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2026-05-04 - 19:41
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Mon May 04, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284656721010,2sleep30-21swapper/307:15:273
32032442990,2sleep30-21swapper/311:28:093
31694732850,2sleep30-21swapper/311:05:323
2837003993015,10cyclictest0-21swapper/010:00:020
2837003992814,10cyclictest3159030-21cstates11:00:250
2837003992613,9cyclictest3130631-21kthreadcore10:40:300
32181342240,2sleep20-21swapper/211:36:222
2837004992421,2cyclictest2290644-1atop11:30:011
2837003992417,6cyclictest3204064-21latency_hist11:30:020
283700599236,10cyclictest0-21swapper/208:30:012
2837004992315,3cyclictest3136710-21if_eno110:45:281
283700399239,9cyclictest0-21swapper/010:50:220
283700399232,20cyclictest3051654-21apt-get09:50:240
283700399231,20cyclictest3013504-21ssh09:25:220
283700399229,8cyclictest0-21swapper/009:35:290
283700399228,9cyclictest0-21swapper/011:55:260
283700399228,9cyclictest0-21swapper/010:30:210
2837003992219,2cyclictest2889431-21gpgconf07:50:000
2837004992111,3cyclictest0-21swapper/110:40:231
283700399219,8cyclictest3291883-21kthreadcore12:25:310
283700399218,9cyclictest0-21swapper/010:20:310
283700399212,17cyclictest0-21swapper/012:30:310
2837003992118,2cyclictest3310520-21sendmail12:40:000
2837003992115,5cyclictest3193802-21kthreadcore11:20:310
2837003992114,5cyclictest0-21swapper/009:15:000
2837003992112,8cyclictest3156976-21runrttasks10:56:240
2837003992112,8cyclictest2496511-21kworker/u16:3+nfsiod09:49:550
2837003992112,5cyclictest3211806-21systemd-run11:35:000
283700399211,11cyclictest1290-21dbus-daemon12:10:010
283700399210,4cyclictest2895933-21systemd-run07:55:000
2837004992017,2cyclictest3089438-21munin-plugin-st10:15:021
2837004992015,3cyclictest0-21swapper/109:30:011
2837004992013,3cyclictest3066809-21/usr/sbin/munin10:00:311
283700399208,7cyclictest3219603-21true11:40:030
2837003992017,2cyclictest2843531-21latency_hist07:15:010
2837003992014,5cyclictest2990072-21systemd-run09:10:010
2837003992014,5cyclictest2837001-21cyclictest07:40:230
2837003992014,5cyclictest1290-21dbus-daemon10:15:350
2837003992013,6cyclictest3121529-21cut10:35:280
2837003992013,5cyclictest2877066-21systemd07:40:010
2837003992012,6cyclictest2921891-21gltestperf08:15:270
2837003992011,6cyclictest3851704-21mta-sts-daemon11:07:280
2837003992010,9cyclictest0-21swapper/010:45:560
2837004991917,1cyclictest3166283-21apt11:05:241
2837004991916,2cyclictest3059035-21systemd-run09:55:021
2837004991916,2cyclictest0-21swapper/111:00:011
2837004991915,2cyclictest3097289-21systemd10:20:031
283700399199,5cyclictest0-21swapper/009:30:300
2837003991916,2cyclictest3281738-21sed12:20:280
2837003991916,2cyclictest3280423-21grep12:20:020
2837003991916,2cyclictest2851791-21sendmail07:20:010
2837003991912,6cyclictest3851705-21mta-sts-daemon07:20:360
2837003991912,6cyclictest3851705-21mta-sts-daemon07:20:360
2837003991912,6cyclictest2870656-21kworker/u16:0+nfsiod10:28:070
2837003991912,5cyclictest3851702-21mta-sts-daemon12:11:130
2837003991911,7cyclictest70-21kcompactd012:05:010
2837003991911,7cyclictest2870656-21kworker/u16:0+nfsiod09:23:230
2837003991911,7cyclictest0-21swapper/011:45:230
283700399191,11cyclictest3067591-21head10:00:270
26490911911,3phc2sys0-21swapper/309:10:013
2649091190,2phc2sys0-21swapper/312:01:213
283700599184,9cyclictest0-21swapper/209:50:012
