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2026-04-25 - 05:47
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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 Sat Apr 25, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184597921120,2sleep20-21swapper/222:35:422
160169021040,1sleep10-21swapper/119:35:451
17761572750,1sleep11776156-21ssh21:47:231
19350292740,1sleep11935028-21ssh23:33:571
19350292740,1sleep11935028-21ssh23:33:571
19705932250,0sleep11970596-21cut23:55:451
1562789992515,5cyclictest1905987-21cpu23:15:370
1562789992514,5cyclictest1762591-21cstates21:40:390
1562790992418,2cyclictest383433398rtkit-daemon22:09:271
1562789992421,2cyclictest1703559-21dump-pmu-power21:00:010
1562789992413,6cyclictest0-21swapper/023:25:020
20089602230,2sleep10-21swapper/100:20:471
17874692230,1sleep01787468-21cut21:55:430
1562790992312,6cyclictest2026219-21latency_hist00:35:021
156278999239,5cyclictest1719764-21kthreadcore21:10:440
156278999237,4cyclictest0-21swapper/022:10:350
1562789992320,2cyclictest1569146-21if_err_eno119:15:000
156279099227,8cyclictest0-21swapper/100:00:341
1562790992217,1cyclictest134050irq/121-eno121:00:371
156278999228,5cyclictest0-21swapper/021:25:010
1562789992219,2cyclictest1822067-21sendmail22:20:000
1562789992219,2cyclictest1684560-21/usr/sbin/munin20:45:000
1562789992219,2cyclictest1671777-21sh20:35:010
1562789992219,2cyclictest1290-21dbus-daemon21:30:480
1562789992218,1cyclictest19881771systemd-run00:10:000
156278999221,1cyclictest1943414-21apt-get23:40:360
1562789992211,6cyclictest0-21swapper/022:50:440
156279199210,7cyclictest0-21swapper/222:10:002
1562790992118,2cyclictest1296-21polkitd22:00:011
1562790992115,2cyclictest134050irq/121-eno122:55:421
156279099211,14cyclictest1724668-21apt-get21:15:371
1562789992119,1cyclictest1761916-21/usr/sbin/munin21:40:020
1562789992118,2cyclictest0-21swapper/023:10:020
1562789992112,5cyclictest241rcuc/023:45:450
1562789992112,5cyclictest2001993-21grep00:15:510
1562789992112,5cyclictest1833835-21kthreadcore22:25:440
1562789992112,5cyclictest1773638-21kthreadcore21:45:460
1562789992110,5cyclictest1972647-21runrttasks23:59:130
2649091201,2phc2sys0-21swapper/320:05:423
1562791992017,1cyclictest0-21swapper/222:45:032
1562791992017,1cyclictest0-21swapper/219:40:002
1562791992017,1cyclictest0-21swapper/219:20:002
1562791992017,1cyclictest0-21swapper/200:10:002
156279099208,3cyclictest0-21swapper/123:05:001
1562790992014,2cyclictest134050irq/121-eno121:25:021
1562790992014,1cyclictest383433398rtkit-daemon23:21:581
1562790992013,2cyclictest1996-21runrttasks21:39:311
156278999207,6cyclictest0-21swapper/000:00:430
1562789992017,2cyclictest1920478-21systemd-run23:25:010
1562789992017,2cyclictest1746748-21systemd21:30:010
1562789992017,2cyclictest1562787-21cyclictest19:55:010
1562789992012,4cyclictest1888618-21awk23:00:490
1562789992010,2cyclictest3851702-21mta-sts-daemon20:00:390
156278999200,1cyclictest0-21swapper/022:49:190
2649091191,3phc2sys0-21swapper/323:13:193
1562791991917,1cyclictest0-21swapper/221:15:022
156279099199,3cyclictest1951206-21cpuspeed_turbos23:45:381
1562790991916,2cyclictest1584208-21aten_repower_cu19:25:361
1562790991915,3cyclictest1630865-21kthreadcore20:00:431
1562790991914,1cyclictest134050irq/121-eno122:25:431
1562790991914,1cyclictest134050irq/121-eno121:53:441
1562790991913,1cyclictest383433398rtkit-daemon00:26:391
156278999197,4cyclictest0-21swapper/022:05:490
