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2026-03-15 - 18:16
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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 Sun Mar 15, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
295734421580,1sleep02957348-21kthreadcore12:11:400
26286222950,2sleep20-21swapper/209:05:102
29533972840,2sleep20-21swapper/212:11:342
248625299280,7cyclictest2715100-21sh09:56:340
26446032260,1sleep016-21ksoftirqd/009:16:340
2486253992517,3cyclictest2643257-21latency_hist09:15:011
2486253992416,3cyclictest2743892-21kthreadcore10:11:381
2486253992414,3cyclictest2974674-21kthreadcore12:21:401
2486252992417,6cyclictest2774199-21runrttasks10:27:590
2486252992415,5cyclictest2893082-21kthreadcore11:36:380
2486253992315,3cyclictest2709909-21kthreadcore09:51:401
2486253992312,6cyclictest0-21swapper/109:36:321
2486253992310,6cyclictest0-21swapper/111:25:011
2486253992310,6cyclictest0-21swapper/111:25:011
2486254992219,1cyclictest0-21swapper/209:51:442
2486253992220,1cyclictest2986843-21latency_hist12:30:031
2486253992212,3cyclictest2815589-21kthreadcore10:51:401
2486253992211,6cyclictest0-21swapper/110:50:001
2486253992210,3cyclictest2891759-21cstates11:36:341
2486252992212,5cyclictest0-21swapper/010:15:010
2486252992212,2cyclictest29026-21sendmail-mta09:49:430
2486254992119,1cyclictest0-21swapper/212:40:022
248625399219,3cyclictest0-21swapper/110:10:001
2486253992118,2cyclictest2835263-21unixbench_singl11:01:451
2486253992116,4cyclictest2969418-21systemd-run12:20:011
2486253992115,2cyclictest134050irq/121-eno110:21:331
2486253992113,3cyclictest0-21swapper/110:00:001
2486253992112,3cyclictest2757818-21/usr/sbin/munin10:20:001
2486253992111,3cyclictest1996-21runrttasks11:31:401
2486253992111,2cyclictest0-21swapper/111:11:461
2486252992119,1cyclictest2819746-21cron10:55:000
2486252992114,6cyclictest0-21swapper/008:00:000
2486252992111,5cyclictest0-21swapper/011:10:010
29830292200,2sleep30-21swapper/312:26:423
2649091200,2phc2sys0-21swapper/309:11:013
2486254992017,1cyclictest0-21swapper/210:41:142
2486254992017,1cyclictest0-21swapper/210:25:002
2486253992017,2cyclictest2826451-21unixbench_singl10:56:471
2486253992017,2cyclictest2492687-21systemctl07:15:011
2486253992016,3cyclictest0-21swapper/112:05:001
2486253992011,3cyclictest2991377-21kthreadcore12:31:411
2486253992010,4cyclictest0-21swapper/111:56:441
248625299209,6cyclictest0-21swapper/009:26:330
248625299206,10cyclictest2684165-21kthreadcore09:36:390
248625299204,7cyclictest2832426-21kthreadcore11:01:380
2486252992017,2cyclictest2987235-21gdbus12:30:010
2486252992017,2cyclictest2857398-21cut11:16:380
2486252992017,2cyclictest2740304-21systemd-run10:10:000
2649091191,2phc2sys0-21swapper/310:58:313
2649091190,2phc2sys0-21swapper/309:57:103
2486254991917,1cyclictest0-21swapper/210:50:012
2486254991916,1cyclictest0-21swapper/211:10:022
2486254991915,2cyclictest0-21swapper/211:32:492
248625399199,4cyclictest0-21swapper/111:46:381
2486253991916,2cyclictest2960473-21dump-pmu-power12:15:001
2486253991916,2cyclictest2856542-21cpuspeed_turbos11:16:341
2486253991916,2cyclictest2678393-21/usr/sbin/munin09:35:011
2486253991916,2cyclictest2666920-21pmu-power09:26:431
2486253991916,2cyclictest2645474-21irqrtprio09:16:381
2486253991916,2cyclictest2579121-21switchtime08:21:441
2486253991916,2cyclictest2549231-21grep08:00:001
2486253991916,2cyclictest2526577-21grep07:41:371
2486253991915,3cyclictest2523633-21kthreadcore07:36:401
2486253991915,2cyclictest2622498-21latency_hist09:00:011
2486253991910,4cyclictest0-21swapper/110:01:321
