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2025-11-16 - 19:36
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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 Sun Nov 16, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238719099495,32cyclictest0-21swapper/012:20:540
238719099407,18cyclictest14-21ksoftirqd/009:38:010
238719099370,22cyclictest0-21swapper/010:35:490
2387190993620,12cyclictest2551354-21sendmail-msp11:51:300
2387192993430,2cyclictest1005-21mta-sts-daemon11:38:222
2387190993423,9cyclictest111788-21systemd-journal10:48:050
2387191993322,8cyclictest762-21in:imuxsock12:32:141
238719299324,19cyclictest2586112-21apt-get12:20:532
238719099321,25cyclictest2472886-21ssh10:11:090
238719299315,7cyclictest171rcu_preempt11:50:582
2387191992920,6cyclictest0-21swapper/111:31:021
238719099294,19cyclictest2600385-21ssh12:34:010
238719099293,16cyclictest2565943-21cat12:00:540
2387190992925,3cyclictest0-21swapper/011:38:200
2387190992925,1cyclictest0-21swapper/012:43:030
238719099290,25cyclictest0-21swapper/008:25:590
238719099290,25cyclictest0-21swapper/008:25:590
238719099289,4cyclictest14-21ksoftirqd/009:57:550
238719099283,21cyclictest2424925-21awk09:08:080
238719099283,21cyclictest2424925-21awk09:08:080
238719199274,20cyclictest1008-21mta-sts-daemon09:38:011
238719099271,5cyclictest2531730-21df11:22:560
238719099266,4cyclictest211irq_work/010:00:560
238719099265,14cyclictest11050irq/107-eth%d10:53:040
238719099262,3cyclictest0-21swapper/009:28:240
238719099262,18cyclictest2582773-21head12:17:560
238719099261,9cyclictest2413527-21apt-get08:35:560
238719099261,9cyclictest2413527-21apt-get08:35:560
238719099252,9cyclictest0-21swapper/011:48:040
2387190992524,1cyclictest0-21swapper/012:08:080
238719099251,23cyclictest2528056-21awk11:18:020
2387190992511,3cyclictest0-21swapper/010:22:580
238719299243,17cyclictest111788-21systemd-journal09:08:082
238719299243,17cyclictest111788-21systemd-journal09:08:082
238719099249,5cyclictest14-21ksoftirqd/008:35:530
2387190992414,1cyclictest171rcu_preempt10:43:230
2387190992414,1cyclictest171rcu_preempt10:43:230
238719099241,23cyclictest0-21swapper/011:13:060
238719099241,1cyclictest0-21swapper/007:42:570
238719299232,17cyclictest2396530-21ld07:43:052
2387190992321,1cyclictest0-21swapper/012:38:000
2387190992318,1cyclictest0-21swapper/011:03:030
238719099231,6cyclictest2538649-21apt-get11:31:000
2387190992313,3cyclictest2536795-21/usr/sbin/munin11:28:100
238719299225,14cyclictest111788-21systemd-journal10:53:042
2387192992213,5cyclictest0-21swapper/209:48:012
238719199224,13cyclictest111788-21systemd-journal10:47:431
238719099222,19cyclictest191rcuc/008:52:590
238719099221,4cyclictest2478683-21ntpq10:18:050
2387190992214,2cyclictest2494855-21gltestperf10:37:580
2387192992110,7cyclictest0-21swapper/211:03:022
238719199215,12cyclictest2608421-21/usr/sbin/munin12:43:041
238719199214,13cyclictest111788-21systemd-journal12:29:331
2387191992114,4cyclictest259-21jbd2/mmcblk0p2-812:13:031
238719099212,7cyclictest0-21swapper/009:53:030
2387190992119,0cyclictest0-21swapper/009:18:020
2387190992116,3cyclictest2410134-21unixbench_multi08:23:080
238719299202,13cyclictest2576182-21latency_hist12:10:542
238719299202,12cyclictest2416118-21fschecks_time08:43:172
2387192992016,2cyclictest0-21swapper/208:05:532
238719199204,14cyclictest619-21mta-sts-daemon08:35:561
238719199204,14cyclictest619-21mta-sts-daemon08:35:561
238719199202,12cyclictest2545314-21rm11:38:201
238719099209,7cyclictest0-21swapper/007:15:530
238719099205,10cyclictest2519875-21ssh11:08:060
2387192991914,4cyclictest2451466-21cron09:45:532
238719199194,7cyclictest2506771-21ssh10:52:561
238719199193,14cyclictest2474448-21ssh10:13:041
238719099195,10cyclictest0-21swapper/012:03:030
238719099191,2cyclictest2406306-21/usr/sbin/munin08:13:020
238719099190,18cyclictest2433213-21needreboot09:23:010
238719399184,9cyclictest0-21swapper/312:20:543
238719399183,8cyclictest0-21swapper/311:45:543
238719299189,8cyclictest762-21in:imuxsock09:52:452
238719299183,9cyclictest2551354-21sendmail-msp11:45:542
2387192991814,2cyclictest2423644-21unixbench_multi09:03:082
238719299180,14cyclictest2568404-21/usr/sbin/munin12:03:032
238719199181,13cyclictest2410255-21sendmail-msp08:32:561
238719199181,10cyclictest2512139-21/usr/sbin/munin10:58:091
238719099187,2cyclictest2416162-21head08:43:180
2387190991817,1cyclictest0-21swapper/012:13:020
2387190991816,1cyclictest2548564-21aten_r2power_po11:42:570
2387190991814,2cyclictest2596714-21latency_hist12:30:530
2387190991814,0cyclictest0-21swapper/009:48:030
238719099180,3cyclictest2427043-21cron09:15:530
238719299173,9cyclictest2391542-21collect207:28:022
238719299173,7cyclictest2387151-21munin-run07:15:532
238719299173,10cyclictest1007-21mta-sts-daemon10:27:562
238719299172,13cyclictest2594072-21ssh12:28:072
2387192991713,3cyclictest2490651-21fschecks_time10:33:012
238719299171,14cyclictest2519297-21cut11:08:002
238719199175,9cyclictest2494951-21/usr/sbin/munin10:37:581
238719199174,10cyclictest1008-21mta-sts-daemon07:43:051
238719199172,2cyclictest2583306-21ssh12:18:001
238719199172,11cyclictest2568377-21ntpq12:03:021
238719199171,6cyclictest11050irq/107-eth%d10:23:091
2387191991713,2cyclictest0-21swapper/109:28:271
2387191991712,3cyclictest2406838-21unixbench_multi08:13:101
2387191991711,4cyclictest0-21swapper/112:22:551
238719199170,8cyclictest2397289-1kworker/1:2H+kblockd09:05:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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