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2026-08-02 - 05:01
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot6.osadl.org (updated Sun Aug 02, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146363599147134,10cyclictest1511813-21latency_hist21:40:000
146363799142110,20cyclictest1525083-21latency_hist22:20:011
146363799142110,20cyclictest1525083-21latency_hist22:20:011
146363599135128,5cyclictest1546071-21kworker/u8:1+events_unbound23:30:010
146363799131122,6cyclictest1562256-21kworker/u8:0+flush-179:000:40:011
146363599130122,5cyclictest1568652-21kworker/u8:1+events_unbound00:35:170
146363599127106,5cyclictest1541492-21kworker/u8:1+events_unbound23:10:160
146363599126120,4cyclictest1514992-21kworker/u8:0+events_unbound22:30:250
146363599124116,5cyclictest1466797-21kworker/u8:3+events_unbound19:20:020
146363599124101,6cyclictest1551117-21kworker/u8:3+events_unbound23:45:170
146363799123114,6cyclictest1493953-21kworker/u8:1+flush-179:021:05:011
14636379912293,19cyclictest1492973-21apt-get20:40:131
146363599117103,11cyclictest1466708-21latency_hist19:20:010
146363799113102,7cyclictest1483187-21kworker/u8:1+flush-179:020:20:011
146363799112103,6cyclictest1568661-21latency_hist00:35:011
146363599111101,7cyclictest1502260-21latency_hist21:10:010
14636359911094,12cyclictest3014647-21cups-browsed00:00:000
14636359910897,8cyclictest1555828-21kworker/u8:2+events_unbound00:15:200
14636359910895,9cyclictest1526684-21apt-get22:25:000
146363599108101,5cyclictest1456432-21kworker/u8:0+events_unbound19:25:140
14636359910596,6cyclictest1555828-21kworker/u8:2+events_unbound00:15:010
14636359910499,3cyclictest1456432-21kworker/u8:0+events_unbound19:10:210
14636359910393,5cyclictest1503835-21kworker/u8:0+flush-179:021:20:210
14636379910295,5cyclictest1508678-21kworker/u8:2+events_unbound21:40:241
14636379910287,12cyclictest1213033-21systemd-journal19:55:011
14636359910297,4cyclictest1507034-21kworker/u8:1+flush-179:021:30:220
14636359910295,4cyclictest1514992-21kworker/u8:0+events_unbound21:55:200
14636359910194,4cyclictest1466797-21kworker/u8:3+events_unbound19:30:190
14636359910094,4cyclictest1474917-21kworker/u8:1+flush-179:019:55:210
1463635999995,3cyclictest1546071-21kworker/u8:1+flush-179:023:35:250
1463635999893,4cyclictest1514992-21kworker/u8:0+events_unbound22:55:240
1463637999783,9cyclictest1525725-21kworker/u8:3+events_unbound22:25:021
1463635999793,3cyclictest1562256-21kworker/u8:0+flush-179:000:20:250
1463635999784,4cyclictest1555828-21kworker/u8:2+flush-179:000:25:210
1463635999783,6cyclictest1487965-21kworker/u8:0+events_unbound20:30:210
1463635999691,4cyclictest1536708-21kworker/u8:2+events_unbound23:00:230
1463635999691,4cyclictest1514992-21kworker/u8:0+flush-179:021:50:230
1463635999591,3cyclictest1536708-21kworker/u8:2+flush-179:023:15:280
1463635999583,5cyclictest1480018-21kworker/u8:3+events_unbound20:15:220
1463635999489,3cyclictest1471215-21kworker/u8:1+flush-179:019:35:210
1463635999388,3cyclictest1557497-21kworker/u8:0+flush-179:000:00:150
1463635999387,4cyclictest1546071-21kworker/u8:1+events_unbound23:44:590
1463635999382,8cyclictest1523215-21latency_hist22:15:010
1463635999376,8cyclictest1521607-21kworker/u8:1+events_unbound22:35:170
1463635999285,5cyclictest1507034-21kworker/u8:1+events_unbound21:40:130
