictest32274-21df19:35:190
250049914273,51cyclictest27935-21apt-config19:20:070
250049914273,35cyclictest1356-21snmpd21:38:340
250049914270,33cyclictest22664-21chrt23:10:330
250049914268,35cyclictest11157-21apt-get20:17:110
250049914073,49cyclictest13168-21latency_hist20:25:010
250049914070,34cyclictest6180-21ntp_states22:05:430
250049914069,36cyclictest28226-21apt-config19:20:160
250049914068,36cyclictest1356-21snmpd00:39:200
250049914067,31cyclictest760-21systemd-journal21:56:340
250049914066,37cyclictest1356-21snmpd21:28:320
250049914066,36cyclictest24823-21/usr/sbin/munin21:10:340
250049914065,37cyclictest24880-21/usr/sbin/munin23:20:280
250049913971,36cyclictest24368-21munin-run21:10:020
250049913966,51cyclictest1356-21snmpd20:33:070
250049913965,20cyclictest14032-21uname22:35:420
250049913878,28cyclictest32297-21memory21:40:350
250049913874,49cyclictest2709-40runlevel00:00:040
250049913872,46cyclictest9540-21/usr/sbin/munin22:20:190
250049913872,24cyclictest7234-21diskstats22:10:250
250049913865,36cyclictest1356-21snmpd23:54:110
250049913768,34cyclictest19747-21latency_hist23:00:040
250049913674,43cyclictest27313-21seq21:20:340
250049913664,51cyclictest10414-21cut00:30:150
250049913663,20cyclictest8172-21memory00:20:320
250049913661,36cyclictest22092-21wget21:00:160
250049913570,22cyclictest4491-21ntp_states00:05:450
250049913569,45cyclictest983-21runrttasks21:45:240
250049913566,31cyclictest25727-21/usr/sbin/munin21:15:320
250049913564,33cyclictest27742-21/usr/sbin/munin23:30:240
250049913474,39cyclictest13297-21/usr/sbin/munin20:25:250
250049913469,46cyclictest1356-21snmpd21:53:370
250049913468,46cyclictest17126-21aten_r7power_vo20:40:150
250049913465,32cyclictest1424-21nginx00:29:180
250049913463,35cyclictest1356-21snmpd19:28:040
250049913366,33cyclictest1424-21nginx22:53:010
250049913269,33cyclictest12149-21sshd22:28:580
250049913268,32cyclictest30443-21df23:40:230
250049913262,30cyclictest21240-21wget23:05:180
250049913261,36cyclictest1356-21snmpd20:58:250
250049913259,36cyclictest1356-21snmpd22:43:490
250049913259,34cyclictest1139-21fw_forwarded_lo19:40:290
250049913172,20cyclictest6477-21munin-run00:15:020
250049913171,40cyclictest1424-21nginx20:38:180
250049913167,45cyclictest1356-21snmpd22:48:480
250049913160,34cyclictest2553-21ntp_states19:45:400
250049913159,22cyclictest4780-21fw_forwarded_lo22:00:260
250049913060,33cyclictest12401-21apt22:30:140
250049912974,41cyclictest1356-21snmpd23:46:070
250049912971,43cyclictest8661-21http20:10:030
250049912966,21cyclictest18453-21df20:45:180
250049912861,33cyclictest29279-21irqstats23:35:300
250049912765,22cyclictest19747-21fw_forwarded_lo20:50:300
250049912759,34cyclictest31771-21sshd19:33:260
250049912677,37cyclictest29487-21/usr/sbin/munin21:30:390
250049912667,43cyclictest1336-21runrttasks23:04:030
250049912666,42cyclictest1356-21snmpd20:03:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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