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2025-12-19 - 05:47
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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 Fri Dec 19, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19758582270,2sleep00-21swapper/020:20:010
1888673992320,2cyclictest2168684-21cron23:00:011
1888670992219,2cyclictest1894817-21apt-key19:15:010
188867099220,17cyclictest2030026-21kworker/0:1+events21:58:360
1888676991917,1cyclictest0-21swapper/223:40:002
1888673991916,2cyclictest1888858-21grep19:10:021
1888673991916,2cyclictest1326-21systemd-logind20:35:011
1888673991916,2cyclictest0-21swapper/119:15:011
1888673991915,3cyclictest1288-1atopacctd19:30:011
1888670991916,2cyclictest2162840-21systemctl22:55:010
1888676991815,1cyclictest0-21swapper/221:45:002
1888673991815,2cyclictest0-21swapper/123:10:011
1888673991814,3cyclictest2266031-21sshd00:21:181
188867099183,11cyclictest0-21swapper/022:36:270
1888670991815,2cyclictest1999833-21ls20:40:010
1888670991815,2cyclictest1951583-21munin-plugin-st20:00:010
1888676991714,1cyclictest0-21swapper/222:33:382
1888673991714,2cyclictest2199132-21munin-run23:25:001
1888673991713,3cyclictest1907421-21kthreadcore19:23:341
1888673991711,5cyclictest2055320-21cstates21:28:321
1888670991715,1cyclictest0-21swapper/019:30:010
1888670991714,2cyclictest2084457-21cron21:50:000
1888670991714,2cyclictest1888676-21cyclictest19:10:010
1888670991714,2cyclictest1290-21dbus-daemon22:10:010
1888670991714,2cyclictest1286-21avahi-daemon23:50:010
188867099170,13cyclictest0-21swapper/022:48:300
2649091160,2phc2sys0-21swapper/319:15:043
1888676991613,1cyclictest0-21swapper/219:45:012
1888676991613,1cyclictest0-21swapper/219:33:382
1888676991613,1cyclictest0-21swapper/219:15:012
188867399168,3cyclictest501rcuop/222:48:071
188867399168,3cyclictest501rcuop/200:12:391
188867399167,4cyclictest1290-21dbus-daemon21:40:011
188867399167,3cyclictest501rcuop/222:09:081
188867399167,3cyclictest501rcuop/221:02:001
1888673991613,2cyclictest2275671-21kthreadcore00:28:361
1888673991613,2cyclictest2265732-21systemd-run00:20:011
1888673991613,2cyclictest2212880-21cut23:38:361
1888673991613,2cyclictest2093363-21kthreadcore21:58:361
1888673991613,2cyclictest1978328-21kthreadcore20:23:371
1888673991613,2cyclictest1888663-21cyclictest19:33:291
1888673991612,3cyclictest1888663-21cyclictest21:33:341
1888673991612,3cyclictest1288-1atopacctd20:03:371
188867099164,6cyclictest2085185-21aten2.4-expect21:53:300
1888670991614,1cyclictest2066489-21latency_hist21:35:010
1888670991613,2cyclictest2138123-21mailstats22:33:420
1888670991613,2cyclictest2114763-21cut22:15:020
1888670991613,2cyclictest2055865-21cut21:28:350
1888670991613,2cyclictest1945571-21systemd19:55:010
1888670991613,2cyclictest1286-21avahi-daemon20:05:010
1888670991613,2cyclictest0-21swapper/000:13:340
2649091150,1phc2sys0-21swapper/319:43:353
1888676991513,1cyclictest0-21swapper/223:43:362
1888676991513,1cyclictest0-21swapper/220:43:422
1888676991513,1cyclictest0-21swapper/200:05:012
1888676991512,1cyclictest0-21swapper/223:25:002
1888676991512,1cyclictest0-21swapper/223:20:012
1888676991512,1cyclictest0-21swapper/222:20:012
1888676991512,1cyclictest0-21swapper/222:08:382
1888676991512,1cyclictest0-21swapper/221:53:332
