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2025-12-08 - 00:39
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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 all highest latencies:
System rackeslot2.osadl.org (updated Sun Dec 07, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289185021000,2sleep20-21swapper/210:35:102
26663022800,1sleep00-21swapper/008:05:120
31049352610,2sleep30-21swapper/312:35:153
27795762290,2sleep30-21swapper/309:30:153
26938972260,4sleep0241rcuc/008:28:560
2593755992320,1cyclictest0-21swapper/210:22:162
259375399221,6cyclictest2626940-21apt-get07:35:050
2593753992117,3cyclictest0-21swapper/011:15:000
2593753992115,2cyclictest170550irq/121-eno109:55:210
2593753992113,7cyclictest0-21swapper/010:55:010
2593753992110,6cyclictest0-21swapper/010:05:150
302487291200,2phc2sys0-21swapper/309:58:023
2593754992017,2cyclictest2978014-21awk11:25:001
2593754992017,2cyclictest2943026-21systemd-run11:05:011
2593754992017,2cyclictest2847581-21/usr/sbin/munin10:10:131
2593753992017,2cyclictest3030259-21apt-key11:55:000
2593753992011,5cyclictest1652-1atopacctd11:29:550
2593753992010,8cyclictest0-21swapper/012:35:110
302487291191,2phc2sys0-21swapper/308:10:013
2593755991916,1cyclictest0-21swapper/210:35:002
259375399197,5cyclictest3075253-21irqrtprio12:20:100
2593753991916,2cyclictest2876418-21kthreadcore10:25:190
2593753991915,3cyclictest3091671-21tr12:30:060
2593753991913,2cyclictest170550irq/121-eno107:25:110
2593753991912,6cyclictest2838545-21apt-key10:05:010
2593753991911,7cyclictest0-21swapper/009:30:010
302487291180,2phc2sys0-21swapper/312:21:253
302487291180,2phc2sys0-21swapper/311:49:193
302487291180,2phc2sys0-21swapper/310:50:243
2593755991816,1cyclictest0-21swapper/209:00:012
2593754991816,1cyclictest3108806-21latency_hist12:40:021
2593754991815,2cyclictest3056562-21systemd-run12:10:011
2593754991815,2cyclictest2925492-21latency_hist10:55:011
2593754991815,2cyclictest1652-1atopacctd11:15:011
2593754991815,2cyclictest1-21systemd10:45:021
2593754991815,2cyclictest0-21swapper/109:40:001
2593754991814,3cyclictest3015726-21kthreadcore11:45:121
2593754991813,3cyclictest3039020-21munin-plugin-st12:00:001
2593754991810,1cyclictest170550irq/121-eno109:31:391
259375399188,9cyclictest0-21swapper/011:15:060
259375399185,7cyclictest2025-21snmpd09:46:100
259375399183,9cyclictest3066088-21tune2fs12:15:100
2593753991815,2cyclictest2899411-21/usr/sbin/munin10:40:000
2593753991814,3cyclictest1702-21in:imuxsock08:25:010
2593753991812,5cyclictest3039346-21/usr/sbin/munin12:00:200
302487291171,2phc2sys0-21swapper/309:54:333
302487291170,4phc2sys0-21swapper/310:15:013
302487291170,3phc2sys0-21swapper/311:17:443
302487291170,2phc2sys0-21swapper/312:27:193
302487291170,2phc2sys0-21swapper/310:02:193
2593755991714,1cyclictest0-21swapper/212:40:002
2593755991714,1cyclictest0-21swapper/209:30:222
2593755991713,2cyclictest0-21swapper/210:05:012
2593755991713,2cyclictest0-21swapper/209:20:132
259375599171,10cyclictest0-21swapper/211:40:012
2593754991715,1cyclictest170550irq/121-eno111:45:011
2593754991714,2cyclictest3027263-21unixbench_multi11:50:211
2593754991714,2cyclictest2809214-21timerwakeupswit09:45:201
2593754991714,2cyclictest1652-1atopacctd09:55:141
2593754991713,3cyclictest3073969-21/usr/sbin/munin12:20:111
2593754991713,3cyclictest2948065-21kthreadcore11:05:151
2593754991713,3cyclictest2948065-21kthreadcore11:05:151
2593754991713,3cyclictest2817662-21sendmail_mailqu09:50:171
2593754991713,2cyclictest2599887-21munin-run07:15:011
2593754991713,2cyclictest170550irq/121-eno110:45:181
