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2026-01-02 - 12:25
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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 Fri Jan 02, 2026 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
944323070,7sleep09442-21/usr/sbin/munin19:05:250
103209912096,14cyclictest0-21swapper/019:10:110
103209910733,54cyclictest12402-21ntp_states19:15:390
103209910532,34cyclictest16385-21latency_hist23:50:060
103209910531,52cyclictest754-21systemd-journal21:50:000
103209910530,35cyclictest11907-21ntp_states23:30:420
103209910426,39cyclictest18662-21ntp_states19:40:430
103209910338,44cyclictest4402-21apt-get20:56:350
103209910147,36cyclictest32590-21if_err_eth022:45:300
103209910131,33cyclictest1305-21snmpd22:08:060
103209910043,36cyclictest26957-21/usr/sbin/munin20:15:150
103209910039,41cyclictest1408-21nginx00:08:330
103209910031,34cyclictest19704-21df_inode19:45:200
10320999954,36cyclictest8649-21/usr/sbin/munin21:10:530
10320999929,33cyclictest18138-21munin-plugin-st19:40:010
10320999927,55cyclictest1305-21snmpd22:13:060
10320999859,30cyclictest9089-21aten_r7power_en23:20:150
10320999839,21cyclictest226032chrt00:11:310
10320999836,42cyclictest1408-21nginx20:12:080
10320999827,18cyclictest30041-21diskstats22:35:230
10320999826,34cyclictest28902-21memory22:30:340
10320999754,34cyclictest21143-21aten_r7power_cu22:00:120
10320999738,43cyclictest12550-21cpu21:25:170
10320999730,26cyclictest12998-21fw_forwarded_lo23:35:290
10320999725,34cyclictest11165-21/usr/sbin/munin21:20:110
10320999722,36cyclictest7610-21df_inode21:05:220
10320999642,37cyclictest3650irq/20-4900000023:25:320
10320999626,20cyclictest7851-21tr23:15:140
10320999625,33cyclictest748-21/usr/sbin/munin20:40:590
10320999621,37cyclictest1305-21snmpd22:18:070
10320999562,24cyclictest3161-21cron20:50:010
10320999552,35cyclictest19664-21fw_forwarded_lo00:00:290
10320999550,36cyclictest25689-21aten_r7power_cu00:25:160
10320999526,32cyclictest14028-21/usr/sbin/munin23:40:160
10320999460,25cyclictest29871-21ntp_states20:25:440
10320999449,34cyclictest16962-21wget23:50:180
10320999423,18cyclictest27105-21diskstats00:30:260
10320999327,48cyclictest1285-21lldpd19:26:140
10320999327,36cyclictest5313-21wget23:05:130
10320999324,20cyclictest4499-21ntp_states23:01:120
10320999266,11cyclictest101ktimersoftd/022:28:100
10320999265,19cyclictest20974-21seq19:50:240
10320999227,25cyclictest2789-21sshd22:55:410
10320999224,53cyclictest1305-21snmpd21:53:020
10320999214,64cyclictest25846-1kworker/0:1H22:24:330
10320999159,21cyclictest16436-21awk21:40:300
10320999141,34cyclictest13287-21/usr/sbin/munin19:20:260
10320999123,33cyclictest1305-21snmpd00:23:330
10320999119,51cyclictest32657-21chrt20:36:320
10320999058,22cyclictest25266-21runrttasks20:07:120
10320999049,32cyclictest1351-21lldpd00:36:150
10320999045,35cyclictest22191-21diskstats19:55:220
10320999040,35cyclictest1305-21snmpd21:17:550
10320999032,21cyclictest3520-21fw_forwarded_lo20:50:280
10320999020,35cyclictest1305-21snmpd22:44:000
10320998965,11cyclictest101ktimersoftd/021:32:590
10320998956,22cyclictest31005-21runrttasks20:30:280
10320998929,19cyclictest801-21dbus-daemon21:40:010
10320998916,36cyclictest20370-21ps21:55:470
10320998819,51cyclictest6168-21/usr/sbin/munin21:00:120
10320998742,35cyclictest6609-21wget23:10:150
10320998721,32cyclictest1305-21snmpd20:02:380
10320998658,20cyclictest29310-21runrttasks20:24:400
10320998657,21cyclictest801-21dbus-daemon00:20:000
10320998618,18cyclictest18614-21awk23:56:100
10320998534,40cyclictest1526-21ntp_states22:50:380
10320998343,29cyclictest1608-21ntpd19:30:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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