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2026-08-05 - 11:53
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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 Wed Aug 05, 2026 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124925299138131,5cyclictest1245509-21kworker/u8:0+events_unbound19:15:011
124925099138128,7cyclictest1296149-21latency_hist21:35:020
124925299137129,7cyclictest1332264-21kworker/u8:3+flush-179:023:55:001
124925099137128,6cyclictest1349782-21kworker/u8:1+events_unbound00:30:000
124925299135123,9cyclictest1213033-21systemd-journal00:04:011
124925299131123,6cyclictest1332264-21kworker/u8:3+events_unbound00:00:011
124925299131123,6cyclictest1332264-21kworker/u8:3+events_unbound00:00:001
124925299128120,6cyclictest1329064-21kworker/u8:1+events_unbound23:30:001
124925099122114,5cyclictest1302774-21latency_hist21:55:010
124925099122112,8cyclictest1289775-21latency_hist21:15:010
124925099122111,8cyclictest1213033-21systemd-journal22:20:000
124925299120101,5cyclictest1320591-21kworker/u8:0+events_unbound23:10:001
124925299118112,5cyclictest1297793-21kworker/u8:0+flush-179:022:00:001
124925299118111,4cyclictest1272935-21kworker/u8:2+events_unbound20:30:161
124925299118111,4cyclictest1272935-21kworker/u8:2+events_unbound20:30:161
124925299118109,6cyclictest1294798-21kworker/u8:2+flush-179:021:45:191
124925299117111,4cyclictest1272935-21kworker/u8:2+flush-179:020:40:011
124925299117107,7cyclictest1259000-21kworker/u8:1+flush-179:019:50:211
124925099116102,9cyclictest1332264-21kworker/u8:3+flush-179:023:35:290
124925099116101,12cyclictest1213033-21systemd-journal20:20:010
124925099115106,6cyclictest1262140-21latency_hist19:50:010
124925299114106,5cyclictest1320591-21kworker/u8:0+events_unbound23:15:011
124925099114106,6cyclictest1314177-21kworker/u8:1+flush-179:022:35:010
124925099114105,6cyclictest1332264-21kworker/u8:3+flush-179:000:00:010
124925099114105,6cyclictest1332264-21kworker/u8:3+flush-179:000:00:000
124925099114105,5cyclictest1280011-21kworker/u8:3+flush-179:021:05:010
124925099114101,10cyclictest1319226-21apt-get22:45:130
124925299113107,4cyclictest1245509-21kworker/u8:0+flush-179:019:15:251
124925299113107,4cyclictest1245509-21kworker/u8:0+flush-179:019:15:241
124925299112105,5cyclictest1348193-21kworker/u8:0+flush-179:000:15:001
124925299112105,5cyclictest1306004-21kworker/u8:3+flush-179:022:10:011
124925299112103,6cyclictest1329064-21kworker/u8:1+flush-179:023:30:211
1249250991121,108cyclictest1-21systemd23:20:010
124925099112107,3cyclictest1316011-21kworker/u8:0+flush-179:022:35:250
124925099112100,8cyclictest1318431-21kworker/u8:3+events_unbound22:45:010
124925299111104,5cyclictest1292158-21kworker/u8:1+flush-179:021:25:171
124925299110102,6cyclictest1343431-21kworker/u8:2+events_unbound00:30:031
124925099110104,4cyclictest1294798-21kworker/u8:2+flush-179:021:45:230
124925299109101,6cyclictest1332264-21kworker/u8:3+flush-179:023:40:201
12492529910898,7cyclictest1294798-21kworker/u8:2+flush-179:022:15:191
12492509910898,7cyclictest1346616-21latency_hist00:10:010
12492509910898,7cyclictest1346616-21latency_hist00:10:000
12492509910898,7cyclictest1329076-21kworker/u8:2+events_unbound23:30:250
12492509910895,9cyclictest1245509-21kworker/u8:0+events_unbound19:10:160
12492529910699,6cyclictest1290011-21kworker/u8:0+flush-179:021:20:001
