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2026-08-08 - 01:54
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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 Aug 07, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41195112830,2sleep20-21swapper/208:40:372
4005087992421,2cyclictest39570-21apt10:15:190
4005087992421,2cyclictest203792-21cron12:30:010
4005089992320,1cyclictest0-21swapper/210:25:012
4005087992319,2cyclictest4178881-21apt09:30:150
4005087992219,2cyclictest688-21in:imuxsock08:15:010
4005089992118,1cyclictest0-21swapper/207:20:002
4005088992118,2cyclictest4005085-21cyclictest10:40:351
4005087992118,2cyclictest688-21in:imuxsock11:15:000
1157598210,5rtkit-daemon351ktimers/111:59:411
4005089992017,1cyclictest0-21swapper/208:10:012
4005088992017,2cyclictest0-21swapper/111:00:011
400508899200,1cyclictest0-21swapper/108:45:181
4005087992017,2cyclictest82192-21/usr/sbin/munin10:50:010
1157598200,4rtkit-daemon1306-21mta-sts-daemon07:40:501
1157598200,3rtkit-daemon1307-21mta-sts-daemon07:43:160
4005088991916,2cyclictest51397-21apt-config10:25:011
4005087991916,2cyclictest664-21dbus-daemon10:15:020
4005087991916,2cyclictest664-21dbus-daemon08:55:020
4005088991815,2cyclictest0-21swapper/108:55:021
400508899180,17cyclictest1-21systemd08:20:011
4005087991815,2cyclictest4019525-21apt-key07:20:000
4005087991811,2cyclictest17750irq/127-ahci[0000:00:17.0]11:05:000
400508799180,1cyclictest0-21swapper/012:20:380
4005089991715,1cyclictest0-21swapper/207:40:022
4005089991714,1cyclictest0-21swapper/211:40:012
4005089991714,1cyclictest0-21swapper/210:05:032
4005089991713,2cyclictest0-21swapper/210:25:392
4005088991714,2cyclictest82178-21apt-config10:50:011
4005088991714,2cyclictest4011126-21sh07:15:001
4005088991714,2cyclictest1034-21runrttasks09:30:361
4005088991710,3cyclictest1309-21mta-sts-daemon08:32:081
400508799175,1cyclictest69250irq/121-eno108:49:370
4005087991714,2cyclictest4031988-21apt-key07:30:010
4005087991714,2cyclictest0-21swapper/010:10:010
4005087991713,3cyclictest1306-21mta-sts-daemon09:55:380
4005089991614,1cyclictest0-21swapper/211:10:012
4005089991614,1cyclictest0-21swapper/209:45:022
4005089991614,1cyclictest0-21swapper/208:55:012
4005089991614,1cyclictest0-21swapper/208:40:022
4005089991613,1cyclictest0-21swapper/212:00:012
4005089991613,1cyclictest0-21swapper/211:30:022
4005089991613,1cyclictest0-21swapper/210:50:012
4005089991613,1cyclictest0-21swapper/207:40:362
4005089991612,2cyclictest0-21swapper/212:35:352
4005088991613,2cyclictest664-21dbus-daemon10:55:001
4005088991613,2cyclictest664-21dbus-daemon10:55:001
4005088991613,2cyclictest4068745-21sendmail08:00:011
4005088991613,2cyclictest4014263-21uniq07:15:361
4005088991613,2cyclictest1307-21mta-sts-daemon08:00:441
400508899161,2cyclictest179548-21munin-run12:10:011
4005088991612,3cyclictest4026889-21gltestperf07:25:371
4005088991612,3cyclictest0-21swapper/111:15:451
4005088991610,5cyclictest1306-21mta-sts-daemon12:25:371
4005087991614,1cyclictest168726-21sed12:00:370
4005087991613,2cyclictest4191795-21gltestperf09:40:350
4005087991613,2cyclictest4025867-21grep07:25:000
4005087991613,2cyclictest149200-21cat11:45:010
4005087991613,2cyclictest137075-21dump-pmu-power11:35:010
4005087991613,2cyclictest1-21systemd10:55:430
4005087991613,2cyclictest11574-21rtkit-daemon10:01:470
4005087991613,2cyclictest0-21swapper/010:25:010
4005087991612,2cyclictest1-21systemd07:15:020
4005087991611,4cyclictest4011341-21munin-node08:58:380