283700599182,11cyclictest0-21swapper/211:50:012
283700499189,4cyclictest0-21swapper/110:25:301
283700499183,6cyclictest2895106-21grep07:50:341
2837004991816,1cyclictest2876826-21cron07:40:001
2837004991815,2cyclictest3287740-21cron12:25:001
2837004991815,2cyclictest3059776-21entropy09:55:251
2837004991815,2cyclictest3032172-21kthreadcore09:35:311
2837004991815,2cyclictest1290-21dbus-daemon09:20:011
2837004991811,3cyclictest3217696-21timerwakeupswit11:35:371
2837004991811,3cyclictest2837001-21cyclictest09:10:301
283700399188,6cyclictest0-21swapper/007:55:220
283700399181,8cyclictest491rcuog/208:25:220
2837003991815,2cyclictest3041631-21find09:40:340
2837003991814,3cyclictest2933419-21cat08:25:000
2837003991812,5cyclictest2908489-21systemd-run08:05:010
2837003991811,6cyclictest3077026-21kthreadcore10:05:300
2837003991811,5cyclictest32407892sleep011:50:520
2649091180,2phc2sys0-21swapper/311:31:073
283700599177,7cyclictest31033112sleep210:20:512
2837005991714,1cyclictest0-21swapper/211:30:012
2837005991713,2cyclictest0-21swapper/209:17:502
2837005991712,2cyclictest0-21swapper/210:57:262
283700499179,3cyclictest0-21swapper/109:33:331
283700499178,4cyclictest0-21swapper/111:00:301
2837004991714,2cyclictest3304887-21kthreadcore12:35:291
2837004991714,2cyclictest3104876-21grep10:25:021
2837004991714,2cyclictest3077921-21kthreadcore10:05:311
2837004991714,2cyclictest3008571-21kthreadcore09:20:311
2837004991714,2cyclictest2988641-21kthreadcore09:05:331
2837004991714,2cyclictest2974986-21kthreadcore08:55:291
2837004991714,2cyclictest1996-21runrttasks11:51:421
2837004991710,3cyclictest17350irq/127-ahci[0000:00:17.0]11:15:001
283700399176,6cyclictest0-21swapper/010:10:250
283700399173,9cyclictest0-21swapper/009:15:390
2837003991714,2cyclictest3824567-21rs:main0
2837003991711,5cyclictest3851703-21mta-sts-daemon11:15:150
2837003991711,5cyclictest3222754-21kthreadcore11:40:290
2837003991711,5cyclictest2956905-21kthreadcore08:40:320
2837003991711,5cyclictest2915589-21gltestperf08:10:280
2837003991710,6cyclictest2968507-21kthreadcore08:50:280
2649091170,2phc2sys0-21swapper/312:17:213
2649091170,2phc2sys0-21swapper/309:25:283
283700599163,8cyclictest0-21swapper/207:30:012
283700599163,7cyclictest0-21swapper/212:10:012
283700599161,6cyclictest31810322sleep211:14:582
2837005991613,1cyclictest0-21swapper/212:33:202
2837005991612,2cyclictest0-21swapper/212:18:512
283700599160,2cyclictest29459442sleep208:35:022
283700499169,3cyclictest3039571-21kthreadcore09:40:301
283700499163,3cyclictest134050irq/121-eno112:20:011
2837004991613,2cyclictest2877904-21head07:40:261
2837004991613,2cyclictest1996-21runrttasks10:52:541
2837004991612,3cyclictest2964630-21latency_hist08:50:001
2837004991612,2cyclictest0-21swapper/108:25:021
2837004991612,2cyclictest0-21swapper/108:15:011
283700399162,6cyclictest3851703-21mta-sts-daemon08:06:470
2837003991610,5cyclictest3178156-21kthreadcore11:10:310
2837003991610,5cyclictest2978033-21cpuspeed_turbos09:00:240
283700399160,7cyclictest2971674-21aten2.4-expect08:55:230
283700399160,2cyclictest0-21swapper/008:45:240
2649091161,2phc2sys0-21swapper/309:25:013
2649091160,2phc2sys0-21swapper/310:42:003
2649091160,2phc2sys0-21swapper/309:59:243
2649091160,1phc2sys0-21swapper/311:53:203
283700599156,6cyclictest2951927-21chrt08:37:292
283700599155,7cyclictest32105352sleep211:31:262
283700599155,5cyclictest0-21swapper/209:50:242
283700599153,6cyclictest0-21swapper/211:10:012
