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2026-08-01 - 19:42
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sat Aug 01, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190766421170,1sleep00-21swapper/009:55:550
20380432690,1sleep02038041-21ssh11:21:050
18546772610,1sleep01854675-21ssh09:20:120
17427272420,1sleep00-21swapper/007:50:480
20554082300,1sleep02055410-21gltestperf11:35:520
1691064992417,2cyclictest69250irq/121-eno111:20:021
1691065992320,1cyclictest0-21swapper/209:20:022
169106599231,14cyclictest0-21swapper/211:05:342
1691063992320,2cyclictest1979804-21cron10:45:010
1691065992220,1cyclictest0-21swapper/211:20:022
1691064992214,7cyclictest1942991-21idleruntime-cro10:20:001
1691063992213,5cyclictest2147006-21kthreadcore12:35:560
169106599211,9cyclictest0-21swapper/210:55:352
1691064992113,3cyclictest1895594-21kthreadcore09:45:551
1691063992118,2cyclictest1869063-21sh09:30:010
1691063992114,6cyclictest1852719-21timerandwakeup09:16:010
1157598210,4rtkit-daemon1307-21mta-sts-daemon09:43:450
1691065992018,1cyclictest0-21swapper/210:45:032
1691064992017,2cyclictest0-21swapper/109:40:011
1691064992014,1cyclictest1697093-21idleruntime-cro07:15:011
1691063992017,2cyclictest688-21in:imuxsock12:35:020
1157598200,3rtkit-daemon1300-21mta-sts-daemon09:06:500
169106599191,9cyclictest0-21swapper/212:20:012
1691065991917,1cyclictest0-21swapper/209:40:022
1691065991916,1cyclictest0-21swapper/212:10:022
1691065991916,1cyclictest0-21swapper/209:45:232
1691065991916,1cyclictest0-21swapper/208:15:012
1691064991916,2cyclictest1780197-21sort08:20:521
169106499191,4cyclictest2128448-21apt-get12:25:341
1691064991912,3cyclictest714-21gdbus09:45:021
1691064991912,3cyclictest1953563-21kthreadcore10:25:561
169106399198,6cyclictest0-21swapper/011:40:560
1691063991916,2cyclictest2046725-21ssh11:30:000
1691063991916,2cyclictest1-21systemd11:05:020
1691063991913,5cyclictest2106878-21sed12:10:530
1691063991910,5cyclictest2085441-21kthreadcore11:55:560
1157598190,4rtkit-daemon1053-21snmpd10:06:100
3240591181,3phc2sys0-21swapper/309:57:033
3240591180,2phc2sys0-21swapper/310:11:233
17737992184,4sleep30-21swapper/308:15:523
169106599182,8cyclictest0-21swapper/211:50:012
1691065991816,1cyclictest0-21swapper/207:15:022
1691065991815,1cyclictest0-21swapper/211:54:232
1691065991815,1cyclictest0-21swapper/210:15:012
1691065991815,1cyclictest0-21swapper/210:01:022
1691065991815,1cyclictest0-21swapper/209:55:022
1691064991815,2cyclictest2002045-21awk11:00:011
1691064991815,2cyclictest1869034-21turbostat.cron09:30:011
1691064991815,2cyclictest1778950-21sendmail08:20:001
1691064991814,3cyclictest2142761-21kworker/u16:3+nfsiod12:35:581
1691064991814,2cyclictest2024601-21cut11:15:031
1691064991814,2cyclictest0-21swapper/112:25:021
169106399187,6cyclictest0-21swapper/009:45:360
1691063991815,2cyclictest664-21dbus-daemon10:55:010
1691063991815,2cyclictest1957764-21systemd10:30:010
1691063991815,2cyclictest1702518-21kthreadcore07:15:550
1691063991815,2cyclictest0-21swapper/011:15:020
1691063991813,4cyclictest2026053-21irqrtprio11:15:530
1691063991813,4cyclictest1881450-21cut09:35:560
1691063991812,4cyclictest1-21systemd07:50:010
1157598180,3rtkit-daemon1300-21mta-sts-daemon12:19:321
3240591170,2phc2sys0-21swapper/310:46:133
3240591170,2phc2sys0-21swapper/309:41:413
3240591170,1phc2sys0-21swapper/310:58:083
