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2026-08-18 - 15:01
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Tue Aug 18, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288436221070,2sleep30-21swapper/300:00:203
27083462940,2sleep30-21swapper/322:05:083
28650112480,1sleep10-21swapper/123:50:121
26916882450,2sleep20-21swapper/221:52:292
2482326992822,2cyclictest2729976-21/usr/sbin/munin22:20:010
2482326992713,5cyclictest0-21swapper/022:50:020
2482326992619,2cyclictest2491982-21sh19:20:020
2482326992612,4cyclictest2656243-21cstates21:30:070
28730332250,2sleep20-21swapper/223:55:142
28730332250,2sleep20-21swapper/223:55:142
2482327992519,2cyclictest69250irq/121-eno123:05:161
2482326992314,5cyclictest759-1atopacctd00:19:530
2482328992219,1cyclictest0-21swapper/221:35:012
2482328992219,1cyclictest0-21swapper/219:20:012
248232899221,5cyclictest0-21swapper/222:20:012
2482327992219,2cyclictest759-1atopacctd21:15:011
2482327992219,2cyclictest664-21dbus-daemon21:10:021
2482327992219,2cyclictest2564661-21idleruntime-cro20:20:011
2482327992215,3cyclictest2888716-21kthreadcore00:05:161
2482326992215,6cyclictest0-21swapper/021:20:010
2482326992211,6cyclictest0-21swapper/021:43:560
1157598220,5rtkit-daemon2647668-21sh21:24:420
2482327992118,2cyclictest688-21in:imuxsock23:15:021
2482327992118,2cyclictest2601289-21systemd-run20:50:011
2482327992118,2cyclictest1-21systemd22:56:421
2482327992117,2cyclictest2577121-21aten2.4-expect20:30:021
2482327992115,2cyclictest69250irq/121-eno122:48:381
2482326992118,2cyclictest1-21systemd19:15:020
2482326992115,5cyclictest2751476-21runrttasks22:32:320
2482326992112,5cyclictest2929439-21runrttasks00:31:170
2482326992111,5cyclictest0-21swapper/000:40:020
2482326992110,6cyclictest0-21swapper/000:20:150
2482328992017,1cyclictest0-21swapper/223:35:012
2482328992017,1cyclictest0-21swapper/222:15:012
2482327992017,2cyclictest664-21dbus-daemon23:05:021
2482327992017,2cyclictest2488678-21open_files19:15:021
2482327992013,3cyclictest2651215-21kthreadcore21:25:161
248232699209,6cyclictest0-21swapper/023:15:010
2482326992017,2cyclictest2482324-21cyclictest19:34:510
2482326992017,2cyclictest0-21swapper/022:30:030
2482326992012,7cyclictest0-21swapper/022:10:010
248232699200,15cyclictest2700822-21cat22:00:100
1157598200,3rtkit-daemon676-21mta-sts-daemon23:20:411
1157598200,3rtkit-daemon1306-21mta-sts-daemon20:53:160
3240591190,1phc2sys0-21swapper/321:43:263
2482328991916,1cyclictest0-21swapper/222:05:012
2482328991916,1cyclictest0-21swapper/221:15:012
2482327991916,2cyclictest2707753-21apt-key22:05:011
2482327991916,2cyclictest2648230-21systemd21:25:011
2482327991916,2cyclictest2522169-21aten_repower_po19:45:011
248232699198,6cyclictest0-21swapper/021:50:560
248232699198,6cyclictest0-21swapper/000:10:190
2482326991916,2cyclictest2737402-21ssh22:25:010
2482326991916,2cyclictest2722631-21sh22:15:010
2482326991916,2cyclictest2700209-21systemd-run22:00:010
2482326991916,2cyclictest2516292-21aten_repower_po19:40:020
2482326991916,2cyclictest1307-21mta-sts-daemon23:01:570
2482326991913,5cyclictest714-21gdbus20:25:010
2482326991913,5cyclictest2779915-21grep22:50:170
3240591180,2phc2sys0-21swapper/321:25:213
26478662180,1sleep30-21swapper/321:25:013
2482328991816,1cyclictest0-21swapper/222:30:032
2482328991815,1cyclictest0-21swapper/223:00:092
2482328991815,1cyclictest0-21swapper/222:55:032
