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2026-09-09 - 12:02
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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 376 highest latencies:
System rackeslot8.osadl.org (updated Wed Sep 09, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272328521320,1sleep10-21swapper/122:35:201
2428424992926,1cyclictest0-21swapper/323:40:013
2428424992825,1cyclictest0-21swapper/320:00:203
2428424992724,1cyclictest0-21swapper/322:00:003
2428424992723,1cyclictest0-21swapper/321:40:263
2428424992624,1cyclictest0-21swapper/322:40:013
2428424992623,1cyclictest0-21swapper/323:20:083
2428424992623,1cyclictest0-21swapper/322:25:233
2428424992615,1cyclictest0-21swapper/300:20:263
2428424992421,1cyclictest0-21swapper/321:20:213
2428424992421,1cyclictest0-21swapper/319:20:133
2428424992421,1cyclictest0-21swapper/300:00:243
2428424992420,1cyclictest0-21swapper/323:01:133
26365382230,3sleep02631515-21sendmail-msp21:40:180
2428424992321,1cyclictest0-21swapper/323:50:173
2428424992219,1cyclictest0-21swapper/323:40:203
2428424992219,1cyclictest0-21swapper/322:20:183
2428424992218,1cyclictest0-21swapper/320:40:383
2428424992119,1cyclictest0-21swapper/322:01:263
2428424992118,1cyclictest0-21swapper/322:50:213
2428424992118,1cyclictest0-21swapper/321:35:163
2428424992118,1cyclictest0-21swapper/321:25:223
2428424992118,1cyclictest0-21swapper/320:20:523
2428424992118,1cyclictest0-21swapper/319:15:293
2428424992118,1cyclictest0-21swapper/300:30:163
2428424992114,5cyclictest2796369-21turbostat23:29:553
2428424992114,5cyclictest2796369-21turbostat23:29:553
242842499211,15cyclictest2616089-21taskset21:30:103
242842499211,13cyclictest2780572-21taskset23:14:553
2428424992017,1cyclictest0-21swapper/323:05:133
2428424992017,1cyclictest0-21swapper/321:45:163
2428424992017,1cyclictest0-21swapper/321:10:273
2428424992017,1cyclictest0-21swapper/321:00:483
2428424992017,1cyclictest0-21swapper/319:41:023
2428424992017,1cyclictest0-21swapper/300:36:213
242842499201,15cyclictest2532746-21taskset20:25:443
242842499201,15cyclictest2455599-21taskset19:25:263
242842499201,14cyclictest2735750-21taskset22:45:163
2428424991913,3cyclictest2715642-21taskset22:30:203
242842499191,15cyclictest2787929-21taskset23:18:403
242842499191,14cyclictest2891320-21taskset00:25:153
242842499191,14cyclictest2874570-21taskset00:14:333
242842499191,14cyclictest2834251-21chrt23:46:263
242842499191,14cyclictest2691244-21taskset22:15:213
242842499191,14cyclictest2684859-21taskset22:10:403
242842499191,14cyclictest2564304-21taskset20:50:243
242842499191,14cyclictest2545525-21taskset20:35:503
242842499191,14cyclictest2494320-21taskset19:58:013
242842499181,14cyclictest2434365-21taskset19:10:473
242842499181,13cyclictest2881367-21taskset00:16:373
242842499181,13cyclictest2849739-21taskset23:56:053
242842499181,13cyclictest2810526-21chrt23:31:033
242842499181,13cyclictest2755941-21taskset22:56:393
242842499181,13cyclictest2677272-21taskset22:06:153
242842499181,13cyclictest2598908-21taskset21:16:473
242842499181,13cyclictest2584338-21taskset21:09:183
242842499181,13cyclictest2571375-21taskset20:58:433
242842499181,13cyclictest2513573-21taskset20:11:363
242842499181,13cyclictest2513573-21taskset20:11:363
