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2026-08-29 - 04:30
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sat Aug 29, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297595921040,1sleep00-21swapper/021:39:550
30758992810,2sleep30-21swapper/322:37:473
31135582750,2sleep13113469-21ssh22:59:531
2213291270,4phc2sys0-21swapper/320:59:313
274958399247,10cyclictest0-21swapper/022:34:300
31830622230,2sleep20-21swapper/223:39:312
2749583992316,6cyclictest1011-21gdbus00:40:010
2749584992219,2cyclictest3192669-21ssh23:44:491
2749583992213,5cyclictest3085925-21aten_repower_vo22:44:470
2749584992112,4cyclictest778-21dbus-daemon20:50:031
2749583992112,5cyclictest2741742-21kworker/u16:0-nfsiod22:56:190
2749584992017,2cyclictest0-21swapper/119:15:031
2749584992013,3cyclictest3180009-21/usr/sbin/munin23:34:571
2749583992015,4cyclictest24648-21gmain22:06:550
2749583992013,6cyclictest2749581-21cyclictest23:30:010
30757802190,2sleep00-21swapper/022:37:310
2749585991916,1cyclictest0-21swapper/222:49:542
274958599191,10cyclictest0-21swapper/222:59:322
274958399199,4cyclictest932-1atopacctd23:10:230
274958399197,7cyclictest0-21swapper/000:29:310
274958399193,8cyclictest0-21swapper/023:19:320
2749583991915,3cyclictest24616-21JS14:54:060
2749583991912,4cyclictest3136490-21latency_hist23:10:020
2213291190,5phc2sys0-21swapper/320:40:033
29876272180,2sleep30-21swapper/321:48:243
274958599183,10cyclictest0-21swapper/223:34:312
2749585991816,1cyclictest0-21swapper/220:34:542
2749585991815,1cyclictest0-21swapper/222:32:302
274958499189,4cyclictest2953929-21irqrtprio21:29:531
274958499189,3cyclictest3009957-21kthreadcore21:59:551
274958499180,4cyclictest3217165-21ssh23:56:331
274958499180,13cyclictest2923573-21cat21:10:001
274958399189,1cyclictest0-21swapper/023:44:300
274958399188,5cyclictest2923541-21diskmemload21:49:290
2749583991815,2cyclictest24648-21gmain21:56:510
2749583991815,2cyclictest1227-21sshd22:50:380
2213291181,2phc2sys0-21swapper/300:34:313
2213291180,2phc2sys0-21swapper/321:33:063
2749585991714,1cyclictest0-21swapper/220:54:522
274958499178,7cyclictest2815304-21tr19:54:531
2749584991714,2cyclictest2997033-21/usr/sbin/munin21:55:011
2749584991714,2cyclictest2997033-21/usr/sbin/munin21:55:011
2749584991714,2cyclictest24617-21JS14:54:061
2749584991713,3cyclictest932-1atopacctd22:33:591
2749584991713,3cyclictest3251090-21mailstats00:14:591
2749584991713,3cyclictest2878930-21kthreadcore20:40:091
274958399179,1cyclictest3041357-21ssh22:19:300
274958399178,5cyclictest2957302-21kthreadcore21:29:560
274958399173,9cyclictest3015416-21expr22:04:500
2749583991714,2cyclictest24615-21JS14:54:060
2213291171,2phc2sys0-21swapper/321:30:023
2213291170,2phc2sys0-21swapper/323:08:543
2213291170,2phc2sys0-21swapper/300:36:053
2213291170,2phc2sys0-21swapper/300:28:163
32246672160,2sleep20-21swapper/223:59:592
274958599161,8cyclictest0-21swapper/221:29:322
274958599161,10cyclictest0-21swapper/221:14:312
274958499169,3cyclictest3050930-21fschecks_time22:24:511
274958499168,4cyclictest2989805-21kthreadcore21:49:531
274958499167,4cyclictest0-21swapper/123:07:031
274958499163,8cyclictest2876359-21awk20:40:011
2749584991613,2cyclictest3216251-21munin-plugin-st23:55:021
2749584991613,2cyclictest3046358-21kthreadcore22:19:551
2749584991613,2cyclictest2940857-21processes21:19:561
2749584991613,2cyclictest2903874-21aten_repower_po20:59:411
2749584991613,2cyclictest24610-21gmain23:36:091