1463635999284,6cyclictest1546071-21kworker/u8:1+events_unbound23:30:210
1463637999181,7cyclictest1456432-21kworker/u8:0+flush-179:019:15:171
1463637999180,8cyclictest1473606-21apt-get19:40:131
1463635999180,4cyclictest1514992-21kworker/u8:0+events_unbound22:00:250
1463637999081,6cyclictest1516622-21kworker/u8:3+events_unbound22:00:021
1463637998980,6cyclictest1483187-21kworker/u8:1+flush-179:020:30:151
1463637998970,14cyclictest1478120-21apt-get19:55:001
1463635998984,4cyclictest1480018-21kworker/u8:3+events_unbound20:10:290
1463635998882,4cyclictest1514992-21kworker/u8:0+events_unbound22:05:150
1463637998782,3cyclictest1466797-21kworker/u8:3+flush-179:019:30:141
1463637998675,8cyclictest1505449-21latency_hist21:20:011
1463637998673,9cyclictest1508678-21kworker/u8:2+events_unbound21:50:131
1463637998673,9cyclictest1213033-21systemd-journal20:40:011
1463635998679,5cyclictest1474917-21kworker/u8:1+events_unbound19:50:270
1463637998573,9cyclictest1493953-21kworker/u8:1+flush-179:020:55:231
1463635998479,4cyclictest1483187-21kworker/u8:1+flush-179:020:25:270
1463635998478,4cyclictest1483187-21kworker/u8:1+events_unbound20:20:210
1463635998469,7cyclictest1562256-21kworker/u8:0+events_unbound00:30:190
1463635998379,3cyclictest1514992-21kworker/u8:0+flush-179:022:15:220
1463635998379,3cyclictest1514992-21kworker/u8:0+flush-179:022:15:220
1463635998378,3cyclictest1554237-21kworker/u8:0+flush-179:023:50:190
1463637998274,6cyclictest1483187-21kworker/u8:1+flush-179:020:20:251
1463637998274,5cyclictest1551339-21apt-get23:40:121
1463635998277,4cyclictest1456432-21kworker/u8:0+events_unbound19:40:250
1463635998270,5cyclictest1487965-21kworker/u8:0+events_unbound20:35:200
1463637998177,3cyclictest1512757-21kworker/u8:3+flush-179:021:45:261
1463637998169,9cyclictest1465110-21latency_hist19:15:021
1463635998177,3cyclictest1479948-21kworker/u8:2+flush-179:020:00:250
1463635998176,4cyclictest1525725-21kworker/u8:3+flush-179:022:25:270
1463635998076,3cyclictest1521607-21kworker/u8:1+flush-179:022:50:210
1463637997968,7cyclictest1560143-21kworker/u8:3+flush-179:000:10:011
1463635997971,5cyclictest1507034-21kworker/u8:1+events_unbound21:25:190
1463637997869,6cyclictest1554237-21kworker/u8:0+flush-179:023:50:131
1463635997873,4cyclictest1478089-21kworker/u8:0+flush-179:020:05:160
1463637997765,8cyclictest1539702-21kworker/u8:3+flush-179:023:25:011
1463637997669,4cyclictest1483187-21kworker/u8:1+flush-179:020:25:161
1463637997668,6cyclictest1525323-21/usr/sbin/munin22:20:161
1463637997658,15cyclictest1521607-21kworker/u8:1+flush-179:022:40:001
1463635997670,4cyclictest1555828-21kworker/u8:2+events_unbound00:05:240
1463635997670,4cyclictest1493953-21kworker/u8:1+flush-179:020:45:220
1463637997567,5cyclictest1507034-21kworker/u8:1+flush-179:021:35:211
1463635997571,3cyclictest1521607-21kworker/u8:1+flush-179:022:40:210
1463635997571,3cyclictest1521607-21kworker/u8:1+flush-179:022:40:210
1463635997571,3cyclictest1493953-21kworker/u8:1+flush-179:020:52:030
1463635997368,4cyclictest1507034-21kworker/u8:1+events_unbound21:45:200
1463637997157,10cyclictest1213033-21systemd-journal21:30:011
1463635997165,4cyclictest1493953-21kworker/u8:1+flush-179:020:55:190
1463637997060,7cyclictest1514992-21kworker/u8:0+flush-179:022:10:001
1463635997065,4cyclictest1500708-21kworker/u8:3+flush-179:021:10:220
