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2026-07-19 - 12:26
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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 all highest latencies:
System rackeslot8.osadl.org (updated Sun Jul 19, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251830623110,1sleep02518308-21gltestperf23:40:150
2126581992926,1cyclictest0-21swapper/323:20:193
2126581992421,1cyclictest0-21swapper/320:00:013
2126581992421,1cyclictest0-21swapper/319:50:253
2126581992320,1cyclictest0-21swapper/323:40:193
2126581992320,1cyclictest0-21swapper/323:29:593
2126581992220,0cyclictest0-21swapper/319:40:153
2126581992219,1cyclictest0-21swapper/323:00:203
2126581992219,1cyclictest0-21swapper/320:00:203
2126581992219,1cyclictest0-21swapper/319:20:013
2126581992118,1cyclictest0-21swapper/323:55:163
2126581992118,1cyclictest0-21swapper/322:40:223
2126581992118,1cyclictest0-21swapper/321:40:103
212658199211,16cyclictest2557154-21chrt00:05:133
212658199211,16cyclictest2250443-21taskset20:44:263
212658199210,18cyclictest2212012-21turbostat20:19:553
212658199204,5cyclictest2415755-21turbostat22:35:003
2126581992018,1cyclictest0-21swapper/321:50:003
2126581992017,1cyclictest0-21swapper/323:35:143
2126581992017,1cyclictest0-21swapper/300:10:163
2126581992016,1cyclictest0-21swapper/319:20:183
212658199201,15cyclictest2578108-21taskset00:15:243
212658199201,14cyclictest2594665-21taskset00:26:303
212658199201,14cyclictest2556256-21taskset00:03:323
212658199201,14cyclictest2269726-21turbostat21:00:013
212658199201,13cyclictest2263389-21taskset20:55:003
21961632190,5sleep22141371-21kworker/u16:3+events_unbound20:00:192
2126581991917,1cyclictest0-21swapper/322:35:193
2126581991916,1cyclictest0-21swapper/323:00:013
2126581991916,1cyclictest0-21swapper/322:20:173
2126581991916,1cyclictest0-21swapper/319:10:143
2126581991916,1cyclictest0-21swapper/300:31:263
212658199191,14cyclictest2345492-21chrt21:50:143
212658199191,14cyclictest2328206-21taskset21:36:183
2126581991815,1cyclictest0-21swapper/323:15:223
2126581991815,1cyclictest0-21swapper/321:20:123
2126581991815,1cyclictest0-21swapper/320:20:073
2126581991815,1cyclictest0-21swapper/320:10:213
2126581991815,1cyclictest0-21swapper/320:10:203
2126581991815,1cyclictest0-21swapper/319:25:273
2126581991814,1cyclictest0-21swapper/322:00:193
212658199181,14cyclictest2538947-21taskset23:50:263
212658199181,13cyclictest2611124-21taskset00:38:493
212658199181,13cyclictest2586534-21taskset00:20:323
212658199181,13cyclictest2508195-21taskset23:30:453
212658199181,13cyclictest2406690-21taskset22:26:343
212658199181,13cyclictest2375840-21taskset22:08:143
212658199181,13cyclictest2276043-21taskset21:03:223
212658199181,13cyclictest2237281-21taskset20:30:473
212658199181,13cyclictest2160463-21taskset19:31:383
2126581991714,1cyclictest0-21swapper/323:05:263
2126581991714,1cyclictest0-21swapper/322:45:133
2126581991714,1cyclictest0-21swapper/322:10:183
2126581991714,1cyclictest0-21swapper/321:10:093
2126581991714,1cyclictest0-21swapper/319:39:533
212658199171,13cyclictest2445704-21taskset22:51:243
212658199171,13cyclictest2353618-21taskset21:55:143