156278999196,5cyclictest0-21swapper/023:30:390
156278999196,5cyclictest0-21swapper/023:30:390
156278999194,5cyclictest171ktimers/000:33:330
1562789991916,2cyclictest1665258-21cut20:30:010
1562789991916,2cyclictest1652653-21awk20:20:000
2649091180,2phc2sys0-21swapper/322:13:313
2649091180,1phc2sys0-21swapper/322:16:403
1562791991816,1cyclictest0-21swapper/220:40:462
1562791991815,1cyclictest0-21swapper/223:50:002
1562791991815,1cyclictest0-21swapper/223:25:022
1562791991815,1cyclictest0-21swapper/223:00:442
1562791991815,1cyclictest0-21swapper/222:35:012
1562791991815,1cyclictest0-21swapper/222:30:002
1562791991815,1cyclictest0-21swapper/221:20:382
1562791991815,1cyclictest0-21swapper/219:55:392
1562791991815,1cyclictest0-21swapper/219:35:002
156279199181,10cyclictest0-21swapper/221:00:002
156279099188,4cyclictest3834332-21rtkit-daemon22:23:301
156279099188,2cyclictest3851703-21mta-sts-daemon20:07:171
156279099186,8cyclictest1814994-21kworker/u16:0+xprtiod22:34:061
156279099186,3cyclictest0-21swapper/100:15:391
156279099183,10cyclictest1905849-21aten2.4-expect23:15:361
1562790991815,2cyclictest1958794-21cstates23:50:371
1562790991815,2cyclictest1769609-21gmain21:45:011
1562790991814,3cyclictest1925040-21kthreadcore23:25:441
1562790991814,3cyclictest1901678-21kthreadcore23:10:421
1562790991814,3cyclictest1641820-21kthreadcore20:10:421
1562790991814,3cyclictest1616555-21irqcore19:50:421
1562790991811,3cyclictest0-21swapper/100:35:431
1562790991810,3cyclictest134050irq/121-eno121:10:441
156278999188,5cyclictest0-21swapper/023:53:350
156278999188,1cyclictest383433398rtkit-daemon19:27:260
156278999186,4cyclictest0-21swapper/022:25:020
156278999186,2cyclictest1608931-21munin-run19:45:000
1562789991815,2cyclictest2009542-21grep00:20:500
1562789991815,2cyclictest1855725-21kthreadcore22:40:440
1562789991815,2cyclictest1615375-21cut19:50:020
1562789991815,2cyclictest0-21swapper/022:35:010
156278999180,13cyclictest1995369-21ssh00:13:280
2649091171,3phc2sys0-21swapper/300:15:373
2649091171,2phc2sys0-21swapper/323:05:423
2649091170,5phc2sys0-21swapper/321:44:383
2649091170,4phc2sys0-21swapper/322:09:473
2649091170,2phc2sys0-21swapper/300:01:173
1562791991715,1cyclictest0-21swapper/221:45:022
1562791991715,1cyclictest0-21swapper/200:00:022
1562791991714,1cyclictest0-21swapper/221:50:502
1562791991714,1cyclictest0-21swapper/219:15:002
1562791991714,1cyclictest0-21swapper/200:20:502
1562791991712,2cyclictest0-21swapper/220:35:352
156279099178,2cyclictest3851704-21mta-sts-daemon20:24:321
156279099176,2cyclictest0-21swapper/121:30:001
156279099175,7cyclictest1814000-21diskmemload22:13:241
156279099175,6cyclictest1807208-21kworker/u16:2+xprtiod22:16:341
156279099175,6cyclictest0-21swapper/100:05:351
1562790991714,2cyclictest1747268-21aten_repower_en21:30:371
1562790991714,2cyclictest1622446-21gltestperf19:55:391
1562790991714,2cyclictest1-21systemd22:45:031
1562790991714,2cyclictest0-21swapper/100:15:011
1562790991713,3cyclictest3827634-1atopacctd19:10:421
1562790991713,3cyclictest1713043-21kthreadcore21:05:431
1562790991713,3cyclictest1610554-21kthreadcore19:45:431
1562790991713,3cyclictest1562787-21cyclictest19:20:431
1562790991712,4cyclictest1651365-21kthreadcore20:15:451
1562790991712,1cyclictest134050irq/121-eno123:36:311
1562790991710,3cyclictest1562787-21cyclictest23:40:421
156278999176,1cyclictest2011435-21apt-get00:25:360
156278999174,3cyclictest1646422-21latency_hist20:15:010
