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2025-12-18 - 13:29
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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 Dec 18, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2789262680,1sleep1278929-21grep21:18:431
2011402290,2sleep30-21swapper/320:15:013
120083992522,2cyclictest237116-21latency_hist20:45:011
12008499232,12cyclictest0-21swapper/223:30:012
12008499224,15cyclictest0-21swapper/222:30:012
120084992018,1cyclictest0-21swapper/222:00:012
12008299209,7cyclictest1-21systemd20:20:010
12008299204,5cyclictest430841-21aten2.4-expect23:28:300
120082992011,5cyclictest299438-21cut21:38:370
120082992011,4cyclictest340252-21aten2.4-expect22:13:300
120084991917,1cyclictest0-21swapper/219:30:002
120084991916,1cyclictest0-21swapper/221:20:002
120083991917,1cyclictest0-21swapper/100:40:011
120083991916,2cyclictest158644-21ls19:40:001
12008299196,7cyclictest484765-21latency_hist00:10:010
12008299194,6cyclictest213703-21telnet20:28:310
120082991915,3cyclictest494009-21kthreadcore00:18:380
120082991912,5cyclictest467094-21apt-get23:58:300
120082991911,4cyclictest316233-21aten2.4-expect21:53:290
120082991910,5cyclictest400032-21dump-pmu-power23:04:560
120082991910,4cyclictest394700-21aten2.4-expect22:58:300
120083991815,2cyclictest257-21systemd-journal23:35:001
120083991815,2cyclictest0-21swapper/122:25:001
120083991814,3cyclictest1326-21systemd-logind22:50:011
12008299188,6cyclictest2016-21snmpd19:13:290
12008299188,5cyclictest0-21swapper/022:08:320
12008299184,6cyclictest388769-21telnet22:53:310
12008299183,5cyclictest503371-21aten2.4-expect00:28:310
12008299182,5cyclictest412684-21aten2.4-expect23:13:280
12008299182,5cyclictest304274-21aten2.4-expect21:43:300
12008299182,5cyclictest237843-21aten2.4-expect20:48:300
120082991815,2cyclictest498593-21kthreadcore00:23:360
120082991815,2cyclictest451820-21kthreadcore23:43:360
120082991815,2cyclictest427472-21kthreadcore23:23:400
120082991815,2cyclictest282520-21kthreadcore21:23:370
120082991814,3cyclictest359195-21gltestperf22:28:340
120082991814,3cyclictest169817-21latency19:48:390
120082991813,1cyclictest134050irq/121-eno120:13:290
120082991810,4cyclictest273816-21aten2.4-expect21:18:300
120084991714,1cyclictest0-21swapper/223:13:292
120084991714,1cyclictest0-21swapper/219:49:552
12008499170,14cyclictest206977-21chrt20:19:572
120083991714,2cyclictest1286-21avahi-daemon21:55:001
120083991713,3cyclictest173171-21kthreadcore19:53:371
120083991713,3cyclictest1326-21systemd-logind22:55:011
12008299178,5cyclictest153299-21telnet19:38:310
12008299178,5cyclictest1-21systemd20:00:010
12008299175,7cyclictest455142-21aten2.4-expect23:48:300
12008299173,4cyclictest442860-21aten2.4-expect23:38:320
12008299172,5cyclictest243849-21aten2.4-expect20:53:310
120082991714,2cyclictest510611-21kthreadcore00:33:370
120082991714,2cyclictest421430-21kthreadcore23:18:390
120082991714,2cyclictest373318-21kthreadcore22:38:390
120082991714,2cyclictest351864-21cut22:20:020
120082991714,2cyclictest258468-21kthreadcore21:03:390
120082991714,2cyclictest228394-21kthreadcore20:38:390
120082991714,2cyclictest149930-21kthreadcore19:33:380
120082991714,2cyclictest146469-21apt-key19:30:000
120082991714,2cyclictest137644-21kthreadcore19:23:380
120082991713,3cyclictest354997-21kthreadcore22:23:380
120082991713,3cyclictest287086-21kthreadcore21:28:370
