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2026-04-29 - 16:02
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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 Wed Apr 29, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226202921000,2sleep20-21swapper/212:30:392
199860221000,2sleep30-21swapper/309:35:393
1802234993012,13cyclictest0-21swapper/012:40:000
1802234993012,12cyclictest0-21swapper/009:50:010
1802234992919,9cyclictest3827634-1atopacctd07:25:010
1802234992919,9cyclictest1290-21dbus-daemon12:15:020
180223499289,6cyclictest0-21swapper/012:05:360
1802234992717,9cyclictest1-21systemd09:35:020
1802234992714,11cyclictest2210407-21sshd11:56:230
1802234992616,8cyclictest0-21swapper/010:10:010
180223499257,6cyclictest0-21swapper/009:15:290
1802234992515,6cyclictest2141366-21kthreadcore11:10:370
1802234992414,9cyclictest2091046-21/usr/sbin/munin10:40:000
1802234992414,9cyclictest2066592-21wc10:20:410
1802234992413,2cyclictest1802232-21cyclictest08:00:320
1802235992317,2cyclictest134050irq/121-eno111:10:001
180223499236,6cyclictest0-21swapper/011:35:440
1802234992314,8cyclictest2038399-21systemd-run10:05:020
1802235992219,2cyclictest2256745-21awk12:30:001
1802235992219,2cyclictest2068622-21grep10:25:011
1802235992219,2cyclictest2015812-21grep09:50:011
1802235992216,2cyclictest134050irq/121-eno111:55:351
180223499223,7cyclictest0-21swapper/009:25:300
1802234992212,9cyclictest2077800-21kthreadcore10:30:370
1802234992212,2cyclictest3851875-21systemd-journal08:55:000
1802234992212,2cyclictest2149576-21ptp4l11:15:410
1802234992212,2cyclictest2122728-21irqrtprio11:00:340
1802234992212,2cyclictest1994412-21hddtemp_smartct09:35:330
1802234992211,2cyclictest2192700-21kthreadcore11:45:370
1802236992118,1cyclictest0-21swapper/210:00:012
1802236992118,1cyclictest0-21swapper/208:00:012
1802235992118,2cyclictest0-21swapper/108:00:001
1802235992113,3cyclictest2040867-21kthreadcore10:05:381
180223499218,5cyclictest3824567-21rs:main0
180223499215,5cyclictest0-21swapper/010:46:230
180223499215,4cyclictest0-21swapper/010:17:090
1802234992112,1cyclictest0-21swapper/009:05:000
1802234992111,2cyclictest2132807-21kthreadcore11:05:380
1802234992110,6cyclictest0-21swapper/011:45:000
1802234992110,3cyclictest2198044-21irqcore11:50:350
1802236992017,1cyclictest0-21swapper/211:00:002
1802236992017,1cyclictest0-21swapper/207:15:012
1802235992017,2cyclictest1892599-21sendmail08:20:001
1802235992017,2cyclictest0-21swapper/111:40:011
1802234992011,2cyclictest2114305-21cpuspeed10:55:310
1802234992010,2cyclictest2113855-21systemd10:55:020
1802234992010,2cyclictest2071855-21kthreadcore10:25:370
180223499200,8cyclictest2213765-21cut12:00:350
1802236991917,1cyclictest0-21swapper/210:10:012
1802236991916,1cyclictest0-21swapper/211:30:002
1802235991916,2cyclictest2128674-21awk11:05:011
180223499198,6cyclictest0-21swapper/011:30:280
1802234991911,2cyclictest2024383-21sed09:55:350
180223499190,12cyclictest2247543-21timerandwakeup12:20:440
2649091181,2phc2sys0-21swapper/312:32:563
2649091180,2phc2sys0-21swapper/310:55:333
1802236991815,1cyclictest0-21swapper/212:25:012
1802236991815,1cyclictest0-21swapper/210:40:012
1802236991815,1cyclictest0-21swapper/209:10:012
1802236991814,2cyclictest0-21swapper/211:05:382
1802236991814,2cyclictest0-21swapper/208:40:012
1802236991814,1cyclictest0-21swapper/208:25:452
1802235991815,2cyclictest2098560-21cat10:45:001
1802235991815,2cyclictest2081531-21grep10:30:401
