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2026-04-27 - 04:19
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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 Mon Apr 27, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122030921650,2sleep30-21swapper/319:15:443
1206141993431,2cyclictest1570716-21idleruntime-cro23:30:001
1206140992919,6cyclictest1405008-21munin-run21:40:000
1206142992522,1cyclictest0-21swapper/222:20:012
1206142992421,1cyclictest0-21swapper/200:00:002
1206140992420,2cyclictest1555965-21grep23:20:010
1206142992320,1cyclictest0-21swapper/223:25:002
1206141992320,2cyclictest1-21systemd23:15:001
120614199230,21cyclictest1495597-21cron22:40:001
383433398220,6rtkit-daemon3851702-21mta-sts-daemon23:23:520
1206142992219,2cyclictest0-21swapper/219:15:022
1206142992218,2cyclictest1457512-21turbostat22:15:002
1206141992218,3cyclictest1-21systemd21:00:001
1206140992212,6cyclictest1671578-21kthreadcore00:35:420
1206140992118,2cyclictest1600717-21apt-key23:50:000
1206140992118,2cyclictest1525719-21apt-key23:00:000
1206140992117,3cyclictest3841051-21wpa_supplicant19:25:420
383433398200,4rtkit-daemon3851705-21mta-sts-daemon20:41:551
12363052200,1sleep10-21swapper/119:30:411
1206142992018,1cyclictest0-21swapper/219:20:012
1206142992017,1cyclictest0-21swapper/222:25:462
1206142992016,2cyclictest0-21swapper/222:05:472
1206142992016,2cyclictest0-21swapper/220:10:002
1206141992017,2cyclictest1510708-21cut22:50:001
1206141992014,2cyclictest1465138-21kworker/1:1+events_freezable22:57:311
120614099209,2cyclictest0-21swapper/022:40:340
120614099208,6cyclictest0-21swapper/022:25:020
120614099207,4cyclictest3851704-21mta-sts-daemon22:37:340
1206140992017,2cyclictest1290-21dbus-daemon19:15:020
1206140992012,7cyclictest0-21swapper/021:30:000
383433398190,3rtkit-daemon3851703-21mta-sts-daemon23:10:190
1206142991917,1cyclictest0-21swapper/222:55:342
1206142991917,1cyclictest0-21swapper/222:35:022
1206142991916,1cyclictest0-21swapper/221:25:452
1206142991916,1cyclictest0-21swapper/220:55:002
1206142991916,1cyclictest0-21swapper/219:23:542
1206142991916,1cyclictest0-21swapper/200:40:002
1206142991916,1cyclictest0-21swapper/200:15:022
1206141991916,2cyclictest3851702-21mta-sts-daemon19:23:541
1206141991916,2cyclictest1601121-21latency_hist23:50:021
1206141991916,2cyclictest0-21swapper/120:25:011
120614099199,6cyclictest0-21swapper/022:15:350
120614099199,5cyclictest0-21swapper/000:00:480
120614099198,6cyclictest0-21swapper/023:00:460
1206140991916,2cyclictest3851698-21mta-sts-daemon23:25:410
1206140991916,2cyclictest1631185-21apt-key00:10:010
1206140991915,2cyclictest1397628-21munin-plugin-st21:35:010
1206140991912,6cyclictest0-21swapper/021:15:010
1206140991911,5cyclictest1642041-21kthreadcore00:15:420
1206140991911,5cyclictest1581165-21kthreadcore23:35:400
120614099190,3cyclictest1539963-21ssh23:07:230
2649191180,1ptp4l0-21swapper/320:10:423
2649091181,2phc2sys0-21swapper/321:05:463
2649091180,2phc2sys0-21swapper/322:32:403
1206142991815,1cyclictest0-21swapper/223:40:012
1206142991815,1cyclictest0-21swapper/220:35:002
1206142991815,1cyclictest0-21swapper/220:05:002
1206142991815,1cyclictest0-21swapper/200:10:012
120614199187,5cyclictest0-21swapper/123:53:461
1206141991815,2cyclictest1500439-21kthreadcore22:40:421
1206141991815,2cyclictest1488154-21awk22:35:001
1206141991815,2cyclictest1315531-21sh20:35:011