188867399157,3cyclictest501rcuop/223:26:101
188867399157,3cyclictest501rcuop/223:16:121
188867399157,3cyclictest501rcuop/223:11:081
188867399157,3cyclictest501rcuop/222:51:321
188867399157,3cyclictest501rcuop/222:40:221
188867399157,3cyclictest501rcuop/222:37:251
188867399157,3cyclictest501rcuop/222:33:291
188867399157,3cyclictest501rcuop/222:25:591
188867399157,3cyclictest501rcuop/222:13:051
188867399157,3cyclictest501rcuop/221:53:011
188867399157,3cyclictest501rcuop/221:07:051
188867399157,3cyclictest501rcuop/220:55:271
188867399157,3cyclictest501rcuop/220:50:421
188867399157,3cyclictest501rcuop/220:49:051
188867399157,3cyclictest501rcuop/220:29:581
188867399157,3cyclictest501rcuop/219:53:511
188867399157,3cyclictest501rcuop/219:41:291
188867399157,3cyclictest501rcuop/200:37:471
188867399157,3cyclictest501rcuop/200:30:221
188867399156,4cyclictest1934126-21aten_repower_en19:48:301
188867399156,3cyclictest501rcuop/222:20:501
1888673991513,1cyclictest2205892-21aten2.4-expect23:33:301
1888673991512,2cyclictest2228743-21mailstats23:48:401
1888673991512,2cyclictest2045189-21kthreadcore21:18:361
1888673991512,2cyclictest1973009-21kthreadcore20:18:381
1888673991512,2cyclictest1946092-21/usr/sbin/munin19:58:381
1888673991512,2cyclictest1896410-21kthreadcore19:15:031
1888673991512,2cyclictest1296-21polkitd23:55:011
1888673991511,3cyclictest1922539-21fschecks_count19:38:331
1888673991511,1cyclictest601rcuop/322:03:431
188867099158,5cyclictest2027449-21tr21:03:360
188867099155,4cyclictest2132552-21sshd22:29:270
188867099154,6cyclictest0-21swapper/000:36:270
188867099151,9cyclictest2183101-21kthreadcore23:13:370
188867099151,9cyclictest0-21swapper/022:58:370
1888670991512,2cyclictest29021-21rtkit-daemon20:11:110
1888670991512,2cyclictest2283713-21systemd00:35:010
1888670991512,2cyclictest2217201-21dump-pmu-power23:40:000
1888670991512,2cyclictest0-21swapper/000:10:010
1888670991511,3cyclictest2150831-21systemd22:45:010
188867099151,13cyclictest2042088-21latency_hist21:15:000
1888670991511,3cyclictest1904579-21gltestperf19:23:310
1888670991511,2cyclictest2180756-21munin-run23:10:010
188867099150,9cyclictest2013169-21grep20:53:350
2649091140,1phc2sys0-21swapper/321:46:283
188867699141,6cyclictest0-21swapper/222:30:022
1888676991412,1cyclictest0-21swapper/220:51:082
1888676991412,1cyclictest0-21swapper/200:38:362
1888676991412,1cyclictest0-21swapper/200:28:322
1888676991411,1cyclictest0-21swapper/223:58:322
1888676991411,1cyclictest0-21swapper/223:08:382
1888676991411,1cyclictest0-21swapper/222:59:402
1888676991411,1cyclictest0-21swapper/222:45:002
1888676991411,1cyclictest0-21swapper/222:38:382
1888676991411,1cyclictest0-21swapper/221:40:012
1888676991411,1cyclictest0-21swapper/221:28:342
1888676991411,1cyclictest0-21swapper/221:13:392
1888676991411,1cyclictest0-21swapper/219:48:332
1888676991411,1cyclictest0-21swapper/219:15:392
188867399147,2cyclictest501rcuop/223:56:401
188867399147,1cyclictest601rcuop/321:22:001
188867399146,3cyclictest501rcuop/223:42:091
188867399146,3cyclictest501rcuop/223:02:501
188867399146,3cyclictest501rcuop/221:11:021
188867399146,3cyclictest501rcuop/220:11:351
188867399146,3cyclictest501rcuop/200:06:541
1888673991411,2cyclictest2078220-21timerwakeupswit21:43:431
1888673991410,1cyclictest601rcuop/320:08:301
