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2025-12-05 - 17:20
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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 Fri Dec 05, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
85890599625,38cyclictest857527-1kworker/0:1H+kblockd10:28:130
858905995528,7cyclictest0-21swapper/011:31:060
85890599482,29cyclictest0-21swapper/010:36:190
858905994428,7cyclictest876537-21diskmemload12:26:200
85890599413,36cyclictest0-21swapper/012:34:090
85890599413,36cyclictest0-21swapper/012:34:090
858905993924,4cyclictest0-21swapper/009:26:170
858905993924,4cyclictest0-21swapper/009:26:170
858905993822,3cyclictest0-21swapper/012:08:070
858905993821,5cyclictest878467-21/usr/sbin/munin09:18:100
85890599371,6cyclictest111788-21systemd-journal11:48:130
85890599371,2cyclictest0-21swapper/012:38:080
858905993634,1cyclictest0-21swapper/012:43:210
85890599363,20cyclictest923678-21ntpq10:13:120
85890799339,4cyclictest1029001-21ssh12:23:092
858907993311,4cyclictest171rcu_preempt09:33:122
858905993221,9cyclictest1014208-21sendmail-msp12:14:580
858905993210,2cyclictest171rcu_preempt09:21:100
858905993127,2cyclictest0-21swapper/009:36:130
858907993019,9cyclictest1048989-21ssh12:46:032
85890699309,17cyclictest111788-21systemd-journal09:33:041
85890599308,16cyclictest619-21mta-sts-daemon07:26:220
85890599301,22cyclictest0-21swapper/011:09:010
858905993011,3cyclictest0-21swapper/011:32:240
858905992923,4cyclictest1008-21mta-sts-daemon11:12:150
112699290,3rtkit-daemon1125-21rtkit-daemon08:43:220
85890699287,17cyclictest619-21mta-sts-daemon12:12:071
85890599280,19cyclictest979205-21grep11:23:100
85890699277,4cyclictest876537-21diskmemload10:36:191
85890599274,5cyclictest11050irq/107-eth%d11:53:160
858905992724,2cyclictest1029016-21ntpq12:23:090
85890799263,16cyclictest111788-21systemd-journal11:29:412
85890799260,8cyclictest171rcu_preempt11:03:122
85890699264,4cyclictest1038015-21ssh12:33:131
85890699264,4cyclictest1038015-21ssh12:33:131
85890599262,22cyclictest893224-21latency_hist09:36:100
858905992615,9cyclictest872236-21sendmail-msp08:53:550
85890699252,9cyclictest1004685-21ntpq11:53:161
858906992515,6cyclictest989150-21apt-get11:36:101
858905992519,3cyclictest916094-21ssh10:03:190
858907992420,2cyclictest858855-21apt-get07:16:102
85890699243,19cyclictest907543-21ntpq09:53:101
85890599244,8cyclictest858860-21munin-run07:16:090
85890599242,16cyclictest919652-21missed_timers10:08:100
85890799233,8cyclictest956018-21aten_r2power_en10:53:042
858907992316,5cyclictest259-21jbd2/mmcblk0p2-810:36:172
858907992310,9cyclictest351ktimers/209:58:432
85890699238,11cyclictest2243333-21munin-node09:18:351
858905992310,9cyclictest901528-21sendmail-msp09:46:100
85890799226,4cyclictest171rcu_preempt10:58:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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