259375499170,15cyclictest2803612-21wc09:45:001
259375399177,5cyclictest0-21swapper/012:05:160
259375399177,4cyclictest2676068-21sshd08:15:060
259375399177,4cyclictest0-21swapper/012:10:130
259375399176,6cyclictest0-21swapper/009:20:000
2593753991714,2cyclictest3012804-21latency_hist11:45:020
2593753991713,3cyclictest2879297-21kworker/u16:1+nfsiod11:08:370
2593753991713,3cyclictest2879297-21kworker/u16:1+nfsiod11:08:370
2593753991713,3cyclictest2879297-21kworker/u16:1+nfsiod10:32:230
2593753991713,1cyclictest170550irq/121-eno109:31:390
2593753991711,5cyclictest2742883-21diskmemload10:13:200
835298160,1rtkit-daemon0-21swapper/111:32:141
302487291160,2phc2sys0-21swapper/310:40:173
302487291160,2phc2sys0-21swapper/309:48:553
302487291160,2phc2sys0-21swapper/309:26:193
2593755991613,1cyclictest0-21swapper/212:05:012
2593755991613,1cyclictest0-21swapper/211:22:462
2593755991613,1cyclictest0-21swapper/211:13:442
2593755991613,1cyclictest0-21swapper/207:35:092
2593755991612,2cyclictest0-21swapper/207:50:022
2593754991614,1cyclictest2718585-21latency_hist08:50:011
2593754991613,2cyclictest3057029-21tr12:10:051
2593754991613,2cyclictest2926581-21head10:55:111
2593754991613,2cyclictest2858484-21kthreadcore10:15:111
2593754991613,2cyclictest2835274-21timedrift10:00:191
2593754991613,2cyclictest2663560-21munin-plugin-st08:05:011
2593754991612,2cyclictest0-21swapper/112:30:021
259375499160,8cyclictest2616541-21tr07:25:111
259375399169,5cyclictest260-21systemd-journal07:25:000
259375399168,4cyclictest0-21swapper/009:40:020
259375399167,8cyclictest0-21swapper/009:10:050
259375399167,4cyclictest0-21swapper/011:45:070
259375399164,7cyclictest3030900-21aten2.4-expect11:55:060
259375399164,6cyclictest2973191-21cut11:20:130
259375399163,8cyclictest2761915-21kthreadcore09:20:140
259375399161,4cyclictest2820853-21munin-run09:55:000
2593753991613,2cyclictest0-21swapper/011:00:010
2593753991612,3cyclictest2738443-21kthreadcore09:05:510
2593753991611,1cyclictest17450irq/132-ahci[0000:00:17.0]10:25:000
2593753991610,5cyclictest2700622-21aten2.4-expect08:35:070
259375399160,4cyclictest0-21swapper/009:37:190
302487291151,2phc2sys0-21swapper/311:00:303
302487291150,2phc2sys0-21swapper/311:25:123
302487291150,2phc2sys0-21swapper/310:16:163
302487291150,2phc2sys0-21swapper/309:36:063
302487291150,2phc2sys0-21swapper/309:18:433
2593755991513,1cyclictest0-21swapper/207:30:012
2593755991512,1cyclictest0-21swapper/211:55:002
2593755991512,1cyclictest0-21swapper/211:00:132
2593755991512,1cyclictest0-21swapper/210:55:152
2593755991512,1cyclictest0-21swapper/209:40:002
2593755991511,2cyclictest0-21swapper/210:15:162
259375599150,6cyclictest0-21swapper/210:47:192
2593754991512,2cyclictest3004252-21sh11:40:011
2593754991512,2cyclictest2986663-21cron11:30:001
2593754991512,2cyclictest2896201-21mailstats10:35:181
2593754991512,2cyclictest2869813-21missed_timers10:20:161
2593754991512,2cyclictest2840230-21irqrtprio10:05:141
2593754991512,2cyclictest2736909-21kworker/u16:0+nfsiod09:14:031
2593754991512,2cyclictest2729567-21missed_timers08:55:131
2593754991512,2cyclictest2711769-21timerandwakeup08:40:231
2593754991512,2cyclictest2706391-21systemd-run08:40:011
2593754991512,2cyclictest2694014-21kworker/u16:2-writeback09:05:011
2593754991512,2cyclictest2657168-21apt-config08:00:011
2593754991512,2cyclictest2657168-21apt-config08:00:011
2593754991512,2cyclictest2621140-21cpuspeed_turbos07:30:131
2593754991512,2cyclictest2614309-21apt-key07:25:001
2593754991512,2cyclictest1-21systemd07:40:011
2593754991511,3cyclictest2736909-21kworker/u16:0+nfsiod09:19:331