2749584991612,3cyclictest3282581-21ssh00:34:531
2749584991612,3cyclictest24619-21llvmpipe-120:13:591
2749584991610,4cyclictest2982315-21tr21:44:541
274958399169,6cyclictest3266074-21kthreadcore00:24:550
274958399168,4cyclictest3220543-21kthreadcore23:59:540
2749583991613,2cyclictest24472-21rtkit-daemon19:21:280
2749583991612,3cyclictest3118705-21kworker/u16:2+nfsiod23:33:040
2749583991612,3cyclictest2944225-21cpuspeed_turbos21:24:490
2213291161,3phc2sys0-21swapper/322:54:313
2213291160,6phc2sys0-21swapper/322:19:313
2749585991512,1cyclictest0-21swapper/223:29:192
2749585991512,1cyclictest0-21swapper/223:15:012
2749585991512,1cyclictest0-21swapper/223:09:502
2749585991512,1cyclictest0-21swapper/222:44:342
2749585991512,1cyclictest0-21swapper/222:17:092
2749585991512,1cyclictest0-21swapper/221:54:502
2749585991512,1cyclictest0-21swapper/221:54:502
2749585991512,1cyclictest0-21swapper/221:04:592
2749585991512,1cyclictest0-21swapper/220:20:012
2749585991512,1cyclictest0-21swapper/219:53:592
2749585991512,1cyclictest0-21swapper/200:34:552
2749585991512,1cyclictest0-21swapper/200:22:592
2749585991512,1cyclictest0-21swapper/200:20:002
2749585991512,1cyclictest0-21swapper/200:09:562
2749585991511,2cyclictest0-21swapper/221:09:092
274958499159,4cyclictest2947148-21tr21:24:551
274958499158,3cyclictest3254835-21gltestperf00:19:501
274958499155,5cyclictest2848338-21pool-120:18:221
274958499153,4cyclictest0-21swapper/120:34:441
2749584991513,1cyclictest1008-21gmain20:25:331
2749584991512,2cyclictest778-21dbus-daemon23:50:021
2749584991512,2cyclictest778-21dbus-daemon23:25:021
2749584991512,2cyclictest3097427-21kthreadcore22:49:551
2749584991512,2cyclictest3086545-21tail22:44:531
2749584991512,2cyclictest3030981-21runrttasks22:11:241
2749584991512,2cyclictest3023861-21runrttasks22:09:441
2749584991512,2cyclictest2902714-21apt-get20:55:011
2749584991512,2cyclictest2771539-21timerandwakeup19:20:001
2749584991511,3cyclictest3297807-21pmu-power00:39:581
2749584991511,3cyclictest3273194-21kthreadcore00:29:541
2749584991511,3cyclictest3240058-21kthreadcore00:09:551
2749584991511,3cyclictest3166092-21fschecks_time23:29:491
2749584991511,3cyclictest3151261-21kthreadcore23:19:551
2749584991511,3cyclictest3123473-21kthreadcore23:04:551
2749584991511,3cyclictest2858507-21kthreadcore20:24:551
2749584991511,3cyclictest2835292-21sort20:09:501
2749584991511,3cyclictest2809250-21kthreadcore19:49:541
2749584991511,3cyclictest2777605-21kthreadcore19:24:561
274958399158,4cyclictest3254002-21/usr/sbin/munin00:19:510
274958399157,7cyclictest24618-21llvmpipe-020:32:590
274958399156,5cyclictest0-21swapper/023:54:540
2749583991512,2cyclictest778-21dbus-daemon21:54:590
2749583991512,2cyclictest778-21dbus-daemon21:54:590
2749583991512,2cyclictest778-21dbus-daemon21:00:020
2749583991512,2cyclictest778-21dbus-daemon19:50:010
2749583991512,2cyclictest3161172-21kthreadcore23:24:550
2749583991512,2cyclictest2967472-21rt-features21:34:590
2749583991512,2cyclictest2882295-21mailstats20:40:140
2749583991512,2cyclictest2862822-21sh20:29:490
2749583991512,2cyclictest24619-21llvmpipe-120:11:590
2749583991512,2cyclictest24604-21gnome-shell22:22:090
2749583991511,3cyclictest3099424-21kthreadcore22:49:570
2749583991511,3cyclictest2798348-21kthreadcore19:39:550
274958399150,11cyclictest0-21swapper/022:26:030
2213291151,4phc2sys0-21swapper/322:08:353
2213291150,4phc2sys0-21swapper/321:23:553
2213291150,3phc2sys0-21swapper/319:44:313