1802235991814,3cyclictest3880722-21gmain07:35:021
1802235991813,4cyclictest3851703-21mta-sts-daemon12:09:191
180223499185,1cyclictest191rcu_preempt07:30:290
1802234991815,2cyclictest2152921-21cut11:20:340
1802234991815,2cyclictest1898861-21latency_hist08:25:000
1802234991812,1cyclictest3851704-21mta-sts-daemon07:45:390
1802234991810,7cyclictest2016259-21aten_repower_po09:50:310
1802234991810,2cyclictest1862212-21idleruntime07:55:350
2649191170,2ptp4l0-21swapper/311:10:373
2649091170,2phc2sys0-21swapper/312:38:183
2649091170,2phc2sys0-21swapper/309:11:263
1802236991715,1cyclictest0-21swapper/211:45:022
1802236991714,1cyclictest0-21swapper/212:00:402
1802236991714,1cyclictest0-21swapper/211:55:002
1802236991714,1cyclictest0-21swapper/209:15:312
1802236991714,1cyclictest0-21swapper/208:15:012
1802236991713,2cyclictest0-21swapper/212:25:322
1802236991713,2cyclictest0-21swapper/209:05:022
1802236991711,2cyclictest0-21swapper/211:20:002
180223599179,3cyclictest0-21swapper/111:10:291
1802235991714,2cyclictest3851705-21mta-sts-daemon09:15:431
1802235991714,2cyclictest2154835-21kthreadcore11:20:371
1802235991714,2cyclictest1987056-21grep09:30:361
1802235991714,2cyclictest1911547-21systemd-run08:35:011
1802235991713,3cyclictest3851875-21systemd-journal10:30:001
1802235991710,3cyclictest3851705-21mta-sts-daemon07:10:411
180223499171,11cyclictest0-21swapper/010:40:380
1802234991710,2cyclictest3851705-21mta-sts-daemon09:10:170
2649091160,2phc2sys0-21swapper/311:40:053
2649091160,2phc2sys0-21swapper/311:02:533
2649091160,2phc2sys0-21swapper/309:32:073
1802236991614,1cyclictest0-21swapper/210:25:012
1802236991613,1cyclictest0-21swapper/211:30:402
1802236991613,1cyclictest0-21swapper/211:15:002
1802236991613,1cyclictest0-21swapper/210:20:002
1802236991613,1cyclictest0-21swapper/209:40:412
1802236991613,1cyclictest0-21swapper/209:40:412
1802236991613,1cyclictest0-21swapper/209:30:352
1802236991613,1cyclictest0-21swapper/208:15:362
1802236991612,3cyclictest0-21swapper/211:58:192
1802236991611,3cyclictest1894729-21taskset08:20:352
180223599162,4cyclictest3834332-21rtkit-daemon12:37:041
1802235991613,2cyclictest3851702-21mta-sts-daemon10:59:281
1802235991613,2cyclictest3827634-1atopacctd10:10:371
1802235991613,2cyclictest3827634-1atopacctd09:56:231
1802235991613,2cyclictest2229910-21kthreadcore12:10:371
1802235991613,2cyclictest1924230-21systemd-run08:45:001
1802235991613,2cyclictest1899007-21systemd-run08:25:011
1802235991613,2cyclictest1860197-21grep07:50:391
1802235991613,2cyclictest1854865-21munin-plugin-st07:50:001
1802235991613,2cyclictest0-21swapper/111:55:001
1802235991612,3cyclictest3880722-21gmain08:15:001
1802235991612,3cyclictest2165772-21kworker/u16:0+nfsiod12:01:141
1802234991613,2cyclictest1930579-21systemd08:50:010
1802234991613,2cyclictest1812123-21gltestperf07:15:340
1802234991613,2cyclictest0-21swapper/007:55:010
1802234991612,3cyclictest3827634-1atopacctd09:40:370
1802234991612,3cyclictest3827634-1atopacctd09:40:370
1802234991612,3cyclictest1963058-21kworker/u16:0+nfsiod09:21:460
180223499161,13cyclictest1886357-21awk08:15:000
383433398150,5rtkit-daemon3851704-21mta-sts-daemon08:25:450
2649091151,1phc2sys0-21swapper/311:23:343
2649091150,4phc2sys0-21swapper/312:15:293
2649091150,3phc2sys0-21swapper/310:12:513
2649091150,2phc2sys0-21swapper/312:26:393
1802236991513,1cyclictest0-21swapper/211:35:382
1802236991512,1cyclictest0-21swapper/211:23:212
