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2026-10-21 - 17:07

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #1

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot1s.osadl.org (updated Wed Oct 21, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3101278215069,68sleep30-21swapper/307:05:213
3106669214766,68sleep20-21swapper/207:06:332
3106827211254,19sleep10-21swapper/107:08:371
3101377211256,15sleep00-21swapper/007:05:470
33998672750,1sleep03399870-21fschecks_time11:11:040
3107122992318,4cyclictest3392718-21latency_hist11:05:000
3107123992016,3cyclictest3417241-21systemd11:25:021
3107123992016,3cyclictest3417241-21systemd11:25:021
3107122992014,5cyclictest3271450-21systemd09:25:010
3107125991917,1cyclictest0-21swapper/308:25:023
3107122991916,2cyclictest3289515-21sh09:40:010
3107122991914,4cyclictest587-21avahi-daemon11:58:130
3107123991815,2cyclictest3508118-21sendmail12:40:001
3107123991815,2cyclictest3508118-21sendmail12:40:001
310712299189,5cyclictest0-21swapper/009:45:000
310712299188,2cyclictest481rcuog/207:26:000
3107122991813,4cyclictest3508082-21unix_chkpwd12:40:000
3107122991813,4cyclictest3508082-21unix_chkpwd12:40:000
3107122991812,5cyclictest67-21kauditd12:15:000
3107122991811,2cyclictest0-21swapper/011:00:000
3107124991715,1cyclictest0-21swapper/209:45:002
3107123991714,2cyclictest641-1atopacctd10:25:011
3107123991714,2cyclictest3313785-21sendmail10:00:001
3107123991714,2cyclictest3198364-21/usr/sbin/munin08:25:011
3107123991714,2cyclictest3167894-21systemd-run08:00:001
3107123991714,2cyclictest3107120-21cyclictest09:50:001
310712399170,16cyclictest3246964-21grep09:05:001
310712299176,7cyclictest3149298-21users07:41:130
310712299176,6cyclictest811-21rs:main0
310712299176,6cyclictest591-21dbus-daemon11:25:010
310712299176,6cyclictest591-21dbus-daemon11:25:010
310712299176,6cyclictest3350643-21aten_repower_cu10:30:430
310712299176,6cyclictest3122541-21cut07:21:050
310712299175,7cyclictest3357502-21sed10:36:050
310712299175,7cyclictest3310225-21cut09:56:070
310712299175,7cyclictest3281954-21cut09:31:070
310712299175,7cyclictest3231461-21kthreadcore08:51:060
310712299175,7cyclictest3116940-21cut07:16:040
310712299175,3cyclictest0-21swapper/008:12:010
310712299174,9cyclictest3173907-21sshd-session08:04:260
310712299174,8cyclictest3155826-21cut07:50:000
3107122991711,2cyclictest3314620-21cstates10:01:010
3107122991711,2cyclictest3259132-21sh09:15:000
3107122991710,6cyclictest3430547-21irqcore11:36:040
3107122991710,3cyclictest0-21swapper/011:50:440
310712299170,12cyclictest3216477-21sshd-auth08:38:580
3107124991614,1cyclictest0-21swapper/212:35:002
3107123991613,2cyclictest591-21dbus-daemon12:10:001
3107123991613,2cyclictest591-21dbus-daemon08:15:001
3107123991613,2cyclictest3210445-21unix_chkpwd08:35:001
3107123991612,3cyclictest3112383-21ptp4l07:11:081
310712299169,3cyclictest3264228-21needreboot09:16:080
310712299166,9cyclictest3298280-21tr09:46:030
310712299165,6cyclictest3501714-21users12:31:130
310712299165,6cyclictest3483263-21timerandwakeup12:16:080
310712299165,6cyclictest3424057-21cat11:31:010
310712299165,6cyclictest3332964-21tune2fs10:16:000
310712299165,6cyclictest3329019-21cut10:11:040
310712299165,6cyclictest3228936-21date08:50:010
310712299165,6cyclictest3217412-21cat08:41:010
310712299165,6cyclictest3202749-21cut08:26:080
310712299165,6cyclictest3198292-21packagekitd08:25:000
310712299164,7cyclictest828-21gdbus11:10:010
310712299164,7cyclictest3320605-21cut10:05:590
310712299164,7cyclictest3252049-21sed09:06:100