1463637996961,6cyclictest1536470-21latency_hist22:55:001
1463637996958,8cyclictest1514992-21kworker/u8:0+flush-179:022:45:171
1463637996857,8cyclictest1557497-21kworker/u8:0+events_unbound00:00:021
1463637996856,8cyclictest1514992-21kworker/u8:0+flush-179:022:30:221
1463635996865,2cyclictest1503835-21kworker/u8:0+flush-179:021:15:180
1463635996863,4cyclictest1471785-21kworker/u8:2+events_unbound19:45:180
1463637996761,4cyclictest1514992-21kworker/u8:0+flush-179:021:55:171
1463637996759,6cyclictest1507034-21kworker/u8:1+flush-179:021:25:001
1463637996755,9cyclictest1466711-21apt-get19:20:021
1463637996661,3cyclictest1500708-21kworker/u8:3+flush-179:021:10:261
1463637996659,5cyclictest1514992-21kworker/u8:0+flush-179:022:55:161
1463637996658,6cyclictest1546071-21kworker/u8:1+flush-179:023:35:161
1463637996656,7cyclictest1514992-21kworker/u8:0+events_unbound23:05:211
1463637996656,7cyclictest1514992-21kworker/u8:0+events_unbound23:05:211
1463637996557,6cyclictest1532256-21diskstats22:40:151
1463637996557,6cyclictest1532256-21diskstats22:40:151
1463637996555,7cyclictest1471215-21kworker/u8:1+events_unbound19:35:231
1463635996559,4cyclictest1493953-21kworker/u8:1+events_unbound21:00:200
1463635996359,3cyclictest1536708-21kworker/u8:2+events_unbound23:20:310
1463637996257,3cyclictest1546071-21kworker/u8:1+flush-179:023:30:221
1463637996155,5cyclictest1474917-21kworker/u8:1+flush-179:019:45:251
1463637996155,4cyclictest1521673-21kworker/u8:2+events_unbound22:15:011
1463637996049,9cyclictest1213033-21systemd-journal20:55:011
1463637995948,9cyclictest1539702-21kworker/u8:3+events_unbound23:25:191
1463637995849,6cyclictest1478089-21kworker/u8:0+flush-179:020:05:221
1463637995750,5cyclictest1538336-21apt-get23:00:111
1463637995650,4cyclictest1562256-21kworker/u8:0+flush-179:000:20:161
1463637995650,4cyclictest1493953-21kworker/u8:1+flush-179:020:50:001
1463637995650,4cyclictest1479948-21kworker/u8:2+flush-179:020:00:211
1463635995651,4cyclictest1514992-21kworker/u8:0+events_unbound23:05:230
1463635995651,4cyclictest1514992-21kworker/u8:0+events_unbound23:05:230
1463635995651,4cyclictest1489948-21kworker/u8:2+flush-179:020:40:290
1463637995548,5cyclictest1562256-21kworker/u8:0+flush-179:000:20:011
1463637995449,3cyclictest1555823-21kworker/u8:1+events_unbound00:00:181
1463635995449,4cyclictest1514992-21kworker/u8:0+flush-179:022:45:160
1463637995347,5cyclictest1480018-21kworker/u8:3+events_unbound20:15:001
1463639994945,2cyclictest0-21swapper/221:48:592
1463637994940,7cyclictest1468824-21apt-get19:25:111
4577091480,12ptp4l61490irq/134-eno1-TxRx-019:09:553
1463635994841,5cyclictest1463496-21latency_hist19:10:020
1463637994739,6cyclictest1541492-21kworker/u8:1+events_unbound23:10:221
1463637994732,11cyclictest1507034-21kworker/u8:1+flush-179:021:30:191
1463637994438,4cyclictest1500708-21kworker/u8:3+flush-179:021:05:271
1463637994338,4cyclictest1560143-21kworker/u8:3+flush-179:000:10:191
1463637994337,4cyclictest1565454-21kworker/u8:1+events_unbound00:25:151
146364299420,41cyclictest0-21swapper/319:44:543
1463639994239,2cyclictest0-21swapper/223:58:592
1463639994239,2cyclictest0-21swapper/220:56:592
1463637994237,4cyclictest1539702-21kworker/u8:3+flush-179:023:15:151
1463639993938,1cyclictest351rcuc/222:29:592