169106599176,1cyclictest0-21swapper/210:49:192
169106599172,8cyclictest0-21swapper/208:10:012
1691065991715,1cyclictest0-21swapper/211:30:022
1691065991715,1cyclictest0-21swapper/209:30:032
1691065991715,1cyclictest0-21swapper/209:00:022
1691065991714,1cyclictest0-21swapper/211:40:022
1691065991714,1cyclictest0-21swapper/209:10:562
1691065991714,1cyclictest0-21swapper/207:40:582
1691065991714,1cyclictest0-21swapper/207:20:012
1691065991713,2cyclictest0-21swapper/210:30:012
1691065991713,2cyclictest0-21swapper/207:36:012
1691065991711,2cyclictest0-21swapper/211:40:332
169106599170,2cyclictest19364762sleep210:15:502
169106499179,3cyclictest1691061-21cyclictest11:45:021
1691064991714,2cyclictest759-1atopacctd09:01:011
1691064991714,2cyclictest2076165-21dump-pmu-power11:50:001
1691064991714,2cyclictest0-21swapper/109:25:011
1691064991713,3cyclictest1800336-21tr08:35:551
169106399177,4cyclictest1964500-21sshd10:33:230
169106399172,4cyclictest491rcuog/211:33:150
1691063991714,2cyclictest759-1atopacctd11:45:570
1691063991714,2cyclictest1972580-21systemd10:40:020
1691063991714,2cyclictest1906344-21systemd09:55:020
1691063991714,2cyclictest1803186-21munin-plugin-st08:40:010
1691063991714,2cyclictest1717948-21sh07:30:020
1691063991714,2cyclictest1309-21mta-sts-daemon12:29:560
1691063991713,3cyclictest1307-21mta-sts-daemon09:13:000
3240591160,3phc2sys0-21swapper/311:17:403
3240591160,3phc2sys0-21swapper/308:40:333
3240591160,2phc2sys0-21swapper/311:54:563
3240591160,2phc2sys0-21swapper/309:27:463
3240591160,2phc2sys0-21swapper/309:24:573
3240591160,1phc2sys0-21swapper/311:30:393
169106599169,3cyclictest0-21swapper/211:10:352
1691065991614,1cyclictest0-21swapper/211:35:002
1691065991614,1cyclictest0-21swapper/211:25:002
1691065991614,1cyclictest0-21swapper/210:30:562
1691065991614,1cyclictest0-21swapper/208:00:022
1691065991613,1cyclictest0-21swapper/209:00:552
1691065991613,1cyclictest0-21swapper/208:35:012
1691065991613,1cyclictest0-21swapper/207:30:442
1691065991613,1cyclictest0-21swapper/207:30:012
1691065991612,1cyclictest0-21swapper/208:50:332
1691065991611,2cyclictest0-21swapper/212:37:162
169106599160,7cyclictest0-21swapper/212:20:322
169106499168,3cyclictest0-21swapper/110:50:011
169106499166,5cyclictest1742256-21latency_hist07:50:011
1691064991613,2cyclictest2098224-21ls12:05:011
1691064991613,2cyclictest2077490-21gltestperf11:50:511
1691064991613,2cyclictest2041067-21irqrtprio11:25:531
1691064991613,2cyclictest1914926-21sed10:00:531
1691064991613,2cyclictest1840718-21sh09:10:501
1691064991613,2cyclictest1839731-21latency_hist09:10:021
1691064991613,2cyclictest1745354-21sed07:50:571
1691064991613,2cyclictest1309-21mta-sts-daemon09:53:281
1691064991613,2cyclictest0-21swapper/107:30:011
1691064991612,3cyclictest2111123-21ptp4l12:11:001
1691064991612,3cyclictest1928370-21kworker/u16:1+nfsiod11:55:201
1691064991612,3cyclictest1839554-21diskmemload09:30:501
1691064991612,3cyclictest1751414-21kthreadcore07:55:551
1691064991611,2cyclictest1300-21mta-sts-daemon12:09:271
1691064991610,2cyclictest1309-21mta-sts-daemon11:37:281
169106399168,2cyclictest0-21swapper/010:22:180
1691063991613,2cyclictest2128193-21/usr/sbin/munin12:25:030
1691063991613,2cyclictest1985125-21missed_timers10:45:570
1691063991613,2cyclictest1874371-21latency09:30:570