212658199171,13cyclictest2321657-21taskset21:34:463
212658199171,13cyclictest2243822-21taskset20:37:293
212658199171,12cyclictest2296072-21taskset21:15:253
212658199171,12cyclictest2256631-21taskset20:45:593
212658199171,12cyclictest2179704-21taskset19:46:103
235919821610,4sleep10-21swapper/121:55:341
2126581991613,1cyclictest0-21swapper/322:15:133
212658199161,12cyclictest2531721-21taskset23:45:483
212658199161,12cyclictest2476759-21taskset23:10:403
212658199161,12cyclictest2306461-21taskset21:25:033
212658199161,12cyclictest2230877-21taskset20:25:343
212658199161,11cyclictest2204656-21chrt20:05:223
25233522150,6sleep22523475-21sensors_temp23:40:272
2126581991512,1cyclictest0-21swapper/321:05:273
23985032141,10sleep02398509-21ssh22:20:430
22986222141,10sleep00-21swapper/021:20:130
22664412141,10sleep02268331-21cut20:55:180
21262252140,2sleep30-21swapper/319:07:133
25805522132,9sleep12405748-21kworker/u16:0+ext4-rsv-conversion00:20:111
25967662121,8sleep02597682-21cut00:30:170
25877772125,1sleep2171rcu_preempt00:24:012
24935062123,6sleep12493507-21diskmemload23:23:301
24691652120,9sleep02469171-21ssh23:06:170
24350122121,8sleep02436715-21latency22:45:200
23814352120,2sleep0222-21plymouthd22:10:180
23058522120,8sleep12305858-21ssh21:24:111
25623632110,8sleep02562412-21ssh00:05:230
24959582110,7sleep12497535-21tr23:25:191
24847212111,8sleep20-21swapper/223:16:012
24004162111,7sleep22400374-21/usr/sbin/munin22:25:142
23610842116,3sleep186188-21systemd-journal22:00:061
23529542110,8sleep22352960-21ssh21:54:582
23377072111,6sleep12337731-21apt-get21:45:161
23217192110,3sleep1321rcuc/121:35:001
22122832111,2sleep20-21swapper/220:15:122
21806692110,7sleep12180798-21cut19:50:171
21739112111,8sleep20-21swapper/219:45:132
21469972111,7sleep22147031-21ntpq19:20:242
25687082101,6sleep02570033-21/usr/sbin/munin00:10:190
25514612101,6sleep22552768-21kthreadcore00:00:192
25373002100,1sleep2421rcuc/223:50:202
24997052100,2sleep2171rcu_preempt23:25:232
24462752101,6sleep02446281-21ssh22:53:020
24446952100,1sleep1321rcuc/122:50:221
24381232101,7sleep12438128-21sh22:47:011
24227952101,5sleep22422801-21ssh22:38:052
23665692100,7sleep02366617-21/usr/sbin/munin22:00:250
23556202106,2sleep20-21swapper/221:55:192
23529652101,6sleep02353110-21latency_hist21:55:000
23353642101,7sleep00-21swapper/021:40:250
22894252100,7sleep22289431-21ssh21:12:092
22829952100,7sleep12283157-21ssh21:10:161
22761702100,7sleep02276254-21appstreamcli21:05:010
22075782100,7sleep02209310-21kthreadcore20:10:210
22075782100,7sleep02209310-21kthreadcore20:10:200
21327022102,4sleep2222-21plymouthd19:12:302
21262842100,2sleep2222-21plymouthd19:07:562
2610648295,2sleep2431ktimers/200:37:292
2606041290,6sleep12607641-21kthreadcore00:35:181
2548666290,7sleep22548672-21sh23:59:242
2547426291,5sleep0222-21plymouthd23:55:530
2540731291,5sleep12540737-21ssh23:54:051
2534731291,5sleep02535665-21cut23:50:190
2517432291,4sleep2222-21plymouthd23:39:382
2477477290,6sleep22477483-21ssh23:12:412
2477187290,6sleep02477189-21ssh23:11:550
2455369290,6sleep086188-21systemd-journal23:00:160
2454466291,5sleep22454472-21ssh22:59:012
2449340290,6sleep12450998-21kthreadcore22:55:191
2437912290,2sleep20-21swapper/222:46:222