283700599152,7cyclictest0-21swapper/210:00:232
2837005991512,1cyclictest0-21swapper/212:02:412
2837005991512,1cyclictest0-21swapper/211:40:212
2837005991512,1cyclictest0-21swapper/211:20:312
2837005991512,1cyclictest0-21swapper/210:00:022
283700499158,6cyclictest3851703-21mta-sts-daemon12:32:041
283700499156,4cyclictest0-21swapper/111:20:221
2837004991513,1cyclictest0-21swapper/108:55:001
2837004991512,2cyclictest3851705-21mta-sts-daemon12:25:181
2837004991512,2cyclictest3851704-21mta-sts-daemon08:25:291
2837004991512,2cyclictest3827634-1atopacctd09:00:301
2837004991512,2cyclictest3219805-21/usr/sbin/munin11:40:271
2837004991512,2cyclictest3182238-21grep11:15:271
2837004991512,2cyclictest2957126-21kthreadcore08:40:321
2837004991512,2cyclictest2840161-21kthreadcore07:10:311
2837004991512,2cyclictest1290-21dbus-daemon11:35:021
2837004991511,3cyclictest3058926-21kworker/u16:4+nfsiod11:47:581
2837004991511,3cyclictest2851253-21timerwakeupswit07:15:361
283700399159,5cyclictest2864652-21acpi07:30:220
283700399159,5cyclictest2862433-21kthreadcore07:25:310
2649091150,3phc2sys0-21swapper/311:40:213
2649091150,2phc2sys0-21swapper/312:14:123
2649091150,2phc2sys0-21swapper/311:35:123
2649091150,2phc2sys0-21swapper/308:48:463
2649091150,2phc2sys0-21swapper/307:59:553
383433398140,3rtkit-daemon2909725-21sed08:05:281
283700599147,4cyclictest2997184-21chrt09:14:042
283700599145,5cyclictest0-21swapper/211:15:172
283700599145,5cyclictest0-21swapper/208:20:012
283700599142,9cyclictest0-21swapper/209:00:012
2837005991411,1cyclictest0-21swapper/211:00:252
2837005991411,1cyclictest0-21swapper/210:15:352
2837005991411,1cyclictest0-21swapper/210:12:102
2837005991411,1cyclictest0-21swapper/209:40:012
2837005991411,1cyclictest0-21swapper/207:40:232
283700499146,6cyclictest2868780-21tr07:30:321
283700499146,4cyclictest2852239-21aten2.4-expect07:20:231
283700499146,4cyclictest2852239-21aten2.4-expect07:20:231
283700499141,2cyclictest0-21swapper/112:00:131
2837004991411,2cyclictest3851705-21mta-sts-daemon12:11:521
2837004991411,2cyclictest3851705-21mta-sts-daemon07:46:451
2837004991411,2cyclictest3121340-21irqcore10:35:281
2837004991411,2cyclictest2863492-21processes07:25:331
2837004991411,2cyclictest2837001-21cyclictest07:55:231
2837004991411,2cyclictest0-21swapper/111:55:301
2837004991410,3cyclictest2926230-21pmu-power08:15:331
2837004991410,3cyclictest2496511-21kworker/u16:3+nfsiod09:46:161
283700399148,5cyclictest3851705-21mta-sts-daemon08:35:250
2649091141,6phc2sys0-21swapper/310:55:223
2649091140,5phc2sys0-21swapper/311:00:393
2649091140,2phc2sys0-21swapper/312:31:053
2649091140,2phc2sys0-21swapper/310:24:173
2649091140,2phc2sys0-21swapper/308:50:463
2649091140,1phc2sys0-21swapper/312:27:023
2649091140,1phc2sys0-21swapper/312:08:243
2649091140,1phc2sys0-21swapper/310:30:143
31091032130,2sleep20-21swapper/210:25:312
30954782130,3sleep30-21swapper/310:16:113
283700599139,2cyclictest0-21swapper/211:50:302
283700599139,2cyclictest0-21swapper/207:20:362
283700599139,2cyclictest0-21swapper/207:20:362
283700599138,3cyclictest2890951-21chrt07:50:292
283700599138,2cyclictest0-21swapper/207:35:302
283700599136,4cyclictest2933330-21chrt08:24:192
283700599135,5cyclictest3142594-21chrt10:48:442
283700599135,5cyclictest30203362sleep209:29:042
283700599134,6cyclictest3043270-21chrt09:44:102
283700599132,4cyclictest0-21swapper/209:20:232