1463639993936,2cyclictest0-21swapper/221:22:582
146363999380,35cyclictest0-21swapper/221:19:542
146363999380,35cyclictest0-21swapper/220:05:582
1463637993830,6cyclictest1554237-21kworker/u8:0+flush-179:023:50:011
1463642993734,2cyclictest0-21swapper/323:59:593
1463639993735,1cyclictest0-21swapper/221:55:002
1463639993734,2cyclictest0-21swapper/222:41:592
1463639993734,2cyclictest0-21swapper/222:41:592
1463639993734,2cyclictest0-21swapper/221:28:592
1463639993734,2cyclictest0-21swapper/220:01:002
1463639993734,2cyclictest0-21swapper/200:12:002
146363999370,35cyclictest0-21swapper/221:11:592
146364299360,35cyclictest0-21swapper/321:52:583
146364299360,35cyclictest0-21swapper/320:34:543
146364299360,1cyclictest0-21swapper/321:25:593
1463639993633,2cyclictest0-21swapper/223:42:592
1463639993633,2cyclictest0-21swapper/222:20:592
1463639993633,2cyclictest0-21swapper/221:55:592
1463639993633,2cyclictest0-21swapper/221:02:002
1463639993633,2cyclictest0-21swapper/200:31:592
1463642993533,1cyclictest0-21swapper/321:34:563
1463642993532,2cyclictest0-21swapper/321:21:583
146364299350,1cyclictest0-21swapper/320:24:563
146364299350,1cyclictest0-21swapper/320:16:593
1463639993532,2cyclictest0-21swapper/223:19:552
1463639993532,2cyclictest0-21swapper/220:49:002
146363999350,1cyclictest0-21swapper/200:03:592
1463642993432,1cyclictest0-21swapper/321:04:553
146364299340,33cyclictest0-21swapper/300:18:583
146364299340,26cyclictest0-21swapper/322:25:033
1463639993431,2cyclictest0-21swapper/220:35:582
1463639993431,2cyclictest0-21swapper/220:14:562
1463642993331,1cyclictest0-21swapper/322:42:593
1463642993331,1cyclictest0-21swapper/322:42:583
146364299330,24cyclictest1494317-21turbostat20:45:013
1463639993331,1cyclictest0-21swapper/222:15:002
1463642993230,1cyclictest0-21swapper/320:04:583
1463642993230,1cyclictest0-21swapper/319:55:003
1463642993229,2cyclictest0-21swapper/323:32:593
1463642993225,6cyclictest0-21swapper/322:00:033
146364299320,30cyclictest1513428-21turbostat21:45:003
146364299320,30cyclictest0-21swapper/322:15:033
146364299320,30cyclictest0-21swapper/322:15:033
146364299320,26cyclictest0-21swapper/319:30:103
146364299320,1cyclictest0-21swapper/320:45:593
1463642993129,1cyclictest0-21swapper/320:58:003
1463642993129,1cyclictest0-21swapper/300:13:003
1463639993128,2cyclictest0-21swapper/223:31:582
146363999310,29cyclictest0-21swapper/222:08:592
1463642993028,1cyclictest0-21swapper/323:25:593
1463642993028,1cyclictest0-21swapper/320:52:583
1463642993027,2cyclictest0-21swapper/319:10:143
1463642993023,6cyclictest0-21swapper/322:11:593
146364299300,2cyclictest0-21swapper/323:10:143
1463639993028,1cyclictest0-21swapper/221:05:592
1463639993027,2cyclictest0-21swapper/223:12:592
1463639993027,2cyclictest0-21swapper/223:00:132
1463639993027,2cyclictest0-21swapper/222:45:582
1463639993027,2cyclictest0-21swapper/222:00:032
1463639993027,2cyclictest0-21swapper/220:20:132
1463639993027,2cyclictest0-21swapper/219:20:012
146363999300,2cyclictest0-21swapper/222:50:132
146363999300,2cyclictest0-21swapper/221:35:152
146363999300,29cyclictest0-21swapper/220:50:132
146363999300,1cyclictest0-21swapper/219:57:002
1463642992927,1cyclictest0-21swapper/323:51:593
146364299290,27cyclictest0-21swapper/300:25:133
146364299290,1cyclictest0-21swapper/300:20:143
1463639992927,1cyclictest0-21swapper/219:15:002