120082991713,3cyclictest250997-21kthreadcore20:58:370
120082991713,3cyclictest250997-21kthreadcore20:58:370
120082991713,3cyclictest210360-21kthreadcore20:23:370
120082991713,3cyclictest1326-21systemd-logind00:15:010
120082991712,1cyclictest491rcuog/219:43:040
120082991711,3cyclictest0-21swapper/021:12:050
120082991711,2cyclictest134050irq/121-eno121:32:290
12008499161,8cyclictest0-21swapper/223:50:012
120084991614,1cyclictest0-21swapper/223:35:002
120084991614,1cyclictest0-21swapper/222:45:022
120084991614,1cyclictest0-21swapper/200:00:032
120084991613,1cyclictest0-21swapper/223:55:012
120084991613,1cyclictest0-21swapper/221:50:012
120084991613,1cyclictest0-21swapper/220:13:302
12008499160,13cyclictest400314-21chrt23:00:022
12008499160,13cyclictest297532-21chrt21:35:032
12008399166,2cyclictest134050irq/121-eno120:48:311
120083991613,2cyclictest484164-21mailstats00:08:431
120083991613,2cyclictest308879-21pmu-power21:43:391
120083991613,2cyclictest227615-21kthreadcore20:38:381
120083991613,2cyclictest1-21systemd23:40:011
120083991613,2cyclictest120080-21cyclictest23:43:411
120083991612,3cyclictest218148-21latency20:28:391
120083991612,3cyclictest1288-1atopacctd23:53:301
12008399160,7cyclictest178837-21grep19:58:351
12008299168,4cyclictest0-21swapper/021:08:370
12008299165,6cyclictest188969-21ls20:05:000
12008299165,4cyclictest376659-21aten2.4-expect22:43:310
12008299161,4cyclictest436841-21aten2.4-expect23:33:310
120082991613,2cyclictest516202-21sed00:38:360
120082991613,2cyclictest473477-21cpuspeed_turbos00:03:320
120082991613,2cyclictest409400-21kthreadcore23:08:380
120082991613,2cyclictest382680-21aten_repower_en22:48:310
120082991613,2cyclictest328805-21cut22:03:340
120082991613,2cyclictest311446-21kthreadcore21:48:370
120082991613,2cyclictest234709-21kthreadcore20:43:380
120082991613,2cyclictest192309-21kthreadcore20:08:390
120082991612,3cyclictest365241-21gltestperf22:33:330
120082991612,3cyclictest171558-21cpuspeed_turbos19:53:320
2649091151,9phc2sys0-21swapper/321:43:223
12008499154,5cyclictest1724452sleep219:53:372
120084991513,1cyclictest0-21swapper/221:30:012
120084991513,1cyclictest0-21swapper/200:15:012
120084991512,1cyclictest0-21swapper/221:33:422
12008499150,13cyclictest394029-21chrt22:54:572
12008499150,13cyclictest267447-21chrt21:10:022
12008499150,13cyclictest231387-21chrt20:40:052
12008499150,12cyclictest508705-21chrt00:29:592
12008499150,12cyclictest484644-21chrt00:09:552
12008499150,12cyclictest412046-21chrt23:09:562
12008499150,12cyclictest382331-21chrt22:45:042
12008499150,12cyclictest225359-21chrt20:35:042
12008499150,12cyclictest182978-21chrt20:00:012
12008499150,12cyclictest146894-21chrt19:30:042
12008499150,12cyclictest126101-21chrt19:15:012
12008399159,2cyclictest134050irq/121-eno122:57:261
12008399155,2cyclictest134050irq/121-eno122:08:331
12008399151,6cyclictest322147-21/usr/sbin/munin21:58:291
12008399151,5cyclictest418075-21cat23:14:561
120083991512,2cyclictest424989-21cpuspeed_turbos23:23:341
120083991512,2cyclictest424123-21awk23:20:001
120083991512,2cyclictest281079-21kthreadcore21:23:371
120083991512,2cyclictest187448-21kthreadcore20:03:391
120083991512,2cyclictest140421-21sh19:25:001
120083991511,3cyclictest409911-21kthreadcore23:08:381
120083991511,3cyclictest366541-21kthreadcore22:33:361
120083991511,3cyclictest297899-21aten_repower_fr21:38:311