156278999172,8cyclictest1686844-21cut20:45:440
156278999171,7cyclictest1845623-21df_inode22:35:390
156278999171,6cyclictest1602589-21latency_hist19:40:010
1562789991714,2cyclictest0-21swapper/000:40:020
2649091160,2phc2sys0-21swapper/322:00:123
1562791991614,1cyclictest0-21swapper/221:36:362
1562791991614,1cyclictest0-21swapper/221:15:422
1562791991614,1cyclictest0-21swapper/200:05:002
1562791991613,1cyclictest0-21swapper/223:50:442
1562791991613,1cyclictest0-21swapper/222:20:462
1562791991613,1cyclictest0-21swapper/219:30:002
1562791991613,1cyclictest0-21swapper/219:25:002
1562791991612,2cyclictest0-21swapper/222:00:412
156279099166,3cyclictest1571777-21aten2.4-expect19:15:371
156279099166,3cyclictest0-21swapper/122:50:331
1562790991613,2cyclictest1861217-21sh22:45:431
1562790991613,2cyclictest1700127-21kthreadcore20:55:431
1562790991613,2cyclictest1691436-21aten_repower_en20:50:361
1562790991613,2cyclictest1688291-21kthreadcore20:45:451
1562790991613,2cyclictest1684627-21apt-key20:45:001
1562790991613,2cyclictest1660012-21gltestperf20:25:411
1562790991613,2cyclictest1603121-21aten_repower_vo19:40:371
1562790991613,2cyclictest1594637-21kthreadcore19:30:431
1562790991612,3cyclictest3827634-1atopacctd22:00:431
1562790991612,3cyclictest1895240-21kthreadcore23:05:441
1562790991612,3cyclictest1668395-21kthreadcore20:30:441
1562790991611,2cyclictest1673978-21kthreadcore20:35:441
156278999168,4cyclictest3851705-21mta-sts-daemon23:37:450
156278999165,10cyclictest0-21swapper/021:15:420
156278999163,6cyclictest0-21swapper/022:00:380
156278999163,5cyclictest1905388-21cat23:15:010
156278999162,4cyclictest1704057-21aten2.4-expect21:00:370
156278999162,2cyclictest0-21swapper/022:55:450
156278999161,7cyclictest1777482-21/usr/sbin/munin21:50:500
156278999161,7cyclictest1691365-21/usr/sbin/munin20:50:340
1562789991613,2cyclictest3840882-21snmpd20:20:340
1562789991613,2cyclictest1622088-21cstates19:55:380
1562789991613,2cyclictest1590984-21sh19:30:380
2649091150,2phc2sys0-21swapper/323:18:373
2649091150,1phc2sys0-21swapper/323:39:293
156279199157,4cyclictest0-21swapper/222:50:002
156279199151,8cyclictest0-21swapper/220:20:002
1562791991513,1cyclictest0-21swapper/223:35:012
1562791991513,1cyclictest0-21swapper/223:35:012
1562791991512,1cyclictest0-21swapper/222:10:432
1562791991512,1cyclictest0-21swapper/221:30:502
1562791991511,2cyclictest0-21swapper/220:00:462
1562790991512,2cyclictest1845423-21cstates22:35:381
156278999154,2cyclictest1710119-21/usr/sbin/munin21:05:380
156278999152,5cyclictest171ktimers/019:22:440
156278999151,7cyclictest1634215-21/usr/sbin/munin20:05:400
156278999151,6cyclictest1571648-21/usr/sbin/munin19:15:380
156278999151,6cyclictest1562820-21cat19:10:000
156278999151,6cyclictest1562820-21cat19:10:000
1562789991512,2cyclictest1672722-21gltestperf20:35:410
2649091141,6phc2sys0-21swapper/323:40:363
2649091141,3phc2sys0-21swapper/300:10:363
2649091140,6phc2sys0-21swapper/322:40:433
2649091140,4phc2sys0-21swapper/300:30:363
2649091140,2phc2sys0-21swapper/323:49:403
2649091140,2phc2sys0-21swapper/322:51:193
2649091140,2phc2sys0-21swapper/320:47:423
1562791991412,1cyclictest0-21swapper/219:50:022
1562791991412,1cyclictest0-21swapper/200:35:022
1562791991412,1cyclictest0-21swapper/200:15:002
1562791991411,1cyclictest0-21swapper/223:42:162
1562791991411,1cyclictest0-21swapper/223:05:432
1562791991411,1cyclictest0-21swapper/222:55:362
1562791991411,1cyclictest0-21swapper/222:50:112