242842499181,13cyclictest2487795-21taskset19:51:163
242842499171,13cyclictest2859306-21taskset00:05:033
242842499171,13cyclictest2726001-21taskset22:40:113
242842499171,13cyclictest2653782-21taskset21:51:353
242842499171,13cyclictest2653782-21taskset21:51:353
242842499171,13cyclictest2533338-21taskset20:30:053
242842499171,13cyclictest2519945-21taskset20:16:253
242842499171,13cyclictest2461614-21taskset19:30:233
242842499171,12cyclictest2552597-21taskset20:45:043
242842499171,12cyclictest2475682-21taskset19:45:103
26102612160,8sleep02611865-21cut21:25:190
24337672161,5sleep02433806-21ntpq19:10:240
242842499162,11cyclictest2501301-21taskset20:05:073
242842499161,12cyclictest2468649-21taskset19:36:523
28411052141,4sleep12841152-21ntpq23:50:221
26701402140,11sleep22670146-21ssh22:03:102
26695492141,5sleep186188-21systemd-journal22:01:291
25017512141,10sleep02501891-21sed20:05:160
24279362140,2sleep30-21swapper/319:05:463
28567792131,8sleep12856815-21ntpq00:00:251
28329602130,9sleep12833157-21ssh23:45:211
28282432131,8sleep02828444-21hddtemp_smartct23:45:160
27891962131,2sleep00-21swapper/023:20:180
27569002131,9sleep12756906-21ssh22:59:221
27095052132,7sleep2222-21plymouthd22:28:322
26166192130,10sleep02617496-21cut21:30:200
24630082131,9sleep22463208-21cat19:35:162
28187822122,7sleep1222-21plymouthd23:37:111
27801732120,8sleep02780179-21ssh23:13:530
27561412120,9sleep22756147-21ssh22:57:192
26079292121,8sleep12608047-21latency_hist21:25:001
25990082120,8sleep22599014-21ssh21:17:032
24497112120,9sleep12449726-21cron19:25:011
24221782122,5sleep22422200-21apt-get19:05:132
28507362111,3sleep00-21swapper/023:58:550
28438342110,3sleep12844041-21ssh23:55:151
28038702110,8sleep00-21swapper/023:29:160
28038702110,8sleep00-21swapper/023:29:160
27417932112,5sleep12724426-21kworker/u16:4+nfsiod22:50:081
27414992110,8sleep22741694-21cat22:50:012
27320932115,4sleep10-21swapper/122:40:421
26725552111,7sleep12673937-21kthreadcore22:05:181
24829302110,2sleep10-21swapper/119:50:191
24810212110,7sleep02481227-21grep19:45:240
24805642110,8sleep22475646-21/usr/sbin/munin19:45:182
24753762110,4sleep2222-21plymouthd19:44:582
24318202110,8sleep12433531-21/usr/sbin/munin19:10:201
28962622100,2sleep22896311-21ssh00:25:232
28740612100,2sleep2222-21plymouthd00:13:042
27941162101,6sleep22794154-21ntpq23:20:242
27495922101,5sleep02749624-21apt-get22:55:120
26861542100,3sleep22686156-21ssh22:14:172
26767192102,5sleep2222-21plymouthd22:05:272
26646942100,6sleep02666011-21cut22:00:190
26627422100,3sleep22662748-21ssh21:59:452
26450892100,3sleep12645218-21sensors21:45:251
26390512100,4sleep22639058-21sh21:44:102
26222282100,7sleep22622234-21ssh21:31:192
25847082100,3sleep12584408-21apt-get21:10:051
25779652101,6sleep22577968-21cron21:05:012
25465952100,7sleep12547104-21irqrtprio20:40:181
24908282100,7sleep12492618-21cut19:55:201
24742842102,6sleep086188-21systemd-journal19:40:230
24586062100,7sleep22460368-21cut19:30:192
24509352100,7sleep12451771-21kthreadcore19:25:171
24499912101,5sleep00-21swapper/019:25:120
2889213290,6sleep02889216-21sh00:21:120
2882608290,6sleep12882713-21appstreamcli00:20:011
2862984291,6sleep02864472-21latency00:05:210
2820136291,4sleep22819845-21sendmail-msp23:40:132
2804908290,6sleep02805223-21sed23:30:160