120083991511,3cyclictest257-21systemd-journal00:30:011
120082991512,2cyclictest463833-21kthreadcore23:53:360
120082991512,2cyclictest323476-21kthreadcore21:58:350
120082991512,2cyclictest222374-21kthreadcore20:33:370
120082991511,3cyclictest130138-21kthreadcore19:18:370
120084991412,1cyclictest0-21swapper/223:03:392
120084991412,1cyclictest0-21swapper/221:45:022
120084991412,1cyclictest0-21swapper/220:56:302
120084991412,1cyclictest0-21swapper/220:56:302
120084991411,1cyclictest0-21swapper/223:25:012
120084991411,1cyclictest0-21swapper/220:23:362
120084991411,1cyclictest0-21swapper/220:08:352
120084991411,1cyclictest0-21swapper/219:38:422
120084991411,1cyclictest0-21swapper/200:25:002
120084991411,1cyclictest0-21swapper/200:18:292
12008499140,2cyclictest0-21swapper/219:16:142
12008499140,12cyclictest454470-21taskset23:44:592
12008499140,12cyclictest448204-21chrt23:39:582
12008499140,12cyclictest327913-21chrt22:00:032
12008499140,11cyclictest5150252sleep200:35:042
12008499140,11cyclictest5090162chrt00:30:032
12008499140,11cyclictest351630-21chrt22:19:592
12008499140,11cyclictest2851772chrt21:24:572
12008499140,11cyclictest2430862chrt20:49:582
12008499140,11cyclictest219327-21taskset20:30:032
12008399149,1cyclictest134050irq/121-eno120:53:291
12008399148,2cyclictest134050irq/121-eno122:38:311
12008399148,2cyclictest134050irq/121-eno121:28:311
12008399147,5cyclictest1290-21dbus-daemon23:50:021
12008399144,2cyclictest17350irq/127-ahci[0000:00:17.0]19:29:551
12008399144,2cyclictest134050irq/121-eno119:43:331
12008399141,2cyclictest472550-21latency_hist00:00:011
120083991412,1cyclictest0-21swapper/122:05:011
120083991411,2cyclictest491415-21aten_repower_vo00:18:321
120083991411,2cyclictest474060-21tr00:03:361
120083991411,2cyclictest310118-21/usr/sbin/munin21:48:411
120083991411,2cyclictest297063-21unixbench_singl21:33:431
120083991411,2cyclictest213195-21sh20:25:011
120083991411,2cyclictest194474-21mailstats20:08:431
120083991411,2cyclictest0-21swapper/100:15:001
120083991410,3cyclictest257027-21kthreadcore21:03:381
120083991410,3cyclictest202704-21irqrtprio20:18:371
120083991410,3cyclictest127633-21kthreadcore19:15:031
120083991410,3cyclictest123347-21kthreadcore19:13:351
2649091133,2phc2sys0-21swapper/321:13:413
2649091130,2phc2sys0-21swapper/323:50:053
2649091130,2phc2sys0-21swapper/321:30:313
12008499139,2cyclictest0-21swapper/221:08:572
12008499131,9cyclictest370260-21chrt22:35:022
120084991310,1cyclictest0-21swapper/222:40:012
120084991310,1cyclictest0-21swapper/222:08:392
120084991310,1cyclictest0-21swapper/221:53:302
120084991310,1cyclictest0-21swapper/221:03:372
120084991310,1cyclictest0-21swapper/220:03:342
120084991310,1cyclictest0-21swapper/219:23:392
12008499130,11cyclictest164646-21chrt19:44:592
12008499130,10cyclictest478640-21chrt00:04:582
12008499130,10cyclictest351963-21taskset22:20:032
12008399139,3cyclictest348735-21kthreadcore22:18:361
12008399139,3cyclictest342766-21kthreadcore22:13:371
12008399136,3cyclictest134050irq/121-eno121:13:321
12008399136,3cyclictest134050irq/121-eno120:13:321
12008399135,3cyclictest134050irq/121-eno122:43:381
12008399135,3cyclictest134050irq/121-eno120:33:381
12008399135,3cyclictest134050irq/121-eno100:33:361
12008399134,2cyclictest134050irq/121-eno123:28:351
12008399134,2cyclictest134050irq/121-eno121:05:291
120083991310,2cyclictest401757-21irqrtprio23:03:361
