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2026-06-15 - 23:50
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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 Mon Jun 15, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135872199142132,6cyclictest1420048-21latency_hist22:20:010
135872399130119,8cyclictest1464107-21latency_hist00:35:011
135872199128117,8cyclictest1213033-21systemd-journal23:40:010
135872199128117,8cyclictest1213033-21systemd-journal20:50:000
135872399126114,8cyclictest1460926-21latency_hist00:25:001
135872199124109,12cyclictest1213033-21systemd-journal19:50:010
135872399116106,7cyclictest1410230-21latency_hist21:50:011
135872399115104,7cyclictest1373056-21latency_hist19:55:011
135872199115106,6cyclictest1403865-21latency_hist21:30:000
13587219910999,8cyclictest1368281-21latency_hist19:40:010
135872199108100,5cyclictest1395378-21kworker/u8:2+flush-179:021:15:230
13587239910798,6cyclictest1363524-21latency_hist19:25:011
13587239910696,7cyclictest1360324-21latency_hist19:15:011
13587239910695,7cyclictest1408646-21latency_hist21:45:001
13587239910593,9cyclictest1449459-21kworker/u8:0+flush-179:000:00:011
13587219910596,7cyclictest1429588-21latency_hist22:50:010
13587219910594,8cyclictest1413681-21latency_hist22:00:020
13587219910492,9cyclictest1402021-21latency_hist21:25:010
13587219910092,5cyclictest1384303-21kworker/u8:1+flush-179:020:50:170
1358723999989,7cyclictest510-21rs:main1
1358721999685,8cyclictest1341276-21kworker/u8:2+flush-179:019:30:010
1358721999685,8cyclictest1341276-21kworker/u8:2+flush-179:019:30:010
1358723999380,9cyclictest1213033-21systemd-journal00:20:011
1358721999384,7cyclictest1428003-21latency_hist22:45:020
1358723999183,5cyclictest1393796-21latency_hist21:00:011
1358721999184,4cyclictest1447357-21latency_hist23:45:000
1358721999179,9cyclictest1213033-21systemd-journal23:30:000
135872199911,88cyclictest1-21systemd00:03:590
1358723999085,4cyclictest1455878-21kworker/u8:1+flush-179:000:10:251
1358721998982,4cyclictest1406114-21kworker/u8:0+flush-179:022:10:220
1358721998881,5cyclictest1447593-21kworker/u8:2+events_unbound00:00:010
1358721998879,6cyclictest1427439-21kworker/u8:0+flush-179:022:55:160
1358721998674,9cyclictest1431187-21apt-get22:55:000
1358723998373,7cyclictest1213033-21systemd-journal20:35:001
1358723998371,10cyclictest1379727-21apt-get20:15:131
1358723998371,10cyclictest1379727-21apt-get20:15:131
1358721998375,6cyclictest1398567-21latency_hist21:15:010
1358721998273,7cyclictest1447593-21kworker/u8:2+flush-179:000:20:240
1358721998272,8cyclictest1381338-21apt-get20:20:120
1358723998175,5cyclictest1393770-21kworker/u8:0+flush-179:021:15:011
1358723998171,8cyclictest1373310-21apt-get19:55:121
1358723998170,8cyclictest1376304-21latency_hist20:05:011
1358723998073,5cyclictest1462746-21kworker/u8:1+flush-179:000:35:261
1358723998069,9cyclictest1213033-21systemd-journal19:20:011
1358723997969,7cyclictest1449380-21cat23:50:011
1358723997869,7cyclictest1404121-21apt-get21:30:121
1358721997771,4cyclictest1381118-21kworker/u8:2+flush-179:020:35:230
1358723997667,7cyclictest1213033-21systemd-journal22:26:311