248625299199,5cyclictest0-21swapper/010:45:010
248625299198,6cyclictest0-21swapper/010:36:380
248625299198,6cyclictest0-21swapper/010:36:380
248625299195,2cyclictest0-21swapper/011:25:000
248625299195,2cyclictest0-21swapper/011:25:000
248625299192,4cyclictest0-21swapper/012:01:310
2486252991916,2cyclictest2918897-21irqrtprio11:51:370
2486252991916,2cyclictest2724129-21tr10:01:340
2486252991916,2cyclictest2692898-21kthreadcore09:41:400
2486252991916,2cyclictest2658224-21processes09:21:420
2486252991916,2cyclictest2492254-21sh07:15:020
2486252991916,2cyclictest1290-21dbus-daemon10:50:000
2486252991916,2cyclictest1290-21dbus-daemon08:40:000
2486252991911,4cyclictest0-21swapper/011:35:000
2486252991910,5cyclictest0-21swapper/011:56:400
2649091180,2phc2sys0-21swapper/311:59:503
2486254991815,1cyclictest0-21swapper/212:00:012
2486254991815,1cyclictest0-21swapper/211:30:012
2486254991815,1cyclictest0-21swapper/210:16:412
2486254991815,1cyclictest0-21swapper/209:45:012
2486254991815,1cyclictest0-21swapper/209:18:162
2486254991815,1cyclictest0-21swapper/208:20:002
2486254991814,2cyclictest0-21swapper/211:42:412
2486254991814,2cyclictest0-21swapper/209:40:012
2486253991815,2cyclictest2917713-21acpi11:51:311
2486253991815,2cyclictest2846091-21idleruntime-cro11:10:001
2486253991815,2cyclictest2795681-21kthreadcore10:41:391
2486253991815,2cyclictest2790001-21kthreadcore10:36:411
2486253991815,2cyclictest2790001-21kthreadcore10:36:411
2486253991815,2cyclictest2656844-21kthreadcore09:21:391
2486253991815,2cyclictest2599283-21gltestperf08:41:361
2486253991815,2cyclictest2568068-21aten_repower_cu08:16:341
2486253991815,2cyclictest2556006-21aten_repower_cu08:06:331
2486253991815,2cyclictest1296-21polkitd09:10:021
248625299189,5cyclictest0-21swapper/012:40:010
248625299188,5cyclictest0-21swapper/011:00:010
248625299188,4cyclictest2944328-21cpu12:06:330
248625299188,4cyclictest2944328-21cpu12:06:330
248625299186,10cyclictest2975464-21pluginstate12:21:420
2486252991815,2cyclictest2991968-21kthreadcore12:31:420
2486252991815,2cyclictest2849494-21kthreadcore11:11:400
2486252991815,2cyclictest2759728-21fschecks_count10:21:360
2486252991815,2cyclictest2628460-21cut09:05:020
2486252991815,2cyclictest2573891-21cut08:20:020
2486252991815,2cyclictest2531071-21idleruntime-cro07:45:000
248625499176,6cyclictest0-21swapper/212:20:022
2486254991714,1cyclictest0-21swapper/211:36:322
2486254991714,1cyclictest0-21swapper/210:26:402
2486254991714,1cyclictest0-21swapper/210:01:322
2486254991714,1cyclictest0-21swapper/208:51:392
2486254991714,1cyclictest0-21swapper/208:25:012
2486254991714,1cyclictest0-21swapper/208:05:002
2486254991712,2cyclictest0-21swapper/209:56:342
248625399172,5cyclictest2501372-21aten2.4-expect07:21:321
2486253991714,2cyclictest2901229-21irqcore11:41:381
2486253991714,2cyclictest2777460-21gltestperf10:31:361
2486253991714,2cyclictest2767950-21aten_repower_cu10:26:331
2486253991714,2cyclictest2580417-21cpuspeed_turbos08:26:341
2486253991714,2cyclictest2542334-21phc2sys07:51:421
2486253991713,3cyclictest1329-21rs:main1
248625299179,7cyclictest2486250-21cyclictest09:51:370
248625299175,4cyclictest0-21swapper/008:41:320
2486252991714,2cyclictest2678384-21latency_hist09:35:010
2486252991714,2cyclictest1326-21systemd-logind07:20:010
248625299170,8cyclictest2902901-21cut11:41:400
248625299170,3cyclictest2636852-21sed09:11:380
28587852160,2sleep20-21swapper/211:16:392
2649091162,2phc2sys0-21swapper/311:51:453
2649091161,3phc2sys0-21swapper/308:41:323
2649091161,2phc2sys0-21swapper/309:15:223