12492529910699,4cyclictest1343431-21kworker/u8:2+flush-179:000:35:221
12492529910698,5cyclictest1262175-21kworker/u8:3+flush-179:020:20:161
12492529910696,7cyclictest1245509-21kworker/u8:0+events_unbound19:40:231
12492529910686,6cyclictest1279960-21kworker/u8:0+events_unbound20:50:191
12492529910599,4cyclictest1259003-21kworker/u8:2+flush-179:019:45:221
12492529910595,8cyclictest1213033-21systemd-journal21:00:001
12492509910499,4cyclictest1288223-21kworker/u8:2+flush-179:021:15:260
12492529910396,5cyclictest1288223-21kworker/u8:2+events_unbound21:10:221
12492529910394,7cyclictest1349782-21kworker/u8:1+events_unbound00:25:031
12492529910293,6cyclictest1253972-21kworker/u8:3+events_unbound19:30:011
12492529910193,5cyclictest1297793-21kworker/u8:0+flush-179:022:00:211
12492529910185,4cyclictest1300978-21kworker/u8:1+events_unbound22:10:241
12492529910093,5cyclictest1266100-21kworker/u8:0+flush-179:020:05:001
12492529910093,4cyclictest1310706-21kworker/u8:0+flush-179:022:20:021
1249252999991,5cyclictest1279960-21kworker/u8:0+flush-179:021:00:221
1249250999992,5cyclictest1314177-21kworker/u8:1+flush-179:022:50:230
1249252999891,4cyclictest1262175-21kworker/u8:3+events_unbound20:15:131
1249252999789,6cyclictest1318431-21kworker/u8:3+flush-179:023:00:231
1249250999682,9cyclictest1320591-21kworker/u8:0+flush-179:023:14:590
1249250999484,7cyclictest1318431-21kworker/u8:3+flush-179:023:00:160
1249252999387,4cyclictest1294798-21kworker/u8:2+events_unbound22:30:241
1249252999386,6cyclictest1287269-21kworker/u8:1+flush-179:021:05:231
1249252999386,5cyclictest1262175-21kworker/u8:3+events_unbound20:10:161
1249252999384,6cyclictest1274858-21kworker/u8:1+events_unbound20:30:011
1249252999384,6cyclictest1274858-21kworker/u8:1+events_unbound20:30:001
1249252999085,3cyclictest1323752-21apt-get23:00:011
1249252999084,4cyclictest1318431-21kworker/u8:3+events_unbound22:45:251
1249250999080,7cyclictest1329064-21kworker/u8:1+flush-179:023:20:170
1249252998984,4cyclictest1329064-21kworker/u8:1+flush-179:023:24:551
1249252998980,7cyclictest1316011-21kworker/u8:0+events_unbound22:35:161
1249250998978,9cyclictest1252593-21apt-get19:20:130
1249250998879,6cyclictest1354508-21kworker/u8:0+flush-179:000:30:230
1249250998877,8cyclictest1272935-21kworker/u8:2+flush-179:020:45:190
1249252998780,5cyclictest1292158-21kworker/u8:1+flush-179:021:20:241
1249250998576,6cyclictest1332264-21kworker/u8:3+flush-179:023:40:250
1249250998575,7cyclictest1343431-21kworker/u8:2+flush-179:000:35:210
1249252998478,5cyclictest1343431-21kworker/u8:2+events_unbound00:15:241
1249250998473,8cyclictest1337049-21kworker/u8:1+flush-179:023:45:220
1249250998470,10cyclictest1294798-21kworker/u8:2+flush-179:022:25:250
1249252998377,4cyclictest1292158-21kworker/u8:1+flush-179:021:30:141
1249252998368,11cyclictest1213033-21systemd-journal20:10:001
1249250998376,4cyclictest1306004-21kworker/u8:3+flush-179:022:15:000
1249252998276,5cyclictest1272935-21kworker/u8:2+flush-179:020:40:181
1249252998274,5cyclictest1343431-21kworker/u8:2+events_unbound00:05:171
1249252998274,5cyclictest1343431-21kworker/u8:2+events_unbound00:05:161
1249252998271,9cyclictest1213033-21systemd-journal22:55:001
1249252998267,12cyclictest1213033-21systemd-journal23:20:011
1249250998172,6cyclictest1266967-21kworker/u8:1+events_unbound20:05:140
1249250998169,10cyclictest1346870-21apt-get00:10:110
1249250998165,8cyclictest1279960-21kworker/u8:0+events_unbound20:55:290