188867099147,5cyclictest257-21systemd-journal22:20:010
188867099142,7cyclictest2174757-21awk23:05:010
188867099141,8cyclictest1987726-21cat20:29:550
188867099141,7cyclictest2006987-21diskstats20:48:320
1888670991411,2cyclictest2265681-21latency_hist00:20:010
1888670991411,2cyclictest2241381-21munin-run00:00:010
1888670991411,2cyclictest1989009-21gltestperf20:33:360
1888670991411,2cyclictest1932729-21needreboot19:43:380
1888670991411,2cyclictest1888663-21cyclictest23:43:290
1888670991411,2cyclictest1313-21gmain23:15:030
1888670991411,2cyclictest1296-21polkitd19:50:010
1888670991411,2cyclictest1288-1atopacctd22:03:370
1888670991411,2cyclictest1286-21avahi-daemon22:25:010
1888670991411,2cyclictest1286-21avahi-daemon21:25:010
1888670991411,2cyclictest0-21swapper/019:40:020
1888670991410,3cyclictest2232017-21kthreadcore23:53:360
2649091130,3phc2sys0-21swapper/320:43:303
2649091130,2phc2sys0-21swapper/300:34:283
188867699132,8cyclictest0-21swapper/220:50:022
1888676991311,1cyclictest0-21swapper/223:53:312
1888676991311,1cyclictest0-21swapper/223:50:022
1888676991311,1cyclictest0-21swapper/222:53:312
1888676991311,1cyclictest0-21swapper/220:40:022
1888676991311,1cyclictest0-21swapper/219:20:082
1888676991310,1cyclictest0-21swapper/223:33:282
1888676991310,1cyclictest0-21swapper/223:28:352
1888676991310,1cyclictest0-21swapper/223:13:312
1888676991310,1cyclictest0-21swapper/222:50:022
1888676991310,1cyclictest0-21swapper/222:23:352
1888676991310,1cyclictest0-21swapper/222:03:382
1888676991310,1cyclictest0-21swapper/221:08:382
1888676991310,1cyclictest0-21swapper/221:03:372
1888676991310,1cyclictest0-21swapper/220:58:442
1888676991310,1cyclictest0-21swapper/220:23:342
1888676991310,1cyclictest0-21swapper/220:18:362
1888676991310,1cyclictest0-21swapper/220:03:392
1888676991310,1cyclictest0-21swapper/219:58:382
1888676991310,1cyclictest0-21swapper/219:38:422
1888676991310,1cyclictest0-21swapper/200:23:382
1888676991310,1cyclictest0-21swapper/200:20:002
1888676991310,1cyclictest0-21swapper/200:13:312
188867699130,6cyclictest0-21swapper/222:00:022
188867399137,1cyclictest601rcuop/322:15:491
1888673991310,2cyclictest2242891-21irqcore00:03:371
1888673991310,2cyclictest2082889-21kthreadcore21:48:371
1888673991310,2cyclictest2001657-21irqrtprio20:43:361
1888673991310,2cyclictest1994939-21fschecks_count20:38:341
188867099139,3cyclictest1896819-21kthreadcore19:15:040
188867099138,4cyclictest1978039-21tr20:23:370
188867099136,5cyclictest257-21systemd-journal19:30:280
188867099136,2cyclictest2205145-21awk23:30:000
188867099135,7cyclictest2020384-21cut20:58:370
1888670991310,2cyclictest257-21systemd-journal21:39:280
1888670991310,2cyclictest2242558-21gltestperf00:03:350
1888670991310,2cyclictest2205894-21tail23:33:300
1888670991310,2cyclictest2077113-21kthreadcore21:43:380
1888670991310,2cyclictest2046899-21kthreadcore21:18:370
1888670991310,2cyclictest2031576-21irqcore21:08:360
188867099130,4cyclictest1958179-21/usr/sbin/munin20:08:350
2649091123,2phc2sys0-21swapper/300:15:013
2649091120,6phc2sys0-21swapper/322:13:303
2649091120,1phc2sys0-21swapper/323:23:433
188867699129,1cyclictest0-21swapper/221:48:382
188867699129,1cyclictest0-21swapper/220:33:322
188867699129,1cyclictest0-21swapper/220:07:162
188867699129,1cyclictest0-21swapper/219:28:372