1358721997566,7cyclictest1437777-21kworker/u8:0+flush-179:023:30:210
1358721997564,8cyclictest1410727-21kworker/u8:3+flush-179:021:50:230
1358721997563,8cyclictest1213033-21systemd-journal19:35:000
1358721997468,4cyclictest1418428-21kworker/u8:1+events_unbound22:30:010
1358721997465,7cyclictest1341276-21kworker/u8:2+events_unbound19:40:230
1358721997462,8cyclictest1455878-21kworker/u8:1+flush-179:000:10:230
1358721997364,6cyclictest1369919-21kworker/u8:0+flush-179:020:05:240
1358721997360,8cyclictest1429623-21kworker/u8:1+flush-179:023:15:210
1358721997263,5cyclictest1449459-21kworker/u8:0+flush-179:000:30:200
1358723997164,5cyclictest1213033-21systemd-journal21:25:311
1358721997164,5cyclictest1439365-21kworker/u8:2+flush-179:023:20:160
1358721997164,4cyclictest1354918-21kworker/u8:0+flush-179:019:15:160
1358721997160,7cyclictest1427439-21kworker/u8:0+flush-179:023:00:160
1358721997158,6cyclictest1368265-21kworker/u8:1+events_unbound19:50:200
1358723997066,3cyclictest1447593-21kworker/u8:2+flush-179:023:48:131
1358723997059,8cyclictest1378429-21diskstats20:10:141
1358723997057,11cyclictest1429623-21kworker/u8:1+events_unbound23:05:001
1358721996866,1cyclictest1393770-21kworker/u8:0+events_unbound21:05:240
1358721996862,4cyclictest1449459-21kworker/u8:0+flush-179:000:15:220
1358721996861,5cyclictest1394064-21apt-get21:00:120
1358723996757,7cyclictest1416857-21latency_hist22:10:011
1358721996762,3cyclictest1465667-21sshd00:35:320
1358721996753,10cyclictest1213033-21systemd-journal20:05:000
1358723996661,4cyclictest1393770-21kworker/u8:0+flush-179:021:00:261
1358721996663,1cyclictest1406114-21kworker/u8:0+flush-179:021:35:220
135872899652,61cyclictest0-21swapper/223:05:592
1358723996555,8cyclictest1395378-21kworker/u8:2+flush-179:021:20:001
1358723996555,8cyclictest1213033-21systemd-journal20:40:001
1358721996562,2cyclictest1406114-21kworker/u8:0+flush-179:022:00:220
1358721996556,6cyclictest1397025-21kworker/u8:1+flush-179:021:40:150
1358721996554,8cyclictest1213033-21systemd-journal22:20:160
1358721996459,4cyclictest1397025-21kworker/u8:1+flush-179:021:35:000
1358721996459,3cyclictest1418428-21kworker/u8:1+flush-179:022:30:220
1358721996450,8cyclictest1447593-21kworker/u8:2+flush-179:000:25:220
1358723996359,3cyclictest1410727-21kworker/u8:3+flush-179:021:50:281
1358729996260,1cyclictest0-21swapper/323:27:593
135872899620,60cyclictest0-21swapper/219:32:592
1358723996154,5cyclictest1412329-21apt-get21:55:101
1358723996152,6cyclictest1213033-21systemd-journal19:37:321
1358721996155,4cyclictest1449459-21kworker/u8:0+flush-179:000:05:140
1358723996052,6cyclictest1382668-21latency_hist20:25:011
1358721996051,6cyclictest1368265-21kworker/u8:1+flush-179:019:55:140
1358721995955,2cyclictest1406114-21kworker/u8:0+events_unbound21:45:260
1358721995952,5cyclictest1429623-21kworker/u8:1+flush-179:023:10:190
1358721995951,6cyclictest1384303-21kworker/u8:1+flush-179:020:40:250
1358721995951,4cyclictest1418428-21kworker/u8:1+flush-179:022:35:260
1358721995849,6cyclictest1447593-21kworker/u8:2+flush-179:023:45:230
1358728995753,2cyclictest0-21swapper/220:17:592
