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2025-11-27 - 07:53
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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 50 highest latencies:
System rack2slot7.osadl.org (updated Thu Nov 27, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157123499460,29cyclictest1790183-21sendmail-msp00:32:430
157123499431,28cyclictest0-21swapper/023:34:250
157123699416,6cyclictest0-21swapper/222:58:052
157123599415,12cyclictest1737452-21ntpq23:28:121
157123599374,10cyclictest0-21swapper/100:12:591
1571234993730,5cyclictest0-21swapper/022:26:390
1571234993726,8cyclictest1638353-21sendmail-msp21:46:380
1571234993720,8cyclictest0-21swapper/023:10:090
1571235993626,6cyclictest1647633-21ssh21:55:411
1571235993624,7cyclictest0-21swapper/122:31:081
157123499362,21cyclictest0-21swapper/021:27:110
157123699349,5cyclictest11050irq/107-eth%d21:31:052
1571234993329,3cyclictest0-21swapper/020:03:070
157123499332,30cyclictest0-21swapper/000:30:030
157123699323,6cyclictest259-21jbd2/mmcblk0p2-823:12:412
157123499325,8cyclictest1683776-21ssh22:32:550
1571234993220,3cyclictest0-21swapper/020:54:070
157123699314,5cyclictest1682044-21apt-get22:31:092
157123699311,7cyclictest1742183-21ntpq23:33:072
1571235993124,4cyclictest1734708-21sendmail-msp23:33:071
1571235993118,9cyclictest1605750-21sendmail-msp21:14:121
1571234993125,5cyclictest11650irq/162-mmc021:34:590
157123699304,13cyclictest1773229-21ssh00:06:032
157123699302,3cyclictest1699117-21ssh22:48:092
157123599305,5cyclictest0-21swapper/122:08:091
157123599303,22cyclictest1653258-21ssh22:01:051
1571235993014,12cyclictest1773591-21kworker/u8:1+rpciod00:31:121
1571234993019,2cyclictest1778545-21aten_r2power_cu00:12:580
157123499301,3cyclictest1652752-21apt-config22:01:020
157123699294,7cyclictest171rcu_preempt22:21:062
157123499293,20cyclictest0-21swapper/021:43:070
157123499291,27cyclictest0-21swapper/000:08:030
157123699286,7cyclictest11050irq/107-eth%d23:47:582
157123699285,2cyclictest0-21swapper/221:58:012
157123499285,17cyclictest1005-21mta-sts-daemon22:06:090
157123499283,3cyclictest1571233-21cyclictest19:16:020
157123499282,24cyclictest1783261-21fschecks_time00:18:020
1571234992814,3cyclictest0-21swapper/023:46:450
1571236992716,6cyclictest0-21swapper/221:11:082
157123599273,13cyclictest111788-21systemd-journal21:31:091
1571235992718,7cyclictest1722551-21ssh23:13:051
1571234992718,7cyclictest0-21swapper/022:38:030
157123499271,23cyclictest1611254-21grep21:18:010
157123499271,23cyclictest0-21swapper/022:18:060
157123499271,1cyclictest1726974-21fschecks_time23:18:010
157123699266,15cyclictest2243333-21munin-node23:03:072
157123699263,17cyclictest1590276-21/usr/sbin/munin20:13:092
1571235992614,9cyclictest1588057-21sendmail-msp20:11:121
157123499265,4cyclictest11050irq/107-eth%d22:01:050
157123699257,12cyclictest1677289-21sendmail-msp22:26:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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