2802013291,5sleep12802045-21ntpq23:25:241
2802013291,5sleep12802045-21ntpq23:25:231
2787421290,6sleep12787428-21ssh23:17:141
2786539291,5sleep22786771-21users23:15:272
2742682290,6sleep22743431-21kthreadcore22:50:212
2716873290,2sleep0222-21plymouthd22:32:190
2694582292,4sleep00-21swapper/022:20:120
2686330290,6sleep12686336-21ssh22:14:441
2684483290,6sleep02684750-21unixbench_singl22:10:260
2660738291,5sleep02660769-21ntpq21:55:260
2646069290,5sleep244-21ksoftirqd/221:46:542
2591452291,5sleep22591455-21sh21:12:462
2570516291,5sleep22570558-21ntpq20:55:222
2552620291,4sleep0222-21plymouthd20:45:140
2546420292,4sleep014-21ksoftirqd/020:40:170
2512909291,4sleep22512948-21ntpq20:10:242
2512909291,4sleep22512948-21ntpq20:10:242
2442944290,1sleep20-21swapper/219:16:002
2427338291,4sleep02427377-21ntpq19:05:230
2913264282,3sleep0222-21plymouthd00:37:320
2906693280,4sleep22906699-21ssh00:35:142
2904173280,5sleep12904202-21ntpq00:30:231
2890191280,2sleep2222-21plymouthd00:23:552
2881100280,5sleep0222-21plymouthd00:15:470
2827189281,5sleep0222-21plymouthd23:43:360
2819782280,5sleep22820036-21sed23:40:012
2779825280,2sleep12779831-21ssh23:12:491
2765776281,4sleep20-21swapper/223:05:172
2762840281,4sleep02762864-21ntpq23:00:260
2725996281,4sleep22725692-21sendmail-msp22:40:112
2708073281,4sleep12708224-21wc22:25:261
2700922280,5sleep12700928-21ssh22:21:371
2700865281,4sleep22700867-21ssh22:21:262
2676268281,4sleep02676358-21ntpq22:05:210
2662842281,4sleep12662877-21apt-get22:00:001
2653892280,1sleep00-21swapper/021:51:540
2653892280,1sleep00-21swapper/021:51:540
2653666280,2sleep12653672-21ssh21:51:181
2653666280,2sleep12653672-21ssh21:51:181
2632807280,5sleep12623238-21kworker/u16:2+events_unbound21:40:161
2614971280,6sleep20-21swapper/221:27:462
2606428280,1sleep00-21swapper/021:20:420
2583474281,4sleep02583514-21ntpq21:05:230
2563960281,4sleep22564102-21awk20:50:212
2551301281,4sleep22551388-21ntpq20:40:232
2540699281,4sleep22541612-21tr20:35:182
2538872280,2sleep2421rcuc/220:30:272
2534753280,5sleep12536203-21tr20:30:201
2528346280,5sleep22529552-21kthreadcore20:25:202
2519900280,5sleep0222-21plymouthd20:15:510
2500747282,3sleep2222-21plymouthd20:01:222
2422369281,4sleep12422568-21hddtemp_smartct19:05:161
2905708271,3sleep0222-21plymouthd00:33:150
2904806271,4sleep2222-21plymouthd00:30:452
2896873270,1sleep10-21swapper/100:25:341
2896151271,4sleep02896214-21ntpq00:25:210
2889928273,2sleep12889930-21ssh00:23:101
2851415270,5sleep02851190-21sendmail-msp00:00:030
2838940273,2sleep22838953-21kthreadcore23:50:192
2835906271,3sleep00-21swapper/023:50:130
2827642271,3sleep1222-21plymouthd23:44:531
2787313270,1sleep0171rcu_preempt23:16:530
2767497271,3sleep014-21ksoftirqd/023:05:190
2763457271,4sleep22763463-21ssh23:00:442
2733962271,3sleep1222-21plymouthd22:45:111
2717851271,3sleep12717853-21ssh22:35:011
2709027270,1sleep00-21swapper/022:27:100
2647556270,3sleep22647562-21ssh21:50:152
2647556270,3sleep22647562-21ssh21:50:152
2614758270,1sleep10-21swapper/121:27:131
2606413271,4sleep22600122-21sendmail-msp21:20:402
2598490270,1sleep10-21swapper/121:15:421
2584979270,5sleep02585175-21expr21:10:160
2584240270,3sleep2222-21plymouthd21:08:012
2571286270,1sleep10-21swapper/120:57:341
2565599270,5sleep02565783-21idleruntime20:55:160