310712299164,7cyclictest3156436-21cut07:51:000
310712299164,7cyclictest3108328-21irqcore07:11:030
310712299164,7cyclictest253-21systemd-journal07:34:550
310712299163,9cyclictest3165753-1kthreadcore07:56:060
310712299161,8cyclictest3174373-21chrt08:05:430
3107122991610,2cyclictest3423132-21dump-pmu-power11:30:000
3107122991610,2cyclictest3339402-21irqcore10:21:030
3107122991610,2cyclictest0-21swapper/012:10:010
310712299160,11cyclictest3460103-21sshd-auth12:00:580
310712299160,10cyclictest3489144-21grep12:21:100
3107125991513,1cyclictest0-21swapper/312:00:003
3107125991513,1cyclictest0-21swapper/311:45:003
310712599150,13cyclictest3398796-21turbostat11:10:003
3107124991513,1cyclictest0-21swapper/209:21:032
3107124991513,1cyclictest0-21swapper/208:35:012
3107124991513,1cyclictest0-21swapper/207:56:572
310712399155,9cyclictest3315541-21tr10:01:051
310712399154,10cyclictest253-21systemd-journal10:15:571
3107123991512,2cyclictest591-21dbus-daemon09:10:001
3107123991512,2cyclictest591-21dbus-daemon08:10:011
3107123991512,2cyclictest3241095-21systemd-run09:00:011
3107123991512,2cyclictest3119373-21systemd-run07:20:011
3107123991511,3cyclictest3232603-21kthreadcore08:51:071
3107123991511,3cyclictest3222764-21systemd08:45:001
310712399150,10cyclictest3143559-21cron07:40:001
310712299159,2cyclictest3344478-21acpi10:25:420
310712299155,8cyclictest3301988-21find09:50:450
310712299155,6cyclictest591-21dbus-daemon09:05:000
310712299154,7cyclictest253-21systemd-journal08:20:000
310712299154,6cyclictest3444694-21cut11:46:040
310712299152,9cyclictest981-21snmpd08:30:470
3107122991512,2cyclictest591-21dbus-daemon11:20:000
3107122991510,1cyclictest151ktimers/008:56:050
310712299150,11cyclictest3379537-21memory10:51:070
310712299150,10cyclictest3365722-21cut10:41:060
310712599149,3cyclictest3502042-21turbostat12:35:003
310712599144,8cyclictest3315842-21chrt10:01:053
3107125991412,1cyclictest0-21swapper/309:45:003
3107124991412,1cyclictest0-21swapper/211:35:022
3107124991412,1cyclictest0-21swapper/211:25:002
3107124991412,1cyclictest0-21swapper/211:25:002
3107124991412,1cyclictest0-21swapper/210:40:012
3107124991412,1cyclictest0-21swapper/209:35:012
3107124991412,1cyclictest0-21swapper/209:14:552
3107124991412,1cyclictest0-21swapper/207:39:572
3107124991412,1cyclictest0-21swapper/207:15:002
310712399147,6cyclictest3283982-21cut09:35:571
310712399146,7cyclictest3447306-21sshd-session11:48:581
310712399146,7cyclictest3378082-21tr10:51:061
310712399146,7cyclictest3277316-21cron09:30:001
310712399146,7cyclictest253-21systemd-journal12:05:011
310712399146,7cyclictest1-21systemd09:52:571
310712399146,6cyclictest3350670-21aten_repower_en10:30:461
310712399145,8cyclictest3404945-21systemd-run11:15:011
310712399145,7cyclictest1-21systemd11:20:011
310712399143,5cyclictest3489893-21munin-plugin-st12:25:001
310712399142,11cyclictest811-21rs:main1
3107123991411,2cyclictest591-21dbus-daemon12:30:011
3107123991411,2cyclictest3107120-21cyclictest09:10:491
3107123991411,2cyclictest1-21systemd11:40:021
310712399141,10cyclictest3429333-21systemd-run11:35:021
310712399141,10cyclictest3155851-21systemd-run07:50:011
3107123991410,3cyclictest641-1atopacctd11:41:061
3107123991410,3cyclictest3496556-21cpu12:31:011
3107123991410,3cyclictest3391891-21proc_pri11:01:091
3107123991410,3cyclictest3259584-21aten_repower_fr09:15:501
310712399140,8cyclictest3374551-21munin-run10:50:001
310712299148,2cyclictest0-21swapper/011:45:020
310712299145,7cyclictest3370024-21sed10:46:040