1206141991813,4cyclictest1302261-21GUsbEventThread21:06:481
1206141991811,3cyclictest1659426-21rt-features00:25:461
1206141991810,4cyclictest3827634-1atopacctd23:37:481
120614099189,5cyclictest0-21swapper/000:30:020
120614099188,6cyclictest0-21swapper/022:50:340
1206140991815,2cyclictest1488176-21cut22:35:000
1206140991815,2cyclictest1239965-21idleruntime-cro19:35:010
1206140991814,2cyclictest0-21swapper/020:40:000
2649091170,2phc2sys0-21swapper/323:45:523
2649091170,2phc2sys0-21swapper/321:47:523
2649091170,2phc2sys0-21swapper/300:25:333
2649091170,2phc2sys0-21swapper/300:16:583
1206142991715,1cyclictest0-21swapper/223:40:352
1206142991715,1cyclictest0-21swapper/221:15:402
1206142991715,1cyclictest0-21swapper/220:20:012
1206142991714,1cyclictest0-21swapper/223:10:012
1206142991714,1cyclictest0-21swapper/222:40:462
1206142991714,1cyclictest0-21swapper/200:25:432
1206142991714,1cyclictest0-21swapper/200:20:022
1206142991714,1cyclictest0-21swapper/200:00:482
120614299171,10cyclictest0-21swapper/221:00:012
120614199179,2cyclictest501rcuop/222:51:591
1206141991714,2cyclictest1634599-21kthreadcore00:10:411
1206141991714,2cyclictest1616095-21runrttasks00:00:011
1206141991714,2cyclictest1442709-21sh22:05:011
1206141991711,2cyclictest1526579-21cpuspeed_turbos23:00:351
120614199170,5cyclictest501rcuop/221:50:341
120614099178,5cyclictest0-21swapper/023:50:420
120614099178,5cyclictest0-21swapper/000:00:020
120614099176,6cyclictest0-21swapper/021:49:060
1206140991714,2cyclictest3851875-21systemd-journal20:00:010
1206140991714,2cyclictest1593223-21/usr/sbin/munin23:45:000
1206140991714,2cyclictest1359727-21/usr/sbin/munin21:10:010
1206140991714,2cyclictest1302801-21sh20:25:010
1206140991714,2cyclictest0-21swapper/022:49:200
1206140991713,3cyclictest1578353-21kworker/u16:2+nfsiod00:10:450
1206140991713,2cyclictest0-21swapper/020:10:010
120614099170,12cyclictest1264975-21perf19:55:000
2649091160,2phc2sys0-21swapper/323:59:453
2649091160,2phc2sys0-21swapper/322:57:453
2649091160,2phc2sys0-21swapper/300:08:153
120614299161,5cyclictest0-21swapper/219:40:012
1206142991614,1cyclictest0-21swapper/223:15:012
1206142991614,1cyclictest0-21swapper/222:50:012
1206142991614,1cyclictest0-21swapper/221:10:022
1206142991614,1cyclictest0-21swapper/220:49:292
1206142991614,1cyclictest0-21swapper/219:10:012
1206142991613,1cyclictest0-21swapper/223:45:382
1206142991613,1cyclictest0-21swapper/223:00:452
1206142991613,1cyclictest0-21swapper/222:00:472
1206142991613,1cyclictest0-21swapper/222:00:002
120614199168,3cyclictest501rcuop/219:54:161
120614199164,5cyclictest0-21swapper/122:10:471
1206141991613,2cyclictest3852376-21udisksd21:03:581
1206141991613,2cyclictest3851703-21mta-sts-daemon23:30:471
1206141991613,2cyclictest3834332-21rtkit-daemon23:22:121
1206141991613,2cyclictest1672144-21kthreadcore00:35:421
1206141991613,2cyclictest0-21swapper/120:30:021
1206141991613,2cyclictest0-21swapper/119:15:011
1206141991612,3cyclictest3851703-21mta-sts-daemon00:05:421
1206141991612,3cyclictest1417203-21kthreadcore21:45:411
1206141991612,3cyclictest1232564-21kthreadcore19:25:431
1206141991610,2cyclictest134050irq/121-eno121:11:551
1206141991610,1cyclictest601rcuop/322:09:071
120614099168,4cyclictest1309445-21tail20:30:350
120614099167,5cyclictest1369507-21kthreadcore21:15:410
120614099167,5cyclictest0-21swapper/000:20:380