2558631270,3sleep20-21swapper/220:49:212
2539765271,3sleep12539768-21apt-get20:35:131
2520546271,3sleep00-21swapper/020:20:120
2512858270,4sleep12512907-21ntpq20:10:231
2512858270,4sleep12512907-21ntpq20:10:231
2501298270,3sleep2222-21plymouthd20:05:072
2500834271,3sleep0222-21plymouthd20:02:240
2494364270,1sleep00-21swapper/019:58:350
2493617271,3sleep22493642-21ntpq19:55:252
2487155270,4sleep22487198-21ntpq19:50:242
2470667273,2sleep12472109-21kthreadcore19:40:201
2455147270,4sleep22455189-21ntpq19:25:222
2449704270,4sleep02443306-21turbostat19:24:560
2449377272,2sleep2222-21plymouthd19:20:452
2443017270,1sleep00-21swapper/019:16:540
2437158271,3sleep1222-21plymouthd19:15:151
2428605270,3sleep2222-21plymouthd19:10:142
2868649260,3sleep12869584-21ssh00:10:191
2867255261,2sleep02867247-21apt-get00:10:140
2866487260,1sleep22866495-21ssh00:08:562
2859408260,3sleep12859414-21ssh00:05:141
2858098260,1sleep20-21swapper/200:02:262
2850858260,2sleep2222-21plymouthd23:59:132
2834050260,1sleep20-21swapper/223:45:462
2810887260,2sleep1222-21plymouthd23:32:061
2802046260,1sleep20-21swapper/223:25:252
2802046260,1sleep20-21swapper/223:25:252
2796332260,3sleep12796392-21munin-run23:25:001
2765291260,2sleep10-21swapper/123:05:121
2758874261,2sleep10-21swapper/123:00:181
2741836260,3sleep02741859-21acpi22:50:150
2740253260,3sleep02740259-21ssh22:46:340
2732418260,1sleep00-21swapper/022:41:410
2725625261,3sleep0872-21in:imuxsock22:40:010
2725415260,1sleep20-21swapper/222:39:192
2716416261,3sleep20-21swapper/222:31:012
2694017260,1sleep00-21swapper/022:19:200
2692887260,1sleep20-21swapper/222:16:092
2630781260,1sleep10-21swapper/121:38:111
2630647260,4sleep00-21swapper/021:37:500
2629520260,3sleep22629754-21ssh21:35:282
2616162261,2sleep10-21swapper/121:30:171
2592592260,3sleep0222-21plymouthd21:15:130
2584139260,2sleep1222-21plymouthd21:06:441
2564835260,3sleep0222-21plymouthd20:52:040
2564649260,3sleep1222-21plymouthd20:50:281
2553508261,3sleep12554274-21cut20:45:191
2539734260,1sleep00-21swapper/020:35:120
2538647261,3sleep02538770-21mailstats20:30:270
2533065260,3sleep0222-21plymouthd20:29:510
2532739260,1sleep10-21swapper/120:25:391
2525709261,2sleep20-21swapper/220:20:222
2520512261,2sleep186188-21systemd-journal20:20:091
2514145261,2sleep20-21swapper/220:15:132
2513635260,1sleep00-21swapper/020:12:230
2513635260,1sleep00-21swapper/020:12:230
2497326261,2sleep12498315-21journal-offline20:00:211
2487930260,1sleep00-21swapper/019:52:580
2481580260,3sleep1222-21plymouthd19:48:221
2468816260,3sleep0222-21plymouthd19:39:030
2467977260,4sleep12468026-21ntpq19:35:231
2456335260,3sleep1222-21plymouthd19:30:061
2906651251,1sleep12906690-21apt-get00:35:131
2875113251,1sleep20-21swapper/200:15:132
2812285250,2sleep00-21swapper/023:35:140
2805948250,2sleep22807534-21kthreadcore23:30:192
2774994250,3sleep22776614-21kthreadcore23:10:182
2692017251,2sleep12692061-21ssh22:15:241
2645557250,2sleep0222-21plymouthd21:45:280
2571756251,2sleep10-21swapper/121:00:061
2571475250,3sleep02571536-21sendmail-msp21:00:010
2520072250,2sleep1222-21plymouthd20:18:011
2507183250,2sleep1222-21plymouthd20:06:221
2456379250,2sleep00-21swapper/019:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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