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2025-12-21 - 16:53
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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 Sun Dec 21, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213955421110,2sleep00-21swapper/007:53:320
239780321050,2sleep30-21swapper/311:25:023
24860092790,1sleep10-21swapper/112:38:331
21498522510,0sleep02149854-21cmp08:00:010
208733799245,17cyclictest2246629-21awk09:20:010
208733799230,12cyclictest2252889-21munin-plugin-st09:25:010
208733799226,4cyclictest2428189-21systemd-run11:50:020
208733799218,5cyclictest0-21swapper/011:30:000
208733799211,15cyclictest2222490-21wc09:00:000
208733799211,10cyclictest1290-21dbus-daemon09:10:020
2087337992014,2cyclictest2397430-21apt-key11:25:000
2649091190,2phc2sys0-21swapper/312:33:323
208733999191,12cyclictest0-21swapper/208:50:012
2087338991916,2cyclictest2149919-21latency_hist08:00:011
2087338991916,2cyclictest2143732-21ls07:55:011
208733799195,6cyclictest1290-21dbus-daemon10:20:010
2087337991914,4cyclictest1313-21gmain10:05:020
2087337991913,5cyclictest2182245-21kthreadcore08:28:310
2087337991913,2cyclictest29021-21rtkit-daemon11:06:360
2087337991913,2cyclictest1-21systemd09:38:370
2087337991912,2cyclictest2488084-21dump-pmu-power12:40:010
2087337991912,2cyclictest2451974-21idleruntime-cro12:10:000
2087337991910,1cyclictest2429525-21irqcore11:53:310
208733999189,3cyclictest0-21swapper/210:20:012
2087339991815,1cyclictest0-21swapper/211:40:002
2087338991815,2cyclictest2458013-21cut12:15:001
2087338991814,3cyclictest2398537-21cstates11:28:281
2087338991814,3cyclictest2246231-21timerandwakeup09:18:391
2087338991814,3cyclictest2112748-21latency07:28:351
208733799188,2cyclictest0-21swapper/007:23:260
208733799185,5cyclictest0-21swapper/012:00:130
208733799183,7cyclictest0-21swapper/010:28:270
2087337991812,2cyclictest2465267-21gltestperf12:23:290
2087337991812,2cyclictest2437354-21kthreadcore11:58:340
2087337991812,2cyclictest2382318-21kthreadcore11:13:310
2087337991812,2cyclictest2288480-21sendmail_mailtr09:53:370
2087337991812,2cyclictest2199631-21fschecks_time08:43:300
2087337991812,2cyclictest2197887-21mailstats08:38:370
2087337991812,2cyclictest2087336-21cyclictest07:35:010
2087337991812,2cyclictest1296-21polkitd09:45:010
2087337991812,2cyclictest1296-21polkitd09:45:010
2087337991812,2cyclictest1286-21avahi-daemon10:50:010
2087337991810,4cyclictest0-21swapper/010:15:010
2087337991810,3cyclictest0-21swapper/007:28:340
2087337991810,3cyclictest0-21swapper/007:13:340
208733799180,10cyclictest2120193-21sshd07:38:020
208733999172,5cyclictest0-21swapper/209:20:012
2087339991714,1cyclictest0-21swapper/209:30:012
2087338991714,2cyclictest2477199-21fschecks_count12:33:291
2087338991714,2cyclictest2093444-21cut07:15:011
2087338991713,3cyclictest2328707-21kthreadcore10:28:331
208733799177,5cyclictest2414647-21tr11:38:350
208733799174,6cyclictest0-21swapper/011:18:220
208733799174,6cyclictest0-21swapper/011:18:220
2087337991711,2cyclictest2476783-21aten_repower_vo12:33:270
2087337991711,2cyclictest2405117-21gltestperf11:33:310
2087337991711,2cyclictest2325228-21sh10:25:000
2087337991711,2cyclictest2238907-21kthreadcore09:13:330
2087337991711,2cyclictest0-21swapper/009:35:010
2087337991710,3cyclictest2100307-21kthreadcore07:18:320
2087337991710,2cyclictest0-21swapper/011:45:010
2902298160,1rtkit-daemon29021-21rtkit-daemon08:28:241
2649091167,3phc2sys0-21swapper/310:25:003
