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2026-05-21 - 22:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 highest latencies:
System rackeslot8.osadl.org (updated Thu May 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24790062310,2sleep0222-21plymouthd08:50:170
24145082280,4sleep087-1kworker/0:1H+kblockd08:00:010
2348411992825,1cyclictest0-21swapper/309:00:023
2348411992522,1cyclictest0-21swapper/312:15:013
2348411992522,1cyclictest0-21swapper/311:35:003
2348411992421,1cyclictest0-21swapper/310:00:013
2348411992421,1cyclictest0-21swapper/309:34:363
2348411992320,1cyclictest0-21swapper/312:25:003
234841199211,14cyclictest2568151-21taskset09:50:003
2348411992017,1cyclictest0-21swapper/309:20:223
234841199201,15cyclictest2358422-21taskset07:15:173
234841199192,13cyclictest2780643-21taskset12:04:563
2348411991916,1cyclictest0-21swapper/310:40:003
2348411991916,1cyclictest0-21swapper/310:10:253
2348411991916,1cyclictest0-21swapper/308:41:573
234841199191,14cyclictest2630300-21taskset10:28:173
234841199191,14cyclictest2354390-21taskset07:10:443
234841199191,13cyclictest2835111-21taskset12:38:123
234841199191,13cyclictest2835111-21taskset12:38:113
234841199191,13cyclictest2685635-21taskset11:03:503
234841199191,13cyclictest2401714-21sleep07:54:563
234841199191,13cyclictest2376304-21taskset07:30:013
25734092181,5sleep02573446-21ntpq09:50:230
234841199182,12cyclictest2383708-21taskset07:35:143
234841199182,11cyclictest25918572sleep310:05:133
2348411991815,1cyclictest0-21swapper/312:10:003
2348411991815,1cyclictest0-21swapper/311:25:003
2348411991815,1cyclictest0-21swapper/310:15:513
2348411991815,1cyclictest0-21swapper/309:36:073
234841199181,13cyclictest2803191-21taskset12:17:063
234841199181,13cyclictest2756693-21taskset11:49:053
234841199181,13cyclictest2749131-21taskset11:44:553
234841199181,13cyclictest2670555-21chrt10:55:113
234841199181,13cyclictest2669727-21taskset10:53:443
234841199181,13cyclictest2633413-21taskset10:30:193
234841199181,13cyclictest2566475-21taskset09:46:083
234841199181,13cyclictest2534424-21taskset09:27:313
234841199181,13cyclictest2517965-21taskset09:15:323
234841199181,13cyclictest2395093-21taskset07:42:403
234841199181,13cyclictest2375697-21taskset07:25:273
234841199181,13cyclictest2363539-21taskset07:20:073
234841199181,12cyclictest2414399-21taskset07:59:553
234841199180,14cyclictest2819286-21taskset12:28:013
234841199180,14cyclictest2764627-21taskset11:54:133
234841199176,8cyclictest25038702sleep309:10:003
234841199172,12cyclictest2725239-21taskset11:29:203
234841199172,12cyclictest2452509-21taskset08:27:223
234841199172,12cyclictest2430370-21taskset08:10:183
2348411991714,1cyclictest0-21swapper/308:35:143
2348411991714,1cyclictest0-21swapper/308:25:003
2348411991714,1cyclictest0-21swapper/307:45:183
234841199171,13cyclictest2692646-21taskset11:06:263
234841199171,13cyclictest2653035-21taskset10:41:053
234841199171,13cyclictest2510872-21taskset09:12:403
234841199171,12cyclictest2770579-21taskset11:55:223
234841199171,12cyclictest2694338-21chrt11:10:113
234841199171,12cyclictest2552548-21chrt09:40:113
234841199171,12cyclictest2552548-21chrt09:40:103
234841199171,12cyclictest2491354-21taskset09:00:093
