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2025-12-11 - 04:10
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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 Thu Dec 11, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
152568421030,3sleep30-21swapper/323:07:153
15550342860,2sleep30-21swapper/323:25:073
16201662670,2sleep30-21swapper/300:00:143
16201662670,2sleep30-21swapper/300:00:143
14584912360,1sleep20-21swapper/222:30:032
13389962260,2sleep20-21swapper/221:20:092
1173355992618,7cyclictest1671813-21kthreadcore00:30:090
1173355992617,5cyclictest1652-1atopacctd23:20:100
1173355992615,7cyclictest1593881-21timerwakeupswit23:45:120
15804302250,1sleep20-21swapper/223:40:052
1173356992519,2cyclictest170550irq/121-eno122:45:011
1173356992519,2cyclictest170550irq/121-eno122:30:011
1173356992512,3cyclictest0-21swapper/123:05:031
1173355992518,6cyclictest1458771-21if_err_eno122:30:050
1173356992416,6cyclictest0-21swapper/122:15:001
1173356992414,3cyclictest1496487-21kthreadcore22:50:091
1173356992410,3cyclictest0-21swapper/121:40:001
1173355992421,2cyclictest1-21systemd23:55:010
1173355992421,2cyclictest1-21systemd23:55:010
1173356992315,3cyclictest0-21swapper/100:40:031
1173356992310,3cyclictest0-21swapper/122:35:041
1173355992320,2cyclictest1405063-21acpi22:00:000
1173355992320,2cyclictest1379148-21sort21:45:010
1173357992218,1cyclictest0-21swapper/222:20:012
1173356992219,2cyclictest1553375-21cron23:25:001
1173356992219,2cyclictest0-21swapper/119:15:011
1173356992218,3cyclictest36-21ksoftirqd/122:05:021
1173356992215,6cyclictest1335173-21wc21:20:021
1173356992214,3cyclictest1667201-21aten_repower_vo00:30:021
1173356992212,3cyclictest0-21swapper/122:10:021
1173356992211,3cyclictest1588159-21/usr/sbin/munin23:45:101
1173356992211,3cyclictest0-21swapper/121:55:011
1173356992210,6cyclictest0-21swapper/122:50:011
1173356992118,2cyclictest1382663-21kthreadcore21:45:061
1173356992118,2cyclictest1299321-21perf20:55:001
1173356992111,2cyclictest0-21swapper/122:55:101
1173355992118,2cyclictest1635-21dbus-daemon00:25:010
1173355992118,2cyclictest1585277-21grep23:40:150
1173355992118,2cyclictest1510402-21ssh23:00:020
1173355992116,4cyclictest1338636-21kthreadcore21:20:090
1173355992115,5cyclictest1392191-21kthreadcore21:50:110
1173355992114,2cyclictest1529691-21kthreadcore23:10:070
1173355992112,8cyclictest1413919-21systemd22:05:010
1173355992111,5cyclictest1640581-21apt00:15:000
302487291200,2phc2sys0-21swapper/322:22:243
1173357992018,1cyclictest0-21swapper/220:05:022
1173357992018,1cyclictest0-21swapper/200:30:012
1173357992017,1cyclictest0-21swapper/220:50:012
1173357992017,1cyclictest0-21swapper/219:15:012
1173357992017,1cyclictest0-21swapper/200:15:012
117335699207,3cyclictest0-21swapper/122:00:001
1173356992017,2cyclictest1675789-21latency_hist00:35:011
1173356992017,2cyclictest1544980-21aten_repower_cu23:20:011
1173356992017,2cyclictest1343953-21aten2.4-expect21:25:011
1173356992016,3cyclictest1652-1atopacctd00:25:011
1173356992016,3cyclictest1615342-21gltestperf00:00:041
1173356992016,3cyclictest1615342-21gltestperf00:00:041
1173356992015,3cyclictest1220534-21latency_hist19:50:021
1173356992010,4cyclictest0-21swapper/123:35:011
117335599208,5cyclictest1527381-21latency_hist23:10:010
1173355992011,8cyclictest0-21swapper/000:35:020
1173357991917,1cyclictest0-21swapper/223:20:012
1173357991917,1cyclictest0-21swapper/220:40:012
1173357991917,1cyclictest0-21swapper/220:05:022
1173357991917,1cyclictest0-21swapper/200:20:032
