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2026-03-06 - 22:24
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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 highest latencies:
System rackeslot2.osadl.org (updated Fri Mar 06, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168633621650,3sleep30-21swapper/312:36:493
14808182560,2sleep11480816-21cron10:40:011
1173604992420,2cyclictest0-21swapper/210:30:012
1173602992315,6cyclictest1633272-21fschecks_time12:06:470
1173602992315,1cyclictest1505313-21python310:51:590
117360299230,14cyclictest1596002-21munin-run11:45:000
2649091220,3phc2sys0-21swapper/309:12:193
1173604992220,1cyclictest0-21swapper/207:15:022
1173604992219,1cyclictest0-21swapper/211:35:002
1173602992219,2cyclictest1436967-21systemd-run10:15:010
1173602992214,7cyclictest1339-21udisksd10:38:530
1173604992118,1cyclictest0-21swapper/211:15:002
1173602992112,8cyclictest1553860-21gltestperf11:21:490
1173604992017,1cyclictest0-21swapper/211:46:572
1173604992017,1cyclictest0-21swapper/209:45:002
1173603992018,1cyclictest1218600-21dump-pmu-power07:45:001
1173602992018,1cyclictest1383411-21cron09:45:000
1173602992017,2cyclictest0-21swapper/011:50:010
2902298190,3rtkit-daemon1173600-21cyclictest08:31:190
2649091191,3phc2sys0-21swapper/311:33:583
1173604991917,1cyclictest0-21swapper/207:30:012
117360499191,12cyclictest0-21swapper/212:10:012
1173603991916,2cyclictest1410149-21apt-key10:00:011
1173603991916,2cyclictest1288-1atopacctd12:09:061
1173603991914,4cyclictest1587119-21idleruntime-cro11:40:001
1173603991912,6cyclictest1250264-21gltestperf08:11:481
1173603991912,3cyclictest1441590-21kthreadcore10:16:511
1173602991917,1cyclictest1291808-21apt08:46:460
1173602991916,2cyclictest1326-21systemd-logind10:05:000
1173602991912,6cyclictest1423358-21kthreadcore10:06:520
1173602991912,5cyclictest1403773-21kthreadcore09:56:500
1173602991911,7cyclictest1644395-21kthreadcore12:11:510
1173602991911,6cyclictest1173600-21cyclictest12:40:010
2902298180,2rtkit-daemon0-21swapper/012:28:030
2649091181,1phc2sys0-21swapper/309:20:293
2649091180,2phc2sys0-21swapper/309:18:443
1173604991815,1cyclictest0-21swapper/209:00:002
117360399189,1cyclictest491rcuog/209:20:321
117360399188,4cyclictest0-21swapper/110:56:451
1173603991815,2cyclictest1507541-21latency_hist10:55:001
1173603991815,2cyclictest1436960-21munin-plugin-st10:15:011
1173603991815,2cyclictest1290-21dbus-daemon11:05:011
1173603991815,2cyclictest1290-21dbus-daemon10:05:001
1173603991815,2cyclictest1200465-21apt-key07:30:011
1173603991815,2cyclictest0-21swapper/111:35:021
1173603991814,3cyclictest0-21swapper/110:45:001
1173603991812,2cyclictest134050irq/121-eno111:21:531
1173603991812,2cyclictest134050irq/121-eno109:51:511
1173602991815,2cyclictest1212603-21munin-plugin-st07:40:000
1173602991811,6cyclictest1609046-21kthreadcore11:51:530
2902298170,7rtkit-daemon1238036-21grep08:01:490
2649091173,2phc2sys0-21swapper/310:27:493
2649091170,1phc2sys0-21swapper/310:31:343
1173604991714,2cyclictest0-21swapper/211:30:012
1173604991714,1cyclictest0-21swapper/212:31:502
1173604991714,1cyclictest0-21swapper/212:18:512
1173604991714,1cyclictest0-21swapper/211:45:012
1173604991714,1cyclictest0-21swapper/211:06:582
1173604991714,1cyclictest0-21swapper/210:05:002
1173604991714,1cyclictest0-21swapper/209:51:572
1173604991714,1cyclictest0-21swapper/209:40:002