2213291150,2phc2sys0-21swapper/323:17:103
274958599141,7cyclictest0-21swapper/221:19:292
2749585991412,1cyclictest0-21swapper/221:00:012
2749585991411,2cyclictest0-21swapper/223:04:552
2749585991411,1cyclictest0-21swapper/223:55:012
2749585991411,1cyclictest0-21swapper/223:49:562
2749585991411,1cyclictest0-21swapper/223:19:542
2749585991411,1cyclictest0-21swapper/222:54:592
2749585991411,1cyclictest0-21swapper/222:39:552
2749585991411,1cyclictest0-21swapper/222:24:432
2749585991411,1cyclictest0-21swapper/222:10:022
2749585991411,1cyclictest0-21swapper/221:44:482
2749585991411,1cyclictest0-21swapper/221:34:592
2749585991411,1cyclictest0-21swapper/220:49:542
2749585991411,1cyclictest0-21swapper/220:44:532
2749585991411,1cyclictest0-21swapper/220:15:022
2749585991411,1cyclictest0-21swapper/219:57:592
2749585991411,1cyclictest0-21swapper/219:49:092
2749585991411,1cyclictest0-21swapper/219:39:532
2749585991411,1cyclictest0-21swapper/219:32:592
2749585991411,1cyclictest0-21swapper/219:24:552
2749585991411,1cyclictest0-21swapper/219:14:312
2749585991411,1cyclictest0-21swapper/200:39:562
2749585991411,1cyclictest0-21swapper/200:30:022
2749585991410,2cyclictest30570332sleep222:25:162
2749585991410,2cyclictest0-21swapper/223:25:022
274958599140,9cyclictest0-21swapper/221:24:322
274958499145,2cyclictest3262887-21apt-get00:24:311
2749584991411,2cyclictest3142891-21kthreadcore23:14:551
2749584991411,2cyclictest2916900-21systemd-run21:05:011
2749584991411,2cyclictest24472-21rtkit-daemon19:26:561
2749584991410,3cyclictest3230766-21kthreadcore00:04:541
2749584991410,3cyclictest3105435-21kthreadcore22:54:541
2749584991410,3cyclictest3056690-21kworker/u16:3+nfsiod22:35:591
2749584991410,3cyclictest2973552-21kthreadcore21:39:551
2749584991410,3cyclictest2827265-21kworker/u16:1+nfsiod22:04:511
2749584991410,3cyclictest2794259-21irqcore19:39:521
2749584991410,3cyclictest2749581-21cyclictest20:04:531
274958399147,6cyclictest24618-21llvmpipe-019:43:590
274958399143,4cyclictest2756795-21fschecks_count19:14:500
2749583991412,1cyclictest3199399-21diskmemload23:46:270
2749583991411,2cyclictest932-1atopacctd00:33:470
2749583991411,2cyclictest778-21dbus-daemon21:10:020
2749583991411,2cyclictest3127173-21cron23:05:010
2749583991411,2cyclictest2982493-21kthreadcore21:44:540
2749583991411,2cyclictest2935448-21cut21:19:470
2749583991411,2cyclictest2891244-21kernelversion20:49:530
2749583991411,2cyclictest2861854-21sh20:25:030
2749583991411,2cyclictest2847758-21packagekitd20:15:070
2749583991411,2cyclictest2833350-21pmu-power20:04:560
2749583991411,2cyclictest2815322-21kthreadcore19:54:530
2749583991411,2cyclictest2790491-21kthreadcore19:34:550
2749583991411,2cyclictest2782438-21kthreadcore19:29:550
2749583991411,2cyclictest2749581-21cyclictest21:14:550
2749583991411,2cyclictest24616-21JS14:54:060
2749583991411,2cyclictest1188-21runrttasks23:38:370
2749583991410,2cyclictest3251745-21vmstat00:15:020
274958399140,7cyclictest3235553-21seq00:07:550
274958399140,4cyclictest3227522-21runrttasks00:04:310
2213291142,2phc2sys0-21swapper/323:45:113
2213291140,3phc2sys0-21swapper/323:23:013
2213291140,2phc2sys0-21swapper/323:14:073
2213291140,2phc2sys0-21swapper/322:24:113
2213291140,2phc2sys0-21swapper/321:35:183
2213291140,2phc2sys0-21swapper/319:22:463
274958599139,2cyclictest0-21swapper/220:10:012
274958599131,8cyclictest28622392sleep220:29:312
274958599131,8cyclictest0-21swapper/222:14:312
2749585991310,1cyclictest0-21swapper/221:59:552
