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2026-06-15 - 01:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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 rackbslot5s.osadl.org (updated Sun Jun 14, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
817786995225,22cyclictest0-21swapper/309:25:053
817777995135,12cyclictest231ktimers/107:15:131
817777994942,5cyclictest819231-21kworker/u8:1+events_unbound07:14:551
817777994942,5cyclictest819231-21kworker/u8:1+events_unbound07:14:551
817786994536,6cyclictest0-21swapper/308:00:163
817777994534,8cyclictest231ktimers/111:25:141
817774994535,5cyclictest852850-21idleruntime-cro08:50:000
817781994436,5cyclictest916390-21munin-plugin-st11:55:002
817781994335,4cyclictest847521-21munin-plugin-st08:35:012
817777994333,6cyclictest855834-21unixbench_singl08:55:231
81778199421,9cyclictest894976-21/usr/sbin/munin10:50:212
81778199421,9cyclictest889359-21/usr/sbin/munin10:35:182
817777994236,4cyclictest830148-21kworker/u8:2+events_unbound08:04:581
817786994130,8cyclictest878012-21grep10:00:263
817786994118,20cyclictest0-21swapper/311:45:163
817781994128,9cyclictest311ktimers/211:45:122
81778199411,9cyclictest821085-21/usr/sbin/munin07:15:252
81778199411,8cyclictest875397-21/usr/sbin/munin09:55:172
81778199411,8cyclictest870777-21/usr/sbin/munin09:40:212
81778199411,8cyclictest862680-21/usr/sbin/munin09:15:262
81778199411,8cyclictest850356-21/usr/sbin/munin08:40:222
81778199410,9cyclictest856618-21/usr/sbin/munin09:00:142
817777994135,4cyclictest860995-21kworker/u8:2+events_unbound09:20:051
817777994123,5cyclictest131rcu_preempt07:34:541
817774994132,5cyclictest0-21swapper/008:25:010
817774994132,5cyclictest0-21swapper/008:25:000
81778199403,32cyclictest917064-21memory11:55:192
817781994017,20cyclictest645-21runrttasks10:20:262
81778199401,10cyclictest841796-21/usr/sbin/munin08:15:252
817777994033,5cyclictest871256-21kworker/u8:1+events_unbound09:45:071
817777994028,9cyclictest930613-21latency_hist12:35:011
817786993933,4cyclictest904438-21cron11:20:003
817786993933,4cyclictest904438-21cron11:20:003
817786993932,4cyclictest0-21swapper/309:45:263
81778199393,3cyclictest920901-21meminfo12:05:192
817781993932,4cyclictest840687-21cron08:15:012
817781993931,5cyclictest1-21systemd10:45:152
81778199391,9cyclictest872661-21/usr/sbin/munin09:45:232
81778199391,9cyclictest827824-21/usr/sbin/munin07:35:242
81778199391,9cyclictest824690-21/usr/sbin/munin07:25:262
81778199391,8cyclictest864158-21sed09:20:232
81778199391,5cyclictest887726-21/usr/sbin/munin10:30:172
81778199391,5cyclictest881227-21/usr/sbin/munin10:10:242
81778199391,11cyclictest926032-21memory12:20:192
817777993933,4cyclictest928539-21kworker/u8:0+events_unbound12:35:321
817777993933,4cyclictest894035-21kworker/u8:0+events_unbound10:54:411
817777993931,4cyclictest0-21swapper/108:40:001
817781993831,4cyclictest829160-21fschecks_count07:40:162
81778199382,4cyclictest907087-21/usr/sbin/munin11:25:232
81778199381,8cyclictest912376-21cat11:40:252
81778199381,8cyclictest831769-21/usr/sbin/munin07:45:262
81778199381,7cyclictest896534-21wc10:55:172
81778199381,6cyclictest901380-21/usr/sbin/munin11:10:132
81778199381,6cyclictest901380-21/usr/sbin/munin11:10:132
81778199381,6cyclictest853086-21apt-get08:50:132
81778199381,5cyclictest924453-21/usr/sbin/munin12:15:202
81778199381,4cyclictest903541-21/usr/sbin/munin11:15:212
81778199381,4cyclictest903541-21/usr/sbin/munin11:15:202
81778199381,4cyclictest866788-21/usr/sbin/munin09:30:132
81778199381,11cyclictest898326-21memory11:00:182
81778199381,11cyclictest882199-21df_inode10:15:142
81778199381,11cyclictest879259-21ntp_states10:05:252
81778199381,11cyclictest826530-21chrt07:31:292
81778199381,10cyclictest818630-21/usr/sbin/munin07:10:222
81778199381,10cyclictest818630-21/usr/sbin/munin07:10:222
817781993810,24cyclictest844256-21latency_hist08:25:012
817781993810,24cyclictest844256-21latency_hist08:25:012
81778199380,4cyclictest0-21swapper/207:50:132
817777993829,6cyclictest204-21dbus-daemon10:30:141
817777993825,5cyclictest131rcu_preempt10:35:151
817774993829,6cyclictest931941-21unixbench_singl12:35:260
817786993728,5cyclictest0-21swapper/312:20:003
817786993715,3cyclictest0-21swapper/309:15:243
81778199377,24cyclictest0-21swapper/211:30:182
81778199372,3cyclictest918918-21/usr/sbin/munin12:00:202
81778199371,9cyclictest873558-21/usr/sbin/munin09:50:272
81778199371,9cyclictest854781-21/usr/sbin/munin08:55:142
81778199371,8cyclictest890961-21diskstats10:40:152
81778199371,7cyclictest858541-21/usr/sbin/munin09:05:192
81778199371,7cyclictest821966-21apt-get07:20:152
81778199371,5cyclictest928365-21sshd12:25:272
81778199371,5cyclictest835942-21/usr/sbin/munin08:00:162
81778199371,4cyclictest877092-21/usr/sbin/munin10:00:142
81778199371,4cyclictest866124-21sshd09:25:342
81778199371,4cyclictest852110-21/usr/sbin/munin08:45:232
81778199371,3cyclictest910368-21ntp_states11:35:212
81778199371,3cyclictest905372-21/usr/sbin/munin11:20:222
81778199371,3cyclictest869010-21ntp_states09:35:222
81778199371,3cyclictest848083-21/usr/sbin/munin08:35:162
81778199371,3cyclictest0-21swapper/209:10:122
81778199371,3cyclictest0-21swapper/209:10:122
81778199371,31cyclictest901031-21cron11:10:002
81778199371,2cyclictest0-21swapper/208:05:152
81778199371,11cyclictest931702-21grep12:35:262
81778199371,10cyclictest929317-21irqstats12:30:162
817777993725,8cyclictest841923-21grep08:15:251
817786993628,5cyclictest833412-21unixbench_multi07:50:243
817786993626,5cyclictest0-21swapper/307:20:003
81778199369,22cyclictest0-21swapper/208:25:252
81778199361,9cyclictest922268-21df_inode12:10:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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