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2026-09-23 - 19:37
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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 rackeslot1.osadl.org (updated Wed Sep 23, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2725711211759,21sleep00-21swapper/007:05:390
1361981150,65rtkit-daemon0-21swapper/107:05:591
272578229754,34sleep30-21swapper/307:06:363
272598529262,21sleep20-21swapper/207:09:132
29314402400,1sleep20-21swapper/209:37:482
27905952360,1sleep0211rcuc/007:55:010
27640082330,1chrt0-21swapper/307:34:523
30665772320,1sleep30-21swapper/310:58:283
29727362280,2sleep30-21swapper/310:00:553
2731892992420,3cyclictest1487-21JS14:15:323
2731892992218,3cyclictest1486-21JS14:15:323
2731892992015,3cyclictest1474-21gnome-shell10:48:593
2731890992011,5cyclictest191rcu_preempt10:14:471
2731892991916,2cyclictest491ktimers/309:46:583
2731892991915,3cyclictest1486-21JS14:15:323
2731892991814,3cyclictest3017726-21grep10:29:513
30239382170,2sleep30-21swapper/310:32:203
2731892991714,2cyclictest1487-21JS14:15:323
2731892991712,4cyclictest151685-21rs:main3
2731891991713,3cyclictest2735216-21kthreadcore07:14:482
2731890991714,2cyclictest783-21polkitd11:25:011
2731890991714,2cyclictest2836886-21cpuspeed_turbos08:34:431
2731890991713,3cyclictest3075931-21cpuspeed_turbos11:04:421
273189099171,11cyclictest3126393-21df11:34:431
2731892991613,2cyclictest2751438-21turbostat.cron07:25:013
2731891991612,3cyclictest3202760-21kthreadcore12:19:462
2731891991612,3cyclictest3193643-21cpuspeed_turbos12:14:432
2731891991612,3cyclictest3053013-21kthreadcore10:49:502
273189099164,5cyclictest2749824-21kthreadcore07:24:481
2731890991613,2cyclictest151683-21in:imuxsock11:55:021
2731890991612,3cyclictest3215343-21needreboot12:24:491
2731890991612,3cyclictest3025471-21fschecks_time10:34:441
2731890991612,3cyclictest2979793-21phc2sys-jitter10:04:491
273189099160,15cyclictest3181679-21memory12:04:481
2731889991613,2cyclictest3140421-21systemctl11:40:010
2731889991613,2cyclictest151683-21in:imuxsock08:30:020
2731889991612,3cyclictest4120470-21munin-node07:39:460
2731889991612,3cyclictest2892090-21kthreadcore09:14:470
2731889991612,3cyclictest1485-21JS14:15:320
273189299159,5cyclictest1-21systemd11:33:313
2731892991512,2cyclictest3098429-21systemd-run11:15:023
2731892991512,2cyclictest2991990-21irqcore10:14:453
2731892991511,3cyclictest3229697-21kthreadcore12:34:463
2731892991511,3cyclictest2836886-21cpuspeed_turbos08:34:433
2731892991511,3cyclictest2822784-21unixbench_multi08:19:533
273189199151,3cyclictest2905184-21rm09:20:312
2731891991512,2cyclictest3132185-21/usr/sbin/munin11:35:022
2731891991512,2cyclictest3025858-21cut10:34:462
2731891991512,2cyclictest2921754-21systemd-run09:30:032
2731891991512,2cyclictest2898954-21cpuspeed_turbos09:19:432
2731891991511,3cyclictest3114954-21unixbench-2d11:24:532
2731891991511,3cyclictest2941603-21cut09:44:452
2731891991511,3cyclictest2739416-21cpuspeed_turbos07:19:422
273189199150,10cyclictest3232952-21wc12:35:002
273189099155,5cyclictest3170430-21cut11:59:471
2731890991512,2cyclictest2803411-21dump-pmu-power08:05:001
2731890991512,2cyclictest1490-21llvmpipe-107:36:001
2731890991511,3cyclictest3136439-21kthreadcore11:39:471
273189099151,10cyclictest3198828-21python312:14:531
2731890991510,4cyclictest1491-21llvmpipe-209:11:591
273189099150,8cyclictest0-21swapper/107:44:461
273189099150,11cyclictest3117512-21apt-get11:29:281
2731889991512,2cyclictest771-21dbus-daemon10:40:010