1173604991713,2cyclictest0-21swapper/212:01:492
1173603991714,2cyclictest1686070-21fschecks_time12:36:481
1173603991714,2cyclictest1309475-21sendmail09:00:001
1173603991714,2cyclictest1288-1atopacctd08:06:521
1173603991714,2cyclictest1230884-21apt-key07:55:001
117360299171,4cyclictest1256095-21/usr/sbin/munin08:16:470
1173602991714,2cyclictest1659738-21fschecks_time12:21:480
1173602991714,2cyclictest1516400-21perf11:00:000
1173602991714,2cyclictest1489744-21sh10:45:000
1173602991714,2cyclictest1326-21systemd-logind07:35:010
1173602991714,1cyclictest0-21swapper/007:30:020
1173602991710,6cyclictest1363347-21pmu-power09:31:560
2649091161,2phc2sys0-21swapper/309:54:553
117360499164,6cyclictest0-21swapper/212:00:012
1173604991614,1cyclictest0-21swapper/212:15:012
1173604991614,1cyclictest0-21swapper/209:11:512
1173604991614,1cyclictest0-21swapper/209:10:022
1173604991614,1cyclictest0-21swapper/207:25:012
1173604991613,1cyclictest0-21swapper/211:20:012
1173604991613,1cyclictest0-21swapper/210:06:462
1173604991613,1cyclictest0-21swapper/209:35:002
1173604991612,2cyclictest14102792sleep210:00:022
117360399166,4cyclictest0-21swapper/112:01:451
1173603991614,1cyclictest0-21swapper/108:30:011
1173603991613,2cyclictest1684188-21latency_hist12:35:011
1173603991613,2cyclictest1675484-21/usr/sbin/munin12:30:011
1173603991613,2cyclictest1536047-21fschecks_count11:11:481
1173603991613,2cyclictest1496262-21phc2sys-jitter10:46:541
1173603991613,2cyclictest1209988-21kthreadcore07:36:521
1173603991612,3cyclictest1544246-21aten_repower_en11:16:461
1173603991612,3cyclictest1467508-21kthreadcore10:31:531
1173603991612,3cyclictest1325882-21kthreadcore09:11:531
1173603991612,3cyclictest1290-21dbus-daemon12:25:021
117360399161,10cyclictest1188435-21aten2.4-expect07:21:461
117360299169,5cyclictest1394915-21kthreadcore09:51:510
117360299168,7cyclictest0-21swapper/010:26:460
117360299168,1cyclictest0-21swapper/012:16:480
117360299167,5cyclictest0-21swapper/010:16:460
117360299166,5cyclictest0-21swapper/011:36:430
117360299165,4cyclictest1254948-21sshd08:13:170
117360299164,6cyclictest0-21swapper/011:01:450
1173602991613,2cyclictest1551819-21systemd-run11:20:010
1173602991613,2cyclictest1447665-21fschecks_time10:21:480
1173602991613,2cyclictest1309641-21grep09:00:010
1173602991613,2cyclictest1261870-21cpuspeed_turbos08:21:480
1173602991613,2cyclictest1244778-21sed08:06:510
1173602991613,2cyclictest1232669-21kthreadcore07:56:510
1173602991613,2cyclictest1173600-21cyclictest09:15:170
117360299160,6cyclictest1346110-21timerwakeupswit09:21:570
2649091150,2phc2sys0-21swapper/312:20:203
2649091150,2phc2sys0-21swapper/312:19:553
2649091150,2phc2sys0-21swapper/310:03:593
117360499151,8cyclictest0-21swapper/208:40:012
117360499151,7cyclictest0-21swapper/210:50:012
1173604991513,1cyclictest0-21swapper/210:56:572
1173604991513,1cyclictest0-21swapper/210:55:022
1173604991513,1cyclictest0-21swapper/207:45:012
1173604991512,2cyclictest0-21swapper/207:51:522
1173604991512,1cyclictest0-21swapper/212:27:002
1173604991512,1cyclictest0-21swapper/209:26:532
1173604991511,2cyclictest0-21swapper/211:21:462
117360499150,4cyclictest16588232sleep212:21:222
117360399159,2cyclictest134050irq/121-eno112:16:461
117360399159,2cyclictest134050irq/121-eno111:46:521
117360399159,2cyclictest134050irq/121-eno109:31:531
1173603991513,1cyclictest1243018-21turbostat08:05:001
1173603991512,2cyclictest1616965-21kthreadcore11:56:521