2593754991511,3cyclictest2602476-21aten_repower_vo07:15:091
259375499150,13cyclictest3047688-21ls12:05:001
259375399158,2cyclictest171ktimers/010:16:460
259375399152,7cyclictest2934739-21aten2.4-expect11:00:060
259375399151,9cyclictest2650705-21gmain08:40:410
2593753991513,1cyclictest0-21swapper/011:33:260
2593753991512,2cyclictest2899867-21aten_repower_po10:40:060
2593753991512,2cyclictest2731595-21fschecks_time09:00:080
2593753991512,2cyclictest2717913-21wc08:45:190
2593753991512,2cyclictest2672633-21kthreadcore08:10:130
2593753991512,2cyclictest2672633-21kthreadcore08:10:130
2593753991512,2cyclictest2661089-21kthreadcore08:00:130
2593753991512,2cyclictest2600652-21kthreadcore07:15:030
2593753991512,2cyclictest0-21swapper/010:50:010
2593753991511,3cyclictest2998651-21kthreadcore11:35:200
2593753991511,3cyclictest2651684-21cpuspeed_turbos07:55:070
2593753991511,3cyclictest2651684-21cpuspeed_turbos07:55:070
259375399151,12cyclictest260-21systemd-journal07:14:550
2593753991510,3cyclictest0-21swapper/007:50:010
302487291140,3phc2sys0-21swapper/311:00:003
302487291140,2phc2sys0-21swapper/307:35:213
259375599142,4cyclictest0-21swapper/209:30:012
259375599141,5cyclictest0-21swapper/209:50:012
2593755991412,1cyclictest0-21swapper/210:30:002
2593755991412,1cyclictest0-21swapper/209:20:012
2593755991412,1cyclictest0-21swapper/209:05:522
2593755991411,1cyclictest0-21swapper/212:35:002
2593755991411,1cyclictest0-21swapper/211:40:162
2593755991411,1cyclictest0-21swapper/210:50:152
2593755991411,1cyclictest0-21swapper/210:40:202
2593755991411,1cyclictest0-21swapper/210:10:122
2593755991411,1cyclictest0-21swapper/209:40:072
2593755991411,1cyclictest0-21swapper/209:10:122
2593755991411,1cyclictest0-21swapper/208:05:122
2593755991411,1cyclictest0-21swapper/208:00:012
2593755991411,1cyclictest0-21swapper/208:00:012
2593755991411,1cyclictest0-21swapper/207:20:102
2593755991410,2cyclictest0-21swapper/210:05:132
259375499149,4cyclictest2847433-21kworker/u16:2-nfsiod10:25:221
259375499145,8cyclictest2648978-21tr07:50:171
259375499142,4cyclictest2676030-21head08:15:061
2593754991411,2cyclictest2762194-21kthreadcore09:20:141
2593754991411,2cyclictest2638835-21munin-plugin-st07:45:001
2593754991410,3cyclictest3092747-21kthreadcore12:30:151
2593754991410,3cyclictest2964721-21kthreadcore11:15:141
2593754991410,3cyclictest2886718-21kthreadcore10:30:171
2593754991410,3cyclictest2722034-21kthreadcore08:50:131
2593754991410,3cyclictest2668269-21kthreadcore08:05:131
2593754991410,3cyclictest1-21systemd07:45:061
259375399145,4cyclictest0-21swapper/007:50:100
259375399144,6cyclictest3091237-21sed12:30:020
259375399143,6cyclictest260-21systemd-journal08:50:060
2593753991411,2cyclictest2726742-21kthreadcore08:55:110
2593753991411,2cyclictest2634361-21kthreadcore07:40:120
2593753991411,2cyclictest2623691-21kthreadcore07:30:180
302487291130,3phc2sys0-21swapper/310:23:313
302487291130,3phc2sys0-21swapper/307:25:053
302487291130,2phc2sys0-21swapper/312:31:243
302487291130,2phc2sys0-21swapper/311:50:033
302487291130,2phc2sys0-21swapper/311:31:033
302487291130,2phc2sys0-21swapper/311:21:053
302487291130,2phc2sys0-21swapper/309:41:233
302487291130,2phc2sys0-21swapper/309:21:023
302487291130,2phc2sys0-21swapper/308:00:313
302487291130,2phc2sys0-21swapper/307:54:463
259375599138,2cyclictest0-21swapper/211:10:012
259375599138,2cyclictest0-21swapper/211:10:012
2593755991311,1cyclictest0-21swapper/209:56:432
2593755991311,1cyclictest0-21swapper/209:50:132
2593755991311,1cyclictest0-21swapper/208:50:022
2593755991311,1cyclictest0-21swapper/208:05:012