1173357991916,1cyclictest0-21swapper/223:55:012
1173357991916,1cyclictest0-21swapper/223:55:012
1173357991916,1cyclictest0-21swapper/223:00:002
1173357991916,1cyclictest0-21swapper/222:15:012
1173357991916,1cyclictest0-21swapper/221:50:022
1173357991916,1cyclictest0-21swapper/200:00:012
1173357991915,3cyclictest0-21swapper/223:25:002
1173356991916,2cyclictest1803-21gdbus23:45:011
1173356991916,2cyclictest1633494-21kthreadcore00:10:081
1173356991916,2cyclictest1632252-21aten_repower_vo00:10:021
1173356991916,2cyclictest1556120-21kthreadcore23:25:081
1173356991916,2cyclictest1528987-21kthreadcore23:10:071
1173356991916,2cyclictest1432372-21head22:15:041
1173356991916,2cyclictest1282580-21kthreadcore20:40:061
1173356991916,2cyclictest1275404-21latency_hist20:35:021
1173356991916,2cyclictest1189266-21latency_hist19:25:011
1173356991912,2cyclictest170550irq/121-eno121:45:021
1173355991917,1cyclictest1571157-21munin-plugin-st23:35:010
1173355991916,2cyclictest1803-21gdbus20:10:000
1173355991916,2cyclictest1652-1atopacctd22:22:140
1173355991916,2cyclictest1635-21dbus-daemon20:55:020
1173355991916,2cyclictest1608756-21kthreadcore23:55:070
1173355991916,2cyclictest1470505-21kthreadcore22:35:090
1173355991916,2cyclictest1449757-21cut22:25:040
1173355991916,2cyclictest1440198-21cut22:20:010
1173355991916,2cyclictest1415329-21kthreadcore22:05:080
1173355991916,2cyclictest1349222-21threads21:25:130
1173355991916,2cyclictest1318673-21head21:10:040
1173355991916,2cyclictest1302422-21kthreadcore20:55:100
1173355991916,2cyclictest1201812-21cpuspeed_turbos19:35:010
1173355991916,2cyclictest0-21swapper/022:50:020
1173355991911,7cyclictest0-21swapper/021:20:010
1173355991911,4cyclictest1616319-21kthreadcore00:00:070
1173355991911,4cyclictest1616319-21kthreadcore00:00:070
1173355991911,2cyclictest1483888-21telnet22:45:010
1173355991910,4cyclictest1383922-21mailstats21:45:090
117335599190,5cyclictest1431024-21apt-get22:14:590
302487291180,3phc2sys0-21swapper/321:15:483
302487291180,2phc2sys0-21swapper/323:36:303
302487291180,2phc2sys0-21swapper/323:04:163
302487291180,2phc2sys0-21swapper/322:03:373
302487291180,2phc2sys0-21swapper/321:26:043
302487291180,2phc2sys0-21swapper/300:22:163
1173357991815,1cyclictest0-21swapper/222:55:012
1173357991813,2cyclictest0-21swapper/200:10:002
1173357991811,2cyclictest0-21swapper/222:43:232
117335699188,2cyclictest170550irq/121-eno120:50:021
117335699182,5cyclictest1287233-21kworker/u16:3+events_unbound21:15:011
1173356991815,2cyclictest1700-21systemd-logind00:00:021
1173356991815,2cyclictest1572018-21cut23:35:051
1173356991815,2cyclictest1518864-21latency_hist23:05:021
1173356991815,2cyclictest1466641-21latency_hist22:35:021
1173356991815,2cyclictest1445593-21mailstats22:20:111
1173356991815,2cyclictest1281047-21ls20:40:001
1173356991815,2cyclictest1262690-21apt-get20:25:021
1173356991815,2cyclictest1-21systemd21:05:011
1173356991815,2cyclictest1201429-21aten_repower_en19:34:591
1173356991815,2cyclictest1195633-21aten_repower_po19:30:021
1173356991815,2cyclictest1182019-21grep19:15:031
1173356991815,2cyclictest0-21swapper/119:40:021
1173356991814,3cyclictest1173353-21cyclictest20:15:021
117335599189,5cyclictest1364911-21kthreadcore21:35:090
117335599189,5cyclictest0-21swapper/000:15:090
1173355991815,2cyclictest1635-21dbus-daemon20:35:020
1173355991815,2cyclictest1518637-21find23:05:000
1173355991815,2cyclictest1234955-21kthreadcore20:00:090
1173355991815,2cyclictest1225961-21aten_repower_en19:55:010
