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2026-08-21 - 01:25

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 the 100 highest latencies:
System rackeslot1s.osadl.org (updated Thu Aug 20, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
601511216153,92sleep20-21swapper/207:07:402
596085214955,79sleep30-21swapper/307:05:083
601393211154,22sleep10-21swapper/107:06:061
601375210053,15sleep00-21swapper/007:05:530
8518902260,1sleep10-21swapper/110:35:411
60185999257,11cyclictest466-21dbus-daemon11:30:010
601860992421,2cyclictest897842-21apt-key11:15:001
601860992421,2cyclictest758984-21gpgconf09:20:011
601861992319,2cyclictest952903-21turbostat12:00:002
601861992319,2cyclictest952903-21turbostat12:00:002
601859992312,6cyclictest698865-21aten_repower_po08:30:290
601859992312,5cyclictest67-21kauditd09:40:010
601861992220,1cyclictest0-21swapper/209:20:002
601860992219,2cyclictest971652-21sh12:15:011
601860992218,3cyclictest246-21systemd-journal09:44:561
601859992215,6cyclictest855549-21sendmail10:40:000
601859992215,6cyclictest3023-21cron11:20:000
601859992214,7cyclictest601857-21cyclictest10:25:390
601859992214,7cyclictest0-21swapper/011:00:000
601859992213,4cyclictest0-21swapper/011:15:000
601859992212,6cyclictest620457-21aten_repower_vo07:25:310
601859992212,6cyclictest620457-21aten_repower_vo07:25:310
60185999217,7cyclictest644447-21sshd07:45:230
60185999215,9cyclictest809124-21tr10:00:390
60185999215,8cyclictest920405-21tr11:30:390
60185999214,5cyclictest784619-21irqcore09:40:370
60185999213,13cyclictest771092-130-systemd-envi09:28:430
601859992115,5cyclictest3023-21cron10:35:000
601859992115,2cyclictest637954-21sendmail07:40:000
601859992113,7cyclictest0-21swapper/012:40:020
601859992112,5cyclictest795814-21aten2.4-expect09:50:240
601859992111,6cyclictest601857-21cyclictest07:40:380
601859992111,5cyclictest3210-21rtkit-daemon11:20:090
601859992111,5cyclictest0-21swapper/010:15:010
60185999210,16cyclictest831442-21latency_hist10:20:000
601862992018,1cyclictest0-21swapper/311:55:013
601860992017,2cyclictest0-21swapper/108:05:001
601860992017,2cyclictest0-21swapper/107:55:001
60185999209,3cyclictest0-21swapper/012:30:010
60185999206,7cyclictest655034-21cut07:50:390
60185999206,7cyclictest246-21systemd-journal12:10:010
60185999206,12cyclictest246-21systemd-journal12:16:050
60185999205,7cyclictest617191-21cut07:20:400
60185999204,8cyclictest954814-21tr12:00:380
60185999201,9cyclictest771164-21ssh09:30:150
601859992011,2cyclictest885840-21cut11:05:010
601859992010,2cyclictest0-21swapper/010:00:010
601860991916,2cyclictest0-21swapper/111:20:001
60185999199,3cyclictest0-21swapper/012:30:460
60185999199,2cyclictest0-21swapper/007:35:010
60185999198,4cyclictest844-21mta-sts-daemon11:37:260
60185999196,4cyclictest0-21swapper/008:20:280
60185999194,7cyclictest672004-21cut08:05:420
601859991913,2cyclictest971512-21apt-key12:15:000
601859991913,2cyclictest952921-21sendmail12:00:000
601859991913,2cyclictest952921-21sendmail12:00:000
601859991912,3cyclictest246-21systemd-journal09:17:000
601859991912,2cyclictest0-21swapper/009:23:110
60185999190,9cyclictest739491-21cat09:00:400
601860991815,2cyclictest502-21rs:main1
601860991814,3cyclictest647101-21kthreadcore07:45:391
601860991814,3cyclictest477-21polkitd08:45:001
60185999189,2cyclictest0-21swapper/007:20:010
60185999185,7cyclictest890369-21tr11:05:410
601862991715,1cyclictest0-21swapper/308:55:003
601862991715,1cyclictest0-21swapper/307:55:013
601862991714,1cyclictest0-21swapper/310:10:003
601861991715,1cyclictest0-21swapper/209:10:012
60186099178,1cyclictest171rcu_preempt08:55:391
60186099177,8cyclictest771163-21rsync09:30:021
601860991714,2cyclictest606-21ModemManager09:23:121
601860991713,3cyclictest836-21ntpd10:30:381
601860991713,3cyclictest746686-21latency_hist09:10:001
601860991713,3cyclictest687119-21cpuspeed_turbos08:20:331
601860991713,3cyclictest477-21polkitd09:35:011
601860991713,3cyclictest1-21systemd09:14:011
60185999171,11cyclictest705138-21cut08:35:360
60186299163,6cyclictest771202-21chrt09:29:393
601862991614,1cyclictest0-21swapper/309:20:013
601861991614,1cyclictest0-21swapper/212:09:492
601861991614,1cyclictest0-21swapper/211:30:342
601861991614,1cyclictest0-21swapper/211:00:002
601861991614,1cyclictest0-21swapper/210:20:002
601861991614,1cyclictest0-21swapper/207:15:002
601861991613,1cyclictest0-21swapper/210:45:012
60186099166,9cyclictest935249-21cut11:45:341
601860991614,2cyclictest601857-21cyclictest08:30:391
601860991613,2cyclictest873678-21sh10:55:001
601860991613,2cyclictest873678-21sh10:55:001
601860991613,2cyclictest790095-21cstates09:45:331
601860991613,2cyclictest0-21swapper/110:30:011
601860991613,2cyclictest0-21swapper/108:30:011
601860991613,2cyclictest0-21swapper/108:10:011
601860991613,2cyclictest0-21swapper/107:40:001
601860991612,3cyclictest807354-21sendmail10:00:001
601860991612,3cyclictest67-21kauditd07:19:551
601860991611,4cyclictest682178-21kthreadcore08:15:381
601860991610,4cyclictest463-21avahi-daemon10:12:561
60185999168,7cyclictest861407-21sshd10:43:010
60185999166,2cyclictest481rcuog/209:45:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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