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2025-12-01 - 12:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

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.

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 rack2slot7s.osadl.org (updated Mon Dec 01, 2025 00:39:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3662301995039,8cyclictest1780552-21cups-browsed22:59:221
3662302994840,5cyclictest3689269-21sh20:40:012
3662302994840,5cyclictest3689269-21sh20:40:012
3662302994738,5cyclictest1-21systemd00:15:012
3662302994638,5cyclictest3766422-21munin-plugin-st22:40:012
3662302994538,4cyclictest3796863-21grep23:20:012
3662300994538,4cyclictest3784044-21cpuspeed23:04:090
3662302994338,2cyclictest0-21swapper/223:34:172
3662301994335,5cyclictest3686301-21systemd-run20:30:021
3662302994234,5cyclictest491-21gdbus23:00:012
3662301994234,5cyclictest3793031-21debian-sa123:15:011
3662301994232,5cyclictest0-21swapper/121:39:171
3662302994133,5cyclictest3717114-21unixbench_singl21:34:302
3662302994133,5cyclictest3668314-21systemd-run19:30:012
3662302994133,5cyclictest3668314-21systemd-run19:30:012
3662302994031,6cyclictest422-21dbus-daemon22:04:102
3662301994033,4cyclictest3837336-21sh00:15:011
3662301994032,5cyclictest3680296-21idleruntime-cro20:10:011
3662300994032,5cyclictest1-21systemd23:20:010
3662302993930,6cyclictest1780552-21cups-browsed21:19:562
3662302993929,7cyclictest3727106-21aten2.4-expect21:49:072
366230199396,28cyclictest3735258-21ssh21:59:221
366230199396,28cyclictest3735258-21ssh21:59:221
3662301993930,5cyclictest0-21swapper/120:20:011
3662301993930,5cyclictest0-21swapper/120:20:011
3662301993930,3cyclictest0-21swapper/122:04:211
3662300993931,5cyclictest1780552-21cups-browsed23:59:110
3662302993833,2cyclictest0-21swapper/200:29:172
3662302993831,3cyclictest0-21swapper/221:24:152
3662302993830,5cyclictest3777802-21unin-run22:55:012
3662302993830,5cyclictest3758337-21timerandwakeup22:29:292
3662302993830,5cyclictest3713638-21ssh21:30:022
3662302993829,6cyclictest3662305-21systemd-run19:10:012
3662301993830,5cyclictest3765963-21timerandwakeup22:39:351
3662301993827,6cyclictest0-21swapper/122:44:211
3662300993833,2cyclictest0-21swapper/019:55:020
3662300993831,3cyclictest0-21swapper/000:19:140
3662300993830,5cyclictest474-21in:imuxsock21:10:010
3662302993729,5cyclictest3698280-21diskmemload23:40:022
3662302993729,5cyclictest3695262-21sendmail21:00:012
3662302993729,5cyclictest3683288-21awk20:20:012
3662302993729,5cyclictest3683288-21awk20:20:012
3662301993732,2cyclictest0-21swapper/121:00:011
3662301993731,3cyclictest0-21swapper/120:40:011
3662301993731,3cyclictest0-21swapper/120:40:011
3662301993728,6cyclictest1-21systemd21:10:021
3662301993727,5cyclictest0-21swapper/122:14:111
3662300993730,5cyclictest3804002-21timerwakeupswit23:29:290
3662300993730,4cyclictest3766428-21systemctl22:40:010
3662300993722,3cyclictest0-21swapper/023:00:010
3662302993629,4cyclictest3770294-21latency_hist22:45:022
3662301993628,4cyclictest0-21swapper/100:04:171
3662300993631,2cyclictest0-21swapper/023:55:020
3662300993630,4cyclictest3755012-21sh22:25:010
3662300993626,8cyclictest3666872-21latency_hist19:25:020
3662300993626,7cyclictest3704600-21aten_r2power_vo21:19:090
3662300993626,7cyclictest0-21swapper/022:05:010
3662302993529,3cyclictest0-21swapper/200:04:232
3662302993527,5cyclictest421-21avahi-daemon00:33:262
3662302993527,4cyclictest0-21swapper/219:35:012
3662302993523,9cyclictest422-21dbus-daemon00:23:312
3662301993529,3cyclictest0-21swapper/100:39:221
3662301993528,4cyclictest3826971-21unixbench_singl23:59:291
3662301993528,4cyclictest3672881-21latency_hist19:45:021
3662301993528,3cyclictest0-21swapper/122:09:211
3662301993527,5cyclictest959-21mta-sts-daemon22:34:171
3662301993527,5cyclictest3687772-21cron20:35:011
3662301993524,8cyclictest3840464-21mailstats00:19:241
3662300993515,17cyclictest1780552-21cups-browsed22:49:290
3662302993428,3cyclictest0-21swapper/222:34:232
3662302993426,5cyclictest3815862-21idleruntime-cro23:45:012
3662302993426,5cyclictest3702020-21/usr/sbin/munin21:14:302
3662302993426,5cyclictest1780552-21cups-browsed20:24:092
3662302993424,7cyclictest3827309-40invoke-rc.d00:00:022
3662302993422,9cyclictest3772741-21sh22:49:162
3662301993426,5cyclictest3772483-21aten_r2power_fr22:49:081
3662301993424,5cyclictest0-21swapper/123:39:181
3662300993428,4cyclictest422-21dbus-daemon23:40:020
3662300993428,3cyclictest0-21swapper/020:20:010
3662300993428,3cyclictest0-21swapper/020:20:010
3662300993428,3cyclictest0-21swapper/019:19:180
3662300993426,5cyclictest421-21avahi-daemon20:44:190
3662300993426,5cyclictest1780552-21cups-browsed21:50:020
3662300993425,6cyclictest1780552-21cups-browsed21:11:190
3662302993327,3cyclictest0-21swapper/222:20:012
3662302993326,3cyclictest0-21swapper/223:49:182
3662302993326,3cyclictest0-21swapper/222:00:012
3662302993326,3cyclictest0-21swapper/222:00:012
3662302993324,6cyclictest3678787-21cron20:05:012
3662302993324,5cyclictest266-21systemd-journal22:10:012
3662302993322,8cyclictest3745731-21/usr/sbin/munin22:14:102
366230199333,23cyclictest3784625-21ssh23:04:221
3662301993326,4cyclictest3807939-21unixbench_singl23:34:291
3662301993326,4cyclictest3727629-21needreboot21:49:151
3662301993325,5cyclictest3683836-21fschecks_count20:24:111
3662301993324,6cyclictest3815889-21latency_hist23:45:021
3662301993324,5cyclictest3705819-21unixbench_singl21:19:311
3662300993327,4cyclictest3762285-21unixbench-2d22:34:310
3662300993327,4cyclictest3678190-21ntp_kernel_pll_20:04:200
3662300993325,5cyclictest0-21swapper/023:15:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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