2426421290,6sleep02427861-21cut22:40:190
2422271290,2sleep10-21swapper/122:36:351
2414734290,2sleep1222-21plymouthd22:32:111
2407029290,2sleep0222-21plymouthd22:27:270
2398726292,1sleep1171rcu_preempt22:21:231
2391929294,3sleep0151ktimers/022:19:350
2368998292,4sleep12369001-21apt-get22:05:121
2282259290,2sleep0222-21plymouthd21:05:320
2263262290,2sleep0222-21plymouthd20:54:030
2258580290,6sleep12259591-21kthreadcore20:50:191
2250441290,2sleep1222-21plymouthd20:44:251
2243892290,1sleep00-21swapper/020:38:230
2237535290,3sleep2222-21plymouthd20:34:032
2218656291,5sleep12218430-21sendmail-msp20:20:111
2218368291,4sleep1222-21plymouthd20:20:001
2198932290,3sleep1222-21plymouthd20:01:191
2185315291,4sleep22185436-21ntp_kernel_err19:50:222
2166927290,2sleep1222-21plymouthd19:37:271
2160434290,2sleep10-21swapper/119:31:161
2141138290,1sleep00-21swapper/019:15:570
2121770292,4sleep02123172-21cut19:05:180
2602983281,1sleep20-21swapper/200:32:552
2595955282,3sleep1222-21plymouthd00:30:021
2588486281,3sleep20-21swapper/200:25:142
2588389282,4sleep00-21swapper/000:25:030
2579845281,1sleep2171rcu_preempt00:18:562
2571909280,5sleep12571917-21ssh00:13:291
2571022280,2sleep2222-21plymouthd00:11:062
2563198280,2sleep1222-21plymouthd00:06:081
2532704280,5sleep12532710-21ssh23:48:401
2528815280,5sleep22530630-21kthreadcore23:45:212
2484976280,6sleep12484982-21ssh23:16:481
2469797282,3sleep2222-21plymouthd23:08:032
2452591280,2sleep00-21swapper/022:55:220
2444773281,4sleep22444813-21ntpq22:50:242
2415374280,2sleep22415376-21ssh22:33:592
2399734280,2sleep2222-21plymouthd22:24:052
2384600281,3sleep1222-21plymouthd22:15:111
2374919280,1sleep20-21swapper/222:05:452
2361112282,3sleep22361149-21apt-get22:00:112
2344584282,3sleep2222-21plymouthd21:48:282
2326122281,4sleep02327083-21memory21:35:200
2321032280,2sleep2222-21plymouthd21:33:022
2312901282,3sleep2222-21plymouthd21:26:592
2297383280,2sleep0222-21plymouthd21:17:390
2290827281,4sleep22290990-21diskstats21:15:172
2289810280,1sleep00-21swapper/021:13:150
2259593280,5sleep22261404-21kthreadcore20:50:192
2250343281,3sleep20-21swapper/220:43:092
2199892283,3sleep12199981-21irqcore20:05:171
2191828281,4sleep12191866-21ntpq19:55:231
2180261280,2sleep0222-21plymouthd19:50:030
2179759280,1sleep00-21swapper/019:46:520
2159834281,4sleep02159876-21ntpq19:30:230
2148237280,4sleep1222-21plymouthd19:25:161
2147785280,2sleep00-21swapper/019:23:090
2575028271,3sleep12576749-21kthreadcore00:15:191
2557142271,3sleep22557147-21apt-get00:05:132
2549153271,3sleep10-21swapper/100:00:021
2509417270,4sleep12509419-21ssh23:34:161
2508557270,4sleep0222-21plymouthd23:31:500
2492842270,5sleep00-21swapper/023:21:400
2486440271,3sleep22486183-21sendmail-msp23:20:112
2486122270,4sleep02486218-21latency_hist23:20:010
2455617270,4sleep22360441-21kworker/u16:2+events_unbound23:00:182
2430513270,2sleep2222-21plymouthd22:42:342
2423858271,2sleep10-21swapper/122:40:121
2422458271,3sleep0222-21plymouthd22:37:060
2414290271,3sleep0222-21plymouthd22:31:010
2407299270,4sleep12360441-21kworker/u16:2+xprtiod22:28:181
2381941271,3sleep12382031-21ntpq22:10:201
2353331270,3sleep0222-21plymouthd21:55:130