1691063991613,2cyclictest1772858-21sh08:15:020
1691063991613,2cyclictest1760635-21systemd08:05:030
1691063991613,2cyclictest1309-21mta-sts-daemon08:30:570
1691063991613,2cyclictest0-21swapper/012:20:030
1691063991612,3cyclictest2002502-21kworker/u16:0+nfsiod12:07:500
1691063991612,2cyclictest1785190-21systemd08:25:020
1691063991611,1cyclictest17750irq/127-ahci[0000:00:17.0]10:05:020
1691063991610,5cyclictest1307-21mta-sts-daemon09:00:540
1157598160,2rtkit-daemon1300-21mta-sts-daemon08:29:370
1691065991513,1cyclictest0-21swapper/211:55:552
1691065991513,1cyclictest0-21swapper/209:35:032
1691065991513,1cyclictest0-21swapper/209:10:012
1691065991512,1cyclictest0-21swapper/212:25:542
1691065991512,1cyclictest0-21swapper/212:00:572
1691065991512,1cyclictest0-21swapper/210:53:052
1691065991512,1cyclictest0-21swapper/209:55:492
1691065991512,1cyclictest0-21swapper/209:24:212
1691065991512,1cyclictest0-21swapper/207:47:362
1691065991511,2cyclictest0-21swapper/207:20:532
1691064991512,2cyclictest664-21dbus-daemon10:00:011
1691064991512,2cyclictest664-21dbus-daemon08:15:031
1691064991512,2cyclictest2035624-21kthreadcore11:20:551
1691064991512,2cyclictest1990037-21kthreadcore10:50:571
1691064991512,2cyclictest1977693-21latency10:40:571
1691064991512,2cyclictest1785899-21sh08:25:511
1691064991512,2cyclictest1765677-21proc_pri08:05:591
1691064991512,2cyclictest1759547-21pmu-power08:01:001
1691064991512,2cyclictest1691122-21systemd-run07:10:011
1691064991512,2cyclictest0-21swapper/112:35:021
1691064991511,3cyclictest1962743-21kthreadcore10:30:561
1691064991511,3cyclictest1727333-21kthreadcore07:35:561
1691064991510,2cyclictest676-21mta-sts-daemon10:08:271
169106499150,4cyclictest1935652-21cron10:15:001
169106399157,2cyclictest0-21swapper/011:05:400
169106399156,8cyclictest1751860-21tr07:55:540
169106399156,5cyclictest0-21swapper/008:07:270
169106399154,6cyclictest0-21swapper/007:41:230
169106399153,4cyclictest1306-21mta-sts-daemon07:38:430
1691063991512,2cyclictest2083549-21sh11:55:010
1691063991512,2cyclictest1929229-21tr10:10:520
1691063991512,2cyclictest1719347-21irqrtprio07:30:550
1691063991512,2cyclictest1706592-21cut07:20:510
1691063991512,2cyclictest1694149-21kthreadcore07:10:560
1157598150,7rtkit-daemon1306-21mta-sts-daemon08:42:390
3240591141,6phc2sys0-21swapper/307:50:343
3240591140,3phc2sys0-21swapper/311:05:343
3240591140,3phc2sys0-21swapper/310:09:003
3240591140,2phc2sys0-21swapper/312:39:533
3240591140,2phc2sys0-21swapper/312:15:303
169106599149,3cyclictest0-21swapper/208:25:022
169106599141,6cyclictest0-21swapper/208:40:342
1691065991412,1cyclictest0-21swapper/208:30:022
1691065991412,1cyclictest0-21swapper/208:02:232
1691065991411,1cyclictest0-21swapper/211:00:582
1691065991411,1cyclictest0-21swapper/210:36:032
1691065991411,1cyclictest0-21swapper/208:35:582
1691065991411,1cyclictest0-21swapper/208:15:542
1691065991411,1cyclictest0-21swapper/207:50:512
1691065991410,1cyclictest0-21swapper/209:40:322
169106499144,5cyclictest1724133-21cat07:35:021
1691064991412,1cyclictest1307-21mta-sts-daemon07:40:031
1691064991411,2cyclictest759-1atopacctd08:40:401
1691064991411,2cyclictest2048458-21grep11:30:541
1691064991411,2cyclictest2011388-21irqrtprio11:05:551
1691064991411,2cyclictest1820682-21mailstats08:50:591
1691064991410,4cyclictest1691061-21cyclictest10:20:581
1691064991410,3cyclictest2004151-21kthreadcore11:00:541
