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2026-06-05 - 11:51
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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 Fri Jun 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30533021660,2sleep30-21swapper/321:19:463
5816712740,2sleep10-21swapper/100:24:401
4520662670,1sleep1452065-21ssh22:57:341
5432982400,2sleep0139712-21cyclictest23:59:090
3427502310,2sleep1342232-21ssh21:44:461
4005092290,1sleep10-21swapper/122:24:421
139714992817,6cyclictest0-21swapper/021:25:000
139715992722,2cyclictest134050irq/121-eno100:05:021
139715992421,2cyclictest1290-21dbus-daemon22:50:031
139715992315,2cyclictest134050irq/121-eno123:34:491
139714992320,2cyclictest229879-21apt20:20:000
139714992320,2cyclictest147373-21kthreadcore19:15:030
139714992314,5cyclictest344980-21timerandwakeup21:44:510
139714992313,4cyclictest3827634-1atopacctd22:33:580
2649091220,7phc2sys0-21swapper/322:59:373
139715992220,1cyclictest534285-21sh23:50:011
139715992219,2cyclictest549259-21sendmail00:00:001
139714992219,2cyclictest458555-21apt-key23:00:000
13971699212,10cyclictest0-21swapper/200:20:002
139716992112,4cyclictest0-21swapper/222:00:002
139716992112,4cyclictest0-21swapper/222:00:002
139714992112,5cyclictest469201-21sed23:09:430
139714992110,6cyclictest0-21swapper/022:40:020
139715992017,2cyclictest286131-21systemd-run21:05:001
139715992017,2cyclictest1-21systemd00:40:001
13971499207,7cyclictest0-21swapper/022:14:360
13971499204,4cyclictest500610-21cut23:29:450
139714992014,5cyclictest2840498-21systemd-journal23:50:000
139714992012,7cyclictest0-21swapper/021:50:000
13971499201,14cyclictest0-21swapper/021:59:380
13971499201,14cyclictest0-21swapper/021:59:380
2649091190,2phc2sys0-21swapper/323:42:173
139716991917,1cyclictest0-21swapper/223:00:012
139715991916,2cyclictest571478-21strings00:14:481
139715991916,2cyclictest519183-21sh23:40:011
139715991916,2cyclictest488866-21wc23:20:001
13971499199,5cyclictest0-21swapper/021:34:500
139714991916,2cyclictest428248-21systemd-run22:40:020
139714991915,3cyclictest397912-21sendmail22:20:010
2649091180,2phc2sys0-21swapper/321:56:213
2649091180,2phc2sys0-21swapper/321:56:203
139716991816,1cyclictest0-21swapper/221:40:022
139716991815,1cyclictest0-21swapper/222:10:002
139716991814,2cyclictest0-21swapper/200:39:432
139715991815,2cyclictest1290-21dbus-daemon22:10:001
139715991811,3cyclictest420523-21/usr/sbin/munin22:35:001
139715991811,3cyclictest309216-21apt-get21:24:371
13971499181,6cyclictest466293-21munin-run23:05:000
139714991811,6cyclictest0-21swapper/000:30:010
139714991810,7cyclictest1-21systemd22:30:020
2649091173,2phc2sys0-21swapper/321:24:533
2649091170,2phc2sys0-21swapper/322:16:593
2649091170,2phc2sys0-21swapper/320:28:533
2649091170,2phc2sys0-21swapper/300:34:363
18612521711,3sleep30-21swapper/319:45:013
139716991715,1cyclictest0-21swapper/219:25:012
139716991714,1cyclictest0-21swapper/222:04:592
139716991714,1cyclictest0-21swapper/221:14:522
139716991714,1cyclictest0-21swapper/219:50:002
13971699171,10cyclictest0-21swapper/220:20:002
13971599179,3cyclictest3827634-1atopacctd22:14:401
139715991714,2cyclictest590376-21kthreadcore00:29:421
139715991714,2cyclictest472251-21kthreadcore23:09:461
139715991714,2cyclictest374031-21kthreadcore22:04:461
139715991714,2cyclictest299837-21latency_hist21:15:011
