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2025-12-04 - 04:39
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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 Thu Dec 04, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166302822143,342sleep09839-21kworker/0:219:05:320
174369912865,48cyclictest10250irq/56-4a10000021:07:430
174369912539,33cyclictest26977-21ntp_states21:50:400
174369912337,24cyclictest19912-21apt-get19:18:190
174369912165,36cyclictest28936-21runrttasks00:05:000
174369911947,35cyclictest24799-21/usr/sbin/munin21:41:360
174369911837,60cyclictest16455-21diskstats21:10:400
174369911758,45cyclictest1356-21snmpd23:06:200
174369911446,29cyclictest1424-21nginx21:17:450
174369911435,21cyclictest6055-21apt-get22:37:100
174369911340,36cyclictest31218-21open_files22:06:250
174369911256,42cyclictest37732chrt00:33:040
174369911139,50cyclictest8088-21chrt20:39:000
174369911137,36cyclictest1356-21snmpd22:43:050
174369911129,46cyclictest32230-21runrttasks00:16:230
174369911067,32cyclictest21169-21runrttasks19:21:580
174369911065,34cyclictest32104-21grep20:05:150
174369911040,32cyclictest3188-21apt-get22:26:400
174369911040,18cyclictest25571-21irqstats23:50:320
174369910945,45cyclictest1336-21runrttasks21:32:410
174369910944,33cyclictest3190-21/usr/sbin/munin22:25:030
174369910938,36cyclictest24367-21aten_r7power_cu19:35:140
174369910833,19cyclictest28652-21ntp_states19:50:400
174369910766,31cyclictest27677-21sendmail00:00:020
174369910645,44cyclictest1424-21nginx19:31:210
174369910634,37cyclictest18194-21ntp_states23:20:420
174369910633,52cyclictest16532-21munin-node23:15:150
174369910569,28cyclictest31164-21sshd20:00:390
174369910569,26cyclictest1336-21runrttasks23:13:440
174369910556,39cyclictest1336-21runrttasks22:10:340
174369910540,45cyclictest1674-21ntpd00:10:390
174369910533,37cyclictest1356-21snmpd19:13:410
174369910533,33cyclictest1969-21latency_hist20:15:020
174369910470,24cyclictest12260-21runrttasks20:55:160
174369910463,33cyclictest19186-21ps21:20:450
174369910441,44cyclictest1424-21nginx22:16:530
174369910437,46cyclictest1356-21snmpd00:26:380
174369910434,35cyclictest1356-21snmpd20:54:030
174369910432,20cyclictest802-21dbus-daemon21:40:020
174369910431,35cyclictest5261-21apt-get00:40:040
174369910373,20cyclictest11747-21runrttasks22:55:210
174369910372,21cyclictest30646-21grep20:00:000
174369910367,25cyclictest802-21dbus-daemon20:20:000
174369910362,31cyclictest22552-21runrttasks23:39:130
174369910361,24cyclictest0-21swapper/022:51:180
174369910354,39cyclictest20333-21ntpq21:25:360
174369910343,41cyclictest537-21df00:20:160
174369910273,20cyclictest28960-21munin-plugin-st22:00:010
174369910272,22cyclictest8748-21runrttasks20:40:400
174369910260,31cyclictest19390-21runrttasks23:25:370
174369910255,36cyclictest24379-21runrttasks23:45:370
174369910244,39cyclictest13732-21sshd21:00:400
174369910236,34cyclictest6064-21http22:35:030
174369910230,36cyclictest13044-21fw_forwarded_lo23:00:290
174369910172,20cyclictest6456-21runrttasks20:30:500
174369910171,22cyclictest21445-21latency_hist23:35:020
174369910156,34cyclictest26013-21fw_conntrack19:40:250
174369910154,36cyclictest9256-21df_inode22:45:180
174369910063,19cyclictest4603-21/usr/sbin/munin20:25:130
174369910061,30cyclictest9621-21aten_r7power_cu20:45:140
174369910058,34cyclictest29063-21munin-node00:05:140
17436999936,45cyclictest760-21systemd-journal22:01:400
17436999867,22cyclictest23825-21runrttasks23:44:190
17436999755,33cyclictest25339-21/usr/sbin/munin21:45:130
17436999751,35cyclictest22239-21swap19:25:450
17436999652,34cyclictest4485-21latency_hist20:25:030
17436999353,29cyclictest792-21haveged19:45:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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