2731889991512,2cyclictest2997421-21systemd-run10:15:020
2731889991511,3cyclictest3084401-21cpuspeed_turbos11:09:470
2731889991511,3cyclictest2823597-21/usr/sbin/munin08:24:490
2731889991511,3cyclictest2803342-21unixbench_singl08:04:560
2731889991511,3cyclictest2746665-21kthreadcore07:24:460
2731889991511,3cyclictest1487-21JS14:15:320
273188999150,14cyclictest2904616-21apt09:20:010
2731892991411,2cyclictest2823403-21pool-spawner08:22:003
2731892991411,2cyclictest1492-21llvmpipe-307:56:003
2731892991410,3cyclictest783-21polkitd08:10:023
2731892991410,3cyclictest3118033-21fschecks_count11:29:463
2731892991410,3cyclictest2882345-21cpuspeed_turbos09:09:433
2731892991410,3cyclictest2733189-21irqcore07:14:453
273189199147,6cyclictest0-21swapper/209:49:272
2731891991412,1cyclictest391rcuc/212:09:462
2731891991411,2cyclictest3117980-21tr11:29:452
2731891991411,2cyclictest2965890-21/usr/sbin/munin09:59:512
2731891991411,2cyclictest2881430-21systemd-run09:05:022
2731891991411,2cyclictest2731887-21cyclictest08:05:012
2731891991410,3cyclictest2804375-21cpuspeed_turbos08:09:422
2731891991410,3cyclictest1490-21llvmpipe-110:22:002
2731891991410,3cyclictest1487-21JS14:15:322
2731891991410,3cyclictest1486-21JS14:15:322
2731891991410,3cyclictest1474-21gnome-shell10:52:002
273189099149,3cyclictest1486-21JS14:15:321
273189099147,6cyclictest32-21ksoftirqd/109:04:391
273189099145,5cyclictest3143987-21cat11:44:461
273189099142,8cyclictest3009116-21cut10:24:461
273189099141,9cyclictest32-21ksoftirqd/110:39:451
2731890991411,2cyclictest3022633-21systemd-run10:30:011
273189099141,12cyclictest301rcuc/109:09:471
2731890991411,2cyclictest2924626-21irqcore09:34:451
2731890991410,3cyclictest769-21avahi-daemon07:55:011
2731890991410,3cyclictest3072506-21pmu-power10:59:511
273189099140,6cyclictest0-21swapper/110:07:271
273189099140,1cyclictest0-21swapper/109:56:211
273189099140,10cyclictest3232248-21ntp_states12:34:481
273189099140,10cyclictest2959566-21kthreadcore09:54:471
273188999148,5cyclictest3235777-21cut12:39:420
2731889991411,2cyclictest1491-21llvmpipe-212:33:000
2731889991411,2cyclictest1486-21JS14:15:320
2731889991410,3cyclictest3021845-21needreboot10:29:540
2731889991410,3cyclictest2869331-21cpuspeed_turbos08:59:430
2731889991410,3cyclictest2848385-21pmu-power08:39:510
2731889991410,3cyclictest2764465-21wc07:35:010
273189299139,3cyclictest2920023-21kthreadcore09:29:503
273189299139,3cyclictest1491-21llvmpipe-209:36:003
273189299138,4cyclictest2941391-21ps09:44:453
273189299133,9cyclictest157999-21systemd-journal09:04:563
2731892991310,2cyclictest0-21swapper/311:19:383
273189199139,3cyclictest2746671-21kthreadcore07:24:462
273189199139,3cyclictest1-21systemd08:34:522
273189199137,5cyclictest157999-21systemd-journal07:47:012
2731891991311,1cyclictest2787465-21kthreadcore07:54:472
2731891991310,2cyclictest3084894-21irqcore11:09:502
2731891991310,2cyclictest2963861-21systemd-run09:55:022
2731891991310,2cyclictest2843549-21fschecks_time08:39:432
2731891991310,2cyclictest2813820-21kthreadcore08:14:482
2731891991310,2cyclictest2797131-21munin-plugin-st08:00:032
2731891991310,2cyclictest2774895-21kthreadcore07:44:482
273189099139,3cyclictest3059314-21irqcore10:54:461
273189099139,3cyclictest1487-21JS14:15:321
273189099137,2cyclictest0-21swapper/110:49:281
273189099135,7cyclictest2868044-21cat08:54:551
273189099131,6cyclictest0-21swapper/112:37:301
2731890991310,2cyclictest790-21systemd-logind09:45:021
2731890991310,2cyclictest790-21systemd-logind08:45:031
2731890991310,2cyclictest790-21systemd-logind08:30:001