120614099167,4cyclictest1206138-21cyclictest00:31:120
120614099167,4cyclictest0-21swapper/022:10:020
120614099165,5cyclictest1-21systemd21:25:010
1206140991613,2cyclictest3851705-21mta-sts-daemon19:40:450
1206140991613,2cyclictest1439962-21kthreadcore22:00:430
1206140991613,2cyclictest1412582-21sh21:45:000
1206140991612,2cyclictest1427746-21munin-run21:55:010
1206140991610,5cyclictest3851705-21mta-sts-daemon22:10:240
2649091150,2phc2sys0-21swapper/322:48:413
2649091150,2phc2sys0-21swapper/322:35:203
2649091150,2phc2sys0-21swapper/322:09:413
2649091150,2phc2sys0-21swapper/321:40:383
2649091150,2phc2sys0-21swapper/321:16:153
120614299154,7cyclictest0-21swapper/223:25:342
1206142991513,1cyclictest0-21swapper/221:40:342
1206142991513,1cyclictest0-21swapper/221:15:012
1206142991513,1cyclictest0-21swapper/220:40:452
1206142991513,1cyclictest0-21swapper/220:10:412
1206142991513,1cyclictest0-21swapper/219:45:402
1206142991512,1cyclictest0-21swapper/223:55:002
1206142991512,1cyclictest0-21swapper/221:50:342
1206142991512,1cyclictest0-21swapper/221:00:392
1206142991512,1cyclictest0-21swapper/219:55:382
1206142991512,1cyclictest0-21swapper/219:30:342
1206142991512,1cyclictest0-21swapper/200:30:452
120614199158,3cyclictest1649466-21kthreadcore00:20:401
120614199153,5cyclictest36-21ksoftirqd/122:16:561
1206141991513,1cyclictest0-21swapper/121:45:001
1206141991512,2cyclictest3851704-21mta-sts-daemon21:26:361
1206141991512,2cyclictest3851704-21mta-sts-daemon20:50:381
1206141991512,2cyclictest3851704-21mta-sts-daemon00:15:411
1206141991512,2cyclictest3851703-21mta-sts-daemon21:55:361
1206141991512,2cyclictest1663396-21kthreadcore00:30:411
1206141991512,2cyclictest1617874-21kthreadcore00:00:411
1206141991512,2cyclictest1550508-21kthreadcore23:15:401
1206141991512,2cyclictest1480368-21grep22:30:001
1206141991512,2cyclictest1397478-21latency_hist21:35:001
1206141991512,2cyclictest1374504-21sh21:19:381
1206141991512,2cyclictest1321366-21unixbench_singl20:35:461
1206141991512,2cyclictest1293161-21kthreadcore20:15:411
1206141991512,2cyclictest1278486-21gltestperf20:05:371
1206141991511,3cyclictest1377024-21kthreadcore21:20:411
120614099157,4cyclictest0-21swapper/020:10:410
1206140991512,2cyclictest1571922-21gltestperf23:30:360
1206140991512,2cyclictest1347268-21latency_hist21:00:010
1206140991512,2cyclictest1290925-21fschecks_time20:15:370
1206140991512,2cyclictest1257935-21sendmail_mailqu19:45:430
1206140991512,2cyclictest1213530-21tr19:15:030
120614099151,1cyclictest491rcuog/222:25:340
1206140991510,4cyclictest1348161-21gltestperf21:00:380
120614099150,13cyclictest1246183-21sendmail19:40:000
2649091140,5phc2sys0-21swapper/322:10:373
2649091140,4phc2sys0-21swapper/320:30:343
2649091140,2phc2sys0-21swapper/323:25:263
2649091140,2phc2sys0-21swapper/322:27:533
2649091140,2phc2sys0-21swapper/322:00:503
1206142991412,1cyclictest0-21swapper/222:40:012
1206142991412,1cyclictest0-21swapper/200:25:012
1206142991411,1cyclictest0-21swapper/223:15:332
1206142991411,1cyclictest0-21swapper/221:45:402
1206142991411,1cyclictest0-21swapper/221:36:592
1206142991411,1cyclictest0-21swapper/221:30:402
1206142991411,1cyclictest0-21swapper/221:20:402
1206142991411,1cyclictest0-21swapper/219:40:462
120614199149,4cyclictest3851704-21mta-sts-daemon19:35:111
1206141991413,1cyclictest1206138-21cyclictest19:55:351
1206141991411,2cyclictest3851703-21mta-sts-daemon22:20:311