4005087991611,4cyclictest4011341-21munin-node08:58:380
4005087991611,4cyclictest3918642-21GUsbEventThread08:02:470
3240591161,2phc2sys0-21swapper/312:35:393
3240591160,3phc2sys0-21swapper/311:00:173
3240591160,2phc2sys0-21swapper/311:15:433
400508999152,7cyclictest0-21swapper/208:15:192
4005089991513,1cyclictest0-21swapper/211:15:012
4005089991513,1cyclictest0-21swapper/209:15:342
4005089991513,1cyclictest0-21swapper/207:25:022
4005089991513,1cyclictest0-21swapper/207:10:362
4005089991512,1cyclictest0-21swapper/212:15:012
4005089991512,1cyclictest0-21swapper/211:50:012
4005089991512,1cyclictest0-21swapper/210:55:382
4005089991512,1cyclictest0-21swapper/209:55:012
4005089991512,1cyclictest0-21swapper/209:00:342
4005089991512,1cyclictest0-21swapper/209:00:342
4005089991512,1cyclictest0-21swapper/208:00:012
4005089991511,2cyclictest0-21swapper/212:25:412
4005089991511,2cyclictest0-21swapper/212:05:402
4005089991511,2cyclictest0-21swapper/210:10:392
4005089991511,2cyclictest0-21swapper/208:25:372
4005089991510,2cyclictest0-21swapper/209:10:182
400508899159,5cyclictest1306-21mta-sts-daemon11:05:481
4005088991512,2cyclictest684-21systemd-logind12:20:021
4005088991512,2cyclictest5960-21kthreadcore09:45:411
4005088991512,2cyclictest4059660-21kthreadcore07:50:391
4005088991512,2cyclictest1307-21mta-sts-daemon08:10:381
4005088991512,2cyclictest126042-21gltestperf11:25:371
4005088991512,2cyclictest1-21systemd08:28:531
4005088991512,2cyclictest0-21swapper/109:10:021
4005088991511,3cyclictest4005085-21cyclictest11:05:011
4005088991510,4cyclictest715-21wpa_supplicant11:14:511
4005088991510,4cyclictest715-21wpa_supplicant09:21:571
4005088991510,4cyclictest4011341-21munin-node08:09:431
4005088991510,4cyclictest1309-21mta-sts-daemon11:45:361
400508799158,5cyclictest4059258-21tr07:50:390
400508799156,7cyclictest4041409-21tr07:35:400
400508799156,5cyclictest0-21swapper/011:39:440
400508799155,5cyclictest4056629-21unin-run07:50:010
400508799153,4cyclictest1300-21mta-sts-daemon11:25:100
400508799152,8cyclictest4185924-21ps09:35:390
4005087991513,1cyclictest1306-21mta-sts-daemon12:35:360
4005087991513,1cyclictest1306-21mta-sts-daemon09:05:410
4005087991512,2cyclictest664-21dbus-daemon09:20:020
4005087991512,2cyclictest4172681-21cut09:25:020
4005087991512,2cyclictest4032780-21cpuspeed_turbos07:30:350
4005087991512,2cyclictest179730-21latency_hist12:10:020
4005087991512,2cyclictest1300-21mta-sts-daemon11:50:400
4005087991512,2cyclictest1053-21snmpd08:20:420
4005087991512,2cyclictest0-21swapper/009:55:020
4005087991510,4cyclictest3918642-21GUsbEventThread08:16:300
400508999141,7cyclictest0-21swapper/207:45:172
400508999141,6cyclictest0-21swapper/210:20:012
4005089991412,1cyclictest0-21swapper/210:40:402
4005089991411,2cyclictest0-21swapper/209:45:432
4005089991411,1cyclictest0-21swapper/212:30:402
4005089991411,1cyclictest0-21swapper/212:25:022
4005089991411,1cyclictest0-21swapper/212:20:012
4005089991411,1cyclictest0-21swapper/212:00:422
4005089991411,1cyclictest0-21swapper/211:24:162
4005089991411,1cyclictest0-21swapper/211:15:392
4005089991411,1cyclictest0-21swapper/210:50:372
4005089991411,1cyclictest0-21swapper/210:50:372
4005089991411,1cyclictest0-21swapper/210:35:352
4005089991411,1cyclictest0-21swapper/210:30:382
4005089991411,1cyclictest0-21swapper/209:25:352
4005089991411,1cyclictest0-21swapper/209:00:032
4005089991411,1cyclictest0-21swapper/209:00:032
4005089991411,1cyclictest0-21swapper/208:45:402
4005089991411,1cyclictest0-21swapper/208:00:402
4005089991411,1cyclictest0-21swapper/207:50:392