2649091160,1phc2sys0-21swapper/309:35:353
208733999161,7cyclictest0-21swapper/208:20:012
2087339991614,1cyclictest0-21swapper/207:30:012
2087339991613,1cyclictest0-21swapper/211:03:322
2087339991613,1cyclictest0-21swapper/210:33:352
2087339991613,1cyclictest0-21swapper/210:33:352
2087339991613,1cyclictest0-21swapper/210:25:002
208733899165,2cyclictest0-21swapper/111:40:011
2087338991614,1cyclictest2349222-21latency_hist10:45:001
2087338991613,2cyclictest2383718-21tr11:13:321
2087338991613,2cyclictest2124836-21latency07:38:341
2087338991613,2cyclictest1313-21gmain09:04:551
2087338991612,3cyclictest2333007-21kthreadcore10:33:331
2087338991612,3cyclictest2333007-21kthreadcore10:33:331
2087338991612,3cyclictest1327-21in:imuxsock10:00:011
2087338991611,4cyclictest1288-1atopacctd12:18:321
208733799164,5cyclictest0-21swapper/009:01:320
208733799161,7cyclictest2258972-21cat09:30:010
208733799161,6cyclictest1290-21dbus-daemon10:00:020
2087337991610,2cyclictest2366719-21mailstats10:58:360
2087337991610,2cyclictest2207998-21kthreadcore08:48:340
2087337991610,2cyclictest2174247-21latency_hist08:20:010
2087337991610,2cyclictest2156887-21tr08:08:280
2087337991610,2cyclictest0-21swapper/007:45:010
2087339991513,1cyclictest0-21swapper/208:10:012
2087339991512,1cyclictest0-21swapper/212:35:012
2087339991512,1cyclictest0-21swapper/211:33:312
2087339991512,1cyclictest0-21swapper/210:30:012
2087339991512,1cyclictest0-21swapper/208:25:002
2087339991512,1cyclictest0-21swapper/208:04:522
2087339991512,1cyclictest0-21swapper/208:00:012
2087339991512,1cyclictest0-21swapper/207:15:022
208733999150,7cyclictest0-21swapper/207:18:242
208733999150,13cyclictest0-21swapper/210:38:252
208733899158,3cyclictest0-21swapper/109:47:221
208733899157,4cyclictest2150672-21tail08:03:261
208733899156,6cyclictest0-21swapper/110:03:271
208733899156,1cyclictest191rcu_preempt10:38:251
2087338991512,2cyclictest2445469-21mailstats12:03:381
2087338991512,2cyclictest2349961-21cpu10:48:271
2087338991512,2cyclictest2302357-21gltestperf10:08:311
2087338991512,2cyclictest2176223-21kthreadcore08:23:331
2087338991512,2cyclictest1-21systemd11:10:011
2087338991511,3cyclictest2307877-21cpuspeed_turbos10:13:281
2087338991511,3cyclictest2208748-21kthreadcore08:48:341
2087338991511,3cyclictest2196821-21kthreadcore08:38:331
208733799156,5cyclictest2305704-21tr10:08:350
208733799150,6cyclictest2180097-21apt-get08:25:020
2902298140,1rtkit-daemon0-21swapper/108:51:261
2649091140,1phc2sys0-21swapper/308:33:083
2649091140,1phc2sys0-21swapper/308:07:233
208733999143,5cyclictest0-21swapper/209:00:012
2087339991412,1cyclictest0-21swapper/209:25:022
2087339991412,1cyclictest0-21swapper/209:15:012
2087339991412,1cyclictest0-21swapper/208:13:262
2087339991411,1cyclictest0-21swapper/212:30:012
2087339991411,1cyclictest0-21swapper/212:08:282
2087339991411,1cyclictest0-21swapper/211:55:012
2087339991411,1cyclictest0-21swapper/210:03:352
2087339991411,1cyclictest0-21swapper/209:33:292
2087339991411,1cyclictest0-21swapper/208:38:362
2087339991411,1cyclictest0-21swapper/207:53:302
208733999140,6cyclictest0-21swapper/209:10:012
208733899149,1cyclictest2119713-21kworker/1:1+events_freezable08:07:301
208733899148,2cyclictest134050irq/121-eno108:40:231
208733899147,1cyclictest134050irq/121-eno111:48:331
2087338991412,1cyclictest0-21swapper/107:35:021
2087338991411,2cyclictest2465906-21kthreadcore12:23:321
2087338991411,2cyclictest2446702-21aten_repower_vo12:08:271