2593755991310,1cyclictest0-21swapper/212:25:192
2593755991310,1cyclictest0-21swapper/211:30:002
2593755991310,1cyclictest0-21swapper/211:15:182
2593755991310,1cyclictest0-21swapper/208:40:102
2593755991310,1cyclictest0-21swapper/208:35:092
2593755991310,1cyclictest0-21swapper/208:25:142
2593755991310,1cyclictest0-21swapper/208:10:182
2593755991310,1cyclictest0-21swapper/208:10:182
2593755991310,1cyclictest0-21swapper/207:10:122
259375599130,4cyclictest0-21swapper/208:30:042
259375499139,2cyclictest0-21swapper/109:25:061
2593754991310,2cyclictest3065756-21cpuspeed_turbos12:15:081
2593754991310,2cyclictest2691170-21kthreadcore08:25:171
2593754991310,2cyclictest2671072-21irqrtprio08:10:111
2593754991310,2cyclictest2671072-21irqrtprio08:10:111
259375399139,2cyclictest0-21swapper/007:10:020
2593753991310,2cyclictest2698006-21kthreadcore08:30:120
302487291126,2phc2sys0-21swapper/309:14:073
302487291120,5phc2sys0-21swapper/307:10:053
302487291120,3phc2sys0-21swapper/311:05:513
302487291120,3phc2sys0-21swapper/311:05:513
302487291120,2phc2sys0-21swapper/312:03:063
259375599129,1cyclictest0-21swapper/212:15:072
259375599129,1cyclictest0-21swapper/212:10:062
259375599129,1cyclictest0-21swapper/212:06:242
259375599129,1cyclictest0-21swapper/211:30:142
259375599129,1cyclictest0-21swapper/208:22:082
259375599123,3cyclictest0-21swapper/212:00:012
2593755991210,1cyclictest0-21swapper/212:20:052
2593755991210,1cyclictest0-21swapper/208:55:012
259375499129,2cyclictest2737192-21aten_repower_fr09:05:251
259375499125,5cyclictest2686078-21cut08:20:171
302487291114,3phc2sys0-21swapper/310:35:003
302487291111,4phc2sys0-21swapper/308:55:043
302487291111,2phc2sys0-21swapper/311:35:523
302487291111,2phc2sys0-21swapper/311:13:083
302487291110,2phc2sys0-21swapper/310:36:253
302487291110,2phc2sys0-21swapper/310:29:003
302487291110,2phc2sys0-21swapper/308:41:303
259375599119,1cyclictest0-21swapper/211:45:102
259375599119,1cyclictest0-21swapper/209:03:062
259375599119,1cyclictest0-21swapper/207:30:152
259375599118,2cyclictest0-21swapper/207:50:152
259375599118,1cyclictest0-21swapper/207:18:392
259375599117,2cyclictest0-21swapper/208:18:132
259375599110,6cyclictest0-21swapper/207:10:012
259375499118,2cyclictest2694512-21aten_repower_vo08:30:051
302487291101,2phc2sys0-21swapper/311:55:443
302487291101,2phc2sys0-21swapper/308:15:183
302487291100,4phc2sys0-21swapper/307:55:053
302487291100,4phc2sys0-21swapper/307:55:053
302487291100,3phc2sys0-21swapper/310:45:273
302487291100,3phc2sys0-21swapper/307:45:053
302487291100,2phc2sys0-21swapper/312:15:053
302487291100,2phc2sys0-21swapper/312:09:083
302487291100,2phc2sys0-21swapper/311:43:503
302487291100,2phc2sys0-21swapper/310:05:313
302487291100,2phc2sys0-21swapper/307:22:083
302487291100,2phc2sys0-21swapper/307:15:113
302487291100,2phc2sys0-21swapper/307:05:543
302487291100,1phc2sys0-21swapper/308:34:013
259375599101,5cyclictest0-21swapper/207:40:052
259375499104,5cyclictest1635-21dbus-daemon07:10:011
30248729191,3phc2sys0-21swapper/312:10:073
30248729191,2phc2sys0-21swapper/309:00:143
30248729191,2phc2sys0-21swapper/308:50:203
30248729191,2phc2sys0-21swapper/308:36:063
30248729190,3phc2sys0-21swapper/308:20:113
30248729190,2phc2sys0-21swapper/309:09:553
30248729190,2phc2sys0-21swapper/308:45:113
30248729190,2phc2sys0-21swapper/308:25:243
30248729190,2phc2sys0-21swapper/307:40:083
30248729190,2phc2sys0-21swapper/307:30:143
30248729180,2phc2sys0-21swapper/308:10:053
30248729180,2phc2sys0-21swapper/308:10:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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