1358728995753,2cyclictest0-21swapper/220:17:592
1358723995650,4cyclictest1449459-21kworker/u8:0+flush-179:000:03:591
1358723995650,4cyclictest1419479-21ntpq22:15:211
1358723995548,6cyclictest1429623-21kworker/u8:1+flush-179:023:00:011
1358723995547,6cyclictest1213033-21systemd-journal22:42:321
1358721995546,6cyclictest1410727-21kworker/u8:3+flush-179:022:05:230
1358721995445,6cyclictest1381118-21kworker/u8:2+flush-179:020:25:250
1358721995443,7cyclictest321-21hwrng20:34:590
1358721995441,10cyclictest1384303-21kworker/u8:1+flush-179:020:59:590
1358723995246,5cyclictest1420096-21kworker/u8:3+events_unbound22:50:201
1358721995239,4cyclictest1341276-21kworker/u8:2+flush-179:019:20:230
1358723995042,6cyclictest1406114-21kworker/u8:0+flush-179:022:20:221
1358723995041,7cyclictest1436212-21latency_hist23:10:011
135872199501,5cyclictest1360328-21munin-run19:15:010
1358723994937,9cyclictest1213033-21systemd-journal22:30:001
1358721994945,2cyclictest1368265-21kworker/u8:1+flush-179:020:10:120
1358721994943,4cyclictest1447593-21kworker/u8:2+flush-179:023:50:150
1358721994941,6cyclictest1429623-21kworker/u8:1+flush-179:023:05:150
4577091480,13ptp4l441ktimers/319:10:003
1358728994818,1cyclictest0-21swapper/219:48:592
1358723994840,6cyclictest1213033-21systemd-journal21:37:231
1358721994836,9cyclictest1213033-21systemd-journal20:20:010
1358721994836,9cyclictest1213033-21systemd-journal20:20:010
1358723994740,4cyclictest1415269-21latency_hist22:05:011
1358723994738,7cyclictest1396981-21latency_hist21:10:011
1358723994737,8cyclictest1446028-21apt-get23:40:111
1358723994737,8cyclictest1369884-21latency_hist19:45:011
1358723994737,8cyclictest1213033-21systemd-journal23:15:011
1358723994637,7cyclictest1439365-21kworker/u8:2+flush-179:023:20:231
135872999440,42cyclictest1361939-21turbostat19:20:003
1358723994333,8cyclictest1383208-21diskstats20:25:161
1358723994238,3cyclictest1400458-21kworker/u8:3+events_unbound21:21:031
1358723994233,7cyclictest1213033-21systemd-journal22:15:001
135872999410,39cyclictest1428014-21turbostat22:45:013
135872999410,39cyclictest1371483-21turbostat19:50:003
135872899410,1cyclictest0-21swapper/220:07:592
1358723994133,6cyclictest1428257-21apt-get22:45:101
1358729994035,3cyclictest1452393-21turbostat00:00:003
135872999400,38cyclictest1444171-21turbostat23:35:013
135872999400,32cyclictest1403876-21turbostat21:30:003
1358723994036,3cyclictest1437777-21kworker/u8:0+events_unbound23:35:291
135872999390,4cyclictest1431188-21turbostat22:54:593
135872999390,38cyclictest1390621-21turbostat20:50:003
135872999390,37cyclictest1384271-21turbostat20:30:003
135872899390,37cyclictest0-21swapper/221:05:592
1358723993933,5cyclictest484-21dbus-daemon19:50:011
1358729993832,5cyclictest1433026-21turbostat23:00:003
135872999380,3cyclictest1407071-21turbostat21:44:563
135872999380,1cyclictest0-21swapper/320:24:593
1358728993835,2cyclictest0-21swapper/219:35:592
1358728993834,2cyclictest0-21swapper/200:30:002
135872899380,36cyclictest0-21swapper/223:16:592
135872899380,35cyclictest0-21swapper/221:05:002
135872399384,32cyclictest1441247-21apt-get23:25:131
1358723993834,3cyclictest1439406-21munin-plugin-st23:19:591
