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2025-12-05 - 17:53
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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 100 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
85890799223,6cyclictest171rcu_preempt11:11:432
85890799223,17cyclictest1014208-21sendmail-msp12:07:132
858907992216,4cyclictest934593-21ssh10:26:182
85890699227,11cyclictest619-21mta-sts-daemon11:33:141
85890699225,13cyclictest975462-21ntp_states11:18:121
85890699223,5cyclictest11050irq/107-eth%d09:46:101
85890599226,12cyclictest0-21swapper/010:53:040
85890599221,11cyclictest875960-21awk09:13:100
85890599220,19cyclictest989635-21ssh11:36:100
112699220,3rtkit-daemon1125-21rtkit-daemon12:46:091
85890799216,14cyclictest1005-21mta-sts-daemon11:18:102
858907992116,4cyclictest873875-21open_files08:58:092
85890699218,9cyclictest884852-21sendmail-msp09:28:141
85890699218,9cyclictest884852-21sendmail-msp09:28:141
85890699212,11cyclictest1024255-21ssh12:18:091
858906992119,1cyclictest58-21kcompactd010:08:121
858905992113,3cyclictest0-21swapper/010:33:110
858905992113,0cyclictest0-21swapper/012:19:590
85890799204,14cyclictest1031428-21sendmail-msp12:29:122
85890799203,14cyclictest111788-21systemd-journal09:54:522
85890799202,5cyclictest171rcu_preempt11:08:122
85890799202,5cyclictest0-21swapper/211:50:222
858907992014,4cyclictest0-21swapper/209:38:012
85890799200,1cyclictest171rcu_preempt09:21:102
85890699208,10cyclictest923671-21ssh10:13:121
85890699204,12cyclictest873876-21awk08:58:091
85890699203,2cyclictest58-21kcompactd009:21:101
85890699203,13cyclictest633-21gpm10:46:181
858906992017,2cyclictest964992-21unixbench_singl11:03:171
858905992018,1cyclictest0-21swapper/007:16:100
85890599201,18cyclictest0-21swapper/011:58:120
112699200,1rtkit-daemon0-21swapper/208:20:482
858907991916,1cyclictest0-21swapper/210:08:142
858907991914,5cyclictest1006-21mta-sts-daemon11:52:512
85890699195,3cyclictest11050irq/107-eth%d12:11:101
85890599193,1cyclictest0-21swapper/009:53:100
85890599193,12cyclictest930460-21apt-key10:21:100
85890599192,15cyclictest865868-21grep08:01:100
85890599192,10cyclictest952851-21ntpq10:48:150
85890599191,6cyclictest0-21swapper/010:43:080
85890799183,14cyclictest1007-21mta-sts-daemon12:03:082
858907991816,1cyclictest0-21swapper/209:43:032
858907991814,3cyclictest950854-21sendmail-msp10:46:132
85890699189,7cyclictest0-21swapper/112:28:071
85890699183,2cyclictest171rcu_preempt10:43:071
85890699182,10cyclictest111788-21systemd-journal11:28:121
85890599184,8cyclictest911607-21ntpq09:58:110
85890599183,13cyclictest961404-21ssh10:58:500
858905991815,2cyclictest191rcuc/011:46:090
85890599180,12cyclictest1012008-21ethtool12:03:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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