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2025-09-16 - 12:26

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 Tue Sep 16, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181354995237,11cyclictest391ktimers/300:10:143
181346994943,4cyclictest230053-21kworker/u8:1+events_unbound22:18:231
181342994737,6cyclictest240056-21grep21:55:300
181342994736,7cyclictest188239-21grep19:25:270
181350994636,7cyclictest276780-21grep23:40:262
181342994534,8cyclictest223466-21munin-plugin-st21:10:000
18135499442,12cyclictest280588-21cron23:54:593
18135499442,12cyclictest280588-21cron23:54:593
18135499441,8cyclictest226008-21/usr/sbin/munin21:15:273
181354994414,26cyclictest215079-21latency_hist20:45:013
18135499441,11cyclictest235314-21cron21:44:013
18135499441,11cyclictest235314-21cron21:44:013
181354994410,28cyclictest0-21swapper/321:50:163
18134699441,13cyclictest24-21ksoftirqd/120:40:141
181354994331,8cyclictest207894-21apt-key20:25:013
181354994312,28cyclictest216869-21/usr/sbin/munin20:50:243
18135499431,10cyclictest185272-21cron19:20:023
181346994335,5cyclictest1-21systemd20:23:011
18135499423,4cyclictest222554-21ntp_states21:05:203
18135499421,9cyclictest294942-21/usr/sbin/munin00:35:193
18135499421,8cyclictest267957-21/usr/sbin/munin23:15:273
181354994213,25cyclictest216806-21latency_hist20:50:013
181350994233,6cyclictest193402-21grep19:40:262
18135499417,28cyclictest0-21swapper/323:05:283
18135499412,6cyclictest198119-21meminfo19:55:183
18135499412,6cyclictest198119-21meminfo19:55:183
18135499412,6cyclictest186610-21users19:20:273
18135499411,9cyclictest293721-21/usr/sbin/munin00:30:263
18135499411,9cyclictest274950-21/usr/sbin/munin23:35:263
18135499411,9cyclictest272300-21/usr/sbin/munin23:30:233
18135499411,9cyclictest232667-21/usr/sbin/munin21:35:183
18135499411,9cyclictest219594-21/usr/sbin/munin20:55:253
181342994131,6cyclictest0-21swapper/021:20:000
18135499403,11cyclictest200416-21unixbench_singl20:00:273
18135499402,7cyclictest252902-21/usr/sbin/munin22:35:283
18135499402,11cyclictest195348-21users19:45:283
18135499401,9cyclictest290105-21/usr/sbin/munin00:20:243
18135499401,8cyclictest204502-21/usr/sbin/munin20:15:143
18135499401,8cyclictest189501-21/usr/sbin/munin19:30:213
18135499401,7cyclictest227113-21/usr/sbin/munin21:20:263
18135499401,7cyclictest187540-21/usr/sbin/munin19:25:193
18135499401,6cyclictest266646-21cron23:14:003
18135499401,6cyclictest212384-21/usr/sbin/munin20:35:273
18135499401,4cyclictest288223-21ntp_states00:15:213
18135499401,11cyclictest209948-21diskstats20:30:133
18135499400,10cyclictest195969-21apt-get19:50:133
181350994029,8cyclictest237113-21idleruntime-cro21:50:012
181350994028,9cyclictest311ktimers/222:40:142
18135499398,7cyclictest192849-21sort19:40:223
181354993928,7cyclictest292140-21grep00:25:253
18135499392,4cyclictest261656-21/usr/sbin/munin23:00:173
18135499391,9cyclictest260143-21fschecks_time22:55:173
18135499391,9cyclictest246689-21/usr/sbin/munin22:15:243
18135499391,8cyclictest258702-21/usr/sbin/munin22:50:253
18135499391,8cyclictest257403-21users22:45:273
181354993918,16cyclictest0-21swapper/320:05:293
18135499391,7cyclictest276008-21/usr/sbin/munin23:40:193
18135499391,6cyclictest224135-21/usr/sbin/munin21:10:193
18135499391,5cyclictest251797-21/usr/sbin/munin22:30:223
18135499391,5cyclictest209220-21users20:25:353
18135499391,5cyclictest209220-21users20:25:343
18135499391,11cyclictest191696-21head19:35:263
18135499391,10cyclictest243545-21users22:05:263
18135499391,10cyclictest243545-21users22:05:253
181350993932,5cyclictest202332-21kworker/u8:0+events_unbound20:13:002
181350993920,6cyclictest131rcu_preempt20:25:142
181350993920,6cyclictest131rcu_preempt20:25:142
181346993932,5cyclictest264717-21kworker/u8:1+events_unbound23:13:321
181346993930,6cyclictest292539-21cron00:30:011
181346993929,4cyclictest0-21swapper/122:55:001
181346993928,7cyclictest0-21swapper/120:40:001
181342993932,4cyclictest199146-21munin-plugin-st20:00:010
181342993932,4cyclictest199146-21munin-plugin-st20:00:000
18135499383,7cyclictest53-21kcompactd021:57:193
18135499383,5cyclictest278184-21sensors_temp23:45:233
18135499381,8cyclictest271686-21users23:25:263
18135499381,6cyclictest285716-21cron00:10:013
18135499381,6cyclictest248602-21/usr/sbin/munin22:20:243
18135499381,5cyclictest242226-21cron22:05:013
18135499381,10cyclictest283102-21ntp_kernel_pll_00:00:223
18135499381,10cyclictest282294-21cron23:59:593
18135499381,10cyclictest182079-21ntp_states19:10:223
181350993831,5cyclictest293967-21kworker/u8:1+events_unbound00:33:492
181350993820,6cyclictest278540-21kworker/u8:2+events_unbound23:51:542
181350993820,6cyclictest278540-21kworker/u8:2+events_unbound23:51:542
18135099381,14cyclictest0-21swapper/223:30:112
181346993829,5cyclictest245837-21cron22:15:011
181346993824,10cyclictest231ktimers/100:10:151
181342993827,7cyclictest0-21swapper/023:00:000
181342993826,8cyclictest263117-21cron23:05:000
18135499377,7cyclictest255323-21which22:40:253
18135499372,4cyclictest202792-21/usr/sbin/munin20:10:253
18135499371,9cyclictest229543-21sendmail_mailtr21:25:253
18135499371,9cyclictest229543-21sendmail_mailtr21:25:253
18135499371,7cyclictest236164-21/usr/sbin/munin21:45:203
18135499371,5cyclictest269929-21unixbench_multi23:20:293
18135499371,11cyclictest230624-21df21:30:163
18135499371,11cyclictest230624-21df21:30:163
18135499371,10cyclictest220628-21/usr/sbin/munin21:00:203
181346993731,4cyclictest242178-21kworker/u8:2+events_unbound22:08:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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