1358729993735,1cyclictest0-21swapper/322:47:003
1358729993735,1cyclictest0-21swapper/321:31:593
1358729993735,1cyclictest0-21swapper/321:19:593
1358729993730,5cyclictest1423236-21turbostat22:30:003
1358728993735,1cyclictest0-21swapper/222:40:002
1358728993733,2cyclictest0-21swapper/223:13:592
135872899370,2cyclictest0-21swapper/221:32:592
1358723993733,4cyclictest1341276-21kworker/u8:2+events_unbound19:33:321
1358729993630,5cyclictest1373060-21turbostat19:55:013
1358729993629,6cyclictest1465715-21turbostat00:40:003
1358729993629,5cyclictest1392209-21turbostat20:55:003
135872999360,35cyclictest0-21swapper/323:08:583
135872999360,35cyclictest0-21swapper/322:23:583
135872999360,1cyclictest0-21swapper/319:23:593
1358728993633,2cyclictest0-21swapper/220:44:002
135872899360,1cyclictest0-21swapper/223:39:592
135872899360,1cyclictest0-21swapper/220:53:592
135872899360,1cyclictest0-21swapper/200:39:592
1358729993533,1cyclictest0-21swapper/300:10:593
1358729993528,5cyclictest1381078-21turbostat20:20:013
1358729993528,5cyclictest1381078-21turbostat20:20:013
135872999350,1cyclictest0-21swapper/300:19:553
135872899350,33cyclictest0-21swapper/223:31:592
135872899350,1cyclictest0-21swapper/222:00:012
1358723993528,5cyclictest1213033-21systemd-journal22:38:331
1358723993525,9cyclictest1454050-21apt-get00:05:021
1358729993432,1cyclictest0-21swapper/319:37:593
1358728993431,2cyclictest0-21swapper/222:21:582
1358728993431,2cyclictest0-21swapper/221:18:582
1358728993431,2cyclictest0-21swapper/220:28:002
135872399341,5cyclictest2304-21lightdm-gtk-gre19:25:101
135872399341,5cyclictest2304-21lightdm-gtk-gre19:25:101
1358721993429,3cyclictest1358876-21latency_hist19:10:020
231999330,22rtkit-daemon1358183-21awk19:05:321
1358728993331,1cyclictest0-21swapper/223:49:592
1358728993329,2cyclictest0-21swapper/221:39:552
135872899330,31cyclictest0-21swapper/221:49:592
1358723993328,4cyclictest1390651-21kworker/u8:3+events_unbound20:53:031
1358729993229,2cyclictest0-21swapper/323:52:583
1358729993226,4cyclictest1420060-21turbostat22:20:003
1358729993225,5cyclictest1365115-21turbostat19:30:013
1358729993225,5cyclictest1365115-21turbostat19:30:013
1358728993228,2cyclictest0-21swapper/220:39:552
135872399321,3cyclictest0-21swapper/123:30:111
1358729993129,1cyclictest0-21swapper/323:44:593
1358729993129,1cyclictest0-21swapper/322:03:583
1358729993128,2cyclictest0-21swapper/321:50:593
1358728993129,1cyclictest0-21swapper/221:45:002
135872899310,29cyclictest0-21swapper/200:17:592
135872899310,1cyclictest0-21swapper/219:27:592
135872899310,1cyclictest0-21swapper/219:27:592
1358723993127,3cyclictest1447593-21kworker/u8:2+events_unbound00:25:411
1358729993028,1cyclictest0-21swapper/323:04:003
1358729993027,2cyclictest0-21swapper/320:07:593
1358729993027,2cyclictest0-21swapper/319:32:593
1358729993024,5cyclictest1418452-21turbostat22:15:003
135872999300,28cyclictest0-21swapper/322:05:143
1358728993028,1cyclictest0-21swapper/220:04:542
1358728993027,2cyclictest0-21swapper/222:55:012
1358728993027,2cyclictest0-21swapper/222:10:132
1358728993027,2cyclictest0-21swapper/220:45:112
