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2025-11-14 - 20:07
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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 Nov 14, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2324541994327,7cyclictest0-21swapper/012:32:120
2324541994022,5cyclictest0-21swapper/012:10:040
2324541993933,2cyclictest0-21swapper/012:36:030
2324541993923,2cyclictest0-21swapper/008:05:550
2324541993822,3cyclictest0-21swapper/009:28:050
2324543993727,6cyclictest0-21swapper/110:27:571
2324541993528,3cyclictest0-21swapper/011:03:060
232454399335,8cyclictest171rcu_preempt11:53:001
232454399332,9cyclictest2471204-21/usr/sbin/munin11:33:071
232454499317,6cyclictest171rcu_preempt12:10:522
232454199311,24cyclictest2456236-21grep11:13:000
232454199311,23cyclictest0-21swapper/012:03:050
232454199311,22cyclictest2391950-21latency_hist09:50:510
232454199301,17cyclictest0-21swapper/008:03:020
232454499282,5cyclictest171rcu_preempt08:43:012
2324541992816,10cyclictest2387752-21sendmail-msp09:51:150
232454499272,5cyclictest171rcu_preempt09:58:042
2324541992721,5cyclictest11750irq/162-s-mmc011:51:250
2324541992719,2cyclictest0-21swapper/010:37:560
232454499268,13cyclictest111788-21systemd-journal11:45:532
232454499262,4cyclictest171rcu_preempt09:23:032
2324544992618,4cyclictest0-21swapper/209:43:002
232454399263,8cyclictest11050irq/107-eth%d10:07:541
232454199263,19cyclictest2440904-21ntpq10:53:030
232454199262,23cyclictest0-21swapper/011:25:520
2324541992617,6cyclictest2413844-21ntpq10:17:590
2324541992615,9cyclictest2421272-21fschecks_count10:27:570
2324541992610,5cyclictest0-21swapper/011:34:560
2324541992610,2cyclictest0-21swapper/010:33:050
232454499255,1cyclictest171rcu_preempt11:23:042
232454499251,6cyclictest2509313-21grep12:18:072
2324543992516,8cyclictest2502260-21latency_hist12:10:521
232454499248,13cyclictest1006-21mta-sts-daemon09:30:522
232454499242,16cyclictest1005-21mta-sts-daemon11:30:562
2324543992414,4cyclictest0-21swapper/112:37:561
232454399241,1cyclictest171rcu_preempt12:15:541
232454199249,9cyclictest11650irq/162-mmc010:50:520
232454199243,20cyclictest2403836-21grep10:05:520
2324541992422,1cyclictest0-21swapper/012:28:000
2324541992418,2cyclictest2483526-21grep11:47:590
232454199240,5cyclictest11050irq/107-eth%d10:58:070
232454199240,17cyclictest0-21swapper/010:10:520
232454199232,12cyclictest2372073-21rm09:25:520
232454499229,9cyclictest2408299-21ssh10:11:072
2324544992218,2cyclictest2341238-21unixbench_multi08:03:142
2324544992216,4cyclictest2363661-21fschecks_count09:12:562
232454399225,12cyclictest111788-21systemd-journal10:50:521
232454399221,8cyclictest11050irq/107-eth%d11:50:201
232454399220,4cyclictest171rcu_preempt07:20:511
232454199226,12cyclictest2504384-21ntpq12:13:020
2324541992217,4cyclictest0-21swapper/012:18:030
232454199220,3cyclictest2432834-21/usr/sbin/munin10:43:000
232454199220,2cyclictest2361348-21sed09:03:060
232454499215,4cyclictest2517398-21unixbench-2d12:28:102
2324544992112,7cyclictest2433120-21sh10:42:582
232454399213,15cyclictest2385776-21ntpq09:43:001
232454399210,13cyclictest0-21swapper/112:33:541
232454199214,16cyclictest2410120-21ntp_states10:13:040
232454199212,8cyclictest0-21swapper/011:18:070
2324541992117,3cyclictest0-21swapper/008:52:530
112699210,7rtkit-daemon0-21swapper/107:52:151
112699210,7rtkit-daemon0-21swapper/107:52:151
232454499207,3cyclictest171rcu_preempt09:28:022
232454499207,2cyclictest171rcu_preempt09:18:152
232454499205,3cyclictest11050irq/107-eth%d12:37:142
232454499204,1cyclictest171rcu_preempt10:33:072
232454499204,12cyclictest1005-21mta-sts-daemon07:55:532
232454499201,5cyclictest11050irq/107-eth%d11:52:362
2324544992014,4cyclictest2362040-21cut09:07:562
2324544992014,4cyclictest0-21swapper/210:03:032
232454499200,3cyclictest171rcu_preempt11:43:022
232454399209,6cyclictest762-21in:imuxsock09:30:371
232454399203,3cyclictest171rcu_preempt12:02:571
232454199204,11cyclictest11050irq/107-eth%d07:28:040
232454199203,12cyclictest2479997-21ntpq11:43:020
2324541992015,1cyclictest0-21swapper/008:57:540
112699200,3rtkit-daemon1125-21rtkit-daemon09:17:380
232454499194,2cyclictest171rcu_preempt08:48:032
232454499193,11cyclictest2405416-21ssh10:07:542
2324544991916,2cyclictest2348943-21gltestperf08:28:022
232454399194,8cyclictest0-21swapper/107:15:511
232454399193,3cyclictest171rcu_preempt11:02:591
232454399190,3cyclictest171rcu_preempt11:43:021
232454199195,7cyclictest2324542-21systemd-run07:15:510
232454199193,11cyclictest1006-21mta-sts-daemon11:07:570
2324541991918,1cyclictest0-21swapper/009:42:530
2324541991913,5cyclictest2327244-21ntp_kernel_pll_07:23:010
232454599182,8cyclictest0-21swapper/312:18:033
232454499183,2cyclictest171rcu_preempt11:13:042
232454499183,12cyclictest2341368-21sendmail-msp08:12:552
232454499181,3cyclictest171rcu_preempt08:18:022
232454499181,10cyclictest2315538-1kworker/2:0H+kblockd07:54:242
232454499181,10cyclictest2315538-1kworker/2:0H+kblockd07:54:242
232454399184,12cyclictest2372075-21latency_hist09:25:521
232454399182,2cyclictest171rcu_preempt08:28:061
232454399182,1cyclictest171rcu_preempt12:27:101
2324543991815,2cyclictest2358811-21gltestperf08:57:571
2324543991814,3cyclictest0-21swapper/110:13:081
2324543991810,7cyclictest0-21swapper/109:32:541
232454199189,6cyclictest2466092-21sendmail-msp11:28:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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