1249252998075,4cyclictest1332264-21kworker/u8:3+flush-179:023:35:301
1249252998073,5cyclictest1300936-21apt-get21:50:021
1249250998072,6cyclictest1297793-21kworker/u8:0+flush-179:021:55:140
1249252997971,5cyclictest1246091-21kworker/u8:1+flush-179:019:20:161
1249252997970,5cyclictest1259000-21kworker/u8:1+events_unbound19:40:001
1249250997971,6cyclictest1280011-21kworker/u8:3+flush-179:021:00:260
1249250997969,7cyclictest1253972-21kworker/u8:3+flush-179:019:35:200
1249252997769,5cyclictest1350070-21apt-get00:20:121
1249250997770,4cyclictest1292158-21kworker/u8:1+flush-179:021:25:200
1249252997672,3cyclictest1314177-21kworker/u8:1+flush-179:022:44:551
1249250997671,4cyclictest1245509-21kworker/u8:0+events_unbound19:25:260
1249250997666,7cyclictest1270131-21kworker/u8:0+flush-179:020:25:220
1249250997666,7cyclictest1270131-21kworker/u8:0+flush-179:020:25:220
1249250997562,10cyclictest1213033-21systemd-journal20:40:000
1249252997363,8cyclictest1213033-21systemd-journal20:50:001
1249250997360,10cyclictest1322397-21apt-get22:55:130
1249250997359,10cyclictest1351416-21apt-get00:25:010
1249252997063,5cyclictest1296128-21kworker/u8:3+events_unbound21:35:211
1249250997061,6cyclictest1275378-21kworker/u8:3+flush-179:020:30:220
1249250997061,6cyclictest1275378-21kworker/u8:3+flush-179:020:30:210
1249250996862,4cyclictest1262175-21kworker/u8:3+flush-179:020:00:180
1249250996858,7cyclictest1253972-21kworker/u8:3+flush-179:019:30:170
1249252996762,4cyclictest1296128-21kworker/u8:3+flush-179:021:40:261
1249252996759,6cyclictest1245509-21kworker/u8:0+flush-179:019:25:181
1249250996755,8cyclictest1349818-21latency_hist00:20:010
124925099670,66cyclictest0-21swapper/021:37:590
1249252996557,5cyclictest1262175-21kworker/u8:3+flush-179:019:55:181
1249250996559,4cyclictest714-21Xorg22:23:580
1249250996555,8cyclictest1288223-21kworker/u8:2+events_unbound21:20:160
1249250996357,4cyclictest1272935-21kworker/u8:2+events_unbound20:20:230
1249250996355,6cyclictest1279960-21kworker/u8:0+events_unbound20:55:000
1249250996349,8cyclictest1262175-21kworker/u8:3+events_unbound19:55:200
1249250996159,1cyclictest1337049-21kworker/u8:1+flush-179:023:50:140
1249250996154,5cyclictest1250964-21/usr/sbin/munin19:15:180
1249250996154,5cyclictest1250964-21/usr/sbin/munin19:15:180
1249252996055,4cyclictest1332264-21kworker/u8:3+events_unbound23:49:181
1249250996054,5cyclictest1332264-21kworker/u8:3+events_unbound00:00:190
1249250996054,4cyclictest1332264-21kworker/u8:3+events_unbound23:25:110
1249258995956,2cyclictest0-21swapper/322:13:593
1249250995952,5cyclictest1272935-21kworker/u8:2+events_unbound20:40:180
1249250995447,6cyclictest1297793-21kworker/u8:0+events_unbound22:00:260
1249250995347,5cyclictest1296128-21kworker/u8:3+events_unbound21:40:260
1249250995241,9cyclictest1268765-21apt-get20:10:120
4577091490,13ptp4l61490irq/134-eno1-TxRx-019:09:563
1249252994944,4cyclictest1294798-21kworker/u8:2+events_unbound22:25:231
1249252994739,6cyclictest1249113-21latency_hist19:10:011
1249250994634,10cyclictest1306515-21diskstats22:05:170
124925699430,41cyclictest0-21swapper/223:48:592
1249256994239,2cyclictest0-21swapper/221:51:592
1249250994136,4cyclictest1245509-21kworker/u8:0+flush-179:019:40:160
1249250993933,5cyclictest1259000-21kworker/u8:1+flush-179:019:50:240
124925699380,36cyclictest0-21swapper/223:13:002