4005089991411,1cyclictest0-21swapper/207:30:352
4005089991410,2cyclictest0-21swapper/209:35:192
400508899149,4cyclictest1300-21mta-sts-daemon10:28:561
400508899148,5cyclictest759-1atopacctd08:55:331
400508899148,5cyclictest759-1atopacctd08:55:331
400508899148,5cyclictest4185532-21sort09:35:371
400508899148,5cyclictest1309-21mta-sts-daemon10:31:141
400508899148,5cyclictest1300-21mta-sts-daemon09:50:391
4005088991412,1cyclictest4005085-21cyclictest07:20:381
4005088991412,1cyclictest1307-21mta-sts-daemon12:38:571
4005088991412,1cyclictest0-21swapper/111:45:021
4005088991411,2cyclictest715-21wpa_supplicant07:33:421
4005088991411,2cyclictest672-21polkitd09:45:021
4005088991411,2cyclictest664-21dbus-daemon12:25:031
4005088991411,2cyclictest4173102-21cpuspeed_turbos09:25:331
4005088991411,2cyclictest4116634-21mailstats08:35:451
4005088991411,2cyclictest4005222-21latency_hist07:10:031
4005088991411,2cyclictest22041-21cut10:00:361
4005088991411,2cyclictest209867-21latency_hist12:35:011
4005088991411,2cyclictest18095-21kthreadcore09:55:411
4005088991411,2cyclictest1309-21mta-sts-daemon08:44:431
4005088991411,2cyclictest1307-21mta-sts-daemon07:45:351
4005088991411,2cyclictest0-21swapper/110:40:031
4005088991410,3cyclictest4095603-21kthreadcore08:20:391
4005088991410,3cyclictest4039925-21kthreadcore07:35:401
4005088991410,3cyclictest30208-21kthreadcore10:05:411
4005088991410,3cyclictest168451-21gltestperf12:00:351
4005088991410,1cyclictest1306-21mta-sts-daemon10:10:431
400508799145,5cyclictest0-21swapper/009:02:190
400508799145,5cyclictest0-21swapper/009:02:190
4005087991411,2cyclictest70839-21gltestperf10:40:370
4005087991411,2cyclictest53059-21irqrtprio10:25:380
4005087991411,2cyclictest4192-21irqcore09:45:390
4005087991411,2cyclictest4172907-21aten_repower_fr09:25:230
4005087991411,2cyclictest4159450-21pmu-power09:10:430
4005087991411,2cyclictest4119051-21kthreadcore08:40:380
4005087991411,2cyclictest181181-21kthreadcore12:10:380
4005087991411,2cyclictest150851-21kthreadcore11:45:400
4005087991411,2cyclictest113858-21grep11:15:370
4005087991411,2cyclictest0-21swapper/011:10:010
4005087991410,3cyclictest86257-21kthreadcore10:50:390
4005087991410,3cyclictest86257-21kthreadcore10:50:390
4005087991410,3cyclictest64341-21cpuspeed_turbos10:35:340
4005087991410,3cyclictest4113399-21kthreadcore08:35:400
400508799140,9cyclictest163148-21grep11:55:400
3240591140,5phc2sys0-21swapper/311:30:183
3240591140,5phc2sys0-21swapper/307:50:303
3240591140,2phc2sys0-21swapper/309:10:353
1157598140,3rtkit-daemon1300-21mta-sts-daemon12:31:120
400508999135,4cyclictest0-21swapper/211:30:182
4005089991311,1cyclictest0-21swapper/211:04:332
4005089991311,1cyclictest0-21swapper/210:05:252
4005089991311,1cyclictest0-21swapper/209:59:082
4005089991311,1cyclictest0-21swapper/208:35:012
4005089991311,1cyclictest0-21swapper/208:20:412
4005089991311,1cyclictest0-21swapper/208:10:372
4005089991311,1cyclictest0-21swapper/207:29:212
4005089991310,2cyclictest0-21swapper/209:20:392
4005089991310,1cyclictest0-21swapper/209:30:252
4005089991310,1cyclictest0-21swapper/209:05:372
400508899139,3cyclictest4165494-21phc2sys09:15:401
400508899139,3cyclictest1309-21mta-sts-daemon12:10:401
400508899138,4cyclictest1306-21mta-sts-daemon11:33:301
400508899132,6cyclictest143146-21munin-run11:40:011
4005088991310,2cyclictest664-21dbus-daemon10:20:021
4005088991310,2cyclictest4155007-21cpuspeed_turbos09:10:351
4005088991310,2cyclictest4143671-21kthreadcore09:00:391