2649091160,2phc2sys0-21swapper/311:01:393
2649091160,2phc2sys0-21swapper/310:13:323
2649091160,1phc2sys0-21swapper/310:24:583
2486254991613,1cyclictest0-21swapper/211:50:492
2486254991613,1cyclictest0-21swapper/211:46:422
2486254991613,1cyclictest0-21swapper/211:00:012
2486254991613,1cyclictest0-21swapper/210:40:002
2486254991613,1cyclictest0-21swapper/210:40:002
2486254991613,1cyclictest0-21swapper/209:05:022
2486254991613,1cyclictest0-21swapper/207:26:322
2486254991613,1cyclictest0-21swapper/207:20:002
2486254991611,2cyclictest0-21swapper/210:06:432
248625399168,3cyclictest0-21swapper/112:10:011
248625399168,3cyclictest0-21swapper/112:10:011
2486253991614,1cyclictest2688460-21aten2.4-expect09:41:331
2486253991613,2cyclictest2705016-21latency_hist09:50:011
2486253991613,2cyclictest2628562-21latency_hist09:05:021
2486253991613,2cyclictest2507867-21sh07:26:341
248625299168,2cyclictest0-21swapper/011:49:430
248625299168,2cyclictest0-21swapper/010:30:200
248625299168,2cyclictest0-21swapper/010:18:560
248625299168,1cyclictest0-21swapper/012:16:350
248625299163,4cyclictest2513314-21/usr/sbin/munin07:31:340
248625299160,15cyclictest2525057-21perf07:40:010
2649191150,1ptp4l0-21swapper/308:40:023
2649091155,2phc2sys0-21swapper/311:30:133
2649091150,3phc2sys0-21swapper/311:41:593
2649091150,2phc2sys0-21swapper/311:49:343
2649091150,2phc2sys0-21swapper/308:21:403
2486254991513,1cyclictest0-21swapper/212:30:012
2486254991513,1cyclictest0-21swapper/210:55:012
2486254991512,2cyclictest0-21swapper/208:35:012
2486254991512,2cyclictest0-21swapper/208:35:012
2486254991512,1cyclictest0-21swapper/212:09:432
2486254991512,1cyclictest0-21swapper/212:09:432
2486254991512,1cyclictest0-21swapper/211:15:012
2486254991512,1cyclictest0-21swapper/211:01:382
2486254991512,1cyclictest0-21swapper/210:35:012
2486254991512,1cyclictest0-21swapper/209:35:002
2486254991512,1cyclictest0-21swapper/209:25:202
2486254991512,1cyclictest0-21swapper/208:15:012
2486254991512,1cyclictest0-21swapper/207:39:132
2486254991512,1cyclictest0-21swapper/207:10:432
2486254991511,2cyclictest0-21swapper/207:46:402
2486254991510,3cyclictest0-21swapper/207:31:332
248625399155,2cyclictest134050irq/121-eno111:27:421
248625399153,3cyclictest2592270-21aten2.4-expect08:36:321
248625399152,4cyclictest29021-21rtkit-daemon07:50:021
2486253991512,2cyclictest2614864-21kthreadcore08:51:411
2486253991512,2cyclictest1288-1atopacctd12:38:501
2486253991511,3cyclictest2564165-21kthreadcore08:11:401
248625299154,1cyclictest0-21swapper/007:26:310
248625299151,4cyclictest0-21swapper/011:26:330
2486252991513,1cyclictest2616256-21dump-pmu-power08:55:000
2486252991512,2cyclictest2628889-21aten2.4-expect09:06:330
2486252991512,2cyclictest2587482-21kthreadcore08:31:380
2486252991512,2cyclictest2587482-21kthreadcore08:31:380
2486252991512,2cyclictest2579906-21latency_hist08:25:020
2486252991512,2cyclictest2558731-21sed08:06:400
2486252991512,2cyclictest2550558-21cut08:01:380
2649091141,3phc2sys0-21swapper/307:16:323
2649091140,3phc2sys0-21swapper/311:15:183
2649091140,2phc2sys0-21swapper/311:37:103
2649091140,2phc2sys0-21swapper/311:22:263
2649091140,2phc2sys0-21swapper/311:22:263
2649091140,2phc2sys0-21swapper/311:09:523
2649091140,2phc2sys0-21swapper/309:40:113
2649091140,1phc2sys0-21swapper/312:33:443
2649091140,1phc2sys0-21swapper/312:01:163
26282902145,2sleep30-21swapper/309:04:553
2486254991412,1cyclictest0-21swapper/212:25:022
2486254991412,1cyclictest0-21swapper/209:45:242
2486254991412,1cyclictest0-21swapper/209:21:352