124925699380,36cyclictest0-21swapper/222:02:592
124925699380,36cyclictest0-21swapper/221:02:592
124925699370,35cyclictest0-21swapper/220:00:592
1249258993634,1cyclictest0-21swapper/322:54:553
124925699360,1cyclictest0-21swapper/220:10:592
124925699360,1cyclictest0-21swapper/219:10:592
1249250993634,1cyclictest0-21swapper/023:05:010
1249258993533,1cyclictest0-21swapper/323:49:553
1249258993533,1cyclictest0-21swapper/323:19:553
1249258993533,1cyclictest0-21swapper/320:54:553
124925899350,34cyclictest0-21swapper/321:44:553
1249256993532,2cyclictest0-21swapper/223:27:002
1249258993432,1cyclictest0-21swapper/321:09:583
1249258993431,2cyclictest0-21swapper/321:37:593
1249256993432,1cyclictest0-21swapper/200:25:002
1249258993331,1cyclictest0-21swapper/323:38:593
1249258993331,1cyclictest0-21swapper/320:45:593
1249258993331,1cyclictest0-21swapper/319:21:583
124925899330,26cyclictest0-21swapper/322:36:593
1249256993329,2cyclictest0-21swapper/222:30:592
1249258993230,1cyclictest0-21swapper/322:26:593
1249258993230,1cyclictest0-21swapper/322:08:593
1249258993230,1cyclictest0-21swapper/300:38:593
1249258993229,2cyclictest0-21swapper/321:49:593
1249256993230,1cyclictest0-21swapper/220:54:582
1249256993229,2cyclictest0-21swapper/219:51:002
1249256993229,2cyclictest0-21swapper/200:05:592
1249256993229,2cyclictest0-21swapper/200:05:592
4577091310,7ptp4l441ktimers/323:29:593
4577091310,7ptp4l441ktimers/319:40:003
4577091310,5ptp4l61490irq/134-eno1-TxRx-000:10:003
4577091310,5ptp4l61490irq/134-eno1-TxRx-000:09:593
1249258993129,1cyclictest0-21swapper/323:52:593
1249258993129,1cyclictest0-21swapper/319:20:003
1249258993129,1cyclictest0-21swapper/319:20:003
1249256993129,1cyclictest0-21swapper/222:54:592
1249256993128,2cyclictest0-21swapper/223:35:592
1249256993128,2cyclictest0-21swapper/220:43:592
124925699310,29cyclictest0-21swapper/220:30:022
124925699310,29cyclictest0-21swapper/220:30:012
1249258993028,1cyclictest0-21swapper/323:07:593
1249258993028,1cyclictest0-21swapper/321:23:593
1249258993028,1cyclictest0-21swapper/320:31:003
1249258993028,1cyclictest0-21swapper/320:30:593
1249258993027,2cyclictest1302778-21turbostat21:55:003
1249258993027,2cyclictest0-21swapper/322:20:013
1249258993027,2cyclictest0-21swapper/300:00:013
1249258993027,2cyclictest0-21swapper/300:00:003
1249256993027,2cyclictest0-21swapper/222:20:022
1249256993027,2cyclictest0-21swapper/220:34:002
1249256993027,2cyclictest0-21swapper/220:33:592
1249256993027,2cyclictest0-21swapper/220:20:112
1249256993027,2cyclictest0-21swapper/219:55:132
1249256993027,2cyclictest0-21swapper/219:30:032
1249256993027,2cyclictest0-21swapper/200:25:142
1249256993026,2cyclictest0-21swapper/200:11:002
4577091290,7ptp4l61490irq/134-eno1-TxRx-019:15:003
1249258992927,1cyclictest0-21swapper/319:58:593
1249258992927,1cyclictest0-21swapper/300:00:133
1249258992926,2cyclictest0-21swapper/321:15:153
1249258992926,2cyclictest0-21swapper/319:30:143
124925899290,27cyclictest0-21swapper/322:20:013
124925899290,27cyclictest0-21swapper/321:55:133
124925899290,27cyclictest0-21swapper/319:30:013
1249256992926,2cyclictest0-21swapper/222:40:132
1249256992926,2cyclictest0-21swapper/220:55:152
124925699290,28cyclictest0-21swapper/219:20:152
124925699290,27cyclictest0-21swapper/223:05:152
124925699290,27cyclictest0-21swapper/222:45:142
124925699290,27cyclictest0-21swapper/222:25:132
124925699290,27cyclictest0-21swapper/200:15:132