1173603991512,2cyclictest1456847-21irqcore10:26:511
1173603991512,2cyclictest1448356-21kernelversion10:21:511
1173603991512,2cyclictest1376093-21tail09:41:461
1173603991512,2cyclictest1333328-21kthreadcore09:16:531
1173603991512,2cyclictest1297370-21latency_hist08:50:011
1173603991512,2cyclictest1288-1atopacctd07:56:451
1173603991512,2cyclictest1260342-21pmu-power08:16:541
1173603991511,3cyclictest1490101-21kworker/u16:3+nfsiod11:29:221
1173603991511,3cyclictest1421082-21fschecks_count10:06:481
1173603991511,3cyclictest1221813-21kthreadcore07:46:531
117360299156,3cyclictest2902298rtkit-daemon08:27:430
117360299155,9cyclictest1572456-21tr11:31:500
117360299153,7cyclictest0-21swapper/011:26:450
117360299152,5cyclictest0-21swapper/011:56:470
1173602991512,2cyclictest1626592-21kthreadcore12:01:530
1173602991512,2cyclictest1532017-21unixbench-2d11:06:580
1173602991512,2cyclictest1315850-21sshd09:05:200
1173602991512,2cyclictest1315626-21systemd-run09:05:010
1173602991512,2cyclictest1303680-21systemd-run08:55:020
1173602991512,2cyclictest1288522-21kthreadcore08:41:510
1173602991512,2cyclictest1180060-21irqcore07:15:010
1173602991511,3cyclictest1297472-21kworker/u16:0+nfsiod09:13:480
1173602991511,2cyclictest1187841-21grep07:20:000
2649091145,2phc2sys0-21swapper/312:01:483
2649091141,3phc2sys0-21swapper/308:36:453
2649091140,2phc2sys0-21swapper/312:28:213
2649091140,2phc2sys0-21swapper/312:10:563
2649091140,2phc2sys0-21swapper/311:13:563
2649091140,2phc2sys0-21swapper/310:58:453
2649091140,1phc2sys0-21swapper/311:20:253
2649091140,1phc2sys0-21swapper/309:40:303
1173604991412,1cyclictest0-21swapper/211:40:012
1173604991412,1cyclictest0-21swapper/210:42:472
1173604991412,1cyclictest0-21swapper/208:48:172
1173604991411,1cyclictest0-21swapper/211:51:522
1173604991411,1cyclictest0-21swapper/210:21:512
1173604991411,1cyclictest0-21swapper/210:16:502
1173604991411,1cyclictest0-21swapper/209:16:532
1173604991411,1cyclictest0-21swapper/207:36:472
1173604991410,2cyclictest0-21swapper/208:31:542
117360399149,1cyclictest15285261kthreadcore11:06:521
1173603991411,2cyclictest1641437-21aten_repower_fr12:11:441
1173603991411,2cyclictest1592478-21ssh11:41:511
1173603991411,2cyclictest134050irq/121-eno109:29:511
1173603991411,2cyclictest1321561-21diskmemload11:50:031
1173603991411,2cyclictest1316062-21aten_repower_fr09:06:461
1173603991411,2cyclictest1310641-21gltestperf09:01:501
1173603991411,2cyclictest1288-1atopacctd07:15:031
1173603991411,2cyclictest1274437-21head08:31:501
1173603991411,2cyclictest1173996-21aten_repower_cu07:11:461
1173603991410,3cyclictest1301922-21kthreadcore08:51:521
1173603991410,3cyclictest1282036-21kthreadcore08:36:511
1173603991410,3cyclictest1202219-21kthreadcore07:31:531
117360299148,5cyclictest1367328-21tail09:36:450
117360299147,4cyclictest1173600-21cyclictest12:31:520
117360299146,7cyclictest1352260-21tr09:26:530
117360299145,5cyclictest0-21swapper/010:31:520
1173602991412,1cyclictest1-21systemd07:46:460
1173602991411,2cyclictest1386169-21sort09:46:510
1173602991411,2cyclictest1173715-21systemd-run07:10:010
1173602991411,2cyclictest1173600-21cyclictest11:11:520
1173602991410,3cyclictest1463512-21kworker/u16:2+nfsiod10:48:100
1173602991410,3cyclictest0-21swapper/007:45:000
117360299140,9cyclictest1193929-21munin-run07:25:000
2649091130,5phc2sys0-21swapper/310:41:433
2649091130,2phc2sys0-21swapper/312:05:333