2482328991815,1cyclictest0-21swapper/220:35:012
2482328991815,1cyclictest0-21swapper/219:25:192
2482328991814,2cyclictest27878402sleep222:55:172
2482327991815,2cyclictest838-21gmain00:35:021
2482327991815,2cyclictest2835118-21fschecks_count23:30:101
2482327991815,2cyclictest2552731-21cut20:10:031
2482327991815,2cyclictest0-21swapper/120:00:011
2482327991815,2cyclictest0-21swapper/100:35:021
2482327991810,3cyclictest0-21swapper/122:45:011
2482327991810,3cyclictest0-21swapper/100:01:511
2482326991815,2cyclictest664-21dbus-daemon20:20:020
2482326991815,2cyclictest2864773-21cut23:50:100
2482326991815,2cyclictest2482449-21aten_repower_po19:10:020
2482326991810,4cyclictest2784062-21kthreadcore22:55:130
2482326991810,4cyclictest2647708-21/usr/sbin/munin21:25:220
2482326991810,4cyclictest2482324-21cyclictest23:05:180
1157598180,2rtkit-daemon0-21swapper/122:38:101
3240591170,2phc2sys0-21swapper/322:35:123
3240591170,2phc2sys0-21swapper/322:30:263
3240591170,2phc2sys0-21swapper/321:59:323
2482328991715,1cyclictest0-21swapper/219:50:022
2482328991714,1cyclictest0-21swapper/221:20:012
2482328991714,1cyclictest0-21swapper/200:25:162
248232799179,3cyclictest0-21swapper/100:21:531
2482327991714,2cyclictest664-21dbus-daemon21:40:021
2482327991714,2cyclictest1307-21mta-sts-daemon23:26:541
2482327991713,3cyclictest1307-21mta-sts-daemon22:21:261
248232699179,4cyclictest1309-21mta-sts-daemon20:30:170
248232699177,6cyclictest1309-21mta-sts-daemon23:32:070
248232699177,6cyclictest0-21swapper/021:39:520
248232699177,5cyclictest0-21swapper/023:55:130
248232699177,5cyclictest0-21swapper/023:55:130
2482326991714,2cyclictest2887550-21if_enp1s0.800:05:140
2482326991714,2cyclictest2683454-21grep21:45:210
2482326991714,2cyclictest2552576-21systemd-run20:10:010
2482326991714,2cyclictest1309-21mta-sts-daemon00:00:230
3240591161,3phc2sys0-21swapper/323:04:503
3240591161,2phc2sys0-21swapper/300:11:583
3240591160,2phc2sys0-21swapper/323:28:113
3240591160,2phc2sys0-21swapper/323:22:493
3240591160,1phc2sys0-21swapper/320:00:023
3240591160,1phc2sys0-21swapper/300:21:543
248232899161,5cyclictest0-21swapper/220:00:012
2482328991614,1cyclictest0-21swapper/223:40:022
2482328991614,1cyclictest0-21swapper/222:25:032
2482328991614,1cyclictest0-21swapper/221:25:012
2482328991613,1cyclictest0-21swapper/221:58:282
2482328991613,1cyclictest0-21swapper/221:25:192
2482328991613,1cyclictest0-21swapper/220:24:022
2482328991613,1cyclictest0-21swapper/200:05:012
2482328991612,2cyclictest0-21swapper/200:16:232
248232799168,3cyclictest0-21swapper/121:35:001
2482327991614,1cyclictest1034-21runrttasks21:42:291
2482327991613,2cyclictest2853135-21kthreadcore23:40:141
2482327991613,2cyclictest2752700-21systemd-run22:35:021
2482327991613,2cyclictest2502719-21needreboot19:25:171
2482327991613,2cyclictest2489262-21kthreadcore19:15:031
2482327991613,2cyclictest0-21swapper/100:26:391
2482327991612,3cyclictest2670512-21kworker/u16:3+nfsiod23:18:311
2482327991612,3cyclictest2655861-21kworker/u16:0+nfsiod21:56:011
2482327991612,3cyclictest2557149-21kthreadcore20:10:161
248232799160,4cyclictest2878684-21cut00:00:001
248232799160,4cyclictest2878684-21cut00:00:001
248232699167,4cyclictest0-21swapper/023:45:120
248232699165,6cyclictest0-21swapper/023:25:050
2482326991613,2cyclictest2848419-21runrttasks23:38:240
2482326991613,2cyclictest2759854-21sh22:40:000
3240591151,2phc2sys0-21swapper/323:58:333