234841199171,12cyclictest2478876-21taskset08:50:143
234841199171,12cyclictest2458738-21taskset08:30:383
234841199171,12cyclictest2439584-21taskset08:15:443
234841199171,12cyclictest2426930-21taskset08:06:493
234841199171,12cyclictest2419950-21taskset08:00:233
234841199170,14cyclictest2587467-21taskset10:00:193
234841199170,13cyclictest2709745-21turbostat11:20:003
27074932160,9sleep12707522-21ntp_states11:15:241
2348411991613,1cyclictest0-21swapper/312:30:183
234841199161,12cyclictest2734140-21taskset11:35:183
234841199161,12cyclictest2477926-21taskset08:45:423
234841199161,11cyclictest2654764-21taskset10:45:053
234841199160,12cyclictest2621419-21taskset10:20:363
24342192141,5sleep02434432-21cut08:15:180
6881130,3low-memory-moni2544078-21dpkg-deb09:34:591
26858382130,7sleep22685844-21ssh11:04:222
25756332130,4sleep12575639-21ssh09:54:531
25678932120,9sleep22568149-21cat09:50:012
23911282120,9sleep12392897-21cut07:40:181
23538792121,3sleep12353929-21ps07:10:241
6881110,2low-memory-moni2544077-21dpkg-deb09:34:582
27495032111,3sleep0222-21plymouthd11:45:130
27484352110,1sleep20-21swapper/211:42:582
27042232111,7sleep02705913-21grep11:15:190
26966762110,8sleep12698376-21tr11:10:181
26784942112,5sleep02678527-21apt-get11:00:110
26616602110,7sleep072-21kcompactd010:48:130
25120492112,5sleep22512082-21apt-get09:15:122
24721452111,6sleep12472178-21apt-get08:45:121
23901182111,6sleep02391126-21kthreadcore07:40:170
28106222100,3sleep12810628-21ssh12:20:551
27977032101,6sleep22798535-21cut12:15:182
27888422100,3sleep2222-21plymouthd12:10:102
27240642100,7sleep10-21swapper/111:26:031
26859332100,3sleep12685939-21ssh11:04:371
26678112101,7sleep12667892-21ntp_kernel_err10:50:211
26293312100,5sleep22629337-21ssh10:25:492
25905112100,7sleep02590516-21sh10:02:140
25506262101,6sleep12550634-21ssh09:35:441
25144722101,2sleep1171rcu_preempt09:15:191
24901382102,4sleep02490179-21ntpq08:55:220
24595442101,6sleep12459657-21fw_packets08:35:141
24466502101,5sleep12446653-21apt-get08:25:131
24134602101,6sleep22413501-21ntpq07:55:222
23970162100,7sleep02398740-21cut07:45:190
23821652101,2sleep20-21swapper/207:31:142
23759002100,3sleep1222-21plymouthd07:28:071
23740562100,1sleep20-21swapper/207:25:182
786190,4gdbus2629960-21fwupdmgr10:27:320
2835623290,6sleep22835627-21ssh12:39:372
2835623290,6sleep22835627-21ssh12:39:362
2835379290,2sleep0222-21plymouthd12:38:530
2835379290,2sleep0222-21plymouthd12:38:530
2820771291,5sleep12821306-21cut12:30:171
2786682291,5sleep02786871-21/usr/sbin/munin12:05:260
2774216290,6sleep02775160-21tr12:00:170
2772677290,7sleep22772685-21ssh11:59:422
2757350291,4sleep0222-21plymouthd11:50:110
2738898291,5sleep02738992-21ntpq11:35:230
2716287290,7sleep12716295-21ssh11:21:211
2676277290,6sleep12676440-21ssh10:55:271
2670549291,5sleep22670547-21apt-get10:55:112
2670005290,6sleep22670011-21ssh10:54:282
2663062290,6sleep02663414-21cut10:50:160
2657244291,5sleep22658933-21kthreadcore10:45:172
2639159290,6sleep0222-21plymouthd10:35:130
2615825291,5sleep02615957-21ps10:20:180
2606333291,2sleep22606337-21ssh10:12:392
2606298290,6sleep12606303-21sh10:12:301
2552496290,6sleep12552511-21cat09:40:091
2552496290,6sleep12552511-21cat09:40:091
2551988290,7sleep2222-21plymouthd09:39:262