2649091130,2phc2sys0-21swapper/311:51:563
2649091130,2phc2sys0-21swapper/311:25:223
2649091130,2phc2sys0-21swapper/309:57:153
2649091130,2phc2sys0-21swapper/309:49:103
2649091130,2phc2sys0-21swapper/308:41:463
12181552130,2sleep30-21swapper/307:41:573
117360499131,4cyclictest0-21swapper/210:31:452
1173604991311,1cyclictest0-21swapper/212:40:012
1173604991311,1cyclictest0-21swapper/211:01:532
1173604991311,1cyclictest0-21swapper/210:36:542
1173604991311,1cyclictest0-21swapper/208:51:512
1173604991311,1cyclictest0-21swapper/208:45:012
1173604991311,1cyclictest0-21swapper/208:25:022
1173604991311,1cyclictest0-21swapper/208:11:482
1173604991311,1cyclictest0-21swapper/207:46:472
1173604991310,1cyclictest0-21swapper/210:11:462
1173604991310,1cyclictest0-21swapper/209:21:522
1173604991310,1cyclictest0-21swapper/208:16:522
1173604991310,1cyclictest0-21swapper/208:06:512
1173604991310,1cyclictest0-21swapper/207:56:512
117360499130,9cyclictest0-21swapper/209:01:462
117360499130,6cyclictest0-21swapper/207:10:012
117360399139,1cyclictest134050irq/121-eno108:41:441
117360399134,1cyclictest2902298rtkit-daemon08:22:051
117360399131,7cyclictest1369833-21tr09:36:511
1173603991310,2cyclictest1385563-21gltestperf09:46:481
117360299132,6cyclictest1226038-21irqcore07:51:500
1173602991310,2cyclictest1281001-21kthreadcore08:36:510
2649091123,3phc2sys0-21swapper/309:25:343
2649091123,2phc2sys0-21swapper/311:46:133
2649091121,4phc2sys0-21swapper/307:06:463
2649091120,3phc2sys0-21swapper/308:01:463
2649091120,2phc2sys0-21swapper/311:03:063
2649091120,2phc2sys0-21swapper/308:32:003
1173604991210,1cyclictest0-21swapper/209:45:242
1173604991210,1cyclictest0-21swapper/208:26:452
1173604991210,1cyclictest0-21swapper/208:01:532
1173604991210,1cyclictest0-21swapper/207:15:022
2649091112,2phc2sys0-21swapper/311:42:163
2649091111,2phc2sys0-21swapper/309:33:153
2649091110,2phc2sys0-21swapper/311:56:513
2649091110,2phc2sys0-21swapper/310:23:213
2649091110,2phc2sys0-21swapper/310:11:423
2649091110,2phc2sys0-21swapper/309:36:443
2649091110,1phc2sys0-21swapper/308:18:173
2649091110,1phc2sys0-21swapper/307:49:033
11958402110,2sleep30-21swapper/307:26:503
117360499119,1cyclictest0-21swapper/207:31:022
2649091105,2phc2sys0-21swapper/307:11:463
2649091101,3phc2sys0-21swapper/308:30:013
2649091101,2phc2sys0-21swapper/311:07:583
2649091101,2phc2sys0-21swapper/310:35:033
2649091101,2phc2sys0-21swapper/310:19:553
2649091101,2phc2sys0-21swapper/310:05:213
2649091101,2phc2sys0-21swapper/307:31:563
2649091100,2phc2sys0-21swapper/312:32:303
2649091100,2phc2sys0-21swapper/311:35:513
2649091100,2phc2sys0-21swapper/311:16:323
2649091100,2phc2sys0-21swapper/310:51:103
2649091100,2phc2sys0-21swapper/310:47:093
2649091100,2phc2sys0-21swapper/309:06:543
2649091100,2phc2sys0-21swapper/308:21:543
2649091100,2phc2sys0-21swapper/307:56:443
2649091100,2phc2sys0-21swapper/307:36:533
117360399105,3cyclictest1-21systemd07:10:011
264909191,2phc2sys0-21swapper/308:56:523
264909191,2phc2sys0-21swapper/308:47:023
264909191,2phc2sys0-21swapper/308:11:523
264909191,2phc2sys0-21swapper/307:16:053
264909190,2phc2sys0-21swapper/309:01:493
264909190,2phc2sys0-21swapper/308:50:233
264909190,2phc2sys0-21swapper/308:06:473
264909190,2phc2sys0-21swapper/307:55:003
264909190,2phc2sys0-21swapper/307:21:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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