310712299141,5cyclictest3143684-21munin-run07:40:010
3107125991311,1cyclictest0-21swapper/311:45:593
3107125991311,1cyclictest0-21swapper/311:30:053
3107125991311,1cyclictest0-21swapper/311:16:583
3107125991311,1cyclictest0-21swapper/309:31:013
3107125991311,1cyclictest0-21swapper/309:30:003
3107125991311,1cyclictest0-21swapper/309:11:083
3107125991311,1cyclictest0-21swapper/308:32:583
3107124991311,1cyclictest0-21swapper/212:19:172
3107124991311,1cyclictest0-21swapper/211:15:002
3107124991311,1cyclictest0-21swapper/210:41:002
3107124991311,1cyclictest0-21swapper/210:09:472
3107124991311,1cyclictest0-21swapper/210:05:002
3107124991311,1cyclictest0-21swapper/209:45:582
3107124991311,1cyclictest0-21swapper/209:06:002
3107124991311,1cyclictest0-21swapper/208:56:002
3107124991311,1cyclictest0-21swapper/208:40:012
3107124991311,1cyclictest0-21swapper/207:21:032
310712399139,3cyclictest3478139-21aten_repower_cu12:15:421
310712399139,3cyclictest3451499-21kthreadcore11:51:061
310712399139,3cyclictest3381112-21aten_repower_po10:55:531
310712399139,3cyclictest3277890-21aten_repower_vo09:30:571
310712399139,3cyclictest0-21swapper/107:25:531
310712399137,4cyclictest3107120-21cyclictest12:11:581
310712399135,7cyclictest3216557-21sshd-session08:39:581
310712399135,6cyclictest3361020-21kthreadcore10:36:081
310712399135,6cyclictest3201128-21kthreadcore08:26:071
310712399135,6cyclictest3120263-21fschecks_time07:21:011
310712399134,8cyclictest3131835-21aten2.4-expect07:30:501
310712399134,7cyclictest3420978-21cut11:26:061
310712399134,7cyclictest3228183-21date08:46:101
310712399134,7cyclictest3186579-21aten_repower_fr08:15:521
310712399133,8cyclictest3456109-21cut11:56:051
310712399133,8cyclictest3362965-21aten2.4-expect10:41:001
3107123991310,2cyclictest641-1atopacctd11:05:541
3107123991310,2cyclictest641-1atopacctd09:20:491
310712399130,7cyclictest3149780-21sd-rmrf07:45:011
310712299135,7cyclictest253-21systemd-journal09:30:000
310712599124,6cyclictest3313775-21sleep10:00:003
310712599121,9cyclictest65450irq/121-eno111:04:293
3107125991210,1cyclictest0-21swapper/312:05:003
3107125991210,1cyclictest0-21swapper/309:20:593
3107125991210,1cyclictest0-21swapper/309:00:543
3107125991210,1cyclictest0-21swapper/308:51:013
3107125991210,1cyclictest0-21swapper/308:41:063
3107125991210,1cyclictest0-21swapper/308:10:483
3107125991210,1cyclictest0-21swapper/307:25:003
3107125991210,1cyclictest0-21swapper/307:16:083
310712599120,10cyclictest65450irq/121-eno110:21:573
310712599120,10cyclictest65450irq/121-eno108:47:223
310712599120,10cyclictest65450irq/121-eno107:45:443
310712599120,10cyclictest65450irq/121-eno107:36:043
310712599120,10cyclictest3216440-21chrt08:38:293
310712499123,7cyclictest3337803-21chrt10:17:032
3107124991210,1cyclictest0-21swapper/212:01:052
3107124991210,1cyclictest0-21swapper/211:50:542
3107124991210,1cyclictest0-21swapper/211:46:042
3107124991210,1cyclictest0-21swapper/210:20:522
3107124991210,1cyclictest0-21swapper/210:00:002
3107124991210,1cyclictest0-21swapper/209:52:282
3107124991210,1cyclictest0-21swapper/209:36:052
3107124991210,1cyclictest0-21swapper/209:30:012
3107124991210,1cyclictest0-21swapper/208:45:002
3107124991210,1cyclictest0-21swapper/208:20:002
3107124991210,1cyclictest0-21swapper/207:34:192
310712499120,2cyclictest35024042sleep212:35:432
310712499120,2cyclictest35024042sleep212:35:432
310712399125,6cyclictest3156854-21cat07:51:031
310712399124,7cyclictest3168374-21aten2.4-expect08:00:541
310712399124,6cyclictest3322967-21tr10:06:041
310712399124,6cyclictest3290468-21uniq09:41:021
