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2026-08-06 - 21:40
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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 Thu Aug 06, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
244769621160,2sleep30-21swapper/311:00:013
228984421010,1sleep10-21swapper/109:10:491
219221421010,2sleep30-21swapper/307:50:483
23206362920,2sleep30-21swapper/309:32:233
213583999231,7cyclictest0-21swapper/211:20:202
213583699235,12cyclictest664-21dbus-daemon10:00:011
24795482220,2sleep02479550-21tr11:20:420
2135836992218,3cyclictest2492504-21systemd-run11:30:021
2135836992216,2cyclictest191rcu_preempt09:40:241
2135835992217,4cyclictest690-21rs:main0
1157598220,2rtkit-daemon1309-21mta-sts-daemon11:39:150
2135836992115,2cyclictest69250irq/121-eno111:15:011
2135835992111,5cyclictest0-21swapper/010:25:430
23530132200,1sleep20-21swapper/209:55:432
2135839992017,1cyclictest0-21swapper/209:05:002
2135839992017,1cyclictest0-21swapper/209:05:002
2135836992018,1cyclictest2135833-21cyclictest11:20:011
2135836992017,2cyclictest2462509-21dump-pmu-power11:10:011
2135835992017,2cyclictest2508564-21sed11:40:380
2135835992013,6cyclictest2331166-21kthreadcore09:40:420
2135835992012,4cyclictest1300-21mta-sts-daemon09:13:580
2135835992010,5cyclictest0-21swapper/012:10:020
2135839991916,1cyclictest0-21swapper/209:20:012
2135839991915,2cyclictest0-21swapper/211:50:422
2135836991916,2cyclictest2313985-21apt-config09:30:011
2135836991916,2cyclictest2211030-21systemd08:10:021
2135836991914,1cyclictest191rcu_preempt11:45:351
2135836991911,4cyclictest2381820-21fschecks_count10:15:381
213583599199,5cyclictest0-21swapper/012:01:460
213583599199,5cyclictest0-21swapper/010:11:570
213583599198,6cyclictest0-21swapper/009:50:410
2135835991917,1cyclictest0-21swapper/012:40:020
2135835991916,2cyclictest0-21swapper/011:00:460
2135835991915,2cyclictest2574136-21sh12:25:020
2135835991913,5cyclictest714-21gdbus11:20:020
2135835991911,4cyclictest2323289-21irqrtprio09:35:410
3240591180,2phc2sys0-21swapper/312:15:023
3240591180,2phc2sys0-21swapper/311:11:163
213583699182,6cyclictest268-21systemd-journal09:35:011
2135836991815,2cyclictest2588779-21latency_hist12:35:011
2135836991815,2cyclictest2404107-21cstates10:30:371
2135836991815,2cyclictest2351136-21dump-pmu-power09:55:011
2135836991815,2cyclictest2146425-21kthreadcore07:15:411
2135836991815,2cyclictest2146425-21kthreadcore07:15:411
2135836991814,3cyclictest664-21dbus-daemon11:55:011
2135836991813,1cyclictest2336370-21kworker/1:2+events_freezable09:45:421
2135836991813,1cyclictest191rcu_preempt10:54:391
213583699180,8cyclictest0-21swapper/111:00:201
213583599188,5cyclictest0-21swapper/010:15:470
213583599187,6cyclictest0-21swapper/011:32:060
2135835991815,2cyclictest2142126-21ps07:15:020
2135835991813,2cyclictest1300-21mta-sts-daemon10:53:390
2135835991813,1cyclictest1157598rtkit-daemon10:08:230
2135835991812,5cyclictest1309-21mta-sts-daemon09:55:340
2135835991810,3cyclictest664-21dbus-daemon12:35:010
3240591175,2phc2sys0-21swapper/311:52:123
3240591170,5phc2sys0-21swapper/312:20:193
213583999172,5cyclictest0-21swapper/212:20:022
213583999171,8cyclictest0-21swapper/208:05:192
2135839991715,1cyclictest0-21swapper/209:39:302
2135839991714,1cyclictest0-21swapper/212:20:422
2135839991714,1cyclictest0-21swapper/210:45:012
2135839991714,1cyclictest0-21swapper/209:50:372
2135839991714,1cyclictest0-21swapper/209:30:012
2135839991714,1cyclictest0-21swapper/207:40:002