1358728993027,2cyclictest0-21swapper/200:12:002
1358728993027,2cyclictest0-21swapper/200:07:582
135872899302,26cyclictest0-21swapper/223:56:592
135872899300,28cyclictest0-21swapper/221:25:032
1358729992927,1cyclictest0-21swapper/321:45:143
1358729992926,2cyclictest0-21swapper/321:00:133
1358729992926,2cyclictest0-21swapper/320:55:583
1358729992926,2cyclictest0-21swapper/319:40:123
135872999290,27cyclictest0-21swapper/319:55:133
1358728992926,2cyclictest0-21swapper/219:57:002
1358728992926,2cyclictest0-21swapper/219:21:592
1358728992926,2cyclictest0-21swapper/200:00:142
135872899290,28cyclictest0-21swapper/223:20:132
135872899290,28cyclictest0-21swapper/222:00:122
135872899290,27cyclictest0-21swapper/223:50:032
135872899290,27cyclictest0-21swapper/222:05:142
135872899290,27cyclictest0-21swapper/221:50:012
135872899290,27cyclictest0-21swapper/221:15:022
135872899290,27cyclictest0-21swapper/219:40:122
135872899290,27cyclictest0-21swapper/200:30:122
1358723992920,2cyclictest171rcu_preempt20:49:321
135872399290,28cyclictest0-21swapper/120:05:141
1358729992826,1cyclictest0-21swapper/323:18:003
1358729992826,1cyclictest0-21swapper/322:37:583
1358729992826,1cyclictest0-21swapper/322:32:593
1358729992826,1cyclictest0-21swapper/300:25:143
135872999280,27cyclictest0-21swapper/321:55:133
135872999280,26cyclictest0-21swapper/323:10:113
135872999280,26cyclictest0-21swapper/320:40:123
135872999280,26cyclictest0-21swapper/320:00:143
135872999280,21cyclictest0-21swapper/300:00:023
135872999280,1cyclictest0-21swapper/323:20:123
1358728992825,2cyclictest0-21swapper/222:45:132
1358728992825,2cyclictest0-21swapper/219:51:592
135872899280,26cyclictest0-21swapper/222:55:022
1358729992725,1cyclictest0-21swapper/321:38:593
1358729992725,1cyclictest0-21swapper/320:36:593
1358729992724,2cyclictest0-21swapper/300:07:003
135872999270,26cyclictest0-21swapper/321:14:593
1358728992723,2cyclictest0-21swapper/223:44:552
1358728992723,2cyclictest0-21swapper/220:14:552
135872899270,19cyclictest0-21swapper/220:57:002
4577091260,6ptp4l61490irq/134-eno1-TxRx-023:50:003
4577091260,6ptp4l441ktimers/321:10:013
4577091260,6ptp4l441ktimers/300:24:563
1358729992624,1cyclictest0-21swapper/323:39:553
1358728992624,1cyclictest0-21swapper/223:28:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-000:35:003
4577091250,5ptp4l441ktimers/321:25:013
4577091250,5ptp4l441ktimers/319:14:553
1358729992523,1cyclictest0-21swapper/320:10:583
135872999250,24cyclictest0-21swapper/320:32:593
1358728992522,2cyclictest0-21swapper/200:24:552
1358728992521,2cyclictest0-21swapper/223:01:592
1358728992320,2cyclictest0-21swapper/222:42:592
1358728992320,2cyclictest0-21swapper/222:31:002
1358728992219,2cyclictest0-21swapper/220:21:592
1358728992118,2cyclictest0-21swapper/219:16:592
1358728992018,1cyclictest0-21swapper/221:20:102
1358728992018,1cyclictest0-21swapper/219:11:592
1358728991917,1cyclictest0-21swapper/222:19:562
1358728991814,2cyclictest0-21swapper/220:34:552
135872899129,2cyclictest0-21swapper/222:27:592
13587289920,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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