1173355991815,2cyclictest1-21systemd20:30:030
1173355991815,2cyclictest1202985-21kthreadcore19:35:060
1173355991815,2cyclictest1183212-21basename19:20:020
1173355991815,2cyclictest1173362-21sh19:10:010
1173355991811,3cyclictest0-21swapper/023:16:200
1173355991810,7cyclictest1352668-21/usr/sbin/munin21:30:100
15013202170,2sleep30-21swapper/322:55:013
1173357991715,1cyclictest0-21swapper/220:55:052
1173357991715,1cyclictest0-21swapper/219:45:022
1173357991715,1cyclictest0-21swapper/219:25:012
1173357991715,1cyclictest0-21swapper/200:25:012
1173357991714,1cyclictest0-21swapper/223:35:002
1173357991714,1cyclictest0-21swapper/223:30:002
1173357991714,1cyclictest0-21swapper/223:11:502
1173357991714,1cyclictest0-21swapper/222:07:342
1173357991714,1cyclictest0-21swapper/221:35:092
1173357991714,1cyclictest0-21swapper/221:30:002
1173357991714,1cyclictest0-21swapper/219:40:012
1173357991714,1cyclictest0-21swapper/200:30:082
117335699176,6cyclictest0-21swapper/121:25:501
1173356991714,2cyclictest1700-21systemd-logind23:55:011
1173356991714,2cyclictest1700-21systemd-logind23:55:011
1173356991714,2cyclictest0-21swapper/100:20:001
117335599176,6cyclictest0-21swapper/021:10:010
117335599175,4cyclictest1220684-21munin-plugin-st19:50:020
117335599174,3cyclictest1287211-21munin-run20:45:010
1173355991714,2cyclictest1572441-21kthreadcore23:35:070
1173355991714,2cyclictest1558067-21kthreadcore23:25:090
1173355991714,2cyclictest1256363-21aten_repower_fr20:20:000
1173355991714,2cyclictest1213073-21unixbench-2d19:40:150
1173355991714,2cyclictest1190460-21irqcore19:25:070
1173355991714,2cyclictest1180433-21kthreadcore19:15:020
1173355991711,2cyclictest170550irq/121-eno120:10:100
1173355991710,4cyclictest1614455-1atop00:10:010
117335599170,4cyclictest1185019-21cut19:20:080
302487291160,2phc2sys0-21swapper/300:05:573
117335799161,4cyclictest0-21swapper/223:40:012
1173357991614,1cyclictest0-21swapper/221:55:022
1173357991614,1cyclictest0-21swapper/219:20:012
1173357991613,1cyclictest0-21swapper/222:20:132
1173357991613,1cyclictest0-21swapper/221:45:002
1173357991613,1cyclictest0-21swapper/220:35:022
1173357991613,1cyclictest0-21swapper/220:25:002
1173357991613,1cyclictest0-21swapper/220:15:112
1173357991612,2cyclictest0-21swapper/222:25:032
1173357991612,2cyclictest0-21swapper/221:55:092
117335699165,2cyclictest1250276-21cat20:15:011
117335699161,4cyclictest1238160-21munin-run20:05:011
1173356991613,2cyclictest1173353-21cyclictest21:30:101
117335599168,4cyclictest1661711-21cut00:25:080
1173355991614,1cyclictest1228838-21kthreadcore19:55:080
1173355991613,2cyclictest1497627-21head22:50:110
1173355991613,2cyclictest0-21swapper/020:40:010
302487291151,4phc2sys0-21swapper/319:10:003
302487291151,2phc2sys0-21swapper/320:40:073
302487291150,2phc2sys0-21swapper/323:50:003
302487291150,2phc2sys0-21swapper/323:42:273
302487291150,2phc2sys0-21swapper/322:40:113
302487291150,2phc2sys0-21swapper/321:13:073
1173357991513,1cyclictest0-21swapper/223:05:052
1173357991513,1cyclictest0-21swapper/222:40:012
1173357991513,1cyclictest0-21swapper/222:00:052
1173357991513,1cyclictest0-21swapper/200:00:142
1173357991513,1cyclictest0-21swapper/200:00:142
1173357991512,1cyclictest0-21swapper/221:35:002
1173357991512,1cyclictest0-21swapper/221:05:022
1173357991512,1cyclictest0-21swapper/220:55:002
1173357991512,1cyclictest0-21swapper/220:00:012
1173357991512,1cyclictest0-21swapper/219:10:022
117335699159,2cyclictest170550irq/121-eno119:55:021