1206141991411,2cyclictest3851702-21mta-sts-daemon23:40:061
1206141991411,2cyclictest1536757-21kthreadcore23:05:411
1206141991411,2cyclictest1401284-21kthreadcore21:35:411
1206141991411,2cyclictest1289051-21pmu-power20:10:441
1206141991411,2cyclictest1213524-21kthreadcore19:15:051
1206141991411,2cyclictest1212575-21munin-node20:45:211
1206141991410,3cyclictest0-21swapper/119:50:011
120614099149,4cyclictest0-21swapper/020:50:390
120614099141,8cyclictest1328563-21cat20:45:020
1206140991411,2cyclictest1222199-21cut19:20:380
1206140991410,3cyclictest1431779-21kthreadcore21:55:410
1206140991410,3cyclictest1306222-21kthreadcore20:25:420
2649091134,2phc2sys0-21swapper/323:30:363
2649091131,3phc2sys0-21swapper/320:21:413
2649091131,2phc2sys0-21swapper/321:55:373
2649091130,5phc2sys0-21swapper/321:50:353
2649091130,5phc2sys0-21swapper/320:40:333
2649091130,3phc2sys0-21swapper/319:45:323
2649091130,2phc2sys0-21swapper/319:06:593
2649091130,2phc2sys0-21swapper/300:31:423
2649091130,2phc2sys0-21swapper/300:11:583
2649091130,1phc2sys0-21swapper/321:04:423
1206142991311,1cyclictest0-21swapper/223:30:452
1206142991311,1cyclictest0-21swapper/222:20:362
1206142991311,1cyclictest0-21swapper/220:35:082
1206142991311,1cyclictest0-21swapper/219:50:412
1206142991310,1cyclictest0-21swapper/220:25:402
120614199133,5cyclictest1246687-21aten2.4-expect19:40:351
1206141991310,2cyclictest1272779-21irqrtprio20:00:381
120614099130,8cyclictest1329790-21/usr/sbin/munin20:45:390
2649091120,2phc2sys0-21swapper/323:02:373
2649091120,2phc2sys0-21swapper/322:42:513
2649091120,2phc2sys0-21swapper/300:35:273
2649091120,1phc2sys0-21swapper/323:11:003
2649091120,1phc2sys0-21swapper/321:11:353
1206142991210,1cyclictest0-21swapper/222:50:372
1206142991210,1cyclictest0-21swapper/220:20:362
1206142991210,1cyclictest0-21swapper/219:25:362
120614099121,6cyclictest1205971-21latency_hist19:10:020
120614099120,7cyclictest1272098-21df20:00:350
2649091112,2phc2sys0-21swapper/319:20:353
2649091111,4phc2sys0-21swapper/321:25:333
2649091110,4phc2sys0-21swapper/323:35:323
2649091110,2phc2sys0-21swapper/322:24:563
2649091110,1phc2sys0-21swapper/323:50:123
2649091110,1phc2sys0-21swapper/321:21:053
2649091110,1phc2sys0-21swapper/320:56:253
2649091110,1phc2sys0-21swapper/320:50:153
2649091110,1phc2sys0-21swapper/320:27:183
2649091110,1phc2sys0-21swapper/320:15:133
15626592110,4sleep30-21swapper/323:23:113
15395372110,3sleep30-21swapper/323:05:593
120614199118,2cyclictest0-21swapper/119:10:021
2649091101,2phc2sys0-21swapper/322:15:173
2649091101,2phc2sys0-21swapper/320:35:373
2649091100,2phc2sys0-21swapper/323:43:033
2649091100,2phc2sys0-21swapper/323:15:333
2649091100,2phc2sys0-21swapper/321:35:333
2649091100,2phc2sys0-21swapper/321:31:203
2649091100,2phc2sys0-21swapper/320:45:393
2649091100,2phc2sys0-21swapper/319:40:433
2649091100,2phc2sys0-21swapper/319:30:373
2649091100,2phc2sys0-21swapper/319:28:563
2649091100,2phc2sys0-21swapper/319:15:023
2649091100,2phc2sys0-21swapper/300:24:563
2649091100,2phc2sys0-21swapper/300:00:433
2649091100,1phc2sys0-21swapper/320:06:043
2649091100,1phc2sys0-21swapper/319:59:313
264909190,2phc2sys0-21swapper/322:50:443
264909190,2phc2sys0-21swapper/320:00:343
264909190,2phc2sys0-21swapper/319:54:553
264909190,2phc2sys0-21swapper/319:35:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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