139715991714,2cyclictest146416-21cpuspeed_turbos19:15:011
139715991714,2cyclictest139712-21cyclictest00:19:451
13971499178,4cyclictest0-21swapper/022:05:000
13971499177,6cyclictest0-21swapper/022:54:470
13971499174,8cyclictest0-21swapper/021:14:370
139714991714,2cyclictest398915-21runrttasks22:22:080
139714991714,2cyclictest162314-21cut19:29:390
139714991710,4cyclictest149108-21tail19:19:390
2649091160,2phc2sys0-21swapper/323:20:253
2649091160,2phc2sys0-21swapper/319:24:363
2649091160,2phc2sys0-21swapper/300:37:423
2649091160,1phc2sys0-21swapper/322:25:423
2649091160,1phc2sys0-21swapper/300:10:083
13971699161,8cyclictest0-21swapper/220:30:002
139716991614,1cyclictest0-21swapper/222:40:002
139716991614,1cyclictest0-21swapper/200:04:462
139716991613,2cyclictest0-21swapper/221:35:012
139716991613,1cyclictest0-21swapper/223:34:492
139716991613,1cyclictest0-21swapper/219:35:002
139716991612,2cyclictest0-21swapper/222:19:442
13971699160,8cyclictest0-21swapper/220:40:002
13971699160,10cyclictest0-21swapper/219:30:002
13971599169,3cyclictest255705-21tail20:44:371
13971599167,4cyclictest279841-21latency_hist21:00:001
139715991614,1cyclictest0-21swapper/119:40:001
139715991613,2cyclictest412921-21latency_hist22:30:011
139715991613,2cyclictest3851704-21mta-sts-daemon20:19:451
139715991613,2cyclictest3851703-21mta-sts-daemon23:12:251
139715991613,2cyclictest347964-21if_err_enp1s0.821:49:421
139715991613,2cyclictest325462-21irqcore21:34:431
139715991613,2cyclictest322798-21latency_hist21:30:001
139715991613,2cyclictest268698-21gltestperf20:54:391
139715991613,2cyclictest1-21systemd22:45:011
139715991613,2cyclictest0-21swapper/121:20:011
139715991610,5cyclictest3851703-21mta-sts-daemon20:24:501
139715991610,3cyclictest564272-21switchtime00:09:491
13971499169,6cyclictest0-21swapper/022:47:530
13971499168,6cyclictest0-21swapper/021:39:460
13971499166,4cyclictest161074-21basename19:25:000
13971499163,8cyclictest248455-21grep20:34:500
13971499161,5cyclictest491rcuog/200:35:350
139714991613,2cyclictest564072-21proc_pri00:09:470
139714991613,2cyclictest525670-21kthreadcore23:44:460
139714991613,2cyclictest496455-21/usr/sbin/munin23:25:000
139714991613,2cyclictest1326-21systemd-logind23:15:010
139714991612,3cyclictest489729-21kworker/u16:0+nfsiod23:37:050
13971499160,4cyclictest292330-21dump-pmu-power21:10:000
13971499160,11cyclictest549918-21ssh00:00:220
2649091150,2phc2sys0-21swapper/300:20:493
2649091150,1phc2sys0-21swapper/323:12:553
2649091150,1phc2sys0-21swapper/323:06:103
2649091150,1phc2sys0-21swapper/321:28:103
13971699151,8cyclictest0-21swapper/223:30:002
139716991513,1cyclictest0-21swapper/219:15:022
139716991513,1cyclictest0-21swapper/200:00:012
139716991512,1cyclictest0-21swapper/222:54:442
139716991512,1cyclictest0-21swapper/222:45:552
139716991512,1cyclictest0-21swapper/222:29:382
139716991512,1cyclictest0-21swapper/221:29:512
139716991512,1cyclictest0-21swapper/220:24:432
139716991512,1cyclictest0-21swapper/220:10:012
139716991512,1cyclictest0-21swapper/220:00:002
139716991512,1cyclictest0-21swapper/219:54:412
139716991512,1cyclictest0-21swapper/200:30:382
139716991512,1cyclictest0-21swapper/200:14:432
139716991511,2cyclictest0-21swapper/222:21:502
13971599159,5cyclictest3851705-21mta-sts-daemon19:59:411
13971599159,5cyclictest3851702-21mta-sts-daemon00:34:291