2486254991412,1cyclictest0-21swapper/208:45:002
2486254991412,1cyclictest0-21swapper/208:40:022
2486254991411,2cyclictest0-21swapper/208:26:332
2486254991411,1cyclictest0-21swapper/211:21:412
2486254991411,1cyclictest0-21swapper/211:21:412
2486254991411,1cyclictest0-21swapper/210:11:382
2486254991411,1cyclictest0-21swapper/209:11:282
2486254991411,1cyclictest0-21swapper/209:00:012
2486254991411,1cyclictest0-21swapper/207:56:402
248625399144,2cyclictest134050irq/121-eno108:31:431
248625399144,2cyclictest134050irq/121-eno108:31:431
2486253991411,2cyclictest2513314-21/usr/sbin/munin07:31:351
2486252991411,2cyclictest2605650-21irqcore08:46:360
2486252991411,2cyclictest2581337-21irqrtprio08:26:380
2486252991411,2cyclictest257-21systemd-journal08:55:070
2486252991411,2cyclictest2538815-21kernelversion07:51:380
2486252991411,2cyclictest2531603-21aten_repower_fr07:46:330
2486252991411,2cyclictest2506247-21sendmail_mailtr07:21:430
2649091135,2phc2sys0-21swapper/310:36:383
2649091135,2phc2sys0-21swapper/310:36:383
2649091134,2phc2sys0-21swapper/309:36:103
2649091130,2phc2sys0-21swapper/312:23:193
2649091130,2phc2sys0-21swapper/312:13:253
2649091130,2phc2sys0-21swapper/310:46:053
2649091130,2phc2sys0-21swapper/310:43:273
2649091130,2phc2sys0-21swapper/310:32:093
2649091130,2phc2sys0-21swapper/309:50:073
2649091130,2phc2sys0-21swapper/309:26:483
2649091130,2phc2sys0-21swapper/308:53:263
2649091130,2phc2sys0-21swapper/308:26:333
2649091130,1phc2sys0-21swapper/307:30:223
2486254991311,1cyclictest0-21swapper/212:01:042
2486254991311,1cyclictest0-21swapper/207:41:352
2486254991311,1cyclictest0-21swapper/207:10:012
2486254991310,1cyclictest0-21swapper/212:31:362
2486254991310,1cyclictest0-21swapper/207:51:332
2486253991310,2cyclictest2604770-21cpu08:46:321
2486253991310,2cyclictest2549711-21aten2.4-expect08:01:331
248625299133,3cyclictest2561966-21/usr/sbin/munin08:11:430
2486252991310,2cyclictest0-21swapper/007:10:010
2649091121,3phc2sys0-21swapper/307:36:313
2649091120,2phc2sys0-21swapper/308:56:393
2649091120,1phc2sys0-21swapper/307:22:093
248625499129,1cyclictest0-21swapper/208:46:362
2486254991210,1cyclictest0-21swapper/207:21:342
248625399129,2cyclictest0-21swapper/107:10:011
2649091112,2phc2sys0-21swapper/309:46:003
2649091111,4phc2sys0-21swapper/307:58:043
2649091111,4phc2sys0-21swapper/307:41:313
2649091111,2phc2sys0-21swapper/311:11:333
2649091110,2phc2sys0-21swapper/310:28:523
2649091110,2phc2sys0-21swapper/307:26:333
2649091110,1phc2sys0-21swapper/307:53:473
248625499119,1cyclictest0-21swapper/208:06:412
2649091102,3phc2sys0-21swapper/308:01:403
2649091101,2phc2sys0-21swapper/310:50:163
2649091101,2phc2sys0-21swapper/310:02:433
2649091101,2phc2sys0-21swapper/307:06:383
2649091100,2phc2sys0-21swapper/312:36:573
2649091100,2phc2sys0-21swapper/312:16:133
2649091100,2phc2sys0-21swapper/312:07:043
2649091100,2phc2sys0-21swapper/312:07:043
2649091100,2phc2sys0-21swapper/311:25:483
2649091100,2phc2sys0-21swapper/309:30:413
2649091100,2phc2sys0-21swapper/309:06:323
2649091100,2phc2sys0-21swapper/308:18:203
264909191,2phc2sys0-21swapper/308:10:063
264909191,2phc2sys0-21swapper/308:08:103
264909191,1phc2sys0-21swapper/308:46:333
264909190,2phc2sys0-21swapper/310:15:503
264909190,2phc2sys0-21swapper/310:05:323
264909190,2phc2sys0-21swapper/309:20:073
264909190,2phc2sys0-21swapper/308:30:023
264909190,2phc2sys0-21swapper/308:30:023
264909190,2phc2sys0-21swapper/307:49:553
264909190,2phc2sys0-21swapper/307:11:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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