1802236991512,1cyclictest0-21swapper/210:34:112
1802236991512,1cyclictest0-21swapper/210:00:422
1802236991512,1cyclictest0-21swapper/209:30:012
1802236991512,1cyclictest0-21swapper/208:55:002
1802236991512,1cyclictest0-21swapper/208:45:422
1802236991512,1cyclictest0-21swapper/208:05:012
1802236991512,1cyclictest0-21swapper/207:30:012
1802236991512,1cyclictest0-21swapper/207:15:332
1802236991511,2cyclictest0-21swapper/212:15:122
1802236991511,2cyclictest0-21swapper/212:10:022
1802236991511,2cyclictest0-21swapper/207:50:022
180223699150,13cyclictest0-21swapper/207:40:002
180223599159,2cyclictest3851705-21mta-sts-daemon10:18:261
180223599159,2cyclictest134050irq/121-eno110:02:071
180223599155,8cyclictest1845697-21tr07:40:381
1802235991513,1cyclictest1802232-21cyclictest09:00:321
1802235991512,2cyclictest3851704-21mta-sts-daemon07:26:111
1802235991512,2cyclictest2184605-21kthreadcore11:40:361
1802235991512,2cyclictest2167463-21cstates11:30:301
1802235991512,2cyclictest2166500-21sh11:30:001
1802235991512,2cyclictest2021093-21missed_timers09:50:401
1802235991512,2cyclictest1998692-21grep09:35:401
1802235991512,2cyclictest1942845-21sh09:00:001
1802235991512,2cyclictest1802232-21cyclictest09:44:381
1802235991512,2cyclictest1802232-21cyclictest09:44:381
1802235991512,2cyclictest134050irq/121-eno112:23:061
1802235991512,2cyclictest0-21swapper/110:55:021
1802235991511,3cyclictest3827634-1atopacctd10:35:371
1802235991510,4cyclictest1802232-21cyclictest09:21:191
1802234991512,2cyclictest3851702-21mta-sts-daemon08:15:320
1802234991512,2cyclictest2237983-21kthreadcore12:15:370
1802234991512,2cyclictest1943117-21systemd-run09:00:030
1802234991512,2cyclictest1924219-21munin-plugin-st08:45:010
1802234991512,1cyclictest0-21swapper/011:30:010
2649091140,3phc2sys0-21swapper/308:00:343
2649091140,2phc2sys0-21swapper/312:20:303
2649091140,2phc2sys0-21swapper/312:10:413
2649091140,2phc2sys0-21swapper/312:00:343
2649091140,1phc2sys0-21swapper/310:48:073
1802236991412,1cyclictest0-21swapper/212:10:432
1802236991412,1cyclictest0-21swapper/210:50:022
1802236991411,1cyclictest0-21swapper/211:00:352
1802236991411,1cyclictest0-21swapper/209:55:012
1802236991411,1cyclictest0-21swapper/209:45:342
1802236991411,1cyclictest0-21swapper/208:55:382
180223699140,12cyclictest0-21swapper/209:23:202
180223599146,3cyclictest0-21swapper/109:10:341
180223599142,3cyclictest2234603-21apt-get12:15:291
1802235991411,2cyclictest3851704-21mta-sts-daemon08:00:111
1802235991411,2cyclictest3827634-1atopacctd09:09:231
1802235991411,2cyclictest2264304-21latency_hist12:35:011
1802235991411,2cyclictest2104553-21unixbench-2d10:45:431
1802235991411,2cyclictest1983823-21processes09:25:411
1802235991411,2cyclictest1932031-21kthreadcore08:50:361
1802235991411,2cyclictest1816374-21phc2sys-jitter07:15:401
1802235991411,2cyclictest1802338-21latency_hist07:10:011
1802235991411,2cyclictest0-21swapper/108:40:021
1802235991410,3cyclictest2145743-21kthreadcore11:15:371
1802235991410,3cyclictest1822807-21sendmail_mailqu07:20:401
180223499143,6cyclictest2249751-21aten2.4-expect12:25:320
180223499141,7cyclictest1836438-21aten2.4-expect07:35:270
1802234991412,1cyclictest3851703-21mta-sts-daemon12:30:260
1802234991411,2cyclictest3851705-21mta-sts-daemon07:27:180
1802234991411,2cyclictest2046814-21gltestperf10:10:340
1802234991411,2cyclictest1875535-21kthreadcore08:05:380
1802234991411,2cyclictest0-21swapper/007:15:000