213583699179,1cyclictest191rcu_preempt10:00:131
213583699178,4cyclictest0-21swapper/109:15:401
213583699173,3cyclictest191rcu_preempt10:50:011
2135836991714,2cyclictest2367186-21gltestperf10:05:401
2135836991714,2cyclictest2277965-21munin-plugin-st09:05:011
2135836991714,2cyclictest2277965-21munin-plugin-st09:05:011
2135836991714,2cyclictest2143749-21latency_hist07:15:031
2135836991714,2cyclictest1-21systemd10:10:461
2135836991713,3cyclictest1300-21mta-sts-daemon12:00:251
2135836991712,4cyclictest1-21systemd11:00:021
2135836991711,5cyclictest1997263-21kworker/u16:3-writeback07:45:011
2135836991711,2cyclictest601rcuop/312:16:371
2135836991710,2cyclictest2380775-21kworker/1:0+events_freezable10:35:201
213583599179,4cyclictest0-21swapper/010:30:430
213583599171,4cyclictest2307495-21diskstats09:25:380
2135835991714,2cyclictest2416578-21grep10:35:480
2135835991714,2cyclictest2292610-21tail09:15:360
2135835991714,2cyclictest2247523-21sendmail08:40:010
2135835991713,3cyclictest268-21systemd-journal07:10:020
2135835991713,2cyclictest0-21swapper/012:15:020
213583599170,12cyclictest2306033-21ssh09:24:390
3240591160,3phc2sys0-21swapper/311:49:243
3240591160,2phc2sys0-21swapper/310:31:413
213583999169,3cyclictest0-21swapper/210:05:212
2135839991614,1cyclictest0-21swapper/211:50:032
2135839991614,1cyclictest0-21swapper/210:40:012
2135839991614,1cyclictest0-21swapper/208:30:012
2135839991614,1cyclictest0-21swapper/208:05:022
2135839991613,1cyclictest0-21swapper/211:27:182
2135839991613,1cyclictest0-21swapper/210:30:022
2135839991613,1cyclictest0-21swapper/210:10:382
2135839991613,1cyclictest0-21swapper/209:05:412
2135839991613,1cyclictest0-21swapper/207:35:012
2135839991613,1cyclictest0-21swapper/207:15:022
2135839991612,1cyclictest0-21swapper/209:45:482
213583999160,8cyclictest0-21swapper/212:40:022
213583699167,5cyclictest2192757-21latency_hist07:55:011
213583699167,1cyclictest2228804-21taskset08:22:131
213583699166,2cyclictest501rcuop/208:50:471
213583699166,2cyclictest191rcu_preempt09:35:391
213583699163,3cyclictest351ktimers/112:11:081
2135836991613,2cyclictest351ktimers/111:56:471
2135836991613,2cyclictest2498174-21xargs11:30:471
2135836991613,2cyclictest2281010-21kthreadcore09:05:431
2135836991613,2cyclictest2235252-21apt-config08:30:011
2135836991612,3cyclictest2578964-21kthreadcore12:25:431
2135836991612,3cyclictest2219067-21kthreadcore08:15:421
2135836991611,2cyclictest1309-21mta-sts-daemon11:38:141
2135836991611,1cyclictest191rcu_preempt12:38:521
2135836991611,1cyclictest191rcu_preempt07:35:431
213583699160,7cyclictest2372639-21kworker/u16:2+events_power_efficient10:20:191
213583599169,2cyclictest0-21swapper/012:19:050
213583599166,5cyclictest0-21swapper/010:20:360
213583599165,6cyclictest0-21swapper/008:40:220
2135835991613,2cyclictest759-1atopacctd10:43:150
2135835991613,2cyclictest2432962-21sh10:50:010
2135835991613,2cyclictest2175108-21cpuspeed_turbos07:40:360
2135835991613,2cyclictest2174503-21munin-plugin-st07:40:010
2135835991613,2cyclictest0-21swapper/009:10:020
2135835991613,2cyclictest0-21swapper/008:30:020
2135835991612,3cyclictest2235887-21aten_repower_vo08:30:320
213583599160,11cyclictest2536133-21ssh11:57:440
213583599160,11cyclictest2260044-21sshd08:50:240
3240591154,2phc2sys0-21swapper/312:06:113
3240591151,6phc2sys0-21swapper/311:30:193
3240591150,3phc2sys0-21swapper/310:05:503
3240591150,2phc2sys0-21swapper/310:17:213
3240591150,2phc2sys0-21swapper/310:04:293
3240591150,2phc2sys0-21swapper/309:43:583