120083991310,2cyclictest360339-21kthreadcore22:28:371
120083991310,2cyclictest255146-21sendmail21:00:001
120083991310,2cyclictest255146-21sendmail21:00:001
120083991310,2cyclictest1288-1atopacctd00:23:371
2649091120,2phc2sys0-21swapper/321:53:283
2649091120,1phc2sys0-21swapper/319:10:113
120084991210,1cyclictest0-21swapper/223:18:392
120084991210,1cyclictest0-21swapper/222:13:372
120084991210,1cyclictest0-21swapper/220:53:372
12008499120,10cyclictest219013-21taskset20:29:592
12008399129,2cyclictest147318-21head19:33:311
12008399127,3cyclictest0-21swapper/119:48:301
12008399125,3cyclictest134050irq/121-eno119:10:021
12008299121,3cyclictest119913-21latency_hist19:10:020
2649091111,1phc2sys0-21swapper/323:24:333
2649091110,2phc2sys0-21swapper/321:38:303
2649091110,2phc2sys0-21swapper/321:16:463
2649091110,2phc2sys0-21swapper/320:18:313
2649091110,2phc2sys0-21swapper/300:33:303
2649091110,1phc2sys0-21swapper/322:59:053
2649091110,1phc2sys0-21swapper/322:51:563
2649091110,1phc2sys0-21swapper/321:24:353
2649091110,1phc2sys0-21swapper/319:18:283
2649091102,2phc2sys0-21swapper/320:38:353
2649091101,2phc2sys0-21swapper/322:43:303
2649091101,2phc2sys0-21swapper/320:59:563
2649091101,2phc2sys0-21swapper/320:59:563
2649091101,2phc2sys0-21swapper/319:48:303
2649091101,2phc2sys0-21swapper/300:30:013
2649091100,2phc2sys0-21swapper/323:04:563
2649091100,2phc2sys0-21swapper/321:08:473
2649091100,2phc2sys0-21swapper/321:03:313
2649091100,2phc2sys0-21swapper/320:33:383
2649091100,1phc2sys0-21swapper/322:25:193
2649091100,1phc2sys0-21swapper/322:19:143
2649091100,1phc2sys0-21swapper/322:15:013
2649091100,1phc2sys0-21swapper/300:13:183
2649091100,1phc2sys0-21swapper/300:08:053
264909191,3phc2sys0-21swapper/323:33:303
264909191,3phc2sys0-21swapper/322:23:383
264909191,2phc2sys0-21swapper/323:10:023
264909191,2phc2sys0-21swapper/322:38:373
264909191,2phc2sys0-21swapper/322:03:343
264909191,2phc2sys0-21swapper/321:28:203
264909191,2phc2sys0-21swapper/319:30:023
264909191,2phc2sys0-21swapper/319:23:373
264909191,1phc2sys0-21swapper/320:03:333
264909190,2phc2sys0-21swapper/323:45:013
264909190,2phc2sys0-21swapper/323:38:443
264909190,2phc2sys0-21swapper/323:29:383
264909190,2phc2sys0-21swapper/322:33:323
264909190,2phc2sys0-21swapper/322:00:013
264909190,2phc2sys0-21swapper/320:48:123
264909190,2phc2sys0-21swapper/320:43:403
264909190,2phc2sys0-21swapper/319:53:393
264909190,2phc2sys0-21swapper/319:38:403
264909190,2phc2sys0-21swapper/319:06:013
264909190,2phc2sys0-21swapper/300:18:313
264909190,1phc2sys0-21swapper/323:45:053
264909190,1phc2sys0-21swapper/321:45:183
264909190,1phc2sys0-21swapper/320:07:293
1200849991,4cyclictest0-21swapper/219:10:012
264909181,2phc2sys0-21swapper/323:55:073
264909181,2phc2sys0-21swapper/323:16:443
264909181,2phc2sys0-21swapper/320:54:303
264909181,1phc2sys0-21swapper/320:28:333
264909180,2phc2sys0-21swapper/323:13:313
264909180,2phc2sys0-21swapper/322:46:033
264909180,2phc2sys0-21swapper/320:23:323
264909180,2phc2sys0-21swapper/319:43:373
264909180,2phc2sys0-21swapper/319:33:313
264909180,2phc2sys0-21swapper/300:03:403
264909180,1phc2sys0-21swapper/322:06:183
264909180,1phc2sys0-21swapper/319:56:553
264909180,1phc2sys0-21swapper/300:35:223
264909180,1phc2sys0-21swapper/300:23:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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