139715991512,2cyclictest503981-21latency_hist23:30:011
139715991512,2cyclictest428006-21cron22:40:001
139715991512,2cyclictest3851705-21mta-sts-daemon19:19:371
139715991512,2cyclictest354578-21acpi21:54:371
139715991512,2cyclictest332414-21cstates21:39:391
139715991512,2cyclictest139712-21cyclictest23:04:451
139715991512,2cyclictest139712-21cyclictest20:45:241
139715991512,2cyclictest0-21swapper/123:44:491
139715991511,3cyclictest489729-21kworker/u16:0+nfsiod23:52:251
139715991511,3cyclictest3851704-21mta-sts-daemon22:53:521
139715991511,3cyclictest362715-21cut21:59:421
139715991511,3cyclictest362715-21cut21:59:421
13971499159,2cyclictest0-21swapper/023:16:110
13971499158,2cyclictest286086-21cron21:05:000
13971499157,7cyclictest0-21swapper/000:34:450
13971499155,9cyclictest358477-21cut21:54:460
13971499154,4cyclictest378982-21kthreadcore22:09:440
139714991512,2cyclictest574817-21if_enp1s000:19:420
139714991512,2cyclictest536017-21sh23:54:390
139714991512,2cyclictest249999-21gltestperf20:39:410
139714991512,2cyclictest237073-21cpuspeed_turbos20:29:380
139714991512,2cyclictest231311-21head20:24:400
139714991512,2cyclictest181233-21cut19:44:400
139714991512,2cyclictest0-21swapper/019:50:000
139714991511,3cyclictest489729-21kworker/u16:0+nfsiod23:32:140
139714991511,3cyclictest198788-21latency_hist19:55:020
139714991511,2cyclictest3851702-21mta-sts-daemon21:17:360
13971499150,3cyclictest566475-21ssh00:14:370
5351822141,5sleep30-21swapper/323:52:193
2649091145,2phc2sys0-21swapper/321:13:153
2649091140,3phc2sys0-21swapper/321:36:073
2649091140,3phc2sys0-21swapper/300:09:363
2649091140,2phc2sys0-21swapper/323:30:403
2649091140,2phc2sys0-21swapper/322:05:223
2649091140,2phc2sys0-21swapper/322:03:183
2649091140,1phc2sys0-21swapper/322:34:553
13971699149,3cyclictest0-21swapper/219:39:492
13971699144,4cyclictest0-21swapper/220:14:362
13971699141,9cyclictest0-21swapper/221:10:002
139716991411,1cyclictest0-21swapper/223:52:422
139716991411,1cyclictest0-21swapper/223:46:522
139716991411,1cyclictest0-21swapper/223:14:372
139716991411,1cyclictest0-21swapper/223:09:492
139716991411,1cyclictest0-21swapper/223:02:552
139716991411,1cyclictest0-21swapper/222:44:482
139716991411,1cyclictest0-21swapper/222:34:402
139716991411,1cyclictest0-21swapper/221:46:562
139716991411,1cyclictest0-21swapper/219:44:432
139716991411,1cyclictest0-21swapper/219:11:532
139716991411,1cyclictest0-21swapper/200:29:392
139716991411,1cyclictest0-21swapper/200:20:422
139716991411,1cyclictest0-21swapper/200:09:422
139716991410,2cyclictest0-21swapper/223:22:142
139716991410,2cyclictest0-21swapper/221:54:422
139716991410,2cyclictest0-21swapper/220:34:172
13971699140,7cyclictest0-21swapper/221:00:002
13971599147,6cyclictest3851703-21mta-sts-daemon20:04:381
139715991411,2cyclictest490651-21acpi23:24:351
139715991411,2cyclictest3827634-1atopacctd20:30:001
139715991411,2cyclictest3824563-21rsyslogd19:20:461
139715991411,2cyclictest214667-21kthreadcore20:09:431
139715991411,2cyclictest168930-21sed19:34:431
139715991411,2cyclictest162469-21tail19:29:401
139715991410,3cyclictest360409-21kworker/u16:3+nfsiod22:18:271
139715991410,3cyclictest187086-21cpuspeed_turbos19:49:381
13971499148,5cyclictest3851702-21mta-sts-daemon00:20:060
13971499146,4cyclictest3851704-21mta-sts-daemon19:34:370
13971499145,5cyclictest0-21swapper/020:40:520