1888676991210,1cyclictest0-21swapper/223:03:372
1888676991210,1cyclictest0-21swapper/221:35:012
1888676991210,1cyclictest0-21swapper/220:15:012
1888676991210,1cyclictest0-21swapper/200:08:402
188867099129,2cyclictest2269359-21kthreadcore00:23:370
188867099129,2cyclictest2194904-21irqrtprio23:23:370
188867099129,2cyclictest2001693-21kernelversion20:43:360
2649091111,2phc2sys0-21swapper/321:18:283
2649091111,2phc2sys0-21swapper/319:58:303
2649091110,2phc2sys0-21swapper/322:18:383
2649091110,2phc2sys0-21swapper/321:08:303
2649091110,1phc2sys0-21swapper/322:38:593
2649091110,1phc2sys0-21swapper/321:27:223
2649091110,1phc2sys0-21swapper/320:14:453
2649091110,1phc2sys0-21swapper/319:51:333
188867699119,1cyclictest0-21swapper/222:13:362
188867699119,1cyclictest0-21swapper/221:20:592
188867699119,1cyclictest0-21swapper/221:16:532
188867699119,1cyclictest0-21swapper/220:25:422
188867699119,1cyclictest0-21swapper/219:50:532
188867699119,1cyclictest0-21swapper/200:30:262
188867099118,2cyclictest2273557-21kthreadcore00:28:360
2649091103,1phc2sys0-21swapper/323:40:343
2649091101,2phc2sys0-21swapper/323:28:363
2649091101,2phc2sys0-21swapper/323:03:403
2649091101,2phc2sys0-21swapper/322:48:373
2649091101,2phc2sys0-21swapper/300:03:313
2649091100,3phc2sys0-21swapper/300:17:313
2649091100,2phc2sys0-21swapper/323:58:303
2649091100,2phc2sys0-21swapper/323:15:023
2649091100,2phc2sys0-21swapper/322:10:023
2649091100,2phc2sys0-21swapper/319:23:403
2649091100,1phc2sys0-21swapper/323:50:203
2649091100,1phc2sys0-21swapper/323:33:533
2649091100,1phc2sys0-21swapper/323:08:373
2649091100,1phc2sys0-21swapper/322:57:273
2649091100,1phc2sys0-21swapper/321:44:173
2649091100,1phc2sys0-21swapper/321:33:073
2649091100,1phc2sys0-21swapper/320:59:373
2649091100,1phc2sys0-21swapper/320:37:173
2649091100,1phc2sys0-21swapper/320:33:083
2649091100,1phc2sys0-21swapper/300:35:163
264909192,1phc2sys0-21swapper/322:30:013
264909191,2phc2sys0-21swapper/323:48:403
264909191,2phc2sys0-21swapper/321:03:333
264909191,2phc2sys0-21swapper/319:28:363
264909191,2phc2sys0-21swapper/300:28:353
264909191,1phc2sys0-21swapper/320:03:313
264909191,1phc2sys0-21swapper/319:13:343
264909190,2phc2sys0-21swapper/323:38:383
264909190,2phc2sys0-21swapper/323:18:293
264909190,2phc2sys0-21swapper/322:53:303
264909190,2phc2sys0-21swapper/321:54:553
264909190,2phc2sys0-21swapper/321:12:223
264909190,2phc2sys0-21swapper/320:28:433
264909190,2phc2sys0-21swapper/320:18:333
264909190,2phc2sys0-21swapper/300:20:533
264909190,1phc2sys0-21swapper/322:24:293
264909190,1phc2sys0-21swapper/322:02:203
264909190,1phc2sys0-21swapper/321:23:133
264909190,1phc2sys0-21swapper/320:48:033
264909190,1phc2sys0-21swapper/320:07:193
264909190,1phc2sys0-21swapper/319:33:333
18886769990,6cyclictest0-21swapper/219:10:022
264909181,2phc2sys0-21swapper/322:30:423
264909181,2phc2sys0-21swapper/319:37:383
264909180,2phc2sys0-21swapper/322:43:323
264909180,2phc2sys0-21swapper/320:53:283
264909180,2phc2sys0-21swapper/320:22:053
264909180,2phc2sys0-21swapper/319:08:333
264909180,2phc2sys0-21swapper/300:06:393
264909180,1phc2sys0-21swapper/321:55:353
264909180,1phc2sys0-21swapper/321:38:363
264909180,1phc2sys0-21swapper/319:45:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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