310712399120,10cyclictest3331125-21tr10:11:071
310712599119,1cyclictest0-21swapper/312:39:373
310712599119,1cyclictest0-21swapper/312:39:373
310712599119,1cyclictest0-21swapper/312:10:273
310712599119,1cyclictest0-21swapper/311:25:533
310712599119,1cyclictest0-21swapper/311:21:003
310712599119,1cyclictest0-21swapper/311:21:003
310712599119,1cyclictest0-21swapper/310:28:333
310712599119,1cyclictest0-21swapper/310:11:103
310712599119,1cyclictest0-21swapper/310:06:083
310712599119,1cyclictest0-21swapper/309:17:533
310712599119,1cyclictest0-21swapper/309:06:383
310712599119,1cyclictest0-21swapper/308:05:123
310712599119,1cyclictest0-21swapper/307:51:053
310712599119,1cyclictest0-21swapper/307:30:223
310712599111,8cyclictest65450irq/121-eno107:55:443
310712599110,9cyclictest65450irq/121-eno112:20:453
310712599110,9cyclictest65450irq/121-eno111:11:283
310712599110,9cyclictest65450irq/121-eno110:55:423
310712599110,9cyclictest65450irq/121-eno110:46:023
310712599110,9cyclictest65450irq/121-eno110:36:093
310712599110,9cyclictest65450irq/121-eno109:46:063
310712599110,9cyclictest65450irq/121-eno108:15:333
310712599110,9cyclictest65450irq/121-eno107:42:483
310712599110,9cyclictest3380562-21chrt10:54:593
310712599110,9cyclictest3368287-21chrt10:43:213
310712599110,9cyclictest3301957-21chrt09:50:233
310712599110,9cyclictest3112837-21chrt07:11:123
310712599110,8cyclictest3478268-21chrt12:15:513
310712499119,1cyclictest0-21swapper/212:11:032
310712499119,1cyclictest0-21swapper/212:06:042
310712499119,1cyclictest0-21swapper/211:15:472
310712499119,1cyclictest0-21swapper/211:03:222
310712499119,1cyclictest0-21swapper/210:34:412
310712499119,1cyclictest0-21swapper/209:15:472
310712499119,1cyclictest0-21swapper/209:01:062
310712499119,1cyclictest0-21swapper/208:20:542
310712499119,1cyclictest0-21swapper/208:08:462
310712499119,1cyclictest0-21swapper/208:05:002
310712499119,1cyclictest0-21swapper/207:53:552
310712499119,1cyclictest0-21swapper/207:46:012
310712499119,1cyclictest0-21swapper/207:40:142
310712499119,1cyclictest0-21swapper/207:28:582
310712499119,1cyclictest0-21swapper/207:20:002
3107124991110,1cyclictest0-21swapper/211:36:052
310712499110,9cyclictest3374277-21chrt10:46:532
310712499110,8cyclictest3204216-21chrt08:27:582
310712599109,1cyclictest0-21swapper/307:25:153
310712599105,3cyclictest3466110-21taskset12:05:533
310712599100,8cyclictest3490215-21chrt12:25:173
310712599100,8cyclictest3447735-21chrt11:50:143
310712599100,8cyclictest3429520-21chrt11:35:233
310712599100,8cyclictest3350576-21chrt10:30:313
310712599100,8cyclictest3332301-21chrt10:15:163
310712599100,8cyclictest3235129-21chrt08:55:083
310712599100,8cyclictest3198638-21chrt08:25:383
310712599100,8cyclictest3168194-21chrt08:00:093
310712599100,7cyclictest3283740-21chrt09:35:123
310712499108,1cyclictest0-21swapper/211:25:532
310712499108,1cyclictest0-21swapper/210:50:032
310712499100,8cyclictest3490219-21chrt12:25:202
310712499100,8cyclictest3489602-21chrt12:21:392
310712499100,8cyclictest3454005-21chrt11:55:542
310712499100,8cyclictest3440892-21chrt11:41:112
310712499100,8cyclictest3393072-21chrt11:05:412
310712499100,8cyclictest33864162sleep210:57:082
310712499100,8cyclictest3344444-21chrt10:25:252
310712499100,8cyclictest3331826-21chrt10:13:262
310712499100,8cyclictest3229066-21chrt08:50:022
310712499100,8cyclictest3223011-21chrt08:45:172
310712499100,2cyclictest31804382sleep208:10:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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