13971499144,5cyclictest212715-21irqcore20:09:400
139714991411,2cyclictest319934-21kthreadcore21:29:460
139714991411,2cyclictest209833-21kthreadcore20:04:450
139714991411,2cyclictest204955-21systemd-run20:00:010
139714991410,3cyclictest265847-21kthreadcore20:49:450
139714991410,3cyclictest176820-21kthreadcore19:39:440
2649091134,4phc2sys0-21swapper/322:44:373
2649091131,2phc2sys0-21swapper/320:19:363
2649091130,5phc2sys0-21swapper/321:54:383
2649091130,2phc2sys0-21swapper/323:28:593
2649091130,2phc2sys0-21swapper/321:45:423
2649091130,2phc2sys0-21swapper/321:30:433
2649091130,2phc2sys0-21swapper/320:21:123
2649091130,2phc2sys0-21swapper/320:03:093
2649091130,1phc2sys0-21swapper/319:25:183
1985542130,2sleep30-21swapper/319:54:553
13971699139,2cyclictest0-21swapper/220:50:002
139716991311,1cyclictest0-21swapper/223:44:452
139716991311,1cyclictest0-21swapper/221:17:082
139716991310,2cyclictest0-21swapper/220:04:482
139716991310,1cyclictest0-21swapper/223:39:442
139716991310,1cyclictest0-21swapper/223:16:032
139716991310,1cyclictest0-21swapper/221:20:302
139716991310,1cyclictest0-21swapper/220:54:392
139716991310,1cyclictest0-21swapper/220:44:432
13971599137,5cyclictest3824565-21in:imuxsock19:10:011
13971599135,6cyclictest184869-21cut19:44:451
139715991310,2cyclictest3851704-21mta-sts-daemon19:54:381
139715991310,2cyclictest3851703-21mta-sts-daemon21:09:431
139715991310,2cyclictest3851702-21mta-sts-daemon20:34:391
139715991310,2cyclictest252160-21kthreadcore20:39:441
139715991310,2cyclictest218156-21aten_repower_po20:14:371
13971499139,3cyclictest277026-21kthreadcore20:59:440
139714991310,2cyclictest3834332-21rtkit-daemon20:50:540
139714991310,2cyclictest218737-21gltestperf20:14:400
2649091121,1phc2sys0-21swapper/320:33:473
2649091120,2phc2sys0-21swapper/323:48:393
2649091120,2phc2sys0-21swapper/322:45:143
2649091120,2phc2sys0-21swapper/321:03:033
2649091120,2phc2sys0-21swapper/319:57:313
2649091120,2phc2sys0-21swapper/300:04:393
2649091120,1phc2sys0-21swapper/323:02:163
2649091120,1phc2sys0-21swapper/322:24:463
13971699129,2cyclictest0-21swapper/221:04:412
13971699129,1cyclictest0-21swapper/221:42:072
139716991210,1cyclictest0-21swapper/222:10:062
2649091113,2phc2sys0-21swapper/319:49:433
2649091112,2phc2sys0-21swapper/300:25:193
2649091111,3phc2sys0-21swapper/319:19:373
2649091111,2phc2sys0-21swapper/323:56:333
2649091111,2phc2sys0-21swapper/322:54:443
2649091110,5phc2sys0-21swapper/300:19:373
2649091110,2phc2sys0-21swapper/321:43:293
2649091110,2phc2sys0-21swapper/319:14:363
13971499115,4cyclictest1290-21dbus-daemon19:10:010
2649091101,2phc2sys0-21swapper/321:10:013
2649091101,2phc2sys0-21swapper/320:49:423
2649091101,2phc2sys0-21swapper/320:45:013
2649091101,2phc2sys0-21swapper/320:39:443
2649091101,2phc2sys0-21swapper/319:34:363
2649091100,3phc2sys0-21swapper/323:35:323
2649091100,2phc2sys0-21swapper/323:17:163
2649091100,2phc2sys0-21swapper/322:35:133
2649091100,2phc2sys0-21swapper/320:14:443
2649091100,2phc2sys0-21swapper/319:40:013
13971699108,1cyclictest0-21swapper/219:10:012
264909191,2phc2sys0-21swapper/322:11:073
264909191,2phc2sys0-21swapper/319:09:393
264909190,2phc2sys0-21swapper/320:59:363
264909190,2phc2sys0-21swapper/320:54:433
264909180,1phc2sys0-21swapper/320:06:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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