3240591150,2phc2sys0-21swapper/308:18:583
213583999152,6cyclictest0-21swapper/208:50:012
2135839991513,1cyclictest0-21swapper/212:25:392
2135839991513,1cyclictest0-21swapper/212:10:492
2135839991513,1cyclictest0-21swapper/210:35:012
2135839991513,1cyclictest0-21swapper/210:20:472
2135839991512,1cyclictest0-21swapper/212:30:422
2135839991512,1cyclictest0-21swapper/212:10:022
2135839991512,1cyclictest0-21swapper/212:00:392
2135839991512,1cyclictest0-21swapper/212:00:002
2135839991512,1cyclictest0-21swapper/211:40:362
2135839991512,1cyclictest0-21swapper/211:05:012
2135839991512,1cyclictest0-21swapper/210:15:422
2135839991512,1cyclictest0-21swapper/210:00:442
2135839991512,1cyclictest0-21swapper/209:35:012
2135839991512,1cyclictest0-21swapper/208:00:012
2135839991511,1cyclictest0-21swapper/211:20:032
213583699158,1cyclictest501rcuop/211:42:161
213583699156,4cyclictest2252033-21tr08:40:431
213583699154,2cyclictest69250irq/121-eno107:30:191
2135836991512,2cyclictest2253888-21/usr/sbin/munin08:45:421
2135836991512,2cyclictest2214177-21kthreadcore08:10:421
2135836991512,2cyclictest1309-21mta-sts-daemon12:05:471
2135836991512,2cyclictest1-21systemd11:25:031
2135836991511,3cyclictest2301186-21kthreadcore09:20:421
2135836991510,4cyclictest2351390-21kworker/u16:0+nfsiod10:40:441
2135836991510,1cyclictest2168221-21kworker/u16:1+events_unbound07:55:421
213583699150,4cyclictest36-21ksoftirqd/107:25:001
213583599157,7cyclictest0-21swapper/011:10:200
213583599157,4cyclictest0-21swapper/011:45:390
213583599156,2cyclictest0-21swapper/010:55:420
213583599152,5cyclictest2460510-21pmu-power11:05:460
2135835991512,2cyclictest2581329-21ls12:30:010
2135835991512,2cyclictest2487148-21kthreadcore11:25:400
2135835991512,2cyclictest2341672-21needreboot09:45:440
2135835991512,2cyclictest2223270-21systemd08:20:030
2135835991512,2cyclictest2156512-21cut07:25:020
2135835991512,2cyclictest0-21swapper/007:20:000
2135835991512,2cyclictest0-21swapper/007:20:000
2135835991511,3cyclictest2214007-21kthreadcore08:10:420
2135835991510,4cyclictest1306-21mta-sts-daemon07:55:270
3240591140,2phc2sys0-21swapper/312:30:523
3240591140,2phc2sys0-21swapper/310:49:123
3240591140,2phc2sys0-21swapper/309:23:303
213583999141,7cyclictest0-21swapper/207:20:012
213583999141,7cyclictest0-21swapper/207:20:012
2135839991412,1cyclictest0-21swapper/209:15:002
2135839991412,1cyclictest0-21swapper/208:55:032
2135839991411,1cyclictest0-21swapper/211:10:432
2135839991411,1cyclictest0-21swapper/210:55:442
2135839991411,1cyclictest0-21swapper/210:50:422
2135839991411,1cyclictest0-21swapper/210:48:262
2135839991411,1cyclictest0-21swapper/208:15:482
213583699147,2cyclictest191rcu_preempt07:50:011
213583699147,1cyclictest21605921kthreadcore07:25:431
2135836991411,2cyclictest2568268-21irqrtprio12:20:391
2135836991411,2cyclictest2399176-21kthreadcore10:25:431
2135836991411,2cyclictest2200561-21tr08:00:421
213583599145,5cyclictest0-21swapper/008:56:450
213583599145,5cyclictest0-21swapper/008:56:450
213583599145,5cyclictest0-21swapper/007:31:540
213583599144,5cyclictest1034-21runrttasks10:00:510
2135835991411,2cyclictest2272414-21cpuspeed_turbos09:00:360
2135835991411,2cyclictest2272414-21cpuspeed_turbos09:00:360
2135835991411,2cyclictest2223999-21fschecks_time08:20:380
2135835991411,2cyclictest2188075-21irqrtprio07:50:410
2135835991411,2cyclictest2161457-21pmu-power07:25:460
2135835991411,2cyclictest1307-21mta-sts-daemon09:32:320
2135835991411,2cyclictest1300-21mta-sts-daemon08:05:380
3240591131,2phc2sys0-21swapper/309:40:023