2087338991411,2cyclictest2433980-21sh11:55:011
2087338991411,2cyclictest2405163-21gltestperf11:33:311
2087338991411,2cyclictest2319138-21sh10:20:011
2087338991411,2cyclictest2265183-21systemd-run09:35:011
2087338991411,2cyclictest2253511-21aten_repower_en09:28:261
2087338991411,2cyclictest2235727-21fschecks_time09:13:291
2087338991411,2cyclictest2222484-21latency_hist09:00:021
2087338991411,2cyclictest2104517-21kthreadcore07:23:321
2087338991410,3cyclictest2417456-21irqcore11:43:311
2087338991410,3cyclictest2165813-21kthreadcore08:13:321
2087338991410,1cyclictest191rcu_preempt08:16:151
208733799148,4cyclictest0-21swapper/012:28:290
208733799147,5cyclictest257-21systemd-journal08:55:000
2087337991411,2cyclictest2361211-21cron10:55:010
2087337991411,2cyclictest2156049-21latency_hist08:05:000
2087337991410,3cyclictest2187904-21irqcore08:33:320
2087337991410,3cyclictest2134590-21kthreadcore07:48:350
2649091131,2phc2sys0-21swapper/310:33:493
2649091131,2phc2sys0-21swapper/310:33:493
2649091130,4phc2sys0-21swapper/307:13:423
2649091130,3phc2sys0-21swapper/307:58:263
2649091130,2phc2sys0-21swapper/311:33:293
2649091130,2phc2sys0-21swapper/311:15:013
208733999139,1cyclictest0-21swapper/212:24:402
208733999132,3cyclictest0-21swapper/212:00:012
2087339991311,1cyclictest0-21swapper/207:40:022
2087339991310,1cyclictest0-21swapper/212:15:012
2087339991310,1cyclictest0-21swapper/211:18:342
2087339991310,1cyclictest0-21swapper/211:18:342
2087339991310,1cyclictest0-21swapper/210:43:382
2087339991310,1cyclictest0-21swapper/209:58:342
2087339991310,1cyclictest0-21swapper/209:48:332
2087339991310,1cyclictest0-21swapper/209:41:512
2087339991310,1cyclictest0-21swapper/209:41:512
208733899137,1cyclictest601rcuop/310:50:071
208733899136,2cyclictest501rcuop/210:22:461
208733899135,3cyclictest501rcuop/211:57:481
208733899135,3cyclictest501rcuop/209:38:141
208733899135,3cyclictest501rcuop/207:16:161
208733899134,3cyclictest501rcuop/212:28:091
208733899134,3cyclictest501rcuop/210:56:441
208733899134,3cyclictest501rcuop/209:42:591
208733899134,3cyclictest501rcuop/209:42:591
208733899134,3cyclictest501rcuop/207:45:331
2087338991311,1cyclictest2229166-21aten2.4-expect09:08:291
2087338991310,2cyclictest2392016-21aten_repower_po11:23:271
2087338991310,2cyclictest2387183-21kthreadcore11:18:331
2087338991310,2cyclictest2387183-21kthreadcore11:18:331
2087338991310,2cyclictest2188141-21irqrtprio08:33:321
2087338991310,2cyclictest2131912-21latency_hist07:45:021
208733799139,3cyclictest2347173-21kthreadcore10:43:340
208733799138,4cyclictest2338837-21cut10:38:300
208733799134,5cyclictest0-21swapper/010:33:180
208733799134,5cyclictest0-21swapper/010:33:180
208733799134,4cyclictest2373464-21cat11:05:020
2087337991310,2cyclictest2281189-21kthreadcore09:48:350
2087337991310,2cyclictest2087341-21systemd-run07:10:010
2087337991310,2cyclictest0-21swapper/008:15:010
2649091123,2phc2sys0-21swapper/310:15:023
2649091120,1phc2sys0-21swapper/311:38:343
2649091120,1phc2sys0-21swapper/309:56:433
208733999129,1cyclictest0-21swapper/212:38:362
208733999129,1cyclictest0-21swapper/211:11:582
208733999129,1cyclictest0-21swapper/211:05:492
208733999129,1cyclictest0-21swapper/210:55:352
208733999129,1cyclictest0-21swapper/210:08:292
208733999129,1cyclictest0-21swapper/209:53:272
208733999129,1cyclictest0-21swapper/208:28:322
208733999129,1cyclictest0-21swapper/207:46:082
208733999129,1cyclictest0-21swapper/207:24:382
208733999128,1cyclictest0-21swapper/208:30:102