4005088991310,2cyclictest4143671-21kthreadcore09:00:391
4005088991310,2cyclictest158392-21kthreadcore11:50:401
400508899130,8cyclictest119378-21chrt11:20:301
400508799131,4cyclictest0-21swapper/012:19:580
4005087991310,2cyclictest59319-21kthreadcore10:30:390
4005087991310,2cyclictest4105611-21aten_repower_en08:30:220
4005087991310,2cyclictest4075798-21fschecks_time08:05:400
4005087991310,2cyclictest4064240-21kthreadcore07:55:410
4005087991310,2cyclictest120549-21kthreadcore11:20:390
3240591131,3phc2sys0-21swapper/312:05:173
3240591130,3phc2sys0-21swapper/310:05:403
3240591130,2phc2sys0-21swapper/308:30:183
3240591130,2phc2sys0-21swapper/308:29:143
400508999129,1cyclictest0-21swapper/211:50:372
4005089991210,1cyclictest0-21swapper/211:40:272
4005089991210,1cyclictest0-21swapper/207:10:032
400508799127,4cyclictest4100091-21uniq08:25:370
3240591121,2phc2sys0-21swapper/307:45:023
3240591120,2phc2sys0-21swapper/311:00:013
3240591120,2phc2sys0-21swapper/310:20:303
3240591120,1phc2sys0-21swapper/311:56:153
3240591120,1phc2sys0-21swapper/310:44:183
3240591120,1phc2sys0-21swapper/310:33:413
3240591120,1phc2sys0-21swapper/309:40:233
3240591113,3phc2sys0-21swapper/308:40:013
3240591111,3phc2sys0-21swapper/308:14:553
3240591111,2phc2sys0-21swapper/311:25:023
3240591111,2phc2sys0-21swapper/309:10:013
3240591110,4phc2sys0-21swapper/311:50:173
3240591110,3phc2sys0-21swapper/308:49:373
3240591110,3phc2sys0-21swapper/307:10:403
3240591110,2phc2sys0-21swapper/312:30:183
3240591110,2phc2sys0-21swapper/309:50:373
3240591110,2phc2sys0-21swapper/309:20:403
3240591110,2phc2sys0-21swapper/308:20:443
3240591110,2phc2sys0-21swapper/307:25:183
3240591110,1phc2sys0-21swapper/312:02:523
3240591110,1phc2sys0-21swapper/311:49:103
3240591110,1phc2sys0-21swapper/310:48:313
3240591110,1phc2sys0-21swapper/309:38:393
3240591110,1phc2sys0-21swapper/307:38:293
3240591105,2phc2sys0-21swapper/308:50:433
3240591102,2phc2sys0-21swapper/309:25:373
3240591101,2phc2sys0-21swapper/308:10:023
3240591101,2phc2sys0-21swapper/307:55:323
3240591101,2phc2sys0-21swapper/307:05:353
3240591100,4phc2sys0-21swapper/310:00:183
3240591100,2phc2sys0-21swapper/311:40:163
3240591100,2phc2sys0-21swapper/310:40:023
3240591100,2phc2sys0-21swapper/310:27:383
3240591100,2phc2sys0-21swapper/310:15:453
3240591100,2phc2sys0-21swapper/309:00:353
3240591100,2phc2sys0-21swapper/309:00:353
3240591100,2phc2sys0-21swapper/308:55:343
3240591100,2phc2sys0-21swapper/308:55:343
3240591100,2phc2sys0-21swapper/308:00:443
3240591100,1phc2sys0-21swapper/309:59:433
3240591100,1phc2sys0-21swapper/308:17:433
1157598100,2rtkit-daemon1307-21mta-sts-daemon07:07:320
324059191,3phc2sys0-21swapper/309:45:353
324059191,2phc2sys0-21swapper/311:25:303
324059190,2phc2sys0-21swapper/312:25:413
324059190,2phc2sys0-21swapper/311:10:353
324059190,2phc2sys0-21swapper/310:50:363
324059190,2phc2sys0-21swapper/310:50:363
324059190,2phc2sys0-21swapper/310:14:563
324059190,2phc2sys0-21swapper/309:30:333
324059190,2phc2sys0-21swapper/309:15:143
324059190,2phc2sys0-21swapper/308:40:153
324059190,2phc2sys0-21swapper/307:45:343
324059190,2phc2sys0-21swapper/307:30:033
324059190,2phc2sys0-21swapper/307:20:373
324059190,2phc2sys0-21swapper/307:15:043
324059190,1phc2sys0-21swapper/312:20:033
324059190,1phc2sys0-21swapper/312:15:143
324059180,2phc2sys0-21swapper/312:10:343
324059180,2phc2sys0-21swapper/311:35:363
324059180,2phc2sys0-21swapper/311:05:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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