3240591151,2phc2sys0-21swapper/323:58:333
3240591151,2phc2sys0-21swapper/320:21:423
3240591150,5phc2sys0-21swapper/323:48:373
3240591150,5phc2sys0-21swapper/322:50:063
3240591150,4phc2sys0-21swapper/323:16:473
3240591150,3phc2sys0-21swapper/323:52:313
3240591150,2phc2sys0-21swapper/323:41:023
3240591150,2phc2sys0-21swapper/322:24:513
3240591150,2phc2sys0-21swapper/300:15:483
2482328991513,1cyclictest0-21swapper/223:30:022
2482328991513,1cyclictest0-21swapper/221:10:012
2482328991513,1cyclictest0-21swapper/200:30:142
2482328991512,1cyclictest0-21swapper/223:47:502
2482328991512,1cyclictest0-21swapper/222:50:012
2482328991512,1cyclictest0-21swapper/222:30:202
2482328991512,1cyclictest0-21swapper/220:55:122
2482328991512,1cyclictest0-21swapper/220:55:022
2482328991512,1cyclictest0-21swapper/219:10:112
2482328991512,1cyclictest0-21swapper/200:10:132
2482328991511,2cyclictest0-21swapper/220:00:162
248232799159,2cyclictest1157598rtkit-daemon21:16:511
248232799157,3cyclictest0-21swapper/122:05:151
2482327991512,2cyclictest662-21avahi-daemon20:35:011
2482327991512,2cyclictest2901814-21cpuspeed_turbos00:15:071
2482327991512,2cyclictest2738717-21grep22:25:131
2482327991512,2cyclictest2504321-21cpuspeed_turbos19:30:081
2482327991512,2cyclictest2492995-21cut19:20:111
2482327991512,2cyclictest1309-21mta-sts-daemon23:39:571
2482327991512,2cyclictest1300-21mta-sts-daemon19:40:011
2482327991512,2cyclictest0-21swapper/122:55:011
2482326991512,2cyclictest664-21dbus-daemon21:10:000
2482326991512,2cyclictest2917108-21if_enp1s000:25:140
2482326991512,2cyclictest2626085-21cpuspeed_turbos21:10:050
2482326991512,2cyclictest2577075-21unin-run20:30:020
2482326991511,3cyclictest2856757-21systemd23:45:020
2482326991511,3cyclictest2821095-21kthreadcore23:20:130
2482326991510,4cyclictest2552252-21GUsbEventThread20:36:190
2482326991510,1cyclictest1157598rtkit-daemon23:18:220
3240591140,5phc2sys0-21swapper/319:50:093
3240591140,4phc2sys0-21swapper/323:10:293
3240591140,2phc2sys0-21swapper/322:44:503
3240591140,2phc2sys0-21swapper/321:37:213
3240591140,2phc2sys0-21swapper/300:37:423
3240591140,1phc2sys0-21swapper/322:02:293
3240591140,1phc2sys0-21swapper/321:31:333
24926802140,5sleep02492809-21sed19:20:110
2482328991412,1cyclictest0-21swapper/221:45:092
2482328991412,1cyclictest0-21swapper/220:40:132
2482328991412,1cyclictest0-21swapper/220:20:022
2482328991411,1cyclictest0-21swapper/223:50:202
2482328991411,1cyclictest0-21swapper/223:44:122
2482328991411,1cyclictest0-21swapper/223:25:012
2482328991411,1cyclictest0-21swapper/223:10:152
2482328991411,1cyclictest0-21swapper/222:10:032
2482328991411,1cyclictest0-21swapper/221:35:162
2482328991411,1cyclictest0-21swapper/219:20:122
2482328991411,1cyclictest0-21swapper/200:37:162
2482327991412,1cyclictest1307-21mta-sts-daemon22:10:181
2482327991411,2cyclictest2857303-21cstates23:45:081
2482327991411,2cyclictest2686034-21fschecks_count21:50:091
2482327991411,2cyclictest2681142-21kthreadcore21:45:151
2482327991411,2cyclictest2541992-21kthreadcore20:00:141
2482327991411,2cyclictest2528937-21fschecks_count19:50:081
2482327991411,2cyclictest0-21swapper/100:15:021
2482327991410,3cyclictest2591728-21kthreadcore20:40:141
248232699148,5cyclictest1307-21mta-sts-daemon20:55:180
2482326991411,2cyclictest2619579-21idleruntime-cro21:05:010
2482326991411,2cyclictest2589828-21cut20:40:110
2482326991411,2cyclictest2553397-21gltestperf20:10:120