2087339991210,1cyclictest0-21swapper/211:45:012
2087339991210,1cyclictest0-21swapper/210:13:282
2087339991210,1cyclictest0-21swapper/209:38:292
2087339991210,1cyclictest0-21swapper/208:53:272
2087339991210,1cyclictest0-21swapper/207:35:002
208733899129,2cyclictest2087402-21unin-run07:10:021
208733899126,1cyclictest601rcuop/311:00:411
208733899124,3cyclictest501rcuop/209:50:121
208733899124,3cyclictest501rcuop/209:22:431
208733799129,2cyclictest2458711-21aten_repower_vo12:18:270
208733799129,2cyclictest2453917-21kthreadcore12:13:320
2649091111,4phc2sys0-21swapper/309:18:273
2649091110,2phc2sys0-21swapper/309:11:023
2649091110,1phc2sys0-21swapper/312:21:023
2649091110,1phc2sys0-21swapper/311:09:563
2649091110,1phc2sys0-21swapper/310:56:133
2649091110,1phc2sys0-21swapper/310:52:133
2649091110,1phc2sys0-21swapper/307:21:263
208733999119,1cyclictest0-21swapper/212:15:272
208733999119,1cyclictest0-21swapper/211:27:202
208733999119,1cyclictest0-21swapper/211:23:312
208733999119,1cyclictest0-21swapper/210:51:292
208733999119,1cyclictest0-21swapper/208:41:262
208733999119,1cyclictest0-21swapper/207:42:032
208733999118,1cyclictest0-21swapper/212:00:052
208733999118,1cyclictest0-21swapper/210:45:202
2649091103,1phc2sys0-21swapper/311:18:333
2649091103,1phc2sys0-21swapper/311:18:333
2649091102,3phc2sys0-21swapper/309:06:263
2649091101,3phc2sys0-21swapper/307:18:263
2649091101,2phc2sys0-21swapper/309:28:263
2649091100,2phc2sys0-21swapper/310:04:033
2649091100,2phc2sys0-21swapper/309:30:093
2649091100,2phc2sys0-21swapper/308:48:313
2649091100,2phc2sys0-21swapper/308:45:023
2649091100,2phc2sys0-21swapper/308:38:333
2649091100,1phc2sys0-21swapper/312:29:473
2649091100,1phc2sys0-21swapper/312:00:053
2649091100,1phc2sys0-21swapper/311:53:173
2649091100,1phc2sys0-21swapper/310:42:233
2649091100,1phc2sys0-21swapper/310:06:013
2649091100,1phc2sys0-21swapper/308:57:443
2649091100,1phc2sys0-21swapper/308:02:343
2649091100,1phc2sys0-21swapper/307:49:193
2649091100,1phc2sys0-21swapper/307:40:073
208733999108,1cyclictest0-21swapper/211:47:482
208733999108,1cyclictest0-21swapper/209:00:542
264909192,1phc2sys0-21swapper/309:03:133
264909191,3phc2sys0-21swapper/310:20:013
264909191,2phc2sys0-21swapper/312:18:293
264909190,2phc2sys0-21swapper/312:36:193
264909190,2phc2sys0-21swapper/311:48:323
264909190,2phc2sys0-21swapper/311:28:283
264909190,2phc2sys0-21swapper/310:38:303
264909190,2phc2sys0-21swapper/310:29:553
264909190,2phc2sys0-21swapper/308:21:223
264909190,2phc2sys0-21swapper/308:13:283
264909190,2phc2sys0-21swapper/307:38:333
264909190,2phc2sys0-21swapper/307:08:323
264909190,1phc2sys0-21swapper/312:08:273
264909190,1phc2sys0-21swapper/311:01:263
264909190,1phc2sys0-21swapper/308:15:293
264909183,2phc2sys0-21swapper/311:56:003
264909181,3phc2sys0-21swapper/307:33:273
264909181,2phc2sys0-21swapper/310:47:163
264909181,2phc2sys0-21swapper/309:52:063
264909181,2phc2sys0-21swapper/308:50:593
264909181,2phc2sys0-21swapper/307:50:473
264909180,2phc2sys0-21swapper/312:13:363
264909180,2phc2sys0-21swapper/309:40:363
264909180,2phc2sys0-21swapper/309:40:363
264909180,2phc2sys0-21swapper/309:23:413
264909180,2phc2sys0-21swapper/307:28:273
264909180,1phc2sys0-21swapper/311:41:553
264909180,1phc2sys0-21swapper/309:45:213
264909180,1phc2sys0-21swapper/308:28:073
2081783281,3sleep20-21swapper/207:08:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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