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2025-11-16 - 06:47
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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 Sun Nov 16, 2025 00:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3380688996033,6cyclictest14-21ksoftirqd/021:48:380
3380688995513,30cyclictest0-21swapper/000:07:030
3380688995032,3cyclictest0-21swapper/021:23:010
338068899414,14cyclictest3603882-21ssh00:37:590
3380688994020,11cyclictest3557779-21ntp_states23:43:020
3380688993725,3cyclictest0-21swapper/021:43:030
3380688993614,19cyclictest151ktimers/019:15:530
338068899353,7cyclictest3527334-21latency_hist23:10:530
338069099315,19cyclictest3578151-21sendmail-msp00:06:022
338068899312,8cyclictest3460012-21ntpq21:58:020
3380688993121,1cyclictest0-21swapper/000:45:530
338068899311,23cyclictest0-21swapper/000:22:560
338068899311,22cyclictest111788-21systemd-journal21:52:480
338068899303,2cyclictest0-21swapper/023:45:580
3380689992915,10cyclictest1008-21mta-sts-daemon00:07:021
338068899293,7cyclictest3529690-21ntpq23:13:030
3380688992919,3cyclictest0-21swapper/019:42:590
3380688992918,3cyclictest0-21swapper/000:12:580
338068899291,21cyclictest3570918-21grep23:57:580
338068899272,2cyclictest171rcu_preempt22:13:100
3380688992714,2cyclictest0-21swapper/022:22:560
338068899271,21cyclictest3392480-21latency_hist19:50:550
338068899271,20cyclictest0-21swapper/021:37:560
338068899270,20cyclictest3505673-21/usr/sbin/munin22:48:090
3380690992617,6cyclictest0-21swapper/223:35:572
338068899268,15cyclictest1008-21mta-sts-daemon00:20:150
338068899262,20cyclictest111788-21systemd-journal23:53:090
3380688992615,5cyclictest0-21swapper/022:32:570
3380688992615,5cyclictest0-21swapper/022:32:570
338068999253,16cyclictest3478832-21ssh22:18:011
338068899253,4cyclictest171rcu_preempt22:28:290
3380688992517,6cyclictest0-21swapper/019:51:000
338068899251,18cyclictest0-21swapper/022:42:590
338068899250,4cyclictest191rcuc/022:40:520
338068899250,3cyclictest171rcu_preempt22:53:080
338068899250,1cyclictest0-21swapper/021:15:530
338069099248,12cyclictest111788-21systemd-journal22:45:532
3380690992414,4cyclictest3560035-21sendmail-msp23:45:582
338068999247,13cyclictest259-21jbd2/mmcblk0p2-820:30:571
338068899249,8cyclictest0-21swapper/023:33:020
338068899248,5cyclictest3436786-21ntpq21:33:030
338068899246,3cyclictest0-21swapper/023:28:010
338068899246,3cyclictest0-21swapper/023:28:010
338068899243,4cyclictest11050irq/107-eth%d23:40:470
3380690992314,5cyclictest0-21swapper/222:58:042
338068999233,5cyclictest3380687-21cyclictest19:15:531
3380688992313,9cyclictest11050irq/107-eth%d21:27:120
112699230,1rtkit-daemon1125-21rtkit-daemon23:22:142
338069099224,16cyclictest3454787-21/usr/sbin/munin21:52:572
3380690992216,3cyclictest3482930-21fschecks_time22:22:582
338068899223,4cyclictest171rcu_preempt23:03:000
3380688992222,0cyclictest0-21swapper/023:20:520
112699220,3rtkit-daemon1125-21rtkit-daemon20:09:062
338069099213,10cyclictest11050irq/107-eth%d21:46:062
3380690992116,4cyclictest0-21swapper/223:08:002
3380690992114,5cyclictest3430052-21latency_hist21:25:532
338068999213,14cyclictest111788-21systemd-journal20:08:341
338068999211,5cyclictest3604714-21grep00:38:121
338068899217,9cyclictest0-21swapper/020:18:050
338068899212,13cyclictest3469537-21ssh22:08:060
3380688992120,1cyclictest0-21swapper/019:38:050
3380688992118,2cyclictest0-21swapper/022:18:000
3380688992110,8cyclictest0-21swapper/000:28:040
338068899210,20cyclictest3399666-21fschecks_count20:12:590
338069099205,12cyclictest3596136-21tail00:27:562
3380690992017,2cyclictest3403042-21fschecks_time20:22:582
3380690992014,3cyclictest3566377-21fschecks_count23:53:022
338068999205,6cyclictest3427660-21ntpq21:23:011
338069099195,11cyclictest3518538-21ssh23:01:172
338069099194,11cyclictest3457813-21ssh21:55:532
338069099191,6cyclictest0-21swapper/222:12:552
3380690991916,2cyclictest0-21swapper/219:27:592
3380690991915,3cyclictest3408337-21fschecks_time20:37:592
3380690991913,4cyclictest3419830-21fschecks_time21:12:572
338069099190,6cyclictest0-21swapper/223:59:072
338068999196,8cyclictest3504241-21sendmail-msp22:45:531
338068999194,4cyclictest3492735-21ntpq22:33:031
338068999194,4cyclictest3492735-21ntpq22:33:031
338068999192,9cyclictest3550313-21apt-get23:35:541
3380689991913,5cyclictest3518871-21ssh23:01:501
338068899194,11cyclictest762-21in:imuxsock21:05:530
338068899191,15cyclictest3578145-21dpkg00:05:530
338069099189,6cyclictest3423278-21ntpq21:18:072
338069099182,9cyclictest1008-21mta-sts-daemon23:27:112
338069099182,9cyclictest1008-21mta-sts-daemon23:27:112
338069099181,6cyclictest3522723-21sendmail-msp23:13:022
3380690991814,3cyclictest3402345-21unixbench_multi20:18:092
338069099181,3cyclictest3557847-21ssh23:43:032
338068999188,1cyclictest3486321-21ssh22:26:261
338068999186,10cyclictest3448415-21sendmail-msp21:45:561
338068999185,9cyclictest3423239-21/usr/sbin/munin21:18:061
338068999185,7cyclictest3459656-21/usr/sbin/munin21:57:591
338068999182,8cyclictest3448415-21sendmail-msp21:53:031
338068999182,12cyclictest3541460-21sendmail-msp23:30:531
338068999182,11cyclictest3472852-21ssh22:12:201
3380689991813,4cyclictest1006-21mta-sts-daemon19:23:021
338068899184,11cyclictest3595006-21sendmail-msp00:32:540
3380688991816,1cyclictest3423511-21switchtime21:18:110
3380688991815,2cyclictest1006-21mta-sts-daemon20:08:020
338068899181,10cyclictest0-21swapper/023:22:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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