2749585991310,1cyclictest0-21swapper/221:49:502
2749585991310,1cyclictest0-21swapper/220:24:362
2749585991310,1cyclictest0-21swapper/220:04:512
2749585991310,1cyclictest0-21swapper/219:30:002
2749585991310,1cyclictest0-21swapper/219:19:552
274958599130,9cyclictest2968450-21chrt21:35:242
274958599130,9cyclictest0-21swapper/222:04:322
274958499139,3cyclictest2962358-21gltestperf21:34:511
274958499134,4cyclictest2741742-21kworker/u16:0+nfsiod21:12:161
2749584991310,2cyclictest2820922-21tail19:59:411
2749583991310,2cyclictest935-21wpa_supplicant19:17:380
2749583991310,2cyclictest778-21dbus-daemon19:10:020
2749583991310,2cyclictest778-21dbus-daemon19:10:020
2749583991310,2cyclictest2749581-21cyclictest20:09:540
2213291132,4phc2sys0-21swapper/321:59:313
2213291131,4phc2sys0-21swapper/320:09:313
2213291130,7phc2sys0-21swapper/321:44:313
2213291130,2phc2sys0-21swapper/323:58:263
2213291130,2phc2sys0-21swapper/323:01:023
2213291130,2phc2sys0-21swapper/322:25:213
2213291130,2phc2sys0-21swapper/322:12:343
2213291130,2phc2sys0-21swapper/322:01:143
2213291130,2phc2sys0-21swapper/321:51:383
2213291130,2phc2sys0-21swapper/321:51:383
2213291130,2phc2sys0-21swapper/319:29:493
2213291130,2phc2sys0-21swapper/300:11:583
2213291130,1phc2sys0-21swapper/322:32:003
274958599129,1cyclictest0-21swapper/220:38:422
274958599129,1cyclictest0-21swapper/200:14:592
2749585991210,1cyclictest0-21swapper/219:44:532
2749585991210,1cyclictest0-21swapper/200:02:182
274958599120,9cyclictest31912072sleep223:42:572
274958499129,2cyclictest2800903-21idleruntime19:44:511
274958499128,3cyclictest2789557-21kthreadcore19:34:541
274958499121,6cyclictest2749405-21latency_hist19:10:021
274958499121,6cyclictest2749405-21latency_hist19:10:021
274958399125,5cyclictest778-21dbus-daemon20:40:010
2749583991210,1cyclictest2822953-21kthreadcore19:59:530
2213291121,3phc2sys0-21swapper/319:39:303
2213291120,2phc2sys0-21swapper/323:52:243
2213291120,2phc2sys0-21swapper/300:21:273
2213291120,2phc2sys0-21swapper/300:04:393
2213291120,1phc2sys0-21swapper/322:44:413
32397022110,2sleep30-21swapper/300:09:553
274958599118,1cyclictest0-21swapper/219:10:022
274958599118,1cyclictest0-21swapper/219:10:022
2213291113,2phc2sys0-21swapper/323:40:463
2213291113,2phc2sys0-21swapper/321:09:533
2213291112,2phc2sys0-21swapper/321:15:023
2213291111,3phc2sys0-21swapper/323:39:303
2213291110,2phc2sys0-21swapper/320:26:333
2213291110,2phc2sys0-21swapper/319:07:303
2213291110,2phc2sys0-21swapper/319:07:303
2213291110,1phc2sys0-21swapper/319:10:413
2213291100,5phc2sys0-21swapper/320:34:313
2213291100,3phc2sys0-21swapper/322:49:563
2213291100,2phc2sys0-21swapper/323:32:323
2213291100,2phc2sys0-21swapper/320:55:023
2213291100,2phc2sys0-21swapper/320:15:063
2213291100,2phc2sys0-21swapper/319:34:563
2213291100,2phc2sys0-21swapper/300:19:103
2213291100,1phc2sys0-21swapper/319:51:253
221329191,3phc2sys0-21swapper/320:04:463
221329191,3phc2sys0-21swapper/319:20:013
221329191,2phc2sys0-21swapper/323:25:433
221329190,3phc2sys0-21swapper/321:05:033
221329190,2phc2sys0-21swapper/322:55:113
221329190,2phc2sys0-21swapper/321:15:103
221329190,2phc2sys0-21swapper/320:45:083
221329190,2phc2sys0-21swapper/320:40:153
221329190,2phc2sys0-21swapper/320:24:073
221329190,2phc2sys0-21swapper/319:59:543
221329190,2phc2sys0-21swapper/319:49:563
221329190,1phc2sys0-21swapper/320:10:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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