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2025-11-17 - 21:36
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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 Mon Nov 17, 2025 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24773899562,36cyclictest0-21swapper/010:15:540
24773899453,35cyclictest395053-21sendmail-msp11:25:560
24773899451,29cyclictest448231-21grep12:23:020
247738994421,8cyclictest0-21swapper/010:54:020
24773899432,28cyclictest0-21swapper/012:16:310
247738994322,7cyclictest290112-21/usr/sbin/munin09:18:080
24773899431,37cyclictest0-21swapper/012:29:410
247738994118,2cyclictest0-21swapper/011:32:340
24773899411,2cyclictest0-21swapper/011:42:580
24773899392,10cyclictest346001-21sendmail-msp10:26:010
24773899364,27cyclictest418561-21entropy11:52:580
24774099353,8cyclictest451207-21ssh12:25:592
247740993524,9cyclictest336100-21ssh10:13:192
24773899330,32cyclictest392890-21ntpq11:23:010
247739993210,7cyclictest11050irq/107-eth%d10:52:191
24773899321,24cyclictest0-21swapper/012:42:560
24774099317,16cyclictest310774-21ssh09:43:022
24773999310,6cyclictest0-21swapper/112:28:041
247738993122,8cyclictest329375-21sendmail-msp10:08:310
24773899310,24cyclictest343305-21fschecks_count10:22:580
24774099302,4cyclictest0-21swapper/211:34:432
247738993018,0cyclictest0-21swapper/009:52:210
24774099294,6cyclictest0-21swapper/211:45:592
247740992921,6cyclictest298406-21threads09:28:092
24773999293,6cyclictest11050irq/107-eth%d11:33:071
24773999293,4cyclictest171rcu_preempt12:31:271
24774099282,8cyclictest305612-21/usr/sbin/munin09:38:082
247739992816,6cyclictest11050irq/107-eth%d10:25:581
24773899282,2cyclictest0-21swapper/011:50:540
24773899281,1cyclictest0-21swapper/010:32:560
24773999272,7cyclictest396472-21ssh11:27:571
24773899277,16cyclictest0-21swapper/009:23:020
24773899274,2cyclictest325328-21latency_hist10:00:550
24773899271,5cyclictest380918-21/usr/sbin/munin11:08:130
24773899271,19cyclictest458457-21/usr/sbin/munin12:33:040
112699270,3rtkit-daemon1125-21rtkit-daemon07:31:041
24774099264,6cyclictest0-21swapper/209:50:412
24773999261,11cyclictest288043-21ssh09:16:171
247739992610,12cyclictest417700-21ssh11:52:001
24773899264,16cyclictest2243333-21munin-node10:59:400
24774099252,6cyclictest11050irq/107-eth%d10:15:542
247738992520,0cyclictest0-21swapper/009:48:090
24773899251,19cyclictest306263-21/usr/sbin/munin09:38:010
24773899250,3cyclictest356414-21ntp_kernel_pll_10:38:020
247740992421,2cyclictest360779-21unixbench_singl10:43:082
24774099241,4cyclictest171rcu_preempt12:18:042
24773999247,14cyclictest1005-21mta-sts-daemon10:15:561
24773999245,12cyclictest619-21mta-sts-daemon09:30:591
24773999240,8cyclictest293794-21/usr/sbin/munin09:23:021
24773899242,2cyclictest0-21swapper/010:43:020
24773899242,20cyclictest0-21swapper/011:14:500
247738992420,3cyclictest0-21swapper/009:03:030
247738992414,1cyclictest0-21swapper/009:30:540
247738992411,9cyclictest1005-21mta-sts-daemon10:45:570
24774099236,12cyclictest619-21mta-sts-daemon11:05:592
24774099234,13cyclictest378122-21sendmail-msp11:10:552
24774099233,18cyclictest111788-21systemd-journal09:52:562
24774099231,6cyclictest171rcu_preempt12:08:102
24774099230,5cyclictest0-21swapper/211:23:012
247739992311,10cyclictest310766-21ntpq09:43:021
247738992319,0cyclictest0-21swapper/012:08:080
24774099223,4cyclictest11050irq/107-eth%d11:03:062
24773999224,14cyclictest443126-21ssh12:18:021
24773999223,15cyclictest111788-21systemd-journal11:13:371
247739992213,6cyclictest430813-21sendmail-msp12:05:541
24773899223,18cyclictest311337-21grep09:43:090
247738992217,0cyclictest0-21swapper/012:38:070
247738992212,5cyclictest0-21swapper/011:38:030
24773899221,16cyclictest0-21swapper/010:13:190
24774099219,9cyclictest259-21jbd2/mmcblk0p2-812:10:552
24774099215,12cyclictest619-21mta-sts-daemon10:48:062
247740992119,1cyclictest0-21swapper/207:58:092
247740992117,3cyclictest0-21swapper/210:23:042
247740992116,4cyclictest254886-21fschecks_time07:37:592
24773899213,6cyclictest435699-21ssh12:10:550
247738992118,2cyclictest423643-21memory11:58:000
24773899211,12cyclictest0-21swapper/010:02:590
112699210,1rtkit-daemon0-21swapper/108:10:231
24774099206,7cyclictest619-21mta-sts-daemon12:01:162
24774099204,14cyclictest11050irq/107-eth%d09:55:552
247740992015,2cyclictest0-21swapper/210:33:082
247740992014,4cyclictest0-21swapper/212:22:592
24774099201,2cyclictest0-21swapper/211:41:172
24773999201,16cyclictest298051-21ntp_kernel_pll_09:28:031
24774099194,2cyclictest11050irq/107-eth%d10:38:022
24774099191,15cyclictest396720-21fschecks_time11:28:002
24773999199,7cyclictest1008-21mta-sts-daemon10:50:461
24773999196,10cyclictest111788-21systemd-journal10:09:321
24773999194,11cyclictest423806-21ntpq11:58:021
24773999192,7cyclictest0-21swapper/110:22:581
247739991914,3cyclictest0-21swapper/111:23:071
24773999191,3cyclictest11050irq/107-eth%d09:37:591
24773899196,11cyclictest11650irq/162-mmc009:07:030
247738991910,2cyclictest264128-21sed08:03:080
24774199181,8cyclictest0-21swapper/311:34:433
24774099189,5cyclictest0-21swapper/209:23:052
24774099185,8cyclictest300686-21ssh09:31:292
24774099184,11cyclictest418633-21grep11:53:002
24774099182,3cyclictest171rcu_preempt08:53:042
24774099182,12cyclictest390953-21cat11:20:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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