117335699154,3cyclictest1231857-21munin-plugin-st20:00:011
1173356991513,1cyclictest341rcuc/119:10:021
1173356991512,2cyclictest1263363-21fschecks_time20:25:061
1173356991512,2cyclictest1244135-21systemd-run20:10:001
1173355991513,1cyclictest1311801-21cpu21:05:000
117335599150,6cyclictest0-21swapper/020:45:070
302487291142,2phc2sys0-21swapper/300:12:303
302487291140,2phc2sys0-21swapper/322:56:143
302487291140,2phc2sys0-21swapper/321:58:173
302487291140,2phc2sys0-21swapper/300:26:043
302487291140,2phc2sys0-21swapper/300:16:533
14721652140,2sleep30-21swapper/322:35:183
1173357991412,1cyclictest0-21swapper/223:45:082
1173357991412,1cyclictest0-21swapper/221:10:072
1173357991412,1cyclictest0-21swapper/221:10:012
1173357991412,1cyclictest0-21swapper/220:40:072
1173357991412,1cyclictest0-21swapper/220:30:012
1173357991412,1cyclictest0-21swapper/220:15:012
1173357991412,1cyclictest0-21swapper/219:45:052
1173357991412,1cyclictest0-21swapper/219:25:082
1173357991412,1cyclictest0-21swapper/200:35:052
1173357991411,2cyclictest0-21swapper/221:15:442
1173357991411,1cyclictest0-21swapper/223:00:072
1173357991411,1cyclictest0-21swapper/219:55:012
1173357991411,1cyclictest0-21swapper/219:34:592
117335699141,4cyclictest1317806-21munin-run21:10:011
302487291131,3phc2sys0-21swapper/321:50:023
302487291130,2phc2sys0-21swapper/323:22:193
302487291130,2phc2sys0-21swapper/322:13:303
302487291130,2phc2sys0-21swapper/320:17:003
1173357991311,1cyclictest0-21swapper/222:45:062
117335699136,5cyclictest260-21systemd-journal20:59:551
1173355991310,2cyclictest1257588-21irqcore20:20:050
302487291121,5phc2sys0-21swapper/322:35:003
302487291120,5phc2sys0-21swapper/321:35:013
302487291120,2phc2sys0-21swapper/321:52:383
302487291120,2phc2sys0-21swapper/320:26:223
302487291120,2phc2sys0-21swapper/320:08:383
302487291120,2phc2sys0-21swapper/319:59:173
302487291120,2phc2sys0-21swapper/319:53:043
302487291120,2phc2sys0-21swapper/319:33:323
302487291120,2phc2sys0-21swapper/319:11:043
117335699120,3cyclictest1207639-21/usr/sbin/munin19:40:031
302487291113,2phc2sys0-21swapper/300:38:073
302487291112,2phc2sys0-21swapper/323:32:253
302487291111,4phc2sys0-21swapper/319:25:013
302487291111,3phc2sys0-21swapper/323:56:313
302487291111,2phc2sys0-21swapper/322:45:573
302487291111,2phc2sys0-21swapper/321:00:083
302487291111,2phc2sys0-21swapper/319:45:103
302487291110,3phc2sys0-21swapper/322:15:073
302487291110,3phc2sys0-21swapper/321:22:013
302487291110,3phc2sys0-21swapper/300:30:093
302487291110,2phc2sys0-21swapper/320:46:483
302487291110,2phc2sys0-21swapper/320:11:553
302487291110,1phc2sys0-21swapper/320:32:033
14200362110,2sleep30-21swapper/322:06:043
302487291103,3phc2sys0-21swapper/323:10:083
302487291101,2phc2sys0-21swapper/320:55:033
302487291100,3phc2sys0-21swapper/321:40:043
302487291100,3phc2sys0-21swapper/321:37:083
302487291100,3phc2sys0-21swapper/320:40:003
302487291100,3phc2sys0-21swapper/319:20:023
302487291100,2phc2sys0-21swapper/323:51:063
302487291100,2phc2sys0-21swapper/323:51:063
302487291100,2phc2sys0-21swapper/322:28:093
302487291100,2phc2sys0-21swapper/320:50:023
302487291100,2phc2sys0-21swapper/319:25:193
302487291100,1phc2sys0-21swapper/319:44:583
30248729190,3phc2sys0-21swapper/321:05:103
30248729190,2phc2sys0-21swapper/323:15:103
30248729190,2phc2sys0-21swapper/320:20:053
30248729190,2phc2sys0-21swapper/320:00:133
30248729190,2phc2sys0-21swapper/319:35:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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