3240591130,2phc2sys0-21swapper/311:40:463
3240591130,2phc2sys0-21swapper/311:38:463
3240591130,2phc2sys0-21swapper/311:29:163
3240591130,2phc2sys0-21swapper/310:43:313
3240591130,2phc2sys0-21swapper/310:39:023
3240591130,2phc2sys0-21swapper/309:00:303
3240591130,2phc2sys0-21swapper/309:00:303
3240591130,2phc2sys0-21swapper/307:44:163
3240591130,1phc2sys0-21swapper/309:56:173
213583999139,2cyclictest0-21swapper/211:33:092
2135839991311,1cyclictest0-21swapper/211:35:372
2135839991310,2cyclictest0-21swapper/211:05:532
2135839991310,2cyclictest0-21swapper/208:55:102
2135839991310,2cyclictest0-21swapper/208:55:102
2135839991310,1cyclictest0-21swapper/209:41:562
2135839991310,1cyclictest0-21swapper/208:40:472
2135839991310,1cyclictest0-21swapper/208:30:412
2135839991310,1cyclictest0-21swapper/208:20:402
2135839991310,1cyclictest0-21swapper/208:10:412
2135839991310,1cyclictest0-21swapper/207:20:412
2135839991310,1cyclictest0-21swapper/207:10:022
2135836991310,2cyclictest838-21gmain09:00:021
2135836991310,2cyclictest838-21gmain09:00:021
2135836991310,2cyclictest2241827-21aten_repower_en08:35:251
2135836991310,2cyclictest2236026-21cpuspeed_turbos08:30:361
213583599136,5cyclictest2180923-21apt-get07:45:210
213583599131,7cyclictest2524717-21cut11:50:410
2135835991310,2cyclictest2199262-21aten_repower_vo08:00:330
3240591123,2phc2sys0-21swapper/309:10:563
3240591121,2phc2sys0-21swapper/308:30:373
3240591120,3phc2sys0-21swapper/309:25:193
3240591120,2phc2sys0-21swapper/311:16:013
3240591120,2phc2sys0-21swapper/308:56:173
3240591120,2phc2sys0-21swapper/308:56:173
3240591120,1phc2sys0-21swapper/309:49:323
3240591120,1phc2sys0-21swapper/308:07:493
3240591120,1phc2sys0-21swapper/307:45:093
213583999129,1cyclictest0-21swapper/208:35:422
213583999129,1cyclictest0-21swapper/207:40:372
213583999125,4cyclictest2187054-21chrt07:50:272
213583699129,2cyclictest36-21ksoftirqd/107:10:031
3240591111,4phc2sys0-21swapper/308:00:013
3240591111,3phc2sys0-21swapper/312:15:463
3240591111,2phc2sys0-21swapper/311:05:073
3240591110,5phc2sys0-21swapper/308:10:203
3240591110,3phc2sys0-21swapper/312:25:203
3240591110,2phc2sys0-21swapper/308:35:213
3240591110,2phc2sys0-21swapper/308:00:433
3240591110,2phc2sys0-21swapper/307:30:023
3240591110,2phc2sys0-21swapper/307:15:193
3240591110,2phc2sys0-21swapper/307:15:193
3240591110,2phc2sys0-21swapper/307:07:183
3240591110,1phc2sys0-21swapper/311:59:303
3240591110,1phc2sys0-21swapper/307:21:283
213583999118,2cyclictest0-21swapper/207:25:282
213583999118,1cyclictest0-21swapper/209:20:352
213583999118,1cyclictest0-21swapper/207:45:432
3240591104,2phc2sys0-21swapper/310:20:453
3240591101,2phc2sys0-21swapper/310:25:433
3240591101,2phc2sys0-21swapper/309:54:453
3240591101,2phc2sys0-21swapper/307:10:463
3240591100,3phc2sys0-21swapper/310:10:483
3240591100,2phc2sys0-21swapper/311:20:383
3240591100,2phc2sys0-21swapper/311:01:423
3240591100,2phc2sys0-21swapper/310:52:423
3240591100,2phc2sys0-21swapper/309:15:373
3240591100,2phc2sys0-21swapper/309:08:233
3240591100,2phc2sys0-21swapper/308:45:193
3240591100,2phc2sys0-21swapper/308:40:423
3240591100,1phc2sys0-21swapper/312:01:343
324059191,3phc2sys0-21swapper/307:30:193
324059191,2phc2sys0-21swapper/312:35:143
324059190,2phc2sys0-21swapper/308:54:453
324059190,2phc2sys0-21swapper/308:25:323
324059190,2phc2sys0-21swapper/308:20:193
324059190,2phc2sys0-21swapper/307:35:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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