2345449270,2sleep10-21swapper/121:50:121
2335232271,3sleep22335262-21ntpq21:40:242
2329822271,3sleep10-21swapper/121:40:091
2327084271,3sleep12327230-21ntpq21:35:201
2319491271,3sleep02319534-21ntpq21:30:220
2313808270,4sleep12313816-21ssh21:29:311
2305572270,5sleep22167405-21kworker/u16:4+rpciod21:23:202
2282440270,4sleep2222-21plymouthd21:07:552
2276013270,3sleep2222-21plymouthd21:03:032
2263644271,3sleep20-21swapper/220:55:132
2250779270,4sleep02250504-21apt-get20:45:040
2243926270,1sleep20-21swapper/220:38:492
2237538270,3sleep0222-21plymouthd20:34:050
2236672270,5sleep10-21swapper/120:30:221
2231081270,1sleep00-21swapper/020:28:130
2224724270,1sleep20-21swapper/220:23:172
2211657270,1sleep1222-21plymouthd20:10:541
2211657270,1sleep1222-21plymouthd20:10:531
2211648270,1sleep20-21swapper/220:10:472
2211648270,1sleep20-21swapper/220:10:462
2205422270,4sleep0222-21plymouthd20:07:470
2199021271,3sleep0222-21plymouthd20:02:270
2175931270,4sleep12177694-21cut19:45:201
2172675271,3sleep02172712-21ntpq19:40:210
2170018272,2sleep12171517-21cut19:40:181
2167446271,3sleep22167449-21apt-get19:40:112
2166948270,1sleep20-21swapper/219:37:442
2160517270,1sleep20-21swapper/219:32:222
2154283270,1sleep0222-21plymouthd19:29:360
2132715271,3sleep0222-21plymouthd19:12:390
2132556270,3sleep10-21swapper/119:10:371
2125545271,1sleep10-21swapper/119:05:221
2611519261,2sleep00-21swapper/000:39:500
2588444260,2sleep12588481-21apt-get00:25:131
2586879260,1sleep00-21swapper/000:21:350
2580198260,3sleep0222-21plymouthd00:19:580
2555688261,2sleep0222-21plymouthd00:01:570
2547644260,3sleep12547652-21ssh23:56:381
2532776260,4sleep00-21swapper/023:48:510
2523837260,1sleep10-21swapper/123:40:371
2516590260,1sleep10-21swapper/123:37:141
2516302261,2sleep0222-21plymouthd23:36:280
2504581260,4sleep22506283-21kthreadcore23:30:212
2500389260,3sleep0222-21plymouthd23:25:460
2463096260,2sleep10-21swapper/123:05:131
2460483260,3sleep12460522-21ntpq23:00:251
2385990260,3sleep22387019-21grep22:15:162
2384080260,1sleep20-21swapper/222:14:222
2374928260,3sleep0222-21plymouthd22:05:470
2342975260,3sleep02343025-21ntpq21:45:270
2328902260,3sleep2222-21plymouthd21:38:262
2296764260,3sleep12296768-21ssh21:15:561
2269614260,1sleep10-21swapper/120:58:521
2256854260,1sleep10-21swapper/120:48:431
2256625260,2sleep2222-21plymouthd20:45:552
2250147260,3sleep0222-21plymouthd20:40:400
2225165260,3sleep22225313-21df20:25:142
2225164260,2sleep1222-21plymouthd20:25:131
2223890260,3sleep02223927-21ld20:20:220
2214983260,3sleep02216840-21tr20:15:180
2192168261,2sleep20-21swapper/219:55:282
2191956260,1sleep00-21swapper/019:55:260
2166956260,1sleep00-21swapper/019:37:500
2135353261,2sleep20-21swapper/219:15:142
2135317260,3sleep12135350-21apt-get19:15:141
2470803250,2sleep12470809-21ssh23:10:031
2306497250,2sleep00-21swapper/021:25:140
2277430250,2sleep10-21swapper/121:05:171
2270020251,2sleep12270023-21apt-get21:00:131
2243670250,2sleep1222-21plymouthd20:35:321
2204610250,3sleep22204655-21ld20:05:222
2149604251,2sleep20-21swapper/219:25:202
2147695250,2sleep1222-21plymouthd19:22:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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