2551556290,2sleep0222-21plymouthd09:38:200
2543255290,6sleep02543232-21dpkg09:34:470
2535167290,7sleep12534892-21kworker/u16:2+rpciod09:29:341
2526635290,2sleep2222-21plymouthd09:22:472
2491392291,4sleep12491389-21apt-get09:00:131
2465816290,2sleep2222-21plymouthd08:40:122
2453019291,4sleep0222-21plymouthd08:30:120
2426140294,2sleep22354651-21kworker/u16:3+writeback08:05:212
2394964290,2sleep2222-21plymouthd07:41:082
2388548290,2sleep0222-21plymouthd07:36:170
2364952290,6sleep12364984-21kthreadcore07:20:181
2354568290,2sleep2222-21plymouthd07:13:062
23484119997,1cyclictest0-21swapper/307:10:013
2343252294,2sleep12344304-21kthreadcore07:05:181
688180,2low-memory-moni0-21swapper/110:27:321
2834397281,4sleep12834403-21ssh12:36:141
2834397281,4sleep12834403-21ssh12:36:141
2819036280,2sleep0222-21plymouthd12:27:230
2810831281,4sleep22810835-21ssh12:21:282
2802022281,4sleep02802068-21ntpq12:15:240
2788404281,4sleep22788410-21ssh12:09:412
2780996282,3sleep12781028-21apt-get12:05:111
2708288280,2sleep22708294-21ssh11:16:052
2694296281,4sleep22694333-21apt-get11:10:112
2693042280,2sleep2171rcu_preempt11:07:342
2661846280,1sleep1222-21plymouthd10:48:411
2653613280,5sleep12653615-21ssh10:42:401
2649328281,5sleep20-21swapper/210:40:172
2637146280,2sleep12637152-21ssh10:30:341
2635224281,4sleep02636338-21memory10:30:200
2593313280,5sleep12594964-21kthreadcore10:05:191
2585785280,5sleep22587464-21kthreadcore10:00:192
2560365281,3sleep02560402-21apt-get09:45:130
2533038281,4sleep02533074-21ntpq09:25:210
2519927281,4sleep00-21swapper/009:20:110
2496710282,3sleep2222-21plymouthd09:00:252
2490698280,1sleep20-21swapper/208:55:442
2483730281,3sleep22483774-21ntpq08:50:232
2470990281,4sleep02471031-21ntp_states08:40:230
2453020281,4sleep12453177-21diskstats08:30:131
2440210282,3sleep12440242-21apt-get08:20:111
2420640280,2sleep0222-21plymouthd08:03:060
2417023280,5sleep12417745-21kthreadcore08:00:181
2408831281,4sleep12409741-21irqstats07:55:181
2388679280,4sleep1222-21plymouthd07:37:411
2353835280,5sleep02353878-21ntp_states07:10:230
2347938281,3sleep0222-21plymouthd07:05:450
2826374270,1sleep00-21swapper/012:30:560
2825754271,3sleep2222-21plymouthd12:30:262
2806004270,4sleep02806867-21cut12:20:180
2771487270,4sleep1222-21plymouthd11:56:251
2763991271,3sleep2222-21plymouthd11:52:332
2762547270,3sleep12762589-21ntpq11:50:191
2749454270,1sleep12749458-21ssh11:45:061
2746740271,4sleep02746861-21ntpq11:40:210
2733696272,3sleep22733735-21apt-get11:35:142
2731727270,1sleep00-21swapper/011:30:300
2717968271,3sleep02717971-21apt-get11:25:120
2692401270,4sleep1222-21plymouthd11:05:501
2677907271,3sleep0222-21plymouthd10:59:270
2645094270,5sleep22503893-21diskmemload10:35:472
2638749270,1sleep20-21swapper/210:34:562
2622700270,1sleep10-21swapper/110:24:081
2583370270,1sleep0222-21plymouthd09:59:290
2577723270,4sleep12579315-21tr09:55:171
2566918271,3sleep12566922-21ssh09:47:231
2559296271,3sleep0222-21plymouthd09:42:540
2559296271,3sleep0222-21plymouthd09:42:530
2552512271,3sleep2222-21plymouthd09:40:112
2552512271,3sleep2222-21plymouthd09:40:102
2527792271,2sleep22527829-21apt-get09:25:102
2526397270,1sleep12526399-21ssh09:22:101
2505651271,3sleep12507121-21kthreadcore09:10:191