1562791991411,1cyclictest0-21swapper/221:55:442
1562791991411,1cyclictest0-21swapper/221:28:562
1562791991411,1cyclictest0-21swapper/220:50:392
1562791991411,1cyclictest0-21swapper/220:50:002
2649091131,2phc2sys0-21swapper/323:55:373
2649091130,4phc2sys0-21swapper/322:35:363
2649091130,2phc2sys0-21swapper/323:34:093
2649091130,2phc2sys0-21swapper/323:34:093
2649091130,2phc2sys0-21swapper/323:02:303
2649091130,2phc2sys0-21swapper/322:48:433
2649091130,2phc2sys0-21swapper/320:20:093
2649091130,2phc2sys0-21swapper/300:39:063
2649091130,1phc2sys0-21swapper/320:38:003
156279199139,2cyclictest0-21swapper/220:30:392
156279199131,7cyclictest0-21swapper/219:10:002
156279199131,7cyclictest0-21swapper/219:10:002
156279199131,7cyclictest0-21swapper/200:25:362
1562791991311,1cyclictest0-21swapper/223:35:362
1562791991311,1cyclictest0-21swapper/223:25:492
1562791991311,1cyclictest0-21swapper/221:45:392
1562791991311,1cyclictest0-21swapper/200:35:462
1562791991310,1cyclictest0-21swapper/223:15:242
1562791991310,1cyclictest0-21swapper/223:10:472
1562791991310,1cyclictest0-21swapper/222:15:422
1562791991310,1cyclictest0-21swapper/221:05:392
1562791991310,1cyclictest0-21swapper/221:01:492
1562791991310,1cyclictest0-21swapper/220:20:412
1562791991310,1cyclictest0-21swapper/200:15:452
2649091125,2phc2sys0-21swapper/319:20:493
2649091124,1phc2sys0-21swapper/321:00:443
2649091122,2phc2sys0-21swapper/323:20:333
2649091120,3phc2sys0-21swapper/322:24:503
2649091120,2phc2sys0-21swapper/321:45:383
2649091120,2phc2sys0-21swapper/321:17:043
2649091120,1phc2sys0-21swapper/319:30:523
2649091120,1phc2sys0-21swapper/319:17:213
15689592120,3sleep30-21swapper/319:14:483
156279199129,1cyclictest0-21swapper/220:10:112
156279199129,1cyclictest0-21swapper/220:05:442
1562791991210,1cyclictest0-21swapper/220:25:382
1562791991210,1cyclictest0-21swapper/219:50:362
2649091111,4phc2sys0-21swapper/319:40:363
2649091111,3phc2sys0-21swapper/323:50:363
2649091111,2phc2sys0-21swapper/321:33:563
2649091111,2phc2sys0-21swapper/319:25:433
2649091111,2phc2sys0-21swapper/300:25:353
2649091110,2phc2sys0-21swapper/321:10:023
2649091110,2phc2sys0-21swapper/319:05:423
2649091110,2phc2sys0-21swapper/319:05:423
156279199119,1cyclictest0-21swapper/219:40:282
156279099118,2cyclictest0-21swapper/119:10:011
156279099118,2cyclictest0-21swapper/119:10:011
2649091102,3phc2sys0-21swapper/319:55:433
2649091101,2phc2sys0-21swapper/322:30:393
2649091101,2phc2sys0-21swapper/321:50:513
2649091101,2phc2sys0-21swapper/321:20:413
2649091101,2phc2sys0-21swapper/321:05:413
2649091101,2phc2sys0-21swapper/320:45:013
2649091101,2phc2sys0-21swapper/320:30:403
2649091101,2phc2sys0-21swapper/319:51:113
2649091100,2phc2sys0-21swapper/323:26:503
2649091100,2phc2sys0-21swapper/322:57:413
2649091100,2phc2sys0-21swapper/322:25:543
2649091100,2phc2sys0-21swapper/321:55:443
2649091100,2phc2sys0-21swapper/321:35:363
2649091100,2phc2sys0-21swapper/320:00:053
2649091100,2phc2sys0-21swapper/300:22:393
2649091100,2phc2sys0-21swapper/300:07:083
2649091100,1phc2sys0-21swapper/320:25:223
264909190,2phc2sys0-21swapper/321:25:383
264909190,2phc2sys0-21swapper/320:55:393
264909190,2phc2sys0-21swapper/320:15:483
264909190,2phc2sys0-21swapper/320:10:393
264909190,2phc2sys0-21swapper/319:36:493
264909190,1phc2sys0-21swapper/320:50:143
1610024290,2sleep30-21swapper/319:45:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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