2731890991310,2cyclictest769-21avahi-daemon08:20:031
2731890991310,2cyclictest2737959-21systemctl07:14:521
2731890991310,2cyclictest0-21swapper/111:20:021
273189099130,9cyclictest2912222-21memory09:24:491
273189099130,5cyclictest3152662-21tr11:49:511
273188999139,3cyclictest3160227-21fschecks_time11:54:430
273188999139,3cyclictest2842267-21unixbench_multi08:34:540
273188999139,3cyclictest2778450-21cpuspeed_turbos07:49:420
273188999136,6cyclictest3129113-21cut11:34:480
273188999136,2cyclictest2738385-21turbostat07:15:010
2731889991310,2cyclictest3061413-21kthreadcore10:54:480
2731889991310,2cyclictest3016645-21kworker/u8:1-writeback11:50:010
2731889991310,2cyclictest2983511-21sort10:09:480
2731889991310,2cyclictest2881228-21unixbench_multi09:04:540
2731889991310,2cyclictest2731887-21cyclictest12:29:520
2731889991310,2cyclictest2731887-21cyclictest10:59:470
2731889991310,2cyclictest0-21swapper/008:55:010
136198130,2rtkit-daemon3066204-21ssh10:57:332
273189299129,2cyclictest3169022-21tr11:59:463
273189299129,2cyclictest3003926-21kthreadcore10:19:503
273189299129,2cyclictest2798084-21fschecks_time08:04:463
273189299129,2cyclictest1486-21JS14:15:323
273189299129,2cyclictest1010-21gmain08:45:003
273189299129,2cyclictest0-21swapper/311:40:013
273189299128,3cyclictest3033704-21cpuspeed_turbos10:39:413
273189299128,3cyclictest2966346-21cpuspeed_turbos09:59:443
273189299128,3cyclictest1489-21llvmpipe-009:12:003
273189299127,4cyclictest771-21dbus-daemon08:55:033
273189299127,4cyclictest1474-21gnome-shell11:01:003
273189299127,4cyclictest1474-21gnome-shell10:41:003
273189299126,5cyclictest2983167-21tr10:09:453
273189199129,2cyclictest790-21systemd-logind09:10:022
273189199129,2cyclictest1492-21llvmpipe-308:47:002
273189199129,2cyclictest1010-21gmain11:15:032
273189199128,3cyclictest3036127-21kthreadcore10:39:462
273189199126,5cyclictest3180990-21tr12:04:472
273189199126,5cyclictest3047776-21awk10:44:542
273189199125,5cyclictest3214264-21tr12:24:482
2731891991210,1cyclictest63-21kcompactd011:50:032
273189099129,2cyclictest3613840-21kworker/u8:2-ext4-rsv-conversion07:30:031
273189099129,2cyclictest2824105-21fschecks_time08:24:431
273189099129,2cyclictest202901-21gmain09:17:341
273189099129,2cyclictest0-21swapper/112:10:031
273189099128,3cyclictest2843488-21fschecks_count08:39:441
273189099126,5cyclictest3039961-21sh10:40:331
273189099125,4cyclictest0-21swapper/111:11:461
273189099124,3cyclictest0-21swapper/107:35:011
273189099123,5cyclictest3202204-21gltestperf12:19:431
2731890991210,1cyclictest2857401-21kthreadcore08:49:471
273189099120,8cyclictest0-21swapper/109:49:511
273188999129,2cyclictest3050333-21sh10:49:330
273188999129,2cyclictest2804375-21cpuspeed_turbos08:09:420
273188999128,3cyclictest3207481-21unixbench_multi12:19:530
273188999128,3cyclictest3190347-21pmu-power12:09:550
273188999128,3cyclictest3092861-21fschecks_count11:14:430
273188999128,3cyclictest2739954-21tr07:19:460
273188999127,4cyclictest1474-21gnome-shell11:41:000
273188999127,3cyclictest1474-21gnome-shell10:19:000
273188999126,5cyclictest771-21dbus-daemon09:29:540
273188999126,5cyclictest3104111-21tr11:19:470
273188999126,4cyclictest3081825-21systemctl11:05:030
273188999125,6cyclictest2937934-21cat09:39:520
273189299118,2cyclictest2731887-21cyclictest08:55:463
273189299118,2cyclictest0-21swapper/311:54:433
273189299117,3cyclictest1474-21gnome-shell12:11:003
273189299117,3cyclictest1474-21gnome-shell07:49:103
273189299117,2cyclictest3210503-21grep12:24:433
273189299116,4cyclictest2904903-21sh09:20:033