1802234991410,3cyclictest1951369-21kthreadcore09:05:360
1802234991410,3cyclictest1843854-21irqrtprio07:40:360
2649091131,3phc2sys0-21swapper/308:05:313
2649091131,2phc2sys0-21swapper/310:05:313
2649091130,5phc2sys0-21swapper/310:00:053
2649091130,4phc2sys0-21swapper/309:40:073
2649091130,4phc2sys0-21swapper/309:40:073
2649091130,2phc2sys0-21swapper/310:27:393
2649091130,2phc2sys0-21swapper/310:19:423
2649091130,2phc2sys0-21swapper/310:00:023
2649091130,2phc2sys0-21swapper/309:49:493
2649091130,2phc2sys0-21swapper/309:04:323
2649091130,2phc2sys0-21swapper/307:33:563
2649091130,1phc2sys0-21swapper/309:07:423
18991952131,2sleep30-21swapper/308:25:303
1802236991311,1cyclictest0-21swapper/210:51:442
1802236991311,1cyclictest0-21swapper/210:40:332
1802236991311,1cyclictest0-21swapper/210:27:392
1802236991311,1cyclictest0-21swapper/209:12:232
1802236991310,2cyclictest0-21swapper/210:11:222
1802236991310,2cyclictest0-21swapper/207:30:402
1802236991310,1cyclictest0-21swapper/211:47:012
1802236991310,1cyclictest0-21swapper/208:42:522
1802236991310,1cyclictest0-21swapper/208:30:352
1802236991310,1cyclictest0-21swapper/208:05:332
180223699130,9cyclictest0-21swapper/212:35:292
180223599139,3cyclictest1926232-21kthreadcore08:45:361
180223599139,3cyclictest1878523-21kthreadcore08:05:391
1802235991311,1cyclictest1899428-21cpu08:25:311
1802235991310,2cyclictest1837705-21kthreadcore07:35:341
1802235991310,2cyclictest0-21swapper/111:45:421
180223499138,3cyclictest3851875-21systemd-journal08:30:020
2649091123,2phc2sys0-21swapper/311:07:313
2649091121,1phc2sys0-21swapper/309:26:303
2649091120,4phc2sys0-21swapper/308:40:293
2649091120,2phc2sys0-21swapper/311:36:063
2649091120,2phc2sys0-21swapper/311:28:573
2649091120,2phc2sys0-21swapper/309:51:193
2649091120,2phc2sys0-21swapper/309:17:163
2649091120,2phc2sys0-21swapper/307:36:573
2649091120,2phc2sys0-21swapper/307:17:423
2649091120,1phc2sys0-21swapper/311:18:173
2649091120,1phc2sys0-21swapper/310:38:573
2649091120,1phc2sys0-21swapper/308:37:283
2649091120,1phc2sys0-21swapper/307:42:263
19244672120,7sleep30-21swapper/308:45:303
180223699129,1cyclictest0-21swapper/207:20:342
1802236991210,1cyclictest0-21swapper/209:35:142
1802236991210,1cyclictest0-21swapper/207:40:312
2649091111,2phc2sys0-21swapper/310:40:383
2649091111,2phc2sys0-21swapper/308:15:003
2649091110,3phc2sys0-21swapper/308:24:363
2649091110,1phc2sys0-21swapper/309:21:133
21954422110,3sleep30-21swapper/311:46:273
180223699119,1cyclictest0-21swapper/207:50:322
180223499111,8cyclictest1802246-21munin-run07:10:010
2649091100,3phc2sys0-21swapper/312:09:553
2649091100,3phc2sys0-21swapper/310:54:563
2649091100,2phc2sys0-21swapper/311:50:203
2649091100,2phc2sys0-21swapper/311:30:283
2649091100,2phc2sys0-21swapper/310:30:403
2649091100,2phc2sys0-21swapper/310:20:343
2649091100,2phc2sys0-21swapper/307:55:373
180223699107,1cyclictest0-21swapper/207:10:002
264909193,2phc2sys0-21swapper/307:10:393
264909191,3phc2sys0-21swapper/307:05:323
264909191,2phc2sys0-21swapper/307:50:243
264909190,2phc2sys0-21swapper/311:55:293
264909190,2phc2sys0-21swapper/308:55:363
264909190,2phc2sys0-21swapper/308:54:553
264909190,2phc2sys0-21swapper/308:30:403
264909190,2phc2sys0-21swapper/308:15:363
264909190,2phc2sys0-21swapper/307:45:313
264909190,2phc2sys0-21swapper/307:25:313
264909180,2phc2sys0-21swapper/307:20:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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