2503718270,1sleep10-21swapper/109:08:021
2484921271,3sleep12484946-21apt-get08:55:111
2478564271,3sleep12478721-21diskstats08:50:141
2477344270,1sleep00-21swapper/008:45:230
2465314270,1sleep0222-21plymouthd08:37:460
2465271270,4sleep2222-21plymouthd08:37:132
2458784270,4sleep2222-21plymouthd08:31:142
2440985271,4sleep22441821-21cut08:20:162
2439751270,3sleep2222-21plymouthd08:17:522
2433502270,1sleep10-21swapper/108:14:251
2427457270,3sleep0222-21plymouthd08:10:110
2426938270,1sleep10-21swapper/108:06:571
2414708270,3sleep2222-21plymouthd08:00:112
2407908270,3sleep2222-21plymouthd07:52:582
2407896271,3sleep0222-21plymouthd07:52:480
2395945270,4sleep22396138-21irqcore07:45:162
2382260270,1sleep00-21swapper/007:32:270
2375998270,3sleep0222-21plymouthd07:29:220
2369586270,1sleep00-21swapper/007:23:450
2357127270,3sleep2222-21plymouthd07:15:052
2348191270,1sleep20-21swapper/207:09:042
2818855260,1sleep20-21swapper/212:26:492
2818744260,1sleep12818746-21ssh12:26:321
2804098260,4sleep1222-21plymouthd12:19:341
2795556260,1sleep10-21swapper/112:12:451
2791245260,3sleep02792946-21tr12:10:200
2772902261,3sleep12772860-21sendmail-msp12:00:021
2765266260,3sleep02765300-21ssh11:55:110
2750930261,3sleep22750970-21kthreadcore11:45:202
2748388261,2sleep10-21swapper/111:42:491
2731070260,2sleep22731117-21/usr/sbin/munin11:30:202
2726308260,3sleep12727250-21irqstats11:30:151
2719676261,3sleep22721039-21kthreadcore11:25:192
2711046261,3sleep22711941-21cut11:20:172
2699783260,3sleep02699864-21python311:10:250
2691580260,3sleep0222-21plymouthd11:05:210
2621516260,4sleep20-21swapper/210:20:522
2611695260,3sleep02612665-21memory10:15:200
2608958260,4sleep22608995-21kthreadcore10:15:182
2608016261,2sleep12608748-21ssh10:15:171
2599627260,2sleep0222-21plymouthd10:10:040
2594969260,3sleep22596805-21cut10:05:202
2591889261,2sleep00-21swapper/010:05:140
2591214260,4sleep12503893-21diskmemload10:04:161
2582156260,1sleep20-21swapper/209:56:102
2568454261,2sleep20-21swapper/209:50:162
2518102260,1sleep00-21swapper/009:15:540
2504254260,2sleep02504260-21ssh09:10:140
2504204261,2sleep20-21swapper/209:10:122
2503759260,1sleep00-21swapper/009:08:330
2499609260,3sleep22501381-21cut09:05:182
2497235260,1sleep00-21swapper/009:01:280
2472181260,2sleep20-21swapper/208:45:132
2465811260,2sleep10-21swapper/108:40:111
2452390260,2sleep0222-21plymouthd08:25:510
2446020260,3sleep0222-21plymouthd08:20:460
2434434260,3sleep12435294-21cut08:15:191
2433399260,3sleep2222-21plymouthd08:13:062
2426882260,1sleep00-21swapper/008:06:120
2401990261,2sleep10-21swapper/107:50:121
2398741261,2sleep10-21swapper/107:45:191
2382740260,3sleep2222-21plymouthd07:35:102
2382287260,1sleep10-21swapper/107:32:491
2369376260,3sleep2222-21plymouthd07:21:032
2362982260,1sleep10-21swapper/107:16:321
2355167260,4sleep02356454-21grep07:15:030
2773110250,2sleep20-21swapper/212:00:062
2739634250,3sleep12739640-21ssh11:35:331
2710048251,2sleep02646227-21kworker/0:1+kacpid11:20:110
2647018250,2sleep00-21swapper/010:40:100
2639166250,2sleep12639328-21ssh10:35:141
2446616250,2sleep2222-21plymouthd08:25:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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