1691064991410,3cyclictest1968488-21kthreadcore10:35:591
1691064991410,3cyclictest1796034-21latency08:30:581
1691064991410,3cyclictest1707150-21kthreadcore07:20:541
169106399145,4cyclictest2092137-21fschecks_time12:00:510
1691063991412,1cyclictest1691174-21cut07:10:020
1691063991411,2cyclictest1940914-21latency10:15:560
1691063991411,2cyclictest1820296-21latency08:50:560
1691063991411,2cyclictest1815349-21systemd08:50:010
1691063991411,2cyclictest1773459-21cpuspeed_turbos08:15:500
1691063991410,3cyclictest1648111-21kworker/u16:2+nfsiod10:55:490
3240591135,2phc2sys0-21swapper/312:30:033
3240591134,2phc2sys0-21swapper/311:10:553
3240591131,3phc2sys0-21swapper/307:10:333
3240591131,2phc2sys0-21swapper/308:35:333
3240591130,4phc2sys0-21swapper/310:20:213
3240591130,3phc2sys0-21swapper/312:22:393
3240591130,3phc2sys0-21swapper/311:40:333
3240591130,2phc2sys0-21swapper/312:10:353
3240591130,2phc2sys0-21swapper/311:49:593
3240591130,2phc2sys0-21swapper/311:02:303
3240591130,2phc2sys0-21swapper/310:01:133
3240591130,2phc2sys0-21swapper/307:37:093
1691065991311,1cyclictest0-21swapper/210:20:442
1691065991311,1cyclictest0-21swapper/210:05:522
1691065991310,2cyclictest0-21swapper/212:32:562
1691065991310,1cyclictest0-21swapper/212:10:552
169106499139,3cyclictest1811527-21kthreadcore08:45:541
1691064991310,2cyclictest1848302-21head09:15:521
1691064991310,2cyclictest1699499-21timerandwakeup07:15:041
1691064991310,2cyclictest1309-21mta-sts-daemon08:55:351
1691063991310,2cyclictest1822548-21if_enp1s008:55:540
3240591122,2phc2sys0-21swapper/309:32:593
3240591121,3phc2sys0-21swapper/308:30:353
3240591120,2phc2sys0-21swapper/311:20:333
3240591120,2phc2sys0-21swapper/310:51:273
3240591120,2phc2sys0-21swapper/309:38:243
20465342120,4sleep30-21swapper/311:29:223
1691065991210,1cyclictest0-21swapper/208:45:532
1691065991210,1cyclictest0-21swapper/207:10:022
3240591114,2phc2sys0-21swapper/308:21:013
3240591112,2phc2sys0-21swapper/311:55:523
3240591111,2phc2sys0-21swapper/312:05:023
3240591110,4phc2sys0-21swapper/307:05:323
3240591110,3phc2sys0-21swapper/310:30:513
3240591110,2phc2sys0-21swapper/312:25:343
3240591110,2phc2sys0-21swapper/307:48:553
3240591110,1phc2sys0-21swapper/312:08:433
3240591110,1phc2sys0-21swapper/310:40:283
3240591110,1phc2sys0-21swapper/308:29:003
3240591110,1phc2sys0-21swapper/307:32:203
3240591105,2phc2sys0-21swapper/309:10:563
3240591103,2phc2sys0-21swapper/309:50:503
3240591101,2phc2sys0-21swapper/311:35:523
3240591101,2phc2sys0-21swapper/310:28:303
3240591101,2phc2sys0-21swapper/309:00:533
3240591101,2phc2sys0-21swapper/308:06:023
3240591101,2phc2sys0-21swapper/308:00:543
3240591101,2phc2sys0-21swapper/307:55:533
3240591100,2phc2sys0-21swapper/310:35:523
3240591100,2phc2sys0-21swapper/310:15:323
3240591100,2phc2sys0-21swapper/309:45:263
3240591100,2phc2sys0-21swapper/309:16:203
3240591100,2phc2sys0-21swapper/309:05:543
324059191,2phc2sys0-21swapper/307:15:543
324059190,3phc2sys0-21swapper/307:45:023
324059190,2phc2sys0-21swapper/308:55:563
324059190,2phc2sys0-21swapper/308:45:553
324059190,2phc2sys0-21swapper/308:10:343
324059190,2phc2sys0-21swapper/307:25:553
324059181,3phc2sys0-21swapper/307:20:333
324059180,1phc2sys0-21swapper/308:50:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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