124925699290,1cyclictest0-21swapper/221:10:142
4577091280,6ptp4l441ktimers/321:00:003
4577091280,6ptp4l441ktimers/320:39:553
4577091280,6ptp4l441ktimers/300:15:003
4577091280,4ptp4l441ktimers/320:10:013
1249258992826,1cyclictest0-21swapper/322:00:153
1249258992826,1cyclictest0-21swapper/319:45:143
1249258992825,2cyclictest0-21swapper/300:29:553
124925899280,27cyclictest0-21swapper/319:40:153
124925899280,27cyclictest0-21swapper/300:30:033
124925899280,26cyclictest0-21swapper/323:00:033
124925899280,26cyclictest0-21swapper/300:20:153
1249256992825,2cyclictest0-21swapper/221:26:592
1249256992825,2cyclictest0-21swapper/219:19:002
1249256992825,2cyclictest0-21swapper/219:18:592
124925699280,26cyclictest0-21swapper/219:42:592
124925699280,26cyclictest0-21swapper/219:25:582
4577091270,6ptp4l441ktimers/321:05:003
4577091270,5ptp4l441ktimers/323:34:553
4577091270,5ptp4l441ktimers/323:15:003
4577091270,4ptp4l441ktimers/322:45:003
1249258992725,1cyclictest0-21swapper/321:31:003
1249258992725,1cyclictest0-21swapper/321:14:553
1249258992725,1cyclictest0-21swapper/320:44:003
124925899270,26cyclictest0-21swapper/322:57:593
124925899270,26cyclictest0-21swapper/300:17:593
124925899270,1cyclictest0-21swapper/323:40:143
1249256992724,2cyclictest0-21swapper/221:23:002
1249256992723,2cyclictest0-21swapper/222:14:562
124925699270,25cyclictest0-21swapper/223:30:122
124925699270,25cyclictest0-21swapper/223:20:592
124925699270,1cyclictest0-21swapper/222:08:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-020:05:013
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:29:553
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:29:553
4577091260,5ptp4l441ktimers/322:49:553
4577091260,5ptp4l441ktimers/322:34:563
4577091260,5ptp4l441ktimers/319:55:003
4577091260,4ptp4l441ktimers/323:24:563
4577091260,4ptp4l441ktimers/320:09:553
1249258992624,1cyclictest0-21swapper/321:25:593
1249258992624,1cyclictest0-21swapper/320:23:593
124925899260,2cyclictest1271703-21turbostat20:20:013
1249256992624,1cyclictest0-21swapper/222:19:592
1249256992624,1cyclictest0-21swapper/200:34:592
1249256992522,2cyclictest0-21swapper/220:47:002
1249256992522,2cyclictest0-21swapper/219:48:592
124925699250,2cyclictest0-21swapper/221:55:132
124925699250,1cyclictest0-21swapper/220:19:592
1249256992422,1cyclictest0-21swapper/219:40:012
1249256992421,2cyclictest0-21swapper/221:49:552
124925699240,1cyclictest0-21swapper/223:04:592
1249256992321,1cyclictest0-21swapper/221:09:582
1249256992320,2cyclictest0-21swapper/223:57:002
1249256992320,2cyclictest0-21swapper/223:57:002
1249256992220,1cyclictest0-21swapper/200:37:592
1249256992018,1cyclictest0-21swapper/223:15:132
1249256992017,2cyclictest0-21swapper/222:57:592
1249256992017,2cyclictest0-21swapper/220:06:592
1249256991917,1cyclictest0-21swapper/223:52:582
1249256991916,2cyclictest0-21swapper/221:42:592
1249256991815,2cyclictest0-21swapper/221:17:592
1249256991714,2cyclictest0-21swapper/221:30:592
1249250991713,3cyclictest1249267-21latency_hist19:10:020
1249256991614,1cyclictest0-21swapper/221:39:592
1249256991614,1cyclictest0-21swapper/220:39:592
1249256991512,2cyclictest0-21swapper/222:37:592
1249256991411,2cyclictest0-21swapper/200:04:542
124925699129,2cyclictest0-21swapper/223:44:562
12492569930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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