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2025-08-27 - 14:34
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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 Wed Aug 27, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3313798995220,6cyclictest3407431-21sendmail-msp10:24:470
331379899481,10cyclictest0-21swapper/012:09:450
331379899411,8cyclictest3430658-21ssh10:54:480
3313798993822,3cyclictest3394322-21mailstats10:07:250
3313798993729,3cyclictest0-21swapper/011:29:460
331379899364,26cyclictest0-21swapper/009:26:040
331379899344,2cyclictest3483974-21ntpq11:57:220
3313798993410,2cyclictest0-21swapper/011:37:210
331379899331,24cyclictest3397919-21ntpq10:12:210
3313799992913,4cyclictest171rcu_preempt11:26:151
3313798992919,1cyclictest0-21swapper/010:46:290
3313798992918,3cyclictest3347714-21fschecks_time08:57:170
3313798992918,1cyclictest0-21swapper/008:04:450
331379999287,18cyclictest1006-21mta-sts-daemon11:57:221
331379899272,22cyclictest0-21swapper/012:06:460
3313798992718,0cyclictest0-21swapper/009:22:240
331380099269,9cyclictest1007-21mta-sts-daemon12:34:442
3313800992619,5cyclictest3319255-21cut07:32:172
331379999267,14cyclictest1006-21mta-sts-daemon10:54:481
331379999261,16cyclictest3397985-21ntpq10:12:221
331379899269,4cyclictest0-21swapper/009:37:270
331379899261,3cyclictest3509308-21wc12:22:170
331379899261,19cyclictest3527133-21cron12:39:420
3313798992611,3cyclictest3413192-21fschecks_count10:32:160
331379999256,2cyclictest171rcu_preempt09:57:211
3313799992519,4cyclictest3411670-21cron10:29:431
331379899252,17cyclictest0-21swapper/011:27:180
331379899252,11cyclictest3439438-21cut11:07:150
331380099244,12cyclictest111788-21systemd-journal08:04:452
331379899241,4cyclictest3479462-21grep11:52:270
331380099239,11cyclictest762-21in:imuxsock10:25:192
331379999236,13cyclictest111788-21systemd-journal09:26:041
331379999235,16cyclictest3365590-21ssh09:29:451
331379899233,18cyclictest0-21swapper/012:03:170
3313798992322,1cyclictest0-21swapper/012:32:200
3313799992216,2cyclictest3405028-21cpuspeed10:22:181
331379999221,4cyclictest0-21swapper/112:09:451
3313798992218,2cyclictest3401417-21ssh10:17:190
3313798992212,1cyclictest0-21swapper/011:15:460
3313798992211,8cyclictest3330271-21sendmail-msp08:04:430
331380099214,1cyclictest11050irq/107-eth%d09:37:212
331380099214,1cyclictest0-21swapper/209:32:372
331379899219,2cyclictest3503948-21tune2fs12:17:180
331379899211,9cyclictest0-21swapper/009:42:270
331379899210,1cyclictest3474038-21ssh11:47:240
331379899210,14cyclictest3417779-21/usr/sbin/munin10:37:260
331380099203,13cyclictest3397988-21ssh10:12:222
3313800992013,5cyclictest0-21swapper/209:57:212
3313799992013,6cyclictest1006-21mta-sts-daemon12:01:081
331379899203,14cyclictest3407573-21ls10:24:430
331379899203,13cyclictest3313754-21munin-run07:14:420
331379899202,17cyclictest191rcuc/008:42:170
331379899202,14cyclictest0-21swapper/010:42:190
3313798992016,1cyclictest0-21swapper/011:42:180
3313798992014,4cyclictest0-21swapper/009:17:250
331379899201,2cyclictest3378338-21fschecks_count09:47:180
331379899200,15cyclictest0-21swapper/011:22:190
331380099193,12cyclictest3473816-21ssh11:47:212
331380099192,11cyclictest3509420-21sh12:22:182
331379999194,8cyclictest3416740-21ssh10:37:171
331379999193,4cyclictest11050irq/107-eth%d09:22:141
331379999191,14cyclictest3319280-21cut07:32:181
331379899194,9cyclictest3511751-21sendmail-msp12:25:330
3313798991918,1cyclictest0-21swapper/008:37:150
331380099183,10cyclictest619-21mta-sts-daemon09:25:382
331379999185,10cyclictest3517564-21ssh12:30:341
331379999184,9cyclictest3356023-21ssh09:17:251
331379999182,10cyclictest111788-21systemd-journal10:04:421
3313799991815,2cyclictest0-21swapper/108:44:431
3313799991814,3cyclictest0-21swapper/111:29:461
3313799991810,6cyclictest271ktimers/108:04:451
331379899181,8cyclictest3382602-21ntpq09:52:230
3313798991814,2cyclictest3444289-21ntpq11:12:230
331379899181,1cyclictest3364993-21apt-get09:29:450
331379899180,18cyclictest0-21swapper/009:55:270
112699180,0rtkit-daemon0-21swapper/109:51:101
331380099176,5cyclictest3440115-21ssh11:07:212
331380099174,8cyclictest3401824-21ssh10:17:222
331380099174,10cyclictest3430648-21ssh10:54:472
331380099173,12cyclictest3488676-21/usr/sbin/munin12:02:192
331380099173,12cyclictest0-21swapper/207:14:422
331380099173,10cyclictest3358963-21/usr/sbin/munin09:22:152
331380099172,3cyclictest3513655-21/usr/sbin/munin12:27:152
331380099172,11cyclictest3324185-21/usr/sbin/munin07:47:182
331380099171,7cyclictest3532351-21latency_hist12:44:432
331380099171,15cyclictest3336087-21fschecks_count08:22:182
331379999178,5cyclictest3504590-21/usr/sbin/munin12:17:241
331379999173,12cyclictest271ktimers/108:49:391
331379999171,11cyclictest3511751-21sendmail-msp12:25:001
331379999171,11cyclictest3326818-21sed07:52:351
3313799991710,4cyclictest111788-21systemd-journal07:24:431
331379899179,3cyclictest0-21swapper/011:02:230
331379899172,11cyclictest3315069-21/usr/sbin/munin07:17:280
3313798991714,2cyclictest3350383-21cron09:04:420
3313798991711,5cyclictest3352760-21gltestperf09:12:180
331379899170,1cyclictest0-21swapper/012:44:430
112699170,3rtkit-daemon0-21swapper/210:42:292
331380099167,7cyclictest3479155-21/usr/sbin/munin11:52:262
331380099165,8cyclictest111788-21systemd-journal12:06:242
331380099163,8cyclictest3326606-21/usr/sbin/munin07:52:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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