273189299115,5cyclictest3177353-21cut12:04:443
273189299115,5cyclictest3148857-21cron11:45:013
273189299115,5cyclictest3085592-21tr11:09:503
273189299115,5cyclictest2857184-21cut08:49:463
273189299115,5cyclictest2741596-21cut07:19:473
273189299115,5cyclictest157999-21systemd-journal12:40:013
273189299115,4cyclictest3006559-21sh10:21:103
273189299115,4cyclictest2830600-21fschecks_time08:29:453
273189299111,9cyclictest1474-21gnome-shell09:21:593
273189299110,5cyclictest1133-21runrttasks08:12:203
273189199118,2cyclictest3107132-21kworker/u8:0+xprtiod11:56:262
273189199118,2cyclictest1492-21llvmpipe-312:38:002
273189199116,4cyclictest3076335-21sed11:04:452
273189199116,4cyclictest3005683-21sshd-session10:20:002
273189199116,4cyclictest2986280-21tr10:09:502
273189199116,1cyclictest191rcu_preempt10:01:252
273189199115,5cyclictest3018894-21tr10:29:512
273189199115,5cyclictest2992706-21cut10:14:462
273189199115,5cyclictest2893677-21tr09:14:472
273189199115,5cyclictest2755060-21tr07:29:482
273189199114,5cyclictest3132957-21rm11:36:312
273189199114,2cyclictest191rcu_preempt08:59:542
273189199114,2cyclictest191rcu_preempt08:19:502
273189199113,3cyclictest29269602cut09:34:472
273189199112,2cyclictest27640142sendmail_mailqu07:34:522
273189099119,1cyclictest0-21swapper/109:39:241
273189099118,2cyclictest80750irq/123-eno110:16:051
273189099118,2cyclictest2792171-21sort07:59:441
273189099118,2cyclictest0-21swapper/109:30:021
273189099115,5cyclictest2871185-21tr08:59:471
273189099115,5cyclictest2808471-21tr08:09:481
273189099115,5cyclictest2778133-21/usr/sbin/munin07:49:521
273189099115,4cyclictest3081949-21sh11:05:061
273189099115,4cyclictest2744195-21cat07:19:481
273188999118,2cyclictest2777576-21systemd-run07:45:020
273188999118,2cyclictest151685-21rs:main0
273188999118,2cyclictest1268-21cron12:25:020
273188999118,2cyclictest0-21swapper/011:30:010
273188999118,2cyclictest0-21swapper/010:45:030
273188999118,2cyclictest0-21swapper/010:34:440
273188999117,3cyclictest2881654-21kworker/u8:3-nfsiod09:49:510
273188999117,3cyclictest2796807-21unixbench_multi07:59:520
273188999116,4cyclictest3197956-21kthreadcore12:14:480
273188999116,4cyclictest2959438-21cut09:54:470
273188999115,5cyclictest2926748-21grep09:34:470
273188999115,5cyclictest2910920-21cut09:24:480
273188999115,5cyclictest157999-21systemd-journal09:07:010
273188999115,5cyclictest1-21systemd10:05:000
273189299107,2cyclictest0-21swapper/307:29:473
273189299106,2cyclictest151683-21in:imuxsock07:35:593
273189299105,4cyclictest2923846-21apt09:34:243
273189299104,5cyclictest3200248-21sh12:16:333
273189299104,5cyclictest2775493-21cut07:44:483
273189299103,5cyclictest3790804-21cupsd11:46:053
273189299100,3cyclictest0-21swapper/308:36:053
273189199108,1cyclictest3142739-21acpi11:44:242
273189199105,5cyclictest2831170-21kthreadcore08:29:472
273189199104,5cyclictest3159201-21rm11:53:382
273189199104,5cyclictest3099315-21sh11:16:252
273189199104,5cyclictest2824131-21fw_packets08:24:442
273189199100,5cyclictest0-21swapper/208:44:242
273189199100,4cyclictest2862771-21cpuspeed08:54:442
273188999105,4cyclictest2849597-21apt-get08:44:240
273188999104,5cyclictest3177036-21tune2fs12:04:420
273188999104,5cyclictest2859394-21tr08:49:480
273188999104,5cyclictest2752309-21tail07:29:400
273188999104,5cyclictest157999-21systemd-journal08:19:000
27318899994,4cyclictest2939505-21rm09:42:040
27318899994,4cyclictest1474-21gnome-shell08:12:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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