2482326991411,2cyclictest2528645-21cpuspeed_turbos19:50:070
2482326991410,3cyclictest2600628-21unixbench-2d20:45:200
2482326991410,3cyclictest2516502-21cpuspeed_turbos19:40:090
3240591138,2phc2sys0-21swapper/300:27:053
3240591130,2phc2sys0-21swapper/323:34:523
3240591130,2phc2sys0-21swapper/322:26:143
3240591130,2phc2sys0-21swapper/322:16:283
248232899139,2cyclictest0-21swapper/219:54:122
2482328991311,1cyclictest0-21swapper/219:35:142
2482328991311,1cyclictest0-21swapper/219:35:012
2482328991311,1cyclictest0-21swapper/219:10:032
2482328991310,1cyclictest0-21swapper/223:16:022
2482328991310,1cyclictest0-21swapper/222:40:182
2482328991310,1cyclictest0-21swapper/222:35:132
2482328991310,1cyclictest0-21swapper/220:45:112
2482328991310,1cyclictest0-21swapper/220:25:262
2482328991310,1cyclictest0-21swapper/220:10:132
2482328991310,1cyclictest0-21swapper/200:05:482
248232799139,3cyclictest2614829-21irqrtprio21:00:141
248232799139,3cyclictest2586407-21kthreadcore20:35:141
248232799139,1cyclictest1306-21mta-sts-daemon20:55:101
2482327991310,2cyclictest759-1atopacctd19:50:001
2482327991310,2cyclictest2603176-21kthreadcore20:50:151
2482327991310,2cyclictest2565417-21sh20:20:101
2482327991310,2cyclictest1307-21mta-sts-daemon22:15:091
248232699139,3cyclictest2537532-21kthreadcore19:55:150
248232699134,4cyclictest2525261-21tr19:45:130
248232699134,4cyclictest2497652-21/usr/sbin/munin19:25:110
2482326991310,2cyclictest2761022-21irqcore22:40:130
2482326991310,2cyclictest2541607-21irqcore20:00:130
3240591121,2phc2sys0-21swapper/320:30:113
3240591120,3phc2sys0-21swapper/320:00:183
3240591120,2phc2sys0-21swapper/321:14:173
3240591120,1phc2sys0-21swapper/320:27:313
248232899127,3cyclictest0-21swapper/200:20:112
2482328991210,1cyclictest0-21swapper/223:05:112
2482328991210,1cyclictest0-21swapper/221:40:142
2482328991210,1cyclictest0-21swapper/220:35:082
2482328991210,1cyclictest0-21swapper/220:05:082
2482328991210,1cyclictest0-21swapper/219:45:012
3240591111,2phc2sys0-21swapper/321:17:253
3240591110,4phc2sys0-21swapper/322:14:513
3240591110,3phc2sys0-21swapper/321:00:173
3240591110,2phc2sys0-21swapper/322:48:023
3240591110,2phc2sys0-21swapper/321:49:513
3240591110,2phc2sys0-21swapper/320:15:173
3240591110,2phc2sys0-21swapper/319:19:513
3240591110,1phc2sys0-21swapper/319:43:593
3240591110,1phc2sys0-21swapper/319:38:223
3240591110,1phc2sys0-21swapper/319:29:443
248232899118,1cyclictest0-21swapper/221:00:152
24820022111,6sleep30-21swapper/319:09:523
3240591101,2phc2sys0-21swapper/320:35:083
3240591101,2phc2sys0-21swapper/319:20:193
3240591101,2phc2sys0-21swapper/319:15:023
3240591100,3phc2sys0-21swapper/320:54:563
3240591100,2phc2sys0-21swapper/323:35:123
3240591100,2phc2sys0-21swapper/323:05:343
3240591100,2phc2sys0-21swapper/321:53:523
3240591100,2phc2sys0-21swapper/320:40:363
3240591100,2phc2sys0-21swapper/300:31:503
3240591100,2phc2sys0-21swapper/300:09:513
1157598100,6rtkit-daemon2478394-21kthreadcore19:05:161
324059191,3phc2sys0-21swapper/320:05:103
324059191,2phc2sys0-21swapper/322:55:123
324059190,2phc2sys0-21swapper/320:55:123
324059190,2phc2sys0-21swapper/320:13:233
324059190,2phc2sys0-21swapper/319:50:003
324059190,2phc2sys0-21swapper/319:30:093
324059180,2phc2sys0-21swapper/321:05:093
324059180,2phc2sys0-21swapper/320:45:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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