1463639992926,2cyclictest0-21swapper/222:30:142
1463639992926,2cyclictest0-21swapper/222:17:592
1463639992926,2cyclictest0-21swapper/222:17:592
1463639992926,2cyclictest0-21swapper/220:25:132
1463639992926,2cyclictest0-21swapper/219:30:112
1463639992926,2cyclictest0-21swapper/200:27:002
1463639992926,2cyclictest0-21swapper/200:05:582
146363999290,28cyclictest0-21swapper/219:50:142
146363999290,27cyclictest0-21swapper/223:25:122
146363999290,27cyclictest0-21swapper/219:20:002
146363999290,27cyclictest0-21swapper/200:20:122
146363999290,27cyclictest0-21swapper/200:15:142
4577091280,6ptp4l61490irq/134-eno1-TxRx-023:19:563
4577091280,5ptp4l61490irq/134-eno1-TxRx-000:35:003
1463642992826,1cyclictest0-21swapper/323:22:593
1463642992826,1cyclictest0-21swapper/319:55:023
1463642992826,1cyclictest0-21swapper/300:04:583
1463642992825,2cyclictest0-21swapper/321:46:003
146364299280,27cyclictest0-21swapper/322:35:153
146364299280,27cyclictest0-21swapper/322:05:593
146364299280,26cyclictest0-21swapper/323:05:143
146364299280,26cyclictest0-21swapper/323:05:143
146363999280,26cyclictest0-21swapper/223:20:162
146363999280,26cyclictest0-21swapper/222:55:132
146363999280,26cyclictest0-21swapper/219:40:152
146363999280,25cyclictest0-21swapper/221:40:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-023:40:003
4577091270,5ptp4l441ktimers/319:30:003
4577091270,4ptp4l61490irq/134-eno1-TxRx-019:35:023
4577091270,4ptp4l441ktimers/320:10:013
4577091270,4ptp4l441ktimers/300:10:013
1463642992725,1cyclictest0-21swapper/322:48:593
1463642992725,1cyclictest0-21swapper/321:08:583
1463642992725,1cyclictest0-21swapper/319:20:023
146364299270,1cyclictest0-21swapper/321:35:143
146364299270,1cyclictest0-21swapper/320:25:143
1463639992725,1cyclictest0-21swapper/219:26:002
4577091260,6ptp4l61490irq/134-eno1-TxRx-023:49:563
4577091260,6ptp4l61490irq/134-eno1-TxRx-019:19:563
4577091260,4ptp4l61490irq/134-eno1-TxRx-023:45:003
4577091260,4ptp4l61490irq/134-eno1-TxRx-021:14:563
4577091260,4ptp4l441ktimers/321:59:553
4577091260,4ptp4l441ktimers/320:40:003
4577091260,4ptp4l441ktimers/300:40:013
146363999260,24cyclictest0-21swapper/223:36:592
146363999260,24cyclictest0-21swapper/221:30:592
146363999260,24cyclictest0-21swapper/219:39:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-023:04:553
4577091250,4ptp4l61490irq/134-eno1-TxRx-022:54:553
4577091250,4ptp4l441ktimers/322:25:003
1463642992523,1cyclictest0-21swapper/320:11:003
146364299250,24cyclictest0-21swapper/322:30:593
1463639992523,1cyclictest0-21swapper/220:35:012
1463637992521,3cyclictest0-21swapper/119:10:011
4577091240,4ptp4l61490irq/134-eno1-TxRx-019:49:543
4577091240,4ptp4l441ktimers/322:59:553
1463639992421,2cyclictest0-21swapper/223:55:012
1463639992421,2cyclictest0-21swapper/223:47:582
1463639992118,2cyclictest0-21swapper/220:17:002
4577091170,10ptp4l61490irq/134-eno1-TxRx-021:15:233
1463639991714,2cyclictest0-21swapper/220:42:592
1463639991613,2cyclictest0-21swapper/200:36:582
1463639991512,2cyclictest0-21swapper/219:46:592
146363999129,2cyclictest0-21swapper/222:35:152
14636399985,2cyclictest0-21swapper/223:05:022
14636399985,2cyclictest0-21swapper/223:05:022
14636399952,2cyclictest351rcuc/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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