2837005991311,1cyclictest0-21swapper/212:00:012
2837005991311,1cyclictest0-21swapper/209:10:012
2837005991311,1cyclictest0-21swapper/207:55:152
2837005991310,1cyclictest0-21swapper/212:24:402
2837005991310,1cyclictest0-21swapper/210:35:282
2837005991310,1cyclictest0-21swapper/207:10:362
283700499139,3cyclictest2947078-21if_enp1s0.808:35:271
2837004991311,1cyclictest3851705-21mta-sts-daemon10:30:281
2837004991310,2cyclictest2942871-21kthreadcore08:30:301
2837004991310,2cyclictest2903115-21gltestperf08:00:261
283700499130,4cyclictest3258118-21/usr/sbin/munin12:05:231
283700399131,9cyclictest0-21swapper/007:10:000
2649091132,2phc2sys0-21swapper/310:46:493
2649091131,3phc2sys0-21swapper/308:25:223
2649091130,3phc2sys0-21swapper/309:35:233
2649091130,3phc2sys0-21swapper/309:11:313
2649091130,2phc2sys0-21swapper/312:22:423
2649091130,2phc2sys0-21swapper/310:53:513
2649091130,2phc2sys0-21swapper/309:40:243
2649091130,1phc2sys0-21swapper/311:18:373
283700599129,1cyclictest0-21swapper/209:30:222
283700599129,1cyclictest0-21swapper/207:45:062
283700599128,2cyclictest0-21swapper/210:32:302
283700599126,3cyclictest2970890-21chrt08:51:362
283700599123,6cyclictest0-21swapper/207:15:232
283700599123,5cyclictest0-21swapper/207:30:232
2837005991210,1cyclictest0-21swapper/212:35:342
2837005991210,1cyclictest0-21swapper/210:40:302
2837005991210,1cyclictest0-21swapper/210:06:052
2837005991210,1cyclictest0-21swapper/208:45:242
283700599120,6cyclictest0-21swapper/210:51:062
2649091124,2phc2sys0-21swapper/308:30:233
2649091120,2phc2sys0-21swapper/311:55:563
2649091120,1phc2sys0-21swapper/310:27:173
2649091120,1phc2sys0-21swapper/308:15:123
283700599119,1cyclictest0-21swapper/212:11:132
283700599118,1cyclictest0-21swapper/208:10:282
283700599118,1cyclictest0-21swapper/208:05:232
283700599114,5cyclictest3293098-21chrt12:25:322
283700599110,9cyclictest0-21swapper/208:00:222
283700499116,4cyclictest1-21systemd07:10:001
2649091112,2phc2sys0-21swapper/312:37:493
2649091112,2phc2sys0-21swapper/310:38:123
2649091112,2phc2sys0-21swapper/307:35:243
2649091111,5phc2sys0-21swapper/310:09:373
2649091111,2phc2sys0-21swapper/309:46:023
2649091110,5phc2sys0-21swapper/311:25:023
2649091110,3phc2sys0-21swapper/308:40:243
2649091110,2phc2sys0-21swapper/310:01:353
2649091110,2phc2sys0-21swapper/307:25:223
2649091110,1phc2sys0-21swapper/308:20:533
2649091110,1phc2sys0-21swapper/307:49:503
2649091110,1phc2sys0-21swapper/307:40:043
2649091110,1phc2sys0-21swapper/307:33:473
283700599101,4cyclictest0-21swapper/208:40:232
2649091102,2phc2sys0-21swapper/311:48:353
2649091101,3phc2sys0-21swapper/307:20:223
2649091101,3phc2sys0-21swapper/307:20:223
2649091101,2phc2sys0-21swapper/309:34:033
2649091101,2phc2sys0-21swapper/308:10:283
2649091100,5phc2sys0-21swapper/307:05:233
2649091100,2phc2sys0-21swapper/311:10:233
2649091100,2phc2sys0-21swapper/310:11:343
2649091100,2phc2sys0-21swapper/309:53:553
2649091100,2phc2sys0-21swapper/309:15:353
2649091100,2phc2sys0-21swapper/308:55:233
2649091100,2phc2sys0-21swapper/308:38:003
2649091100,2phc2sys0-21swapper/308:02:293
2649091100,2phc2sys0-21swapper/307:54:593
2649091100,2phc2sys0-21swapper/307:14:553
28370059997,1cyclictest0-21swapper/209:00:242
264909191,2phc2sys0-21swapper/309:00:243
264909191,2phc2sys0-21swapper